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Konica Minolta Opto, Inc. Patents
Assignee:
Konica Minolta Opto, Inc.
Address:
Hachioji-shi, JP
No. of patents:
518
Patents:


1 2 3 4 5 6 7 8 9 10 11










Patent Number Title Of Patent Date Issued
7551539 Optical element, aberration correcting element, light converging element, objective optical syst June 23, 2009
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
7551373 Image pickup optical system June 23, 2009
An image pickup optical system for forming a light flux from an object into an optical image on an image pickup element, is provided with, in order from an object side thereof: a first lens with a negative power in a meniscus shape including a convex surface facing the object side; a
7550182 Polarizing plate and display device June 23, 2009
A polarization plate comprising a polarizer and polarizing plate protective films A and B provided on both surfaces of the polarizer, wherein (i) a thickness of each of the polarizing plate protective films A and B is 30 to 60 .mu.m; (ii) in-plate retardation value Ro of the polarizi
7549809 Image-taking lens system and digital apparatus using the same June 23, 2009
An aperture stop, a first lens having a positive power, a second lens having a negative power, a third lens having a positive power, and a fourth lens whose concave face is directed toward the image surface side and having a meniscus shape are disposed in order from the object side.
7547867 Positioning device and positiioning method June 16, 2009
A positioning method for positioning a movable member so as to maximize a detection output of a position detecting means whose detection output varies corresponding to positions of the movable member, comprising: performing a wobbling control when the detection output is small, in wh
7545724 Optical pickup apparatus, optical element for optical pickup apparatus and producing method of o June 9, 2009
The present invention relates to an optical element for an optical pickup device, wherein the optical element is produced by molding a resin material, in which inorganic particles having a diameter of not more than 30 nm are dispersed in a plastic resin, an optical pickup device using
7542637 Coupling optical system, optical element and optical pickup apparatus June 2, 2009
The present invention relates to a coupling optical system, an optical element, and an optical pickup apparatus. A coupling optical system is provided for use in an optical pickup apparatus and is arranged between a light source and an objective lens of the optical pickup apparatus. The
7541302 Optical glass and optical element June 2, 2009
Optical glass which is suitable for press molding does not substantially contain a compound of lead or arsenic, and has intermediate refractive index, low dispersion properties, low Tg and small density. Concretely, the optical glass includes the glass components of SiO.sub.2: 20 to 45%,
7540646 Light guide element, light guide unit, backlight apparatus and light source apparatus June 2, 2009
The present invention provides a light guide element, a light guide unit, a backlight apparatus and a light source apparatus. The light guide element is provided for guiding a light flux from a light source into a light guide plate, and the light guide element includes: an incident s
7535659 Image pickup lens, image pickup apparatus and mobile terminal May 19, 2009
The present invention provides an image pickup lens for forming a light flux from a subject into an image on a photo-electric converter of a solid image pickup element, and the image pickup lens includes, in order from an object side thereof: and aperture stop; a first lens having a
7535626 Shape-variable optical element, optical device and image pickup apparatus May 19, 2009
A shape-variable optical element, which includes: a shape-variable section made up of an organic material that can be expanded and contracted by an electric field, in a direction of the electric field; and a pair of electrode layers to sandwich the shape-variable section, wherein amounts
7535509 Transparent member in a solid-state image pick-up apparatus supported through use of micro-lense May 19, 2009
A solid-state image pickup apparatus includes a light receiving pixel group having light receiving pixels to convert photoelectrically incident light and to be two-dimensionally arranged; a microlens array to be two-dimensionally arranged to correspond in position to the light receiv
7532418 Lens barrel and image pickup apparatus May 12, 2009
A lens barrel includes: a plurality of lens groups arranged on an optical axis; and at least one reflection surface arranged on the optical axis for bending the optical axis into a plurality of optical axis segments. Among the optical axis segments, at least two lens groups are arranged
7532408 Variable magnification optical system and image-taking apparatus May 12, 2009
A variable magnification optical system having 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 element having a positive optical power, in the optical a
7532382 Display element May 12, 2009
The present invention provides a display element including a layered body. The layered body includes a layered portion comprising a plurality of transparent thin films with different refractive indexes, and a plurality of electrodes which are adapted to apply an electric field to each of
7530697 Illumination optics and image projecting apparatus having thereof May 12, 2009
An illumination optics includes a plurality of light source sections for emiting light beams and a time sharing color separation device having a plurality of color filters. The color filters are rotationally moved so as to cross optical paths of the emitted light beams from the light
7529035 Zoom lens system and image pickup device May 5, 2009
A zoom lens system includes, in order from an object side: a first lens group having negative power, a second lens group having negative power, a third lens group having positive power, and, a fourth lens group having positive power. The position of the first lens group is fixed during
7525879 Objective optical element and optical pickup apparatus April 28, 2009
An objective optical element for use in an optical pickup apparatus first-third light sources emitting first-third light fluxes and a light converging optical system, includes a first optical path difference providing structure for providing an optical path difference which provides
7524068 Projection optical system April 28, 2009
A projection optical system that performs enlargement projection of an image on a display device surface formed of a plurality of pixels onto a screen surface, in which pixel shift by less than a pixel pitch is performed on the screen surface in a vertical direction, a horizontal dir
7522355 Lens unit and manufacturing method thereof April 21, 2009
In the case where a lens unit where two ore more transparent resin lenses are combined is constituted, at least one transparent resin lens contains infrared absorbent. When the lens unit is assembled, an infrared laser is emitted to a joined portion between the transparent resin lens and
7518803 Dichroic prism, and prism unit and image projection apparatus employing same April 14, 2009
A dichroic film formed on a prism base member contains 10% by volume or more of a high-thermal-conductivity substance having a thermal conductivity of 20 W/mK or more at a temperature of 300 K. Preferably, the dichroic film is composed of high- and low-refractive-index layers laid al
7515523 Optical system for optical pickup apparatus, optical pickup apparatus, optical information recor April 7, 2009
An optical system utilized in an optical pickup apparatus comprising: an aberration-correcting element made of a plastic material; and a converging lens to converge a light flux emitted from the aberration-correcting element, the converging lens being made of a plastic material, wher
7512056 Objective lens for optical pick-up devices, optical pick-up devices, and optical information rec March 31, 2009
The present invention provides an objective lens for optical pick-up devices in which the amount of change in the astigmatic aberration is small when there is a temperature distribution that is not circularly symmetric with respect to the optical axis within an objective lens constru
7511899 Image pickup optical system and digital apparatus using the same March 31, 2009
An image pickup optical system comprising three lenses for forming an image on a solid imaging element, wherein the comprised lenses are, from an object side, a positive first lens (FL1) whose convex surface is directed toward the object side, an aperture stop (ST), a negative second
7511880 Semiconductor light source module March 31, 2009
The present invention provides a semiconductor light source module including: a semiconductor light source for emitting a light flux with a predefined wavelength; a SHG element for converting an incident light flux entering onto an incident end surface of the SHG element into an outg
7505218 Lens barrel and imaging apparatus March 17, 2009
In a lens barrel in which an imaging optical system can be retracted and protruded, a retaining member to retain an optical element nearest to the imaging element among the imaging optical system is provided, the optical element moves in a receding direction from the imaging element when
7503661 Projection optical system March 17, 2009
In a projection optical system for obliquely performing enlargement projection of an image formed on a display device surface onto a screen surface, a plurality of reflective surfaces are provided, at least one of which is a curved reflective surface having an optical power. Letting the
7499618 Optical element March 3, 2009
An optical element for controlling light propagation including: transparent material; and inorganic fine particles dispersed in the transparent material, wherein the transparent material and the inorganic fine particles meet at least one of following a) and b): a) a rate of change of
7499229 Fixing method, optical component and pickup manufactured by the fixing method March 3, 2009
Objective lens 20 is placed above the bobbin 40 at a position opposite to the light emitting end of the light guiding member, and the fixing portions 31 provided appropriately between the objective lens 20 and the lens support 41 are hardened in a short time because of being exposed to
7498550 Optical pickup apparatus which records and/or reproduces information using different types of op March 3, 2009
An optical pickup apparatus for recording and/or reproducing information for an optical information recording medium, comprising a light converging optical system including a coupling lens and an objective lens, wherein a first diffraction structure is installed on the objective lens
7495720 Polarizing plate and liquid crystal display device February 24, 2009
A polarizing plate comprises a polarizing element; and a hydrophilic polymer film adhered on the polarizing element and having an in-plane orientation. The transmittance of the polarizing plate as a single unit for light having a wavelength of 590 nm is 40% or more under an environme
7486328 Picture-taking lens, image pick-up unit and hand-held device February 3, 2009
A picture-taking lens for forming an image of an object image on a solid picture-taking element, comprising in order from the object side: a first lens having a positive refractive power and directing a convex surface toward the object side; an aperture stop, a second lens having a posit
7486327 Image-taking optical system February 3, 2009
There is provided an image-taking optical system to form an image in a solid-state image pickup element. The image-taking optical system comprises an aperture stop, a positive first lens having a convex surface on an object side, a positive second lens having a convex surface on an i
7483225 Taking optical system January 27, 2009
A taking optical system for forming an optical image of an object on the light-receiving surface of an image sensor has at least one optical prism that has an entrance surface, at least three reflective surfaces each curved, and an exit surface, and that receives rays from the object sid
7481587 Optical element, mold for the optical element, method for manufacturing the optical element and January 27, 2009
An optical element used in a bidirectional optical communication module used for bidirectional optical fiber communication by a wavelength multiplex system, comprising a diffraction grating of binary structure prepared by molding, wherein a taper is formed at a portion of the diffrac
7479312 Retardation film, polarizing plate, and liquid crystal display device January 20, 2009
A retardation film which contains a cellulose derivative and a plasticizer wherein the thickness of the film is 10 to 50 .mu.m, Ro in Equation (i) is in the range of 30 to 100 nm, Rt in Equation (ii) is in the range of 100 to 300 nm, and S in Equation (iii) is 0.0002 or more but not
7477456 Zoom lens January 13, 2009
A zoom lens includes in the order from an object a first lens group having a negative refractive power, including at least one negative lens and one positive lens, wherein a negative plastic lens having one or more aspherical surfaces is arranged on a side closest to the object; a second
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
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