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


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Patent Number Title Of Patent Date Issued
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
7360906 Projection optical system unit and projection-type image display apparatus using the same April 22, 2008
A projection optical system unit has a lower pedestal. The lower pedestal has first and second tubular portions opened to each other. An image formation device holding plate for a DMD is mounted on the first tubular portion at a side where one opening is formed. A mirror holder for a
7359307 Catadioptric objective system and objective system April 15, 2008
A catadioptric objective system used for storage and/or reproduction of information by use of an optical near field. The catadioptric objective system is composed of a catadioptric objective lens and a light transmitting plate. The lens has a first surface and a second surface. The f
7359017 Optical compensation film, polarizing plate, displaying apparatus, method for producing optical April 15, 2008
A method for producing a roll of an optical compensation film, in the effective width of which an angle of the slow axis in the film face with the width direction of the film is within the range of .+-.1.degree. and an angle of the fast axis in the film face with the length direction of
7355802 Driving device, lens barrel and imaging apparatus April 8, 2008
A driving device including: a vibrating body composed of a plurality of electric elements which are arranged to intersect in a predetermined angle, to vibrate based on a high frequency signal; a driven member having disk shape to be rotated by vibration of the vibrating body; a male
7354633 Retardation film, and polarizing plate and display device using the same April 8, 2008
A retardation film containing a polyalcohol ester, a polycarboxylic acid ester, and a cellulose ester, wherein a total acylation degree of the cellulose ester is in the range of 2.4-2.8; and a Mw/Mn value of the cellulose ester is in the range of 1.4-3.0, provided that Mw represents a
7352518 Objective optical system and optical pickup apparatus April 1, 2008
An objective optical system according to the present invention is provided for use in an optical pickup apparatus for recording or reproducing information on an information recording surface of a first optical information recording medium using a first light flux emitted from a first
7352517 Optical pickup apparatus April 1, 2008
An optical pickup apparatus for conducting at least recording or reproducing of information on two types of optical information recording media having protective substrates with different thicknesses, includes: a first light source for emitting a first light flux with a wavelength .l
7345983 Optical pick-up device and optical information recording reproducing apparatus March 18, 2008
An optical pickup apparatus includes: first-third light sources; a packaged multiple light source unit for packaging emitting points of at least two of the first-third light sources in one housing; an objective optical system for converging light fluxes emitted by light sources onto
7345725 Optical compensation film, polarizing plate and liquid crystal display March 18, 2008
An optical compensation film wherein: (i) molecules of a liquid crystalline compound are oriented in a manner that an average tilt angle of the compounds is not more than 4 degrees; (ii) the orientation is fixed; (iii) Ro(.lamda.) values are: at wavelength 589 nm: 40-130 nm; at 600 n
7336426 Image pickup optical system and image pickup apparatus February 26, 2008
An image pickup optical system according to the present invention is provided for forming a light flux from an object into an optical image on an image pickup element. The image pickup optical system includes: a first lens group having a positive power; a second lens group having a n
7333276 Optical element and lighting device provided therewith February 19, 2008
An optical element that condenses light emitted from a light source has: an entrance surface where the light enters; an exit surface from which the light entering inside via the entrance surface; and a reflection surface that directs, to the exit surface by total reflection, part of
7326902 Image pickup device for minimizing image degradation from stray light flux entering its structur February 5, 2008
An image pickup device includes an optical member; a semiconductor image pickup element having a photoelectric converter for photoelectrically converting a light flux converged by the optical member into electric signal and for storing the electric signal thereon, and an analog circuit
7324291 Retractable type lens barrel January 29, 2008
A lens barrel for zooming in the photographing region and retraction to the non-photographing region, equipped with a stationary barrel having a cam groove on the inner circumferential surface thereof, a cam barrel having a cam pin which is engaged with the cam groove, provided on the
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