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7230762 Polarization phase difference plate  
The object of the present invention is to provide an excellent-quality polarization phase difference plate that enables, by a simple structure: decrease in light loss and in oscillation of the...
7227690 Layer arrangement provided with a structure producing a diffractive optical effect and a lens-type effect  
A layer arrangement is proposed, particularly for transfer films or laminated films, which exhibits at least two superposed synthetic resin layers, between which there is provided an interface...
7221513 Hybrid achromatic optical lens and method for manufacturing the same  
A hybrid achromatic optical lens having a high numerical aperture whose chromatic aberration is removed and a method for manufacturing the same are provided. The hybrid achromatic optical lens...
7221512 Light control material for displaying color information, and images  
A light control material is provided for displaying color images having microstructures either on its surface or within the material which reflect a selected color and bandwidth of light in...
7218449 Optical device for scanning an optical record carrier  
An optical device for scanning an optical record carrier ( 20 ) has a radiation source ( 25 ) that can emit two radiation beams of different wavelength along different optical paths ( 28, 29 ). The...
7215471 Diffractive optical element, illumination system comprising the same, and method of manufacturing semiconductor device using illumination system  
An illumination system including a diffractive optical element (DOE) having an uneven surface that produces an illumination shape. The DOE comprising an uneven surface that produces a multipole...
7212340 Forming methods, forming devices for articles having a micro-sized shape and optical elements  
A article having a micro-sized shape being formed on the surface of the article by pressing a die onto the surface, wherein the elastic modulus of the article at room temperature is in the range of...
7206126 Optical system, and image pick-up apparatus using the same  
An optical system including a diffractive optical element, and an optical member for suppressing incidence of ultraviolet radiation on the diffractive optical element is disclosed. The optical...
7203001 Optical retarders and related devices and systems  
In certain aspects, the disclosure relates to articles that include a plurality of walls configured to form a grating. Each of the plurality of walls can include a layer of a first material and a...
7199926 Diffraction grating device and optical apparatus  
A diffraction grating device for splitting or coupling light beams permits the divergence of the light beams to be minimized easily. A first light beam is incident on a diffraction grating from the...
7198737 Electrically switchable polymer-dispersed liquid crystal materials including switchable optical couplers and reconfigurable optical interconnects  
A new photopolymerizable material allows single-step, fast recording of volume holograms with properties that can be electrically controlled. A method for preparing a switchable grating can...
7190522 Chemical synthesis using diffraction grating-based encoded optical elements  
An optical identification element having a synthesized chemical attached thereto includes an optical substrate having at least one diffraction grating disposed therein, the grating having a...
7190521 Space-variant subwavelength dielectric grating and applications thereof  
An optical device includes a planar subwavelength grating ( 10 ) formed in a dielectric material and having a laterally varying, continuous grating vector. When used to modulate a beam of laterally...
7187820 Optical time delay system  
Optical systems utilizing pixellated switchable elements to provide interaction between at least two White Cells.
7187499 Optical grating and method for the manufacture of such an optical grating  
An optical grating has a multiplicity of parallel diffraction structures, which are arranged on a support defining a base face. Each structure has a blaze flank that is inclined substantially at...
7184214 Diffraction grating element, production method of diffraction grating element, and method of designing diffraction grating element  
In a diffraction grating element 10 , between a first medium 11 and a fourth medium 14 , a second medium 12 and a third medium 13 are disposed alternately to form a diffraction grating. The...
7180669 Method and system for generating substantially uniform speckle patterns  
A diffractive optical element is positioned in an optical path between a coherent light source and a surface. The diffractive optical element is designed to disperse the light across one or more...
7180668 Optical pickup device and optical disc device  
This invention is an optical pickup device having a composite optical element ( 32 ) which has a first diffraction grating ( 45 ) for splitting a light beam emitted from a light source ( 31 ) into...
7180590 Transmission spectrometer with improved spectral and temperature characteristics  
Transmission spectrometers require low levels of background light so that the signal to noise ratio is increased, and also require stable performance over wide temperature ranges. Light reflected...
7173764 Apparatus comprising a tunable nanomechanical near-field grating and method for controlling far-field emission  
A tunable nanomechanical near-field grating is disclosed which is capable of varying the intensity of a diffraction mode of an optical output signal. The tunable nanomechanical near-field grating...
7170682 Projection aligner, aberration estimating mask pattern, aberration quantity estimating method, aberration eliminating filter and semiconductor manufacturing method  
A projection aligner of the present invention, in which ultraviolet light emitted from a lamp housing is split by a fly-eye lens into a large number of point light sources which are independent of...
7164533 Hybrid random bead/chip based microarray  
A method and apparatus f or performing an assay process, featuring providing microbeads in a solution; placing the microbeads on an alignment substrate; reading codes of the microbeads and the...
7164532 Diffraction grating, light source unit applying the same therein, and optical head device employing the same  
A polarization diffraction grating includes two media having different orientation states arranged alternately and cyclically, wherein each boundary between the media forms an oblique rectangular...
7151635 Planar waveguide reflective diffraction grating  
The invention relates to a planar waveguide reflective diffraction grating for use in an optical device, such as a wavelength division multiplexer, providing an increased bandwidth over...
7149030 Diffractive optical element and also optical arrangement comprising a diffractive optical element  
A diffractive optical element has a plurality of diffraction structures for a certain wavelength. These each have a width measured in the plane of the diffractive optical element and a height...
7149016 Optical element and scanning optical system having the same and image forming apparatus  
An optical element that can reduce Fresnel (surface) reflection on a lens surface to be a cause of flare or ghost, and a scanning optical system having the same are provided. A microstructure...
7145723 Security element  
A security element ( 2 ) in the form of a laminate can be used for the authentication of a document ( 1 ). The laminate has at least a transparent protective layer, a transparent lacquer layer and...
7145722 Optical filter and method of manufacturing thereof  
Novel structure of the optical elements (i.e. filter) to be operated in the long, mid, and near infrared wavelengths of lights is provided. The filter can offer very narrow linewidth, and high...
7145721 Anti-reflective structures  
An anti-reflective structure is formed on a surface to transmit incident light with minimal losses. The anti-reflective surface has a plurality of protrusions having a feature size smaller than the...
7142751 Methods and systems for chromatic dispersion compensation in switched grating WDM devices  
Methods and system for chromatic dispersion compensation in disperser-combiner optical systems. The chromatic dispersion in disperser-combiner optical systems is substantially compensated by, after...
7142363 Diffraction element and optical device  
A diffraction element having high diffraction efficiency and large wavelength-separation effect, which is excellent in mass-productivity and is formed by a simple process, is obtained. In a...
7136227 Fresnel zone plate based on elastic materials  
A dynamically variable, amplitude grating based diffractive optic including: a substantially transmissive, elastic substrate; a substantially opaque, elastic material formed in a predetermined...
7136226 Front teleconverter lens system  
A front teleconverter lens system having superb optical performance with less production of aberration in spite of its compactness. The front teleconverter lens system includes, in order from an...
7133205 Atmospheric stabilizer filter and method  
A diffracting optical filter for use with telescopes provides a plurality of cells separated by opaque lines on an translucent substrate, the spacing of the cells proportionally spaced to match the...
7130124 Average pitch gratings for optical filtering applications  
A pitch averaging Bragg grating includes a plurality of grating peaks spaced by different pitch values. By selecting the different pitch values to have an average pitch value equal to a target...
7129183 Method of forming grating microstrutures by anodic oxidation  
A method of manufacturing an element having a microstructure of an excellent grating groove pattern or the like is obtained. This method of manufacturing an element having a microstructure...
7126755 Method and apparatus for labeling using diffraction grating-based encoded optical identification elements  
A method and apparatus for labeling an item using diffraction grating-based encoded optical identification elements 8 includes an optical substrate 10 having at least one diffraction grating ...
7123415 Optical instrument and optical element providing expanded exit pupil  
The invention provides an optical instrument including means ( 1, 2 ) to produce an optical image to be viewed by an observer including a diffractive element ( 7 ) located at an intermediate focal...
7123414 Method for producing library  
A method for producing a library includes the steps of calculating a plurality of conditions for a reflection light from a periodic pattern by changing the sectional shape of the periodic pattern,...
7123413 DOE-based systems and devices for producing laser beams having modified beam characteristics  
Novel methods are disclosed for designing and constructing miniature optical systems and devices employing light diffractive optical elements (DOEs) for modifying the size and shape of laser beams...
7119958 Diffraction grating element and optical pickup  
A diffraction grating element including a diffraction grating area which includes: a first area that is one of two areas into which the diffraction grating area is divided by a first straight line,...
7116478 Polarization beam splitter and optical system using the same, and image displaying apparatus, using the same  
In a conventional polarization beam splitter, it has been difficult to improve the angle-dependence characteristic of polarized beam splitting efficiency even if the number of layers is increased....
7114820 Backlighting light pipe for illuminating a flat-panel display  
The invention relates to a new light pipe ( 313 ) for providing backlighting ( 312 ) of a flat-panel display ( 311 ) by means of at least one light source so that the light pipe has at least one...
7110181 Method for generating electromagnetic field distributions  
This invention relates to a platform ( 11 ) and a method for generating electromagnetic field distributions. The invention relates in particular to optical sensors for measuring biological or...
7110180 Diffraction grating, method of fabricating diffraction optical element, optical pickup device, and optical disk drive  
A diffraction grating with periodically arranged protrusions and grooves at a relatively narrow pitch and improved diffraction efficiency is disclosed. The protrusions of the grating are made of a...
7106513 Diffraction grating-based encoded particle  
An encoded particle 8 includes a particle substrate 10; at least a portion of the substrate having at least one diffraction grating disposed therein, the grating having a resultant refractive...
7102823 Diffractive security element having an integrated optical waveguide  
A diffractive security element ( 2 ) is divided into surface portions, having an optically effective structure ( 9 ) at interfaces embedded between two layers of a layer composite ( 1 ) of plastic...
7099086 Wavelength division multiplexing system and method using reconfigurable diffraction grating  
An improvement in a wavelength division multiplexer and/or a dense wavelength division multiplexer (WDM/DWDM) is achieved by incorporating an electronically reconfigurable diffraction grating...
7099085 Optical pick-up apparatus and semiconductor laser apparatus  
An optical pick-up apparatus and a semiconductor laser apparatus which can suppress reduction of optical utilization efficiency for the laser light emitted from the semiconductor laser element....
7088513 Diffraction element, optical head device including the diffraction element, optical information apparatus including the optical head device, system including the optical information apparatus and method of designing diffraction grating of the diffraction element  
A diffraction element includes a light-transmittable member and a diffraction grating formed on at least one face of the light-transmittable member. When a first laser beam having a first...
Matches 51 - 100 out of 724 < 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 >