TAMRON CO., LTD. Patent applications |
Patent application number | Title | Published |
20160124200 | ZOOM LENS AND IMAGING APPARATUS - A zoom lens includes sequentially from an object side a first lens group having a negative refractive power; a second lens group having a positive refractive power; a third lens group having a negative refractive power; and a fourth lens group having a negative refractive power. The first lens group, the second lens group, the third lens group, and the fourth lens group are moved along an optical axis to zoom from a wide angle end to telephoto end and such that an interval between the first lens group and the second lens group decreases and distances that the second lens group and the fourth lens group are moved are equivalent. The third lens group is moved along the optical axis, toward an image side to focus from a focused state at infinity to a focused state at a minimum object distance. | 05-05-2016 |
20160124181 | WIDE ANGLE ZOOM LENS - A wide angle zoom lens includes sequentially from the object side, a first lens group having a negative refractive power overall and three lenses, including first to third lenses, having a negative refractive power and disposed farthest on the object side; a second lens group having a positive refractive power overall and one or more sets of cemented lenses; and a third lens group having a negative refractive power. This ultra wide angle zoom lens varies intervals between the first lens group, the second lens group, and the third lens group on the optical axis to zoom from the wide angle end to the telephoto end and satisfies given conditions to thereby enable a high zoom ratio, large diameter, and high resolution. | 05-05-2016 |
20150338620 | ZOOM LENS AND CAMERA DEVICE INCORPORATING THE SAME - Provided are: a zoom lens which exhibits a large variable-power ratio, an increased degree of freedom with respect to aberration correction, and which has been achieved having a sufficient reduction in size in the optical axis direction; and an imaging device equipped therewith. The zoom lens includes at least, from the object side, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, a fourth lens group, and a fifth lens group, in that order. In the zoom lens, prescribed conditions are satisfied. | 11-26-2015 |
20150301317 | INFRARED CAMERA APPARATUS - The infrared camera apparatus incorporates an infrared lens system that retains high resolution power and yet is successfully reduced in a required volume of infrared lens material that is hard to obtain and expensive, so as to attain a compact and cost-reduced infrared camera apparatus incorporating such an infrared lens system. The infrared lens system has at least a single Fresnel lens piece that has at least one of its opposite sides formed in a Fresnel surface. The Fresnel lens piece is made of a lens material of which transmissivity to light waves of one or more monowavelength(s) within an available wavelength range from 3000 nm to 14000 nm is 35% or higher when it takes a shape of 4-mm thickness uncoated parallel flat plate. | 10-22-2015 |
20150248016 | INNER FOCUS LENS - An inner focus lens includes sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a negative refractive power. The second lens group is moved along an optical axis, whereby focusing from a focus state for an object at infinity to a focus state for a minimum object distance is performed. A lens group configured by a lens other than a lens that is disposed farthest on the object side is moved in a direction orthogonal to the optical axis to shift an image. The inner focus lens satisfies a conditional expression (1) 0.15≦(1−βp)×βr≦4.50, where βp is transverse magnification of the orthogonally moved lens group and βr is composite transverse magnification of a lens group disposed farther on an image side than the orthogonally moved lens group. | 09-03-2015 |
20150247989 | INNER FOCUS LENS - An inner focus lens includes sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a negative refractive power. The second lens group is moved along the optical axis, whereby focusing from a focus state for an object at infinity to a focus state for a minimum object distance is performed. The inner focus lens satisfies a conditional expression (1) −29.0≦f3/f≦− | 09-03-2015 |
20150177498 | ZOOM LENS, AND IMAGING APPARATUS EQUIPPED WITH SAME - A zoom lens exhibits a reduction in size, increased magnification, a reduction in variation of angle of view during zooming, and an increased focusing speed, said zoom lens being suitable for an imaging apparatus using a solid-state imaging device such as an interchangeable lens, a digital still camera, a digital video camera, or the like. The zoom lens has, in the lens system, at least: a first negative lens group having negative refractive power; a second negative lens group disposed further towards the image side than the first negative lens group, and which has negative refractive power; and a lens group (A) disposed so as to be adjacent to the image side of the second negative lens group. In the zoom lens, focusing from an infinite distance to a near object is performed by moving only the second negative lens group towards the image side, and prescribed conditions are satisfied. | 06-25-2015 |
20150146284 | LENS FOR INFRARED CAMERAS - An infrared camera lens that is simple in lens configuration and has lens pieces including only spherical surfaces but no aspheric surfaces. The infrared camera lens includes a foremost or first single spherical lens piece of positive refractivity, a succeeding or second single spherical lens piece of negative refractivity, and a third single spherical lens piece of positive refractivity. At least the second single spherical lens piece of negative refractivity or the third single spherical lens piece of positive refractivity is movable for focusing. The design of the infrared camera lens facilitates and implements an airtight environment within the lens barrel because the foremost or first lens closest to the object stays still during focusing, and the entire length of the lens system is unchanged for focusing. | 05-28-2015 |
20150116819 | ZOOM LENS - A zoom lens includes sequentially from an object side a first lens group having a negative refractive power; an aberture stop; and a second lens group having a positive refractive power. The second lens group is moved along an optical axis toward the object side to zoom from a wide angle edge to a telephoto edge. The first lens group is moved along the optical axis toward en image side to correct image plane variation accompanying zooming. The second lens group includes sequentially from the object side, a positive lens having at least one aspheric surface, and a cemented lens configured by a negative lens, a positive lens, and a negative lens. The zoom lens satisfies a conditional expression (1) 1.804-30-2015 | |
20150116818 | INFRARED ZOOM LENS - Provided is a zoom lens that has a four-lens configuration and is capable of having a viewing angle of larger than 180°. Provided is an infrared zoom lens that has a long back focus. The present invention comprises a first lens group that has a negative refractive power, and a second lens group that has a positive refractive power. During zooming, the first lens group and the second lens group move on an optical axis, and each of the first lens group and the second lens group is configured of two single lenses. | 04-30-2015 |
20150070754 | INFRARED OPTICAL SYSTEM - An infrared optical system of two-lens structure comprises a front or first lens of negative refractive power and a rear or second lens of positive refractive power disposed in series relative to an object, the first lens having its concave surface faced toward the imaging plane, the second lens having its convex surface faced toward the object, the infrared optical system meeting the requirements as defined in the following formula 2.1≦d/f≦11, where d is an axial distance from the surface of the first lens closer to the imaging plane to the surface of the second lens closer to the object, and f is a focal length of the entire optical system. | 03-12-2015 |
20140347546 | Zoom Lens and Imaging Apparatus - A zoom lens includes a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, a fourth lens group having negative refracting power and a fifth lens group having negative refracting power in order from an object side, in which the lens groups move in magnification change from a wide angle end to a telephoto end such that a gap between the first lens group and the second lens group increases and a gap between the second lens group and the third lens group decreases, a negative lens group disposed closer to an image focusing side than a diaphragm among all lens groups is set as a focusing lens group, and the focusing lens group moves toward the image focusing side at focusing from infinity to a close object, the zoom lens satisfies a conditional expression, and the focus lens group is composed of a single lens block of a meniscus shape provided with a concave surface at an image focusing side; and satisfies a different conditional expression. | 11-27-2014 |
20140347545 | Zoom Lens and Imaging Apparatus - A zoom lens includes a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, a fourth lens group having negative refracting power and a fifth lens group having negative refracting power in order from an object side, in which the lens groups move in magnification change from a wide angle end to a telephoto end such that a gap between the first lens group and the second lens group increases and a gap between the second lens group and the third lens group decreases, a negative lens group disposed closer to an image focusing side than a diaphragm among all lens groups is set as a focusing lens group, and the focusing lens group moves toward the image focusing side at focusing from infinity to a close object, the zoom lens satisfies a conditional expression, the fifth lens group includes at least a single lens block of a meniscus shape provided with a concave surface at an object side, the single lens block of the meniscus shape has a negative focal distance and satisfies a different conditional expression. | 11-27-2014 |
20140347525 | Zoom Lens and Imaging Apparatus - A zoom lens includes a first lens group having positive refracting power, a second lens group having negative refracting power, a third lens group having positive refracting power, a fourth lens group having negative refracting power and a fifth lens group having negative refracting power in order from an object side, in which the lens groups move in magnification change from a wide angle end to a telephoto end such that a gap between the first lens group and the second lens group increases and a gap between the second lens group and the third lens group decreases, a negative lens group disposed closer to an image focusing side than a diaphragm among all lens groups is set as a focusing lens group, and the focusing lens group moves toward the image focusing side at focusing from infinity to a close object, and the fifth lens group includes at least a single lens block of a meniscus shape provided with a concave surface at an object side, the single lens block of the meniscus shape has a negative focal distance. The zoom lens and the fifth lens group each satisfies a respective conditional expression. | 11-27-2014 |
20140347524 | Zoom Lens and Imaging Apparatus - The zoom lens is composed of: an object side lens group at least including, in order from an object side: a first lens group G | 11-27-2014 |
20140347522 | Zoom Lens and Imaging Apparatus - The zoom lens includes at least, in order from an object side: a first lens group G | 11-27-2014 |
20140338175 | ANTI-VIBRATION ACTUATOR, LENS UNIT AND CAMERA FURNISHED THEREWITH, AND MANUFACTURING METHOD FOR SAME - To provide an anti-vibration actuator capable of smooth transition to image-blur prevention control. The present invention is an actuator ( | 11-20-2014 |
20140218800 | ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a negative refractive power, a fifth lens group having a positive refractive power, and a sixth lens group having a negative refractive power. The zoom lens varies the interval between the lens groups to perform zooming; shifts the second lens group in a direction substantially orthogonal to the optical axis to correct image blur occurring with optical system vibrations; and satisfies given conditions, enabling a compact size and a high zoom ratio to be achieved while improving imaging performance. | 08-07-2014 |
20140184884 | ZOOM LENS AND CAMERA DEVICE - The zoom lens comprises the foremost or first lens group of positive refractive power located the closest to an object, the succeeding second lens group of negative refractive power, and the third lens group of positive refractive power, all arranged in this order, and if any, the rearmost lens group(s) closer to the imaging plane than the third lens group, all or part of the lens group(s) of negative refractive power behind the third lens group being moved in directions normal to the optical axis to serve as an anti-vibration lens for shifting an image. The zoom lens meets requirements as defined in the formula regarding a displacement of the first lens group, a focal length of the zoom lens at the wide-angle end, a focal length of the zoom lens at the telephoto end, and a focal length of the first lens group. | 07-03-2014 |
20140184856 | ZOOM LENS AND CAMERA DEVICE - The zoom lens comprises five or more groups of lens pieces, namely, the foremost or first lens group of positive refractive power located the closest to an object, the succeeding second lens group of negative refractive power, the third lens group of positive refractive power, the fourth lens group of positive refractive power, and the fifth lens group all arranged in this order, and if any, the rearmost lens group(s) closer to the imaging plane than the fifth lens group. The zoom lens meets requirements as defined in the formula regarding a synthetic optical power of the fifth lens group and, if any, the rearmost lens group(s) closer to the imaging plane than the fifth lens group while the zoom lens is taking a posture of the telephoto end. | 07-03-2014 |
20140177065 | Zoom Lens - A high-power zoom lens that achieves size and price reduction, and at the same time provides high-quality imaging. This lens includes at least four lens groups arranged along an optical axis, which are moveable along the axis in order to achieve changes in magnification. The first, third, and fourth lens groups have positive refractive powers, and the second group has a negative refractive power. The second lens group includes a negative meniscus lens arranged closest to the object, provided with a convex surface at the object side. A negative lens is arranged next to the negative meniscus lens, and a negative lens provided with a concave surface at the object side is arranged closest to the image. The fourth lens group includes at least two positive lenses and one negative lens. | 06-26-2014 |
20140049845 | FIXED FOCUS LENS - A fixed focus lens comprising, sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The first lens group includes an aperture stop. The second lens group is configured by a single lens element. During focusing, the second lens group moves along an optical axis and the first lens group and the third lens group are fixed with respect to an imaging plane. | 02-20-2014 |
20140009835 | Anti-Reflection Coat and Optical Device - An anti-reflection coat includes an intermediate layer and a low refractive index layer sequentially stacked on a substrate, and preventing the reflection of incident light by optical interference effect, wherein the low refractive index layer is a film formed on the surface of the intermediate layer by a wet film formation method using a coating liquid including layer-constituting raw materials which includes hollow silica particles adhering each other with a binder, and the intermediate layer is a layer mainly composed of an organometallic compound which adheres well to the binder and having wettability to the coating liquid; and provides an optical device including the anti-reflection coat. | 01-09-2014 |
20130314444 | IMAGE DATA TRANSMITTING DEVICE, IMAGE DATA RECEIVING DEVICE, IMAGE DATA TRANSMITTING SYSTEM, IMAGE DATA TRANSMITTING METHOD, IMAGE DATA RECEIVING METHOD, TRANSMISSION IMAGE DATA, AND COMPUTER PRODUCT - An image data transmitting device inputs and outputs to an external device, fisheye image data that includes a fisheye image captured by a lens that causes distortion to occur in an image at a wide angle view. The image data transmitting device includes a distortion correction processing unit that corrects the distortion of the fisheye image and forms a distortion corrected image; and a transmission image data generating unit divides along a scanning line, the distortion corrected image into a plurality of lines, re-arranges the lines based on a given criterion, forms a converted image, inserts the converted imaged into an area in which no effective video signal of the fisheye image data is present, and generates transmission image data. | 11-28-2013 |
20130222923 | ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a negative refractive power. The zoom lens satisfies given conditions to implement a compact, large aperture ratio zoom lens having excellent optical performance and compatible with solid state image sensors capable of recording full high vision images. | 08-29-2013 |
20130222921 | ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and a fifth lens group having a negative refractive power. The zoom lens satisfies given conditions to implement a compact, wide angle, large aperture ratio zoom lens having excellent optical performance and compatible with solid state image sensors capable of recording full high vision images. | 08-29-2013 |
20130215518 | ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, an aperture stop, a third lens group having a positive refractive power, a fourth lens group having a positive refractive power, and fifth lens group. The zoom lens further satisfies given conditions. | 08-22-2013 |
20130201565 | Inner Focusing Telephotographing Zoom Lens - The present invention is directed to providing a large aperture telephotographing zoom lens that employs an inner-focusing system to enable quick focusing and avoid a great aberration when the zoom lens renders the close object in focus. The zoom lens comprises at least five groups of lens pieces arranged in series, namely, the foremost or first lens group of positive refractivity positioned the closest to the object, the succeeding second lens group of negative refractivity, the third lens group of negative refractivity, the fourth lens group of positive refractivity, and the rearmost or fifth lens group of positive refractivity. During varying the magnification for zooming in a transition from the wide-angle end to the telephoto end, all the lens pieces of the second, third, and fourth lens groups are moved toward the image plane, and the third lens group alone is displaced for focusing. | 08-08-2013 |
20130188268 | RETRACTABLE LENS BARREL - In a retractable lens barrel, during imaging, when a drive unit is driven accompanying the extension of the retractable lens barrel, a first lens and a second lens are moved along the optical axis to maintain a given interval between the first lens and the second lens, a rotating member rotates in a given direction and rotates centered about a line parallel to the optical axis, whereby a first optical element is inserted onto the optical axis. The second lens is moved such that a second optical element remains positioned on the optical axis. In this state, the entrance of outside light, which can cause image formation to be negatively affected, is prevented by the rotating member and a base member. Thus, light entering the inside of the retractable lens barrel is limited to the light transmitted by the first optical element and necessary for image formation. | 07-25-2013 |
20130182326 | Lens Barrel For Zoom Lens System - The lens barrel assembly suitable for a zoom lens comprises a pedestal barrel member secured to a mount member; a fixed barrel member secured in position closer to an object to the pedestal barrel member and having longitudinal grooves defined therein; a focus cam barrel member, a focus interlocking plate, and a first cam barrel member, each disposed inside the fixed barrel member; a second cam barrel member disposed inside any of the focus cam barrel member, the focus interlocking plate, and the first cam barrel member; a third cam barrel member disposed outside the fixed barrel member; an automatic focusing unit secured to an outer surface of the pedestal barrel member; and an anti-vibration unit disposed inside the pedestal barrel member and at least partially or completely overlapping the automatic focusing unit when the lens barrel assembly takes the position at the wide-angle end. | 07-18-2013 |
20130182316 | Infrared Fixed-Focus Lens - The invention provides an infrared fixed-focus lens of which component lens pieces are made of germanium featured by low chromatic dispersion, and have no surface processed to serve as diffraction optics. The infrared fixed-focus lens comprises the first lens piece disposed closer to an object and of negative refractivity, and the second lens piece disposed closer to the image plane and of positive refractivity. Both the first and second lens pieces are made of germanium. | 07-18-2013 |
20130182174 | RETRACTABLE LENS BARREL AND IMAGING APPARATUS - In an imaging apparatus, during an utilization state, optical elements and an image sensor are arranged on the same optical axis. During a retracted state, the optical elements in include at least one optical element that is moved from an optical axis position on the optical axis to a first retraction position that differs from the optical axis position; the image sensor is moved from the optical axis position to a second retraction position that differs from the first retraction position; and the moved optical element and the image sensor are arranged such that at least one portion of the move optical element and of the image sensor overlap in a plane substantially orthogonal to the optical axis. | 07-18-2013 |
20130163973 | Anti-Vibration Actuator, Lens Unit and Camera Furnished Therewith, and Manufacturing Method for Same - To provide an anti-vibration actuator capable of smooth transition to image-blur prevention control. The present invention is an actuator ( | 06-27-2013 |
20130148214 | Imaging Lens - The present invention is directed to an imaging lens with an optical system that comprises the foremost lens group closest to an object and of positive refractivity, the succeeding middle lens group, and the rearmost lens group closest to an image plane and of negative refractivity where the middle lens group, having the first, second, and third lens subgroups disposed in series, is moved axially along the optical axis for focusing, and the foremost lens group includes at least three or more convex lens pieces and a single concave lens piece and meets predetermined requirements defined in formulae. The imaging lens has a quality image stabilizing system in which a light-weight lens piece(s) is moved in directions perpendicular to the optical axis. | 06-13-2013 |
20130141590 | Infrared Camera - An object of the present invention is to provide an infrared camera capable of shading correction with ease and an improved degree of accuracy and has good maintenance ability. To achieve the object, an infrared camera provided with an infrared lens group and an infrared image sensor located at an image focusing surface of the infrared lens group in a housing in which a window is formed at a portion facing the object side of the infrared lens group comprising: a controller correcting a captured image according to an output from the infrared image sensor and outputting the corrected image; a shutter arranged on an infrared light path in the housing from the window to the infrared lens group; and a temperature sensor detecting the temperature of the shutter is adopted. | 06-06-2013 |
20130135713 | Lens for Infrared Cameras - This invention is directed to provide an infrared camera lens that is simple in lens configuration and has lens pieces including only spherical surfaces but no aspheric surfaces. The invention is also directed to provide an infrared camera lens of a design that facilitates and implements an airtight environment within the lens barrel because the foremost or first lens closest to the object stays still during focusing, and the entire length of the lens system is unchanged for focusing. The infrared camera lens comprises the foremost or first single spherical lens piece of positive refractivity, the succeeding or second single spherical lens piece of negative refractivity, and the third single spherical lens piece of positive refractivity. At least the second single spherical lens piece of negative refractivity or the third single spherical lens piece of positive refractivity is to be moved for focusing. | 05-30-2013 |
20130100539 | ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens group having a positive refractive power, a second lens group having a negative refractive power, an aperture stop, and a third lens group having a positive refractive power. The first lens group includes a negative lens and a positive lens. The second lens group includes sequentially from the object side, a negative lens, a negative lens, and a positive lens. The third lens group includes sequentially from the object side a front group having a positive refractive power, a middle group having a negative refractive power, and a rear group having a positive refractive power. The front group is formed by a positive aspheric lens. The middle group is includes a cemented lens formed by a positive lens and a negative lens. | 04-25-2013 |
20130088607 | Anti-vibration Actuator and Lens Unit and Camera Furnished with Same - The present invention is an anti-vibration actuator ( | 04-11-2013 |
20130050827 | ZOOM LENS - A zoom lens includes sequentially from an object side, a first lens section G | 02-28-2013 |
20130003168 | Infrared Zoom Lens - The present invention is directed to an infrared zoom lens that is adapted to have a reduced number of lens pieces and that is especially capable of holding field curvature and spherical aberration down on developing more during zooming. The infrared zoom lens comprises the first lens of a single positive-powered lens piece, the second lens of a single negative-powered lens piece, and the third lens of a single positive-powered lens piece where all the lens pieces are spherical lenses; and the infrared zoom lens has its first lens staying still in a fixed position and its second and third lens moved along the optical axis for the zooming. | 01-03-2013 |
20120293879 | INTERNAL FOCUS LENS - An internal focus lens comprising sequentially from an object side a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The second lens group is configured by a simple lens element and is moved along an optical axis to perform focusing. The internal focus lens satisfies condition expressions (1) 0.48<|f3|/f<0.73 and (2) 1.0511-22-2012 | |
20120293869 | INTERNAL FOCUS LENS - An internal focus lens includes sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. The first lens group includes an anti-vibration lens formed by a negative lens that is moved in an orthogonal direction with respect to an optical axis to correct image blur consequent to optical system vibration, and further includes an aperture stop disposed farther on an image side of the first lens group than the anti-vibration lens. The second lens group is moved along the optical axis to perform focusing. | 11-22-2012 |
20120251803 | Antireflection Film and Optical Device - An object of the present invention is to provide an antireflection film and an optical device having excellent antireflection characteristics against a light beam having a wide wavelength range at a wide range of an incident angle, and also having practically sufficient durability. To achieve the above object, the present invention adopts an antireflection film having an optical two-layer structure composed of an intermediate layer provided on a base material and a low refractive index layer provided on a surface of the intermediate layer, wherein the low refractive index layer is a layer obtained by binding hollow silica by a binder, a refractive index n(1) thereof is between 1.15 and 1.24 inclusive, and a refractive index n(2) of the intermediate layer satisfies a relation in the expression (1) below assuming a refractive index of the base material n(sub). | 10-04-2012 |
20120229906 | Anti-Reflection Optical Element and Method for Manufacturing Anti-Reflection Optical Element - An object of the present invention is to provide an anti-reflection optical element excellent in durability in the environment high-temperature and high-humidity and scratch resistance while maintaining the anti-reflection performance of a concave-convex nanostructure. | 09-13-2012 |
20120212808 | Infrared Lens - The present invention is directed to an infrared lens that ensures sufficient quantity of light incident on light receiving elements so as to produce a clear infrared picture. The infrared lens comprises a first or leading lens unit of positive refractivity closer to an object, and a trailing lens unit. The trailing lens unit consists of at least a second group of lens pieces located closer to an imaging plane than the first lens unit, and a third group of lens pieces located closer to the imaging plane than the second group of lens pieces. The trailing lens unit is displaced in any direction perpendicular to the optical axis for compensating for image vibration. | 08-23-2012 |
20120212807 | Infrared Lens - An infrared lens has three lens groups put in serial order from a position closer to an object, namely, the foremost or first group of lens pieces of positive refractivity, the succeeding or second group of lens pieces of negative refractivity, and the rearmost or third group of lens pieces of positive refractivity, and a substance of the second group of lens pieces having greater dispersive power than that or those of the first and third groups of lens pieces. The infrared lens assuredly retains sufficient brightness, namely, having an appropriate numerical aperture, but yet no longer suffers chromatic aberration for rays in a wavelength range of 10 μm or so in addition to fully correcting spherical aberration, comatic aberration, and curvature of field, thereby attaining clear and vivid focused images. | 08-23-2012 |
20120212806 | Infrared Lens Unit and Infrared Camera System Provided with the Infrared Lens Unit - An object of the present invention is to provide an infrared lens unit having a high optical quality and an infrared camera system provided with the infrared lens unit. An infrared lens unit according to the present invention to achieve the object is the infrared lens unit to be attached to an infrared camera-module characterized in comprising a data memory for storing lens data and an image focusing condition is controlled according to the data stored in the data memory and temperature data in the infrared lens unit. | 08-23-2012 |
20120212805 | Lens Unit for Infrared Camera and Infrared Camera Using the Same - A lens unit for an infrared camera is provided with one or more infrared transmitting lenses; a lens barrel which houses the infrared transmitting lens via a lens holding frame; and an actuator for performing image fluctuation correction of an infrared transmitting lens serving as a correction lens using magnetic means to prevent image fluctuation of a photographed image. The lens holding frame for the infrared transmitting lens serve as the correction lens and includes a fixing opening for the infrared transmitting lens and a shielding wall standing in an optical axis direction on an outer periphery of the fixing opening for the lens, and a separating space is provided between the correction lens and the lens barrel. | 08-23-2012 |
20120212621 | Back Focus Adjusting System for Infrared Camera and Back Focus Adjusting Method for Infrared Camera - Disclosed is a back focus adjusting system for an infrared camera including a lens unit having a lens group to be mounted on the camera main body. The camera main body includes an infrared detector disposed in a vacuum chamber and has a detecting surface that detects the infrared rays; a memory means that stores a position information on the detecting surface obtained by measuring a position in an optical axis direction of the detecting surface of the infrared detector; and a transmitting means that transmits the position information on the detecting surface to the lens unit. The lens unit includes a receiving means that receives the position information on the detecting surface transmitted from the transmitting means of the camera main body and focal position adjusting means that adjusts a position in the optical axis direction of the lens group. | 08-23-2012 |
20120212620 | Mounting Structure of Infrared Camera and Infrared Camera Provided with the Same - An object of the present invention is to provide a mounting structure of infrared camera which enables effective transfer of heat generated in an image sensor to a lens unit without increasing the size of the infrared camera. In order to achieve the object, a mounting structure of infrared camera comprising a lens-side mount disposed in a lens unit in which an imaging lenses are disposed; and a camera main body-side mount disposed in a camera main body and geared with the lens-side mount in an attachable and detachable manner, wherein the geared portion between the lens-side mount and the camera main body-side mount has a contact area effective for heat transfer of 36% or more of the total surface area is adopted. | 08-23-2012 |
20120211655 | Optical Arrangement of Infrared Camera - Provided is an optical arrangement of the infrared camera comprising a lens unit in which a lens is supported by a frame body, an infrared detector module in which an infrared detector for detecting amount of an infrared ray transmitted through the lens as a heat and converting the infrared rays to an image signal is sealed in a housing having a window portion, and a shutter provided between the lens and the infrared detector module. A detector surface of the infrared detector, the window portion, the shutter, and the lens are arranged such that an inclination angle of a virtual straight line which connects each corner portion of the detector surface, the window portion and a maximum aperture of the shutter, and edge portion of an effective lens area of a lens closest to the shutter against to an optical axis is 25° to 35°, is adopted. | 08-23-2012 |
20120201526 | Camera for capturing moving images - Provide a camera capable of effectively suppressing image blurring even when high frequency vibrations are imposed. The present invention is a camera for capturing moving images furnished with an image-blur prevention function, including an imaging unit ( | 08-09-2012 |
20120200197 | Oscillation Motor and Lens Driving Mechanism - An oscillation motor is provided in which the influence of vibration on other components by avoiding generation of noise in operation is reduced. The oscillation motor that makes an oscillator vibrate and transmits the vibration generated in the oscillator as a driving force by bringing the oscillator into pressure-contact with a driven body includes a base member; an oscillator that is mounted on the base member and is provided with a protruding output section on one side surface on one end side, the output section is arranged in contact with the driven body; and a press mechanism that is mounted on the base member and presses the oscillator toward the driven body on the other side surface on the opposite end side of the oscillator, wherein an vibration insulating member is provided between the base member and the press mechanism is employed. | 08-09-2012 |
20120194924 | INTERNAL FOCUSING LENS - An internal focusing lens includes sequentially from an object side, a first lens group having a positive refractive power; a second lens group having a negative refractive power; and a third lens group having a positive refractive power. During focusing, the second lens group is moved along the optical axis and, the first lens group and the third lens group are fixed. The internal focusing lens satisfies a conditional expression (1) 0.3108-02-2012 | |
20120182630 | Oscillator Holding Mechanism, Oscillation Motor, and Lens Driving Device - An oscillator holding mechanism capable of generating a stable vibration in an oscillator and an oscillation motor having the oscillator holding mechanism are disclosed. The oscillator holding mechanism present within an oscillation motor includes an oscillator that has a protruding output section on one end that generates a predetermined movement in the output section by vibration, a holding member that holds and accommodates the oscillator, and a buffer member that is made of an elastic material and is provided between the oscillator and the holding member. The buffer member has a first surface in contact with the holding member having a larger area than a second surface in contact with the oscillator and a cross sectional shape including a center axis that connects a center point of the first surface and a center point of the second surface that is axisymmetric with respect to the center axis. | 07-19-2012 |
20120140347 | Oscillation Motor and Lens Driving Mechanism - An oscillation motor is adapted to press an oscillator toward a driven body in a stable state and increasing a drive efficiency. A lens driving mechanism is adapted to move a lens with excellent efficiency by using the oscillation motor. An oscillation motor generates motive power by pressure contact with a driven body to transmit vibration of the oscillator to the driven body. The oscillation motor includes the oscillator having a convex output portion on a side surface at one end side. The output portion of the oscillator is arranged to contact with the driven body. A press mechanism is also provided on a side surface at the other end side of the oscillator. The press mechanism includes a pressure correction device rotatably equipped at a position where the pressure correction device contacts with the oscillator, and the pressure correction device applies a pressure to the oscillator in a predetermined direction. | 06-07-2012 |
20120127576 | ANTI-VIBRATION ACTUATOR AND LENS UNIT AND CAMERA FURNISHED WITH SAME - The present invention is an anti-vibration actuator ( | 05-24-2012 |
20110317293 | Oscillation Motor Unit, Oscillation Motor, and Lens Driving Device Using Oscillation Motor - The object of the present invention is to provide a driving mechanism which is a higher powered motor that can be used even when an installation space is limited by reducing a space required for installation of the motor as a motive power of a driving mechanism, and which prevents the influences of vibration and heat generation in the operation. To achieve the object, an oscillation motor unit, an oscillation motor and a lens driving device are employed in which the vibrator, a push mechanism pushing the vibrator in a specific direction to transmit the motive power of the vibrator in which a vibrator is made vibrate and convert the vibration energy to a motive power transmitted are included, wherein a first base member for setting the vibrator and the push mechanism is set at the position where the first base member is sandwiched between the vibrator and the push mechanism. | 12-29-2011 |
20110290053 | POWER TRANSMISSION DEVICE - A sun gear member, planetary gear members, a first ring gear member, and a second ring gear member together form a paradox gear mechanism. A clutch mechanism is disposed between an input gear member and the first ring gear member. The clutch mechanism rotates the first ring gear member, when the input gear member rotates. The clutch mechanism disconnects transmission of the power to the input gear member when the first ring gear member rotates. The sun gear member and the first ring gear member are individual input elements. When one of the sun gear member and the first ring gear member exclusively rotates, the second ring gear member rotates in accordance with the rotation. The sun gear transmits power more reliably without increasing manufacturing cost and without thwarting downsizing of the product. | 12-01-2011 |
20100321805 | Lens-Driving Unit - Provided is a lens-driving unit reduced in size and improved in durability, A first flexible printed wiring board of the lens-driving unit has a terminal on one side connected to a first piezoelectric motor and lead in parallel to an optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to an opposite direction to the leading direction. A second flexible printed wiring board of it has a terminal on one side connected to a piezoelectric motor and lead in parallel to the optical axis, and the other side connected to a unit for power supply and control, in a loop shape gently bent to the opposite direction to the leading direction. At such reference plane a structure symmetrically having the second and the first flexible printed wiring board with respect to a reference plane, is employed. | 12-23-2010 |
20100315730 | Lens-Driving Unit - Provided is a lens driving device reduced in sizes. In a right side region divided by a virtual center line vertically passing the outer circumference region of both lens group holding frames, including an optical axis, a lens driving device concentratedly has a first guide pole, a second guide pole, a lead screw of a first piezoelectric motor, and a lead screw of a second piezoelectric motor, when viewed from the front. Furthermore, the lead screw of the first piezoelectric motor and the lead screw of the second piezoelectric motor are arranged in an intermediate region between the first guide pole and the second guide pole. | 12-16-2010 |
20100314962 | Three-Phase Brushless DC Motor - An object of the present invention is to provide a three-phase brushless DC motor providing a high torque and performs stable operations which can be used even when an installation space is restricted. To achieve the object, the present invention adopts an inner rotor-type three-phase brushless DC motor in which an inner rotor-type three-phase brushless DC motor comprising a rotor provided with a plurality of magnetic poles divided equally in a circumferential direction at an outer peripheral of the rotor and a stator separately arranged along an outer peripheral of the rotor, wherein the stator is provided with M−n (wherein, n is an integer equal to or larger than 1) of stator sections each provided with three stator poles each having different phases, and the relationship between number of magnetic poles provided in the rotor and the total number of stator poles is made different from the conventional one. | 12-16-2010 |
20090324210 | Method for Arranging Flexible Printed Wiring Board in Lens Barrel of an Imaging Device, and Imaging Device Using Flexible Printed Wiring Board Arranged by the Same Method - An object of the present invention is to provide a method for arranging an FPC in a lens barrel of an imaging device which allows installation of new function to an imaging device without eliminating function installed and size up. To solve the problem, the FPC electrically connect plurality of a optical elements movable which constitute an optical unit arranged movably along the optical axis, to the control unit that controls the operation of the optical elements movable, is made to comprise an extension section extending from a connector of the control unit in a state able to be fixed to a lens barrel, a fixed section fixed to the lens barrel, and a bent turn back section extending from the fixed section and then turn back in a loop shape with a terminal provided on the edge, and the terminal is connected to the optical element movable constituting the optical unit. | 12-31-2009 |
20090296238 | Lens Apparatus and Image Pickup Apparatus Using the Same - This invention has as its object to provide a lens apparatus for an image pickup apparatus which can be reduced in size and is excellent in driving accuracy. In order to achieve the above-described object, this invention adopts a lens apparatus including a prism having an entrance surface which receives a light beam incident from a subject side, a reflection surface which deflects a light beam incident from the entrance surface, and an exit surface which emits a light beam deflected by the reflection surface toward an image pickup surface side, a prism holder which holds the prism, a lens group of subject side, and a lens group of image pickup surface side, wherein the lens group of subject side is fixed to the entrance surface of the prism and/or the lens group of image pickup surface side is fixed to the exit surface of the prism. | 12-03-2009 |
20090257139 | Lens Driving Mechanism and Image Pickup Apparatus Using the Same - A lens driving mechanism for an image pickup apparatus capable of being reduced in size, and having excellent driving accuracy and tranquility is provided. The lens driving mechanism is characterized in that vibration of a piezoelectric vibration motor is used as a driving source, and the vibration is transmitted to a motor power transmission ring directly or via a gear structure, to rotationally drive a lens driving ring. In a first lens driving mechanism, the motor power transmission ring is rotated by rotating the first transmission gear by use of the vibration of the piezoelectric vibration motor. In a second lens driving mechanism, a thrust bearing is provided on a gear side for rotating the motor power transmission ring, and the gear is rotated by vertically pressing a vibrator of the piezoelectric vibration motor in an urged state against a plane of the gear. In a third lens driving mechanism, the lens driving ring is rotationally driven by directly pressing a vibrator of each of one or more piezoelectric vibration motors in an urged state against the outer periphery of the lens driving ring. | 10-15-2009 |
20090251810 | Lens Drive Unit Installation Structure and Lens Drive Unit - The present invention aims to provide a lens drive unit installation structure which enhances dust resistance to improve reliability and realizes miniaturization and easiness to assemble. For achieving the purposes, the lens drive unit installation structure for installing a lens drive unit including: a lens holding frame for holding a lens, and a lens moving mechanism for slidingly move the lens holding frame in the direction of an optical axis using a drive source, wherein the drive source to be linked with the lens moving mechanism is arranged on the side of the lens holding frame view from the direction of the optical axis, and a partition is set between the lens holding frame and the drive source, thereby the lens and the drive source are arranged separately from each other. | 10-08-2009 |
20090251796 | RETRACTABLE ZOOM LENS - A retractable zoom lens includes sequentially from an object side, a first lens group having positive refractive power, a second lens group having negative refractive power, a third lens group having positive refractive power, and a fourth lens group having positive refractive power. The third lens group includes sequentially from the object side, a first lens that is a positive lens, a second lens that is a positive lens, and a third lens that is a negative lens. The retractable zoom lens performs variable magnification by independently moving the respective lens groups along the optical axis. Further, the retractable zoom lens satisfies given conditions and maintains high optical performance while enabling a wider angle and a reduction of overall length. | 10-08-2009 |
20090244732 | Lens Driving Unit and Lens Driving Device - Object of the present invention is to provide a lens driving unit in small size and perform a high ratio optical zooming and a lens driving device. To achieve the object, the lens driving unit in which the lens group holding frame supported to be able to slide by connecting to a guide pole arranged in parallel with the optical axis; and a drive transmission unit consisting of a pinion mounted on the output shaft of the motor and a rack formed in the lens group holding frame is adopted, and a driving force of the motor is transmitted to the lens group holding frame by gearing the pinion with the rack to make the lens group holding frame slide along the guide pole, and a lens driving device comprising the lens driving unit is adopted. | 10-01-2009 |
20090237816 | Lens Holding Frame, Lens Driving Device, and Imaging Device - An object of the present invention is to provide a lens holding frame which enables a down-sizing, less fluctuation in a sliding motion of the lens in the direction parallel with the optical axis, and excellent durability, a lens driving device, and an imaging device. To achieve the object, the lens holding frame for holding a lens driven for image focusing comprising the main body of a lens frame and a sliding guide device connected to the outer edge of the main body; and the sliding guide device comprising a rack which transmit power transmitted from a driving source via a pinion on the surface are adopted, and are assembled to enable sliding along a guide pole provided in parallel with the optical axis in an outer peripheral part of the sliding motion path of the lens driven for image focusing to focus the image. | 09-24-2009 |
20090219625 | LENS BARREL AND IMAGING APPARATUS - The positioning of the first through the third lenses in the optical axis direction is performed in the state that the optical axes are aligned by press-fitting the outer circumference surfaces of the first through the third lenses of the second lens group respectively to the first through the third lens holding portions of the lens frame and the state that the first reference plane of the first lens and the second reference plane of the second lens are contacted and the third reference plane of the second lens and the fourth reference plane of the third lens are contacted. | 09-03-2009 |
20090205465 | SLIDING DEVICE COMPOSED OF COMBINED STRUCTURE OF SCREW BOLT AND NUT - An object of the present invention is to provide a sliding device that can surely reduce damage caused by mutual sliding behavior. To achieve the object, a sliding device in which a screw bolt having a male thread and a nut having a female thread hole in which a female thread is formed on an inner circumference are screwed together in a state capable of screw rotation and applied with repeating screw rotation so that the male thread and the female thread are subjected to a sliding load, wherein when Vickers hardness of a first metal material constituting the male thread of the screw bolt is H | 08-20-2009 |
20090174954 | Connecting method or lenses for an imaging-device, lens unit constructed by using the connection method and imaging-device comprising the lens unit - To connect N lenses to construct a lens unit for an imaging-device in series, (n−1)-th (where 2≦n (integer)≦N) lens having an outer periphery rim region which extends with a certain thickness from an outer periphery edge end portion of the lens region directing to the side of the adjacent nth lens and the outer periphery rim region which has a circular-arc tapered surface inclined with respect to an optical axis on a outer part of the lens region, and the nth lens having a bulgy-protrusion-shaped portion with head-top portion milled to be round along an outer part of the lens region on a surface of an outer periphery rim region opposed to the (n−1)-th lens are arranged, and lens position adjustment is made by putting the bulgy protrusion-shaped portion to the circular-arc tapered surface to perform point contact. | 07-09-2009 |
20090025499 | Drive unit - Object of the present invention is to provide a miniaturized drive unit which has the function of measuring the slide distance of a driven object. The drive unit | 01-29-2009 |
20090002827 | Lens barrel - There is provided a lens barrel including an imaging optical system, and an image blur correction unit moving a shift lens forming the imaging optical system in a plane perpendicular to an optical axis of the imaging optical system. The image blur correction unit includes a second movable body holding the shift lens and provided to be movable in two directions perpendicular to each other on a plane perpendicular to the optical axis. A fixed lens holding frame holding a fixed lens forming the imaging optical system is placed in front of the second movable body. A movement control structure is provided in a region ranging from the second movable body to the fixed lens holding frame to allow movement of the second movable body in the two directions and control a range of movement of the second movable body. | 01-01-2009 |
20090002826 | Lens barrel - There is provided a lens barrel including: a rear barrel to which an imaging device is attachable, an imaging optical system leading a subject image to the imaging device, and an image blur correcting unit moving a shift lens forming the imaging optical system in a plane perpendicular to an optical axis of the imaging optical system. The image blur correcting unit includes a base supporting the shift lens in a plane perpendicular to the optical axis of the imaging optical system. The lens barrel includes a support mechanism supporting the base to be movable relative to the rear barrel along a plane perpendicular to the optical axis; and a fixing device fixing the base to the rear barrel. | 01-01-2009 |