Patent application number | Description | Published |
20090034398 | OBJECT LENS, OPTICAL PICKUP, AND OPTICAL DISC DEVICE - An optical pickup includes: a first emitting unit to emit an optical beam of a first wavelength; a second emitting unit to emit an optical beam of a second wavelength; a third emitting unit to emit an optical beam of a third wavelength; an object lens to condense optical beams emitted from the first through third emitting units onto a signal recording face of an optical disc; and a diffraction unit provided on one face of an optical element or the object lens positioned on the optical path of the optical beams of the first through third wavelengths; wherein the diffraction unit includes a generally circular first diffraction region provided on the innermost perimeter, a ring zone shaped second diffraction region provided on the outer side of the first diffraction region, and a ring zone shaped third diffraction region provided on the outer side of the second diffraction region. | 02-05-2009 |
20090135705 | OPTICAL PICKUP AND OPTICAL DISC DEVICE - An optical pickup for performing recording and/or playback of information by selectively irradiating the corresponding wavelength optical beam to first through third optical discs having a protection layer with different thickness, includes emission units for emitting first-wavelength through third-wavelength optical beams corresponding to the respective optical discs respectively, a condensing optical device for condensing each wavelength optical beam on an optical disc signal recording face, a divergence angle transformation device, which can be moved in the optical axis direction, for transforming the divergence angle of each wavelength optical beam according to the moved position in the optical axis direction so as to obtain a predetermined divergence angle, and a detector having a common light receiving unit for receiving each wavelength optical beam separated by an optical path separating unit and returned, with the condensing optical device condensing each wavelength optical beam on the corresponding optical disc signal recording face appropriately. | 05-28-2009 |
20100002562 | OPTICAL PICKUP AND OPTICAL DISC APPARATUS USING THE SAME - An optical pickup includes a light source emitting a light beam, an objective lens condensing the light beam emitted from the light source onto an optical disc, at least one divergent angle conversion lens (collimator lens) disposed between the light source and the objective lens and changing a divergent angle of the incident light beam, a driving unit (collimator lens driving mechanism) configured to drive the divergent angle conversion lens in a direction of an optical axis, an optical detection device (optical detector) detecting a return light beam reflected at the optical disc, and an environmental change detecting unit (temperature sensor) configured to detect change in environmental temperature, wherein the objective lens is made of a refractive element having, on one surface thereof, a diffraction structure in a stepped shape or a blazed sectional shape, which generates diffraction light providing a spot adapted to perform satisfactory recording and/or reproducing, the objective lens satisfying certain relationships among an amount of wavefront aberration thereof corresponding to change in environmental temperature, an amount of the change in environmental temperature, and a focal length. | 01-07-2010 |
20100149955 | OPTICAL PICK UP AND OPTICAL DISC APPARATUS - An optical pickup includes: a light source emitting a beam having a predetermined wavelength; a plastic objective lens condensing the emitted beam on an optical disc; a light detector receiving and detecting the beam reflected by the optical disc; an objective-lens driving unit driving the objective lens in the tilt direction to tilt the objective lens; and a tilt-sensitivity sensing unit sensing a tilt sensitivity denoted by ΔW | 06-17-2010 |
20110075543 | OBJECT LENS, OPTICAL PICKUP, AND OPTICAL DISC DEVICE - An optical pickup includes: a first emitting unit to emit an optical beam of a first wavelength; a second emitting unit to emit an optical beam of a second wavelength; a third emitting unit to emit an optical beam of a third wavelength; an object lens to condense optical beams emitted from the first through third emitting units onto a signal recording face of an optical disc; and a diffraction unit provided on one face of an optical element or the object lens positioned on the optical path of the optical beams of the first through third wavelengths; wherein the diffraction unit includes a generally circular first diffraction region provided on the innermost perimeter, a ring zone shaped second diffraction region provided on the outer side of the first diffraction region, and a ring zone shaped third diffraction region provided on the outer side of the second diffraction region. | 03-31-2011 |
20110112795 | LIGHT CONDENSING LENS AND THREE-DIMENSIONAL DISTANCE MEASURING APPARATUS - A light condensing lens includes a plurality of lenses disposed side by side in a splitting direction of a view angle to condense incident light over a range corresponding to respective split portions of the view angle. The view angle is split in a direction orthogonal to an optical axis of the incident light. | 05-12-2011 |
20130016305 | ILLUMINATION UNIT AND DISPLAYAANM Kaneda; KazumasaAACI KanagawaAACO JPAAGP Kaneda; Kazumasa Kanagawa JP - An illumination unit includes: a light source section including a laser light source; an optical-path branching device outputting light incident from the light source section, by branching the light into an outgoing optical path of illumination light and other optical path; a photodetector receiving a light flux that travels on the other optical path; a control section controlling an emitted light quantity in the laser light source, based on a quantity of the light flux received by the photodetector; and a light-quantity-distribution control device disposed between the optical-path branching device and the photodetector on the other optical path, the light-quantity-distribution control device controlling a light quantity distribution in the light flux to be incident upon the photodetector. | 01-17-2013 |
20130223075 | LIGHT CONDENSING LENS AND THREE-DIMENSIONAL DISTANCE MEASURING APPARATUS - A light directing system including first and second relay lenses through which light passes, the first and second relay lenses being positioned at conjugate positions, the first relay lens being positioned between the second relay lens and a light source, a focal length of the first relay lens being longer than a focal length of the second relay lens. | 08-29-2013 |
20130235353 | ILLUMINATING UNIT AND DISPLAY - An illuminating unit includes: a light source section including a laser light source; a first uniformizing optical member on which light from the light source section is incident; and a second uniformizing optical member including a plurality of first unit cells and a plurality of second unit cells and on which light from the first uniformizing optical member is incident. The first unit cells are arranged on a light incidence surface of the second uniformizing optical member and each have an anisotropic shape with a major-axis direction as a first direction and a minor-axis direction as a second direction, and the second unit cells are arranged on a light emission surface of the second uniformizing optical member and each have a shape protruding along both the first direction and the second direction. | 09-12-2013 |
20130258215 | ILLUMINATION DEVICE AND DISPLAY UNIT - An illumination device includes: a light source section including a laser light source; a uniformization optical member including a plurality of unit cells which are two dimensionally arranged, and receiving light from the light source section; an optical device disposed on an optical path between the light source section and the uniformization optical member; and a drive section vibrating the optical device, in which an expression (1) is satisfied: | 10-03-2013 |
20130258294 | ILLUMINATION DEVICE AND DISPLAY UNIT - An illumination device includes: a light source section including a laser light source; a first uniformization optical member receiving light from the light source section; a second uniformization optical member receiving light from the first uniformization optical member; an optical device disposed on an optical path of outgoing light from the light source section; and a drive section vibrating the optical device. | 10-03-2013 |
20130286356 | DISPLAY UNIT AND ILLUMINATION DEVICE - An illumination device includes a laser light source, and a polarization control device configured to control a polarization state of laser light emitted thereon from the laser light source, and to output light having at least two different polarization states. | 10-31-2013 |
20140104577 | DISPLAY APPARATUS - Provided is a display apparatus including: a first display unit including a first screen on which a first image is imaged and that is capable of displaying the first image in a first direction and a first optical member capable of reflecting and displaying the first image in at least one second direction crossing the first direction; a second display unit that includes a second screen on which a second image is imaged and that is capable of displaying the second image in the second direction; and a light source configured to project first image light forming the first image onto the first screen and project second image light forming the second image onto the second screen. | 04-17-2014 |
20150055100 | ILLUMINATION DEVICE AND DISPLAY UNIT - An optical member is provided including a substrate, and a plurality of sub-regions two-dimensionally arranged on the substrate. Each of the sub-regions includes a plurality of unit lenses. The sub-regions and unit lenses are configured to spatially divide an incident light flux into a plurality of light fluxes according to the arrangement of the sub-regions while partially superimposing said divided light fluxes onto one another. Also, each of the sub-regions includes a plurality of the unit lenses arranged in a two-dimensional array, and each of the unit lenses has shape anisotropy. | 02-26-2015 |
20150277132 | SPATIAL IMAGE DISPLAY APPARATUS AND SPATIAL IMAGE DISPLAY METHOD - A spatial image display apparatus includes: a display section including a plurality of pixels disposed in a two-dimensional array, the plurality of pixels configured to radiate light rays at different radiation angles with each other respectively so as to form a planar image including a plurality of image points disposed in a two-dimensional array in a space apart from an array face of the plurality of pixels, wherein two or more predetermined number of pixels out of the plurality of pixels radiate the predetermined number of light rays so as to intersect to form one of the image points, and an interval of two adjacent light rays out of the predetermined number of light rays having passed one of the image points is equal to or less than a predetermined observation interval at a predetermined observation position. | 10-01-2015 |
20150277133 | SPATIAL IMAGE DISPLAY APPARATUS - An spatial image display apparatus includes: a first optical plate that transmits an incident light beam such that transmission gain reaches a peak greater than 1 in an optical axis direction of the incident light beam; and a second optical plate in which a plurality of optical elements are provided in a matrix formation, which regularly reflect a Z axis-direction component of a transmissive light beam of the first optical plate and are retroreflective with X and Y axes-direction components of the transmissive light beam, in a substrate having a normal line in a Z axial direction. | 10-01-2015 |
Patent application number | Description | Published |
20090206096 | THREE-PIECE SQUARE CAN AND METHOD OF MANUFACTURING THE SAME - The present invention provides a three-piece rectangular can which can overcome drawbacks (joint defect) of a can body joint portion of a three-piece can, and is of a new type which overcomes shortage of a can body strength which a two-piece can possesses, and exhibits excellent liquid leakage resistance, excellent can body strength and excellent heat radiation property or the like even when the can is used as a casing of a battery or electric equipment. For this end, the three-piece rectangular can of the present invention is formed such that a circular blank formed of an aluminum plate which forms an organic film on at least one surface thereof is formed into a bottomed circular can by deep drawing such that the organic film forms an inner side of the can, a cylindrical sleeve having no seam on a side surface thereof is formed by cutting a can bottom of the bottomed circular can, a rectangular can body portion having no seam on a side surface thereof is formed by deforming the cylindrical sleeve into a rectangular shape, a necking formed portion is formed by applying necking forming to opening portions at both ends of the rectangular can body, and a top lid and a bottom lid are mounted on the opening portions at both ends of the rectangular can body by double seaming by way of an organic compound. | 08-20-2009 |
20140212477 | HEMOGLOBIN-CONTAINING LIPOSOME AND METHOD FOR PRODUCING SAME - Provided are a hemoglobin-containing liposome having a specific membrane composition which secures high encapsulation efficiency of hemoglobin and exhibits excellent physical stability and in-vivo stability; and a method for producing the hemoglobin-containing liposome. A hemoglobin-containing liposome includes a hemoglobin solution as an internal fluid of a liposome, in which the membrane of the liposome is constituted of a lipid mixture of a phospholipid, cholesterol, and a saturated higher fatty acid, and a molar ratio of the cholesterol to the phospholipid (cholesterol/phospholipid) is 0.7 to 1.0, and the content of stearic acid in the lipid mixture is 25 to 30 mol %. Preferably, the membrane of the liposome further contains a polyethylene glycol-bound phospholipid in an amount of 0.8 mol % or more relative to the total amount of the lipids constituting the membrane, and the polyethylene glycol-bound phospholipid is bound onto the outer surface of the membrane. | 07-31-2014 |