| Patent Number |
Title Of Patent |
Date Issued |
| 7474479 |
Image pickup lens system |
January 6, 2009 |
| An image pickup lens system has a four-lens configuration which forms an image on a solid-state image pickup device. The image pickup lens system includes, from an object side, a positive first lens, an aperture stop, a positive second lens, a negative third lens whose concave surface is |
| 7474478 |
Image pickup lens, image pickup apparatus and mobile terminal |
January 6, 2009 |
| The present invention provides an image pickup lens for forming a light flux from a subject into an image on an image pickup element, and the image pickup lens includes, in order from an object side thereof: an aperture stop; a first lens having a positive refractive power; a second |
| 7471360 |
Liquid crystal display device |
December 30, 2008 |
| A liquid crystal display device comprising a liquid crystal display in which polarizing plates A and B are provided so as to be held between a vertical orientation mode crystal cell and the corresponding liquid crystal cell, wherein the polarizing layer A comprises the polarizing pla |
| 7468849 |
Object lens unit and optical pickup device employing the unit |
December 23, 2008 |
| An object lens unit for an optical pickup device is disclosed. The object lens unit includes a first optical element facing an optical information recording medium; a second optical element positioned on a light source side of the first optical element; and a frame in which the first opt |
| 7466911 |
Image taking lens |
December 16, 2008 |
| An image taking lens forming an optical image on an solid-state image pickup element according to the present invention, is provided with, in order from an object side thereof: a first lens with a positive power; a second lens with a negative power; and a third lens with a negative p |
| 7466500 |
Lens unit and image pickup apparatus |
December 16, 2008 |
| A lens unit according to the present invention is capable of varying power for forming an image onto an image pickup element. The lens unit includes: a plurality of lens groups, a diaphragm, and a shutter. In the plurality of lens groups, a distance between a k-th lens group counting |
| 7466377 |
Retardation film, manufacturing method thereof, polarizing plate and liquid crystal display appa |
December 16, 2008 |
| A film bonded to a polarizer of a polarizing plate, has a surface A and a surface B opposite to the surface A; and a thickness of 10 .mu.m to 70 .mu.m; wherein a refractive index difference between the surface A and the surface B is 5.times.10.sup.-4 to 5.times.10.sup.-3. |
| 7463570 |
Multi-focus objective lens, optical pickup apparatus and optical information recording reproduci |
December 9, 2008 |
| A multi-focal objective lens for use in an optical pickup apparatus for recording and/or reproducing information using a first light flux with a wavelength .lamda..sub.1 on a first and second optical discs, includes a first optical surface including a first diffractive structure. The |
| 7463428 |
Lens barrel and photographing apparatus |
December 9, 2008 |
| A lens barrel includes a first and second movable frames provided coaxially on an optical axis of a lens, and telescopically moved in and out from a stationary main frame; a first support member engaged with the first movable frame as a first pivot orthogonal to the optical axis, and |
| 7460460 |
Objective optical system, optical pickup apparatus and optical information recording and reprodu |
December 2, 2008 |
| An objective optical system for use in an optical pickup apparatus for converging first and second parallel light fluxes includes: a first lens group having a phase structure; and a second lens group, wherein the first lens group and the second lens group are arranged in the objective |
| 7460459 |
Optical pickup apparatus, objective optical element and optical information recording and/or rep |
December 2, 2008 |
| An optical pickup apparatus comprises: a first light source for emitting a first light flux; a second light source for emitting a second light flux; a third light source for emitting a third light flux; and an objective optical element. The objective optical element comprises an optical |
| 7458737 |
Taking lens system |
December 2, 2008 |
| A taking lens system for forming an image on a solid-state image sensor has, from the object side thereof: an aperture stop, a first lens element having a positive optical power and convex to the object side, a second lens element having a positive optical power and convex to the ima |
| 7458704 |
Optical element and illuminating device |
December 2, 2008 |
| The present invention provides an optical element and an illuminating device. The optical element includes: an incident surface; and an emitting section formed on an opposite side to the incident surface. The emitting section includes a plurality of protrusions. When each of the plur |
| 7457224 |
Optical element having an anti-reflection film and optical pickup apparatus |
November 25, 2008 |
| An optical element to be arranged in an optical pickup apparatus for conducting information recording and/or reproducing and to converge laser light beams having a plurality of wavelengths including a wavelength of .lamda.1 onto information recording media, includes one or more of op |
| 7457044 |
Ultra wide angle imaging optical system, ultra wide angle imaging lens device, and image sensing |
November 25, 2008 |
| An ultra wide angle imaging optical system includes, in order from an object side, a first lens group, an aperture stop, and a second lens group. The first lens group includes, in order from the position closest to the object side, a negative meniscus lens element convex to the object |
| 7456546 |
Drive unit |
November 25, 2008 |
| A drive unit being characterized in that a movable object can be prevented from being tilted when the movable object is stopped using a restricting member. The drive unit comprises a piezoelectric element; a rod provided at an end of the piezoelectric element; a movable object, which is |
| 7453786 |
Optical pickup apparatus, objective optical element and optical information recording and/or rep |
November 18, 2008 |
| An optical pickup apparatus comprises: a first light source; a second light source; a third light source; and an objective optical element. The objective optical element comprises at least two areas comprising first and second optical path difference providing structures. A third light |
| 7450286 |
Laser projection apparatus |
November 11, 2008 |
| A laser projection apparatus includes: laser devices; incident optical systems, each of which is supplied with light beam from the laser device; a scanning device for two-dimensionally scanning the light beam; and a projection optical system for projecting the light beam from the scannin |
| 7450285 |
Laser projection apparatus |
November 11, 2008 |
| A laser projection apparatus PJ includes: laser devices; incident optical systems, each of which is supplied with light beam from the laser device; a scanning device for two-dimensionally scanning the light beam; and a projection optical system for projecting the light beam from the scan |
| 7445821 |
Cellulose ester film and its manufacturing method, optical film, polarizing plate and liquid cry |
November 4, 2008 |
| Disclosed is a cellulose ester film containing cellulose ester and microparticles having an average primary particle diameter of from 0.1 to 1.0 .mu.m, wherein a relative standard deviation of a primary particle diameter of the microparticles is from 1 to 20%, and wherein the cellulo |
| 7443599 |
Magnification varying optical system and image taking apparatus |
October 28, 2008 |
| A magnification varying optical system that directs light from an object to an image sensor includes in order from the object side: a first lens unit having negative optical power and including an optical axis changing element that changes the optical axis; a second lens unit having posi |
| 7443445 |
Lens unit and image pickup apparatus |
October 28, 2008 |
| A lens unit of the present invention has a mounting cradle, a lens frame holding portion fixed to a mounting cradle in an optical axis direction, a lens frame which is held to the lens frame holding portion to be capable of moving to the optical axis direction, and a lens group fixed |
| 7427198 |
Optical component molding apparatus |
September 23, 2008 |
| An apparatus for molding optical components of a small size and high precision is provided with good transferability and a reduced production cycle. This apparatus includes a plurality of runners arranged in a pattern allowing multi-cavity molding for molding plastic lenses each havi |
| 7426170 |
Objective lens and optical pickup apparatus for reproducing and/or recording information for at |
September 16, 2008 |
| An objective lens according to the present invention is provided for use in an optical pickup apparatus at least reproducing and/or recording information using a light flux with a wavelength .lamda.1 emitted by a first light source for a first optical disc and reproducing and/or reco |
| 7420609 |
Image pick-up lens, image pick-up unit, and mobile terminal provided with this image pick-up uni |
September 2, 2008 |
| An image pickup lens includes in order from an object side of the image pickup lens: a first lens having positive refractive power whose convex surface faces the object side of the image pickup lens; an aperture stop; a meniscus shaped second lens having positive refractive power whose |
| 7417935 |
Optical system having an objective system and an optical aberration correcting element |
August 26, 2008 |
| An optical system for use in an optical pickup device for recording and/or reproducing information on an optical recording media, the optical system having an optical axis and comprising: an objective system for converging a light beam emitted from a light source on the optical recording |
| 7417801 |
Image pickup optical system and image pickup apparatus |
August 26, 2008 |
| An image pickup optical system according to the present invention includes: a first lens group having a positive power; a second lens group having a negative power; a third lens group having a positive power; and a fourth lens group having a positive power which consists of a front g |
| 7415842 |
Optical glass element and manufacturing method thereof |
August 26, 2008 |
| The present invention relates to a manufacturing method for an optical glass element, in which molten glass 9 is pressed between a lower mold 1 and an upper mold 8, and the pressing process is carried out while maintaining a space 10 between a border area (5, 6) of a molding face 2 b |
| 7411883 |
Optical pickup device, optical information recording and reproducing apparatus, expander lens, c |
August 12, 2008 |
| An optical pickup apparatus includes first and second light sources; an objective lens; a spherical aberration correcting optical unit; and a chromatic aberration correcting optical element which includes a diffractive surface on at least one optical surface of the chromatic aberrati |
| 7411737 |
Projection optical system |
August 12, 2008 |
| A projection optical system for projecting, while enlarging, an image formed on an image formation surface onto an image projection surface from an oblique direction relative thereto has at least three optically powered reflective surfaces and a refractive lens surface having a non-r |
| 7397616 |
Optical communication module and optical element for optical communication module |
July 8, 2008 |
| An optical communication module includes a first light-receiving element with a receiving surface in which a light flux with a wavelength .lamda.1 emitted from an end surface of an optical fiber enters; a light-emitting element for emitting a light flux with a wavelength .lamda.2; and a |
| 7396191 |
Cutting tool and cutting machine |
July 8, 2008 |
| A cutting tool is constituted by plural faces and a tip portion structured with edges of the plural faces, wherein groove is formed on at least one of the plural faces. The groove is grid pattern and a dent portion is formed at some intersections of the grid pattern. Furthermore, a space |
| 7395679 |
Method of manufacturing glass substrate for information recording medium |
July 8, 2008 |
| Molten glass is press-molded by a metallic die in which a cylindrical body is provided in a vertically standing manner at a central part of a bottom surface of a bottomed hole and a molding surface corresponding to a chamfering shape of an outer peripheral edge surface of a glass substra |
| 7388716 |
Variable magnification optical system and imaging device |
June 17, 2008 |
| A variable magnification optical system for forming an optical image of an object onto a light acceptance surface of an image sensor, has in order from an object side: a first lens group having negative optical power; a second lens group having positive optical power; and a third lens gr |
| 7388308 |
Spindle device |
June 17, 2008 |
| A built-in motor type spindle device comprising a housing and a spindle, wherein said spindle device further includes static pressure bearings which support the spindle so that the spindle can rotate freely relatively to the housing, two lines of magnetic field generating members whi |
| 7385760 |
Optical element and optical pickup device used therewith |
June 10, 2008 |
| An optical element for reflecting light has a substrate and a thin film formed on the substrate. The thin film reflects light in a predetermined reflection wavelength band so that the thin film adjusts a difference in phase differences between a P-polarized light component and S-polarize |
| 7382546 |
Zoom optical system, imaging lens device, and digital apparatus |
June 3, 2008 |
| A reflecting prism (PR1) and a reflecting prism (PR2) each adapted to bend an incident ray at a predetermined angle for reflection are arranged in such a manner that an incident surface of the reflecting prism disposed on a side of a subject on an optical path and the exit surface of the |
| 7379411 |
Beam shaping device |
May 27, 2008 |
| In a beam shaping device for converting the laser light emitted from a semiconductor laser light source from an elliptic beam to a circular beam, the light-entrance-side and light-exit-side surfaces of the beam shaping device both have a curvature only in the minor-axis direction of |
| 7379250 |
Variable magnification optical system and image-taking apparatus |
May 27, 2008 |
| A variable magnification optical system including at least: a first lens group having a negative optical power, a second lens group having a positive optical power, a third lens group having a negative optical power, and a fourth lens group having a positive optical power moves the s |
| 7375906 |
Wide-angle lens system and image-taking device |
May 20, 2008 |
| A wide-angle lens system has, from the object side thereof: a first lens element having a negative optical power and having a meniscus shape convex to the object side; a second lens element having a biconcave shape; a third lens element having a biconvex shape; and a fourth lens elem |
| 7372798 |
Optical element and optical pickup device |
May 13, 2008 |
| An optical element has a dichroic film held between transparent materials which transmits one of first light in a wavelength range of 390 to 425 nm and second light in a wavelength range of 630 to 820 nm and reflects the other light, and a first, a second, a third and a fourth surfaces. |
| 7369481 |
Optical element, aberration correcting element, light converging element, objective optical syst |
May 6, 2008 |
| An optical system for use in an optical pickup apparatus comprises a first optical surface having a superposition type diffractive structure including a plurality of ring-shaped zones which are formed concentrically around an optical axis, wherein each ring-shaped zone is composed of |
| 7369480 |
Optical pickup device and optical element |
May 6, 2008 |
| An optical pickup device includes a light source emitting a light beam having a wavelength within a range of 390 nm to 420 nm and an optical element to perform recording and/or reproducing of information of an optical disk having a protective substrate thickness d.sub.1 mm using the |
| 7369333 |
Lens unit and image capturing apparatus |
May 6, 2008 |
| A lens unit for focusing light onto an image pickup device, including: a frame body; a first lens group having a first optical axis and being movable between an operating position and a storing position; a bending member for bending the light along the first optical axis to a perpend |
| 7369322 |
Imaging optical system and image pickup apparatus |
May 6, 2008 |
| An imaging optical system which is a small-sized and wide angle of view a zoom lens, and whose aberration is finely corrected, is provided. In the imaging optical system, it has the first lens group of negative power, the second lens group of positive power, the third lens group of negat |
| 7367102 |
Method for mounting object and spindle device |
May 6, 2008 |
| A spindle device to mount and rotate an object, including: a housing; a main shaft supported by the housing rotatably to the housing wherein the main shaft includes a through hole which goes through from an end to the other end thereof, and an opening of the through hole forms a mounting |
| 7366395 |
Manufacturing method of die for optical element molding |
April 29, 2008 |
| The invention relates to a manufacturing method of a die for molding an optical element. The manufacturing method comprising: forming the first film layer of an amorphous alloy having a super-cooling liquid phase onto a master transfer surface of a master die for molding a molding transf |
| 7365911 |
Zoom lens and image pickup apparatus |
April 29, 2008 |
| A zoom lens including 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 |
| 7363729 |
Manufacturing method of optical film, and optical film |
April 29, 2008 |
| A washing process to sufficiently remove contaminants attached on the surface of an optical film is proposed. Specifically, disclosed is a method of manufacturing an optical film, wherein the method possesses the steps of spraying onto at least one surface of a transparent film a sol |
| 7362522 |
Lens barrel |
April 22, 2008 |
| A lens barrel, including plural lens units for zooming and focusing a subject, an actuating section for moving at least one of the plural lens units, and a housing section for house the plural lens units and the actuating section, wherein the actuating section includes, a vibrating m |
