| Patent application number | Description | Published |
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| 20090115884 | VARIABLE POWER OPTICAL SYSTEM, IMAGING LENS DEVICE AND DIGITAL APPARATUS - There is provided a zoom optical system having lens elements produced with less difficulty i.e. with substantially the same skill level as the conventional arrangement, with sufficient miniaturization. The zoom optical system includes a first lens group having a negative optical power, and a second lens group having a positive optical power in the order from the object side, the distance between the first lens group and the second lens group being decreased in zooming from a wide angle end to a telephoto end The first lens group is constituted of a negative lens element and a positive meniscus lens element. The second lens group is constituted of a biconvex positive lens element and a negative meniscus lens element. Assuming that D1 represents a thickness of the first lens group on the optical axis AX from a forwardmost lens surface to a rearmost lens surface, fw represents a composite focal length of the entirety of the optical system at the wide angle end, and f2 represents a composite focal length of the second lens group, the zoom optical system satisfies the following relation: | 05-07-2009 |
| 20090303612 | VARIABLE-POWER OPTICAL SYSTEM, IMAGE PICKUP DEVICE, AND DIGITAL APPARATUS - A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power, moving when the power of the variable-power optical system varies; and a third lens group with a positive or negative optical power. The first lens group includes two or more lenses including one positive lens and one negative lens which include at least two or more lenses made of a plastic material. The variable-power optical system satisfies the predetermined conditional expressions relating to is a focal length of the first lens, a focal length of the second lens, a composite focal length of the total optical system, and an image-forming magnification of the second lens group at a telephoto end. | 12-10-2009 |
| 20090310225 | Variable power optical system, imaging lens system and digital apparatus - Provided is a microminiaturized zoom optical system capable of sufficiently correcting aberration. The zoom optical system ( | 12-17-2009 |
| 20100033834 | VARIABLE-POWER OPTICAL SYSTEM, IMAGE PICKUP DEVICE, AND DIGITAL APPARATUS - A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; and a third lens group with a negative optical power, where an interval between the first lens group and the second lens group decreases when a power of the variable-power optical system varies from a wide-angle end to a telephoto end. The first lens group comprises a negative lens and a positive lens. The second lens group consists of a positive lens and a negative lens, and includes at least one aspheric surface. The variable-power optical system satisfies the predetermined conditional expressions. | 02-11-2010 |
| 20100045808 | VARIABLE-POWER OPTICAL SYSTEM, IMAGE PICKUP DEVICE, AND DIGITAL APPARATUS - A variable-power optical system includes, in order from an object side thereof: a first lens group with a negative optical power; a second lens group with a positive optical power; a third lens group with a negative optical power; and a fourth lens group with a positive optical power. An interval between the first lens group and the second lens group decreases when a power of the variable-power optical system varies from a wide-angle end to a telephoto end. The second lens group includes at least one aspheric surface. The variable-power optical system satisfies the predetermined conditional expressions. | 02-25-2010 |
| 20100046096 | IMAGE PICKUP LENS, IMAGE PICKUP APPARATUS AND MOBILE TERMINAL - Provided is an imaging lens using a wafer scale lens which can easily be produced in a mass production. The entire optical length can be reduced without increasing a lens substrate or a lens formed on the substrate or without using a diffracting plane. The aberration can be preferably corrected. The imaging lens forms a first lens having a positive refractive power and Abbe number v1 on the object side and a second lens having a negative refractive power and Abbe number v2 on the image side of the first lens substrate. The difference between the Abbe number v1 and the Abbe number (v1−v2) is set to be a value greater than 10. | 02-25-2010 |
| 20100091387 | IMAGING LENS, IMAGING DEVICE, PORTABLE TERMINAL, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens (LN) includes one or two lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes a plane-parallel lens substrate (LS) and a lens (L) formed of different materials. In the imaging lens (LN), a first lens block (BK | 04-15-2010 |
| 20100134903 | IMAGING LENS, IMAGING DEVICE, PORTABLE TERMINAL, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens (LN) includes at least one lens block (BK), and an aperture stop (ape). The lens block (BK) includes parallel flat lens substrates (LS) formed of different materials, and a lens (L). In the imaging lens (LN), a first lens block (BK | 06-03-2010 |
| 20100134905 | IMAGING LENS, IMAGING DEVICE, PORTABLE TERMINAL, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens (LN) includes one or two lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes a plane-parallel lens substrate (LS) and a lens (L) formed of different materials. In the imaging lens (LN), a first lens block (BK | 06-03-2010 |
| 20100166413 | IMAGING LENS, IMAGING DEVICE, PORTABLE TERMINAL, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens (LN) includes at least one lens block (BK), and an aperture stop (ape). The lens block (BK) includes parallel flat lens substrates (LS) formed of different materials, and a lens (L). In the imaging lens (LN), a first lens block (BK | 07-01-2010 |
| 20100188555 | IMAGING LENS, IMAGING DEVICE, AND MOBILE TERMINAL - Provided are a wafer scale lens, which is so short in an optical total length with respect to an image height that it can correct an aberration satisfactory, and an optical system including the wafer scale lens and having a thin lens element on the side closest to the image. The optical system includes a first lens having a positive refractive power relative to an object, and a second lens arranged on the side of the image of the first lens and having a recessed shape on the side of the object. At least one lens is arranged on the side of the second lens. When that one of the lenses arranged on the side of the image of the second lens, which is arranged on the side closest to the image, is an i-th lens (i>3), this i-th lens includes an i-th lens flat plate and is formed on the object side of the i-th lens flat plate but has a refractive index different from that of the i-th lens flat plate, and a lens element having a convex shape on the object side where the main light ray of the maximum image height passes. Moreover, the ratio between the optical axial distance (or the lens distance) between a (i−1)-th lens and the i-th lens and the optical axis distance (or the optical total length) from the object side face of the first lens to the image face is 0.01 to 0.15. | 07-29-2010 |
| 20100188556 | IMAGING LENS, IMAGING DEVICE, AND MOBILE TERMINAL - The present invention provides a wafer-scale lens in which a total optical length is short in comparison with an image height and astigmatism and other aberrations can be well corrected, and an optical system in which a lens element closest to the object side is thin in thickness. The optical system includes a first lens that is disposed closest to the object side and is positive in refractive power; a second lens that is disposed on the image side and has a concave surface on the object side; an i-th lens, (i≧3), that is disposed closest to the image side in lenses disposed on the image side and includes an i-th lens plate and a lens element which is formed on at least either the object side surface or the image side surface of the i-th lens plate, and has a refraction index different from the i-th lens plate and positive or negative refractive power; and satisfies 0.9>Y | 07-29-2010 |
| 20100194853 | WIDE-ANGLE OPTICAL SYSTEM, IMAGE PICKUP LENS DEVICE, MONITOR CAMERA, AND DIGITAL APPARATUS - A wide-angle optical system comprises a front lens group ( | 08-05-2010 |
| 20100259632 | WIDE ANGLE OPTICAL SYSTEM, IMAGING LENS DEVICE, MONITOR CAMERA, AND DIGITAL APPARATUS - Provided are a wide angle optical system having better optical performance, low in cost, and compact in size, an imaging lens device having the wide angle optical system, a monitor camera, and a digital apparatus. The wide angle optical system ( | 10-14-2010 |
| 20100295985 | VARIABLE MAGNIFICATION OPTICAL SYSTEM, IMAGE PICKUP DEVICE AND DIGITAL APPARATUS - A variable magnification optical system of the present invention and an image pickup device and a digital apparatus including this are provided with a four-component optical system of negative-negative-positive-negative arrangement, wherein a first lens group thereof includes only one negative lens as a lens having an optical power, and a third lens group thereof satisfies a conditional expression of 1.4<β3t/β3w<4 when β3t and β3w respectively denote image magnifications of the third lens group at a telephoto end and at a wide-angle end. The variable magnification optical system, the image pickup device and the digital apparatus having such a construction can be further downsized. | 11-25-2010 |
| 20100315724 | IMAGE PICKUP LENS, IMAGE PICKUP APPARATUS, MOBILE TERMINAL, AND METHOD FOR MANUFACTURING IMAGE PICKUP LENS - Disclosed is an image pickup lens (LN) including at least three lens blocks (BK) each equipped with a lens substrate (LS) being a parallel flat plate, and a lens or lenses (L) having a positive or negative power and being connected to at least one of an object-side surface and an image-side surface of the lens substrate (LS). In the image pickup lens (LN), a first lens block (BK | 12-16-2010 |
| 20100321554 | IMAGING LENS, IMAGE PICKUP DEVICE AND PORTABLE TERMINAL - An imaging lens (LN) of an imaging device (ID) is composed of an aperture stop (ST) and a lens unit (LU) having positive power. Even when the object side surface of the lens unit (LU) has a shape convexed to the side of the object, and a lens whose image side surface is concaved to the image side is used, excellent aberration performance with a short optical total length, a small sensor incidence angle and a small distortion are achieved at low cost. | 12-23-2010 |
| 20100321794 | IMAGING LENS, IMAGING DEVICE, PORTABLE TERMINAL, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens (LN) includes at least three lens blocks (BK), and an aperture stop (ape). The lens block (BK) includes parallel flat lens substrates (LS) formed of different materials, and a lens (L). In the imaging lens (LN), the object side lens surface of a first lens (L | 12-23-2010 |
| 20110001865 | IMAGING LENS, IMAGING DEVICE, PORTABLE TERMINAL, AND METHOD FOR MANUFACTURING IMAGING LENS - An imaging lens (LN) includes at least one lens block (BK), and an aperture stop (ape). The lens block (BK) includes a plane-parallel lens substrate (LS) and a lens (L) formed of different materials. In the imaging lens (LN), a first lens block (BK | 01-06-2011 |
| 20110013070 | LENS UNIT, IMAGE CAPTURING LENS, IMAGE CAPTURING DEVICE AND PORTABLE TERMINAL - A lens unit LU in which a lens portion L is formed at least on either a light-receiving surface or a light-emitting surface of a lens holding plate P, wherein a difference in coefficients of linear expansion of the lens holding plate P and the lens portion L is used to suppress mis-focusing by causing changes in a paraxial image point position of the entire lens system due to changes in the surface shape of the lens portion L which accompany temperature changes, and changes in the paraxial image point position of the entire lens system due to changes in the refraction index to cancel each other out. Furthermore, deterioration of performance of the entire lens system caused by rising temperature is suppressed by satisfying a predetermined conditional expression. | 01-20-2011 |
| 20110043623 | IMAGING DEVICE - A mode control section controls an image generation section to operate in a normal mode or a polarized light component reduction mode on the basis of a mode signal from a mode signal generation section to cause the image generation section to form a normal image or a polarized light component reduced image. When the possibility of occurrence of stray light is high, the imaging device automatically switches to the polarized light component reduction mode and when the possibility of occurrence of the stray light is low, the imaging device automatically switches to the normal mode. The polarized light component reduced image is obtained by reducing or eliminating stray light having a polarized light component, and the normal image is formed without reducing the stray light. Thus, the imaging device is capable of automatically switching between the two modes. | 02-24-2011 |
