Matches 1 - 50 out of 283 1 2 3 4 5 6 >
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7453788 Optical head, optical information recording/reproducing apparatus, computer, video recording/reproducing apparatus, video reproducing apparatus, server and car navigation system  
An optical head is provided that increases the light utilization efficiency and that can be adapted to high-speed recording and double-layer disks. A beam-shaping lens that shapes an elliptical...
7446951 Imaging system, in particular a projection objective of a microlithographic projection exposure apparatus  
Imaging systems, in particular a projection objectives of a microlithographic projection exposure apparatus, are provided. The imaging systems can have an optical axis and produce an image field...
7446950 Method of manufacturing a molded article, manufacturing device and objective lens for optical pickup  
A method of manufacturing an optical element, such as an objective lens, by heat-softening optical glass and press molding it with high precision in a pressing mold. The method comprises...
7440382 Objective optical element with multiple diffractive surfaces and optical pickup device  
An objective optical element for use in an optical pickup apparatus comprises a first optical surface including a first diffractive structure which comprises a plurality of concentric ring-shaped...
7428113 Device for reading from and/or writing to optical recording media  
The present invention relates to a device for reading from and/or writing to optical recording media, having a light source for producing a scanning beam for scanning the optical recording medium,...
7423953 Optical module and optical recording and/or reproducing apparatus  
An optical module has a first light source which emits a first light beam from a first light emission point in a predetermined direction, a second light source which emits a second light beam from...
7414796 Objective lens design method, lens, and optical system, optical head, and optical disc apparatus using the same  
When the DVD provided with the DVD substrate 2 having thickness t 2 of 0.6 mm is installed in the optical disc apparatus, the light beam 4 having wavelength λ 1 =655 nm is used as luminous...
7411743 Multi-wavelength lens, and optical system, optical head and optical disc apparatus using the lens  
The multi-wavelength lens for condensing a plurality of kinds of monochromatic light by refraction is disclosed. The lens comprises a common use area for all monochromatic light on at least one...
7411742 Focusing lens for LED  
A focusing lens for an LED is provided. The focusing lens for an LED, which concentrates light emitted from the LED so as to have directionality parallel to an optic axis, comprises: a transparent...
7367682 Color image projection arrangement and method  
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be...
7362514 Imaging system, in particular a projection objective of a microlithographic projection exposure apparatus  
Imaging systems, in particular a projection objectives of a microlithographic projection exposure apparatus, are provided. The imaging systems can have an optical axis and produce an image field...
7355801 Image pickup lens assembly  
An image pickup lens assembly comprises three lens groups, from the object side to the image side: a first lens group, a second lens group, and a third lens group. The first lens group includes two...
7355798 Optical system for collimating elliptical light beam and optical device using the same  
An optical system ( 20 ) for efficiently collimating an elliptical light beam includes a light source ( 21 ), a collimator ( 22 ), and at least one prism ( 23,24 ). The light source is adapted for...
7352518 Objective optical system and optical pickup apparatus  
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...
7352517 Optical pickup apparatus  
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...
7349163 High-heat-dissipation lighting module  
There is provided a lighting module of the type having a solid-state light source, in particular a LED, a supporting plate, and a lens; the lens has a recess housing the light source; the lens is...
7345829 Objective lens  
Lens aberration in an objective lens for recording and reproducing optical information, which is composed of a molded aspherical single lens, is inhibited while at the same time good lens...
7336432 Optical pickup and optical disc device  
An optical pickup includes at least a laser light source emitting a laser beam, a collimator lens system including a plurality of lenses for collimating the light beam emitted from the laser light...
7336424 Glass optical element  
In a method of manufacturing a glass optical element by press-forming a glass material in a chamber by using a forming mold comprising upper and lower dies at least one of which is movable, where a...
7330420 Objective lens unit, optical pickup apparatus and optical information recording and reproducing apparatus  
An objective lens unit for use in an optical pickup apparatus, includes a first optical element arranged opposite to the optical information recording medium; a second optical element arranged at a...
7303290 Laser beam focusing arrangement and method  
A lightweight, compact image projection module, especially for mounting in a housing having a light-transmissive window, is operative for causing selected pixels in a raster pattern to be...
7290881 Opthalmologic apparatus  
There is provided an ophthalmologic apparatus that prevents ghost light from generating. In the ophthalmologic apparatus, on an optical path commonly used for an eye fundus illumination optical...
7274646 Object lens for an infinite-type optical pickup, optical pickup and optical information processing device  
As an object lens for an optical pickup, applied is a single-lens and both-side-convex configuration is applied. Further, specific conditional formulas are created with respect to a particular...
7272101 Objective lens, optical head and optical information recording/reproducing apparatus  
A light beam emitted from a light source is focused by an objective lens onto an information recording surface of an optical information recording medium. The objective lens has a substantially...
7253968 Optical pickup device, optical information recording and reproducing apparatus and objective lens  
An optical pickup device comprises a light source to emit a light flux having wavelength λ; an objective lens including at least two plastic lenses of a first plastic lens having positive...
7248420 Optical pickup lens device and information recording and reproducing device using the same  
An optical pickup lens device includes, in the order from the light source side, a collimating lens for converting a bundle of rays into parallel rays or predetermined convergent or divergent rays,...
7239459 Scanning device including plastic high-numerical aperture objective  
An optical scanning device for scanning an information layer ( 104 ) of an optical record carrier ( 102 ) includes a radiation source ( 110 ) for generating a radiation beam ( 108 ) and a high-NA...
7239458 Image pick-up lens system  
An image pick-up lens system includes an aperture stop ( 10 ), a biconvex first lens ( 20 ), a second lens ( 30 ) having a concave surface on an object side, and a third lens ( 40 ) having a...
7236313 Ring zonal phase correction lens and optical system and optical head device  
A ring zonal phase correction lens made of resin is provided with a refraction face structurally formed on at least one of a first lens face and a second lens face. The refraction face includes...
7227704 Diffractive optical element, objective lens module, optical pickup, and optical information recording and reproducing apparatus  
An objective lens module includes a light-converging lens that is coaxially disposed with respect to an optical axis of first laser light having a first wavelength, and a transmission-type...
7227702 Bi-convex solid immersion lens  
A bi-convex solid immersion lens is disclosed, having a top and bottom convex surfaces. The radius of curvature of the bottom surface is larger than that of the top surface. A conical sloped...
7224530 Image capturing device  
A scanning module for scanning a document is provided. The scanning module comprises: a chassis; a light source on the chassis for emitting a light ray onto the document; a plurality of reflectors...
7221521 Optical pickup lens device and information recording and reproducing device using the same  
An optical pickup lens device includes, in the order from the light source side, a collimating lens for converting a bundle of rays into parallel rays or predetermined convergent or divergent rays,...
7209301 Optical lens  
Optical elements are provided. An optical element is formed by injecting resin material into a mold through a gate in a first direction. The optical element includes a main body, a flange...
7190658 Optical element having a plurality of ring-shaped zones  
An optical element-for use in an optical pickup apparatus for converging a light flux onto an information recording plane of an optical information recording medium, is provided with an optical...
7187641 Objective lens and optical pick-up apparatus  
An objective lens has a first meniscus-shape lens including a first object-side surface having a positive reflective power; and a second meniscus-shape lens having a positive reflective power. The...
7167322 Beam shaping apparatus  
A beam shaping apparatus including an optical lens is provided. The optical lens includes a diverging surface and a cylindrical surface. The diverging surface expands the input laser beam into a...
7167317 Objective optical system employing grin lens  
Provided is an objective optical system employing a gradient index (GRIN) lens. A refractive index of the GRIN lens is changed in an axial direction and a direction perpendicular to the axial...
7164645 Optical system for optical pickup apparatus  
An optical system has an expander lens and an objective lens. The following formula is satisfied: W1 CM >W2 CM , where W1 CM is a coma aberration (λrms) of a converged light spot when an...
7164624 Optical scanning device  
An optical scanning device ( 1 ) for scanning an information layer ( 2 ) includes a radiation source ( 6 ) for supplying a radiation beam ( 14 ), a lens system ( 7 ) having an optical axis (OO′),...
7161744 Objective lens and optical pickup apparatus  
An objective lens for converging a monochromatic light flux having a specific wavelength in a range of 350 to 450 nm on an optical information recording medium while the objective lens is placed...
7149040 Scanning device including an objective lens formed of two materials  
An optical scanning device ( 1 ) for scanning an information layer ( 4 ) of an optical record carrier ( 2 ), the information layer ( 4 ) being covered by a transparent layer ( 3 ) of thickness t d ...
7145736 Lens assembly for an image sensor  
A lens assembly for an image sensor comprises an aperture, a first lens, a second lens and a third lens, which are arranged sequentially from the object side. The first lens is a planoconvex lens...
7142365 Optical lens, condenser lens, optical pickup, and optical recording/reproducing apparatus  
The present invention provides an optical lens having a high refractive index and a low light absorption characteristic in an ultraviolet-wavelength region; a condenser lens composed of the optical...
7130134 Optical scanning device  
The invention relates to an optical scanning device ( 1 ) for scanning an information layer ( 2 ) by means of a radiation beam ( 4 ). The device includes: a radiation source ( 6 ) for providing...
7130128 Lens for forming laser lines with uniform brightness  
A lens is provided for converting a laser beam into laser lines of uniform brightness. The lens has an emission plane through which the laser beam passes, the emission plane having a continuous...
7126764 Objective lens and optical head device provided with the same  
According to the present invention, there is provided an objective lens for an optical head device which condenses two or more laser beams having wavelengths corresponding to two or more optical...
7123424 Objective lens for optical information recording medium  
An objective lens capable of recording or reproducing informations of HD, DVD and CD is provided. A reference lens 2 a and a close-contact lens 2 b are closely in contact and bonded, the...
7116495 Optical system for optical pickup device, coupling lens and optical information recording/reproducing apparatus  
An optical system includes an objective lens; and a plastic coupling lens to change a divergent angle of a light flux emitted from a light source and is structured such that the light flux emitted...
7116494 Optical apparatus and method for adjusting amount of light of the same  
An optical apparatus provided in an optical pickup includes first and second light sources, a light splitting element, a condensing lens, a mounting base, a light receiving element, and a...
Matches 1 - 50 out of 283 1 2 3 4 5 6 >