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7452820 Radiation-resistant zone plates and method of manufacturing thereof  
Disclosed are radiation-resistant zone plates for use in laser-produced plasma (LPP) devices, and methods of manufacturing such zone plates. In one aspect, a method of manufacturing a zone plate...
7443587 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...
7420737 Reconfigurable zone plate lens  
A reconfigurable zone plate lens is disclosed. Some embodiments may include a central annular element having a first a first circumference centered about a central axis. Embodiments may also...
7418170 Optical device and virtual image display device  
A virtual image display device is provided which displays a two-dimensional image for viewing a virtual image in a magnified form by a virtual optical system. The virtual image display device...
7414787 Phase contrast microscope for short wavelength radiation and imaging method  
A phase contrast x-ray microscope has a phase plate that is placed in proximity of and attached rigidly to the objective to form a composite optic. This enables easier initial and long-term...
7405883 Optical component and method of manufacture of optical component  
An optical component or optical low-pass filter has two or more regions demarcated by differences in refractive indexes, in which a region having a refractive index different from the refractive...
7400458 Imaging optics with wavelength dependent aperture stop  
An imaging system includes a wavelength dependent aperture stop, which transmits light with different ranges of wavelengths through apertures of different diameters. Thus, different colored light...
7365909 Fabrication methods for micro compounds optics  
Methods for fabricating refractive element(s) and aligning the elements in a compound optic, typically to a zone plate element. The techniques are used for fabricating micro refractive, such as...
7348104 System and method for fabrication and replication of diffractive optical elements for maskless lithography  
A method is disclosed for forming an array of focusing elements for use in a lithography system. The method involves varying an exposure characteristic over an area to create a focusing element...
7283205 Optimized optical lithography illumination source for use during the manufacture of a semiconductor device  
A method and structure for optimizing an optical lithography illumination source may include a shaped diffractive optical element (DOE) interposed between the illuminator and a lens during the...
7268945 Short wavelength metrology imaging system  
An extreme ultraviolet (EUV) AIM tool for both the EUV actinic lithography and high-resolution imaging or inspection is described. This tool can be extended to lithography nodes beyond the 32...
7262915 Blazed diffractive optical element and projection objective for a microlithographic projection exposure apparatus  
A blazed diffractive optical element has a support and a plurality of blazed diffraction structures. The diffraction structures are applied on the support and are spaced apart by a locally varying...
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...
7227618 Pattern generating systems  
A pattern generating system for generating two-dimensional images on a surface includes a light source and one or more Zone Plate Modulator (ZPM) arrays. The ZPM arrays comprise diffractive zone...
7209293 Optical imaging system having an expand depth of field  
An optical imaging system, for example, for a surgical microscope ( 100 ) has a beam deflecting unit in order to cast light rays out of an object region ( 112 ) into an image plane ( 104 ) with an...
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...
7170681 Optical scanning device  
An optical scanning device ( 1 ) for scanning three information layer ( 2, 2′, 2″ ) with three respective radiation beams ( 4, 4′, 4″ ) having three respective wavelengths (λ 1 , λ 2 , λ...
7164534 Diffuser plate and method of making same  
An electromagnetic radiation diffuser, operative at extreme ultraviolet (EUV) wavelengths, is fabricated on a substrate. The diffuser comprises a randomized structure having a peak and valley...
7154672 Optical film having controlled scattering/transmitting characteristics  
An optical film composed by laminating a light scattering film 1 scattering and transmitting light and comprising at least two phases or more different in refractive index and a reflective...
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...
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...
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...
7099084 Diffractive wave modulating devices  
A zone plate modulator modulates an incident wave by changing the relative distance between a pair of complementary reflective zone plates. The modulator acts to reflect the incident wave as a...
7085062 Apparatus for shaping a light beam  
The invention relates to an apparatus for shaping a light beam, having at least two optically functional boundary surfaces that are arranged one behind another in the propagation direction (z) of...
7085055 Diffractive optical system  
The invention relates to a diffractive optical system having a two-dimensional structure, which can be used as a phase shift mask for the fabrication of an optical element having a two-dimensional...
7006290 Optical system and method of designing optical system  
An optical system includes a diffractive optical element and a refractive optical element. The diffractive optical element corrects a chromatic aberration flare component of wavelengths other than...
7002747 Diffuser plate and method of making same  
An electromagnetic radiation diffuser, operative at extreme ultraviolet (EUV) wavelengths, is fabricated on a substrate. The diffuser comprises a randomized structure having a peak and valley...
6992824 Efficient wave propagation for terahertz imaging and sensing  
A method of wave propagation from 100–10000 GHz. The currently disclosed method and apparatus adapts micro-opto-electro-mechanical systems (MOEMS) technologies and processes to construct Kinoform...
RE38943 Compound objective lens for optical disks having different thicknesses  
A compound objective lens is composed of a hologram lens or transmitting a part of incident light without any diffraction to form a beam of transmitted light and diffracting a remaining part of the...
6990276 Optical waveform recognition and/or generation and optical switching  
A planar optical waveguide has sets of diffractive elements, each routing between input and output optical ports diffracted portions of an input optical signal. The diffractive elements are...
6987911 Multimode planar waveguide spectral filter  
A spectral filter comprises a planar optical waveguide having at least one set of diffractive elements. The waveguide confines in one transverse dimension an optical signal propagating in two other...
6987613 Forming an optical element on the surface of a light emitting device for improved light extraction  
Provided is a light emitting device including a Fresnel lens and/or a holographic diffuser formed on a surface of a semiconductor light emitter for improved light extraction, and a method for...
6985656 Temperature-compensated planar waveguide optical apparatus  
An optical apparatus (spectral filter, temporal encoder, or other) comprises a planar optical waveguide having at least one set of diffractive elements. Each diffractive element set routes by...
6975457 Three-dimensional imaging system  
A three-dimensional imaging system is described which exploits the defocusing of non-zero diffraction order images caused by the quadratic distortion of a diffraction grating ( 4 ). An optical...
6965717 Optical device, polarization monitor and optical switch  
The present invention has for its object to provide an optical device whose size is made small. In order to achieve this, according to the present invention there is provided an optical device in...
6965716 Amplitude and phase control in distributed optical structures  
A distributed optical structure comprises a set of diffractive elements. Individual diffractive element transfer functions collectively yield an overall transfer function between entrance and exit...
6965476 Diffractive optical element  
A diffractive optical element includes a first diffractive optical part having a phase type diffractive grating, and a second diffractive optical part having a phase type diffractive grating formed...
6963437 Devices incorporating electrochromic elements and optical sensors  
The device of the present invention includes an electrochromic element having a transmittance that varies in response to an electrical signal, a base substrate disposed in spaced relation to the...
6927914 Grism  
In order to achieve highly dispersive spectrometry in wide wavelength with the use of a single grism, but not a plurality of grisms, the grism is composed of a prism the vertex angle of which can...
6917472 Achromatic fresnel optics for ultraviolet and x-ray radiation  
An achromatic Fresnel optic that combines a Fresnel zone plate and a refractive Fresnel lens. The zone plate provides high resolution for imaging and focusing, while the refractive lens takes...
6914723 Reflective lithography mask inspection tool based on achromatic Fresnel optics  
A mask blank inspection tool includes an AFO having a diffractive lens and a refractive lens formed on a common substrate. The diffractive lens is a Fresnel zone plate and the refractive lens is a...
6909546 Multipoint lump homogenizing optical system  
When a Gaussian power distribution laser beam is converted into a uniform power density beam by a converging homogenizing DOE and is divided into a plurality of homogenized beams by a diverging...
6885503 Achromatic fresnel optics based lithography for short wavelength electromagnetic radiations  
A lithography apparatus having achromatic Fresnel objective (AFO) that combines a Fresnel zone plate and a refractive Fresnel lens. The zone plate provides high resolution for imaging and focusing,...
6882482 Liquid-crystal lens and method and apparatus for driving the same  
A liquid-crystal lens includes a hologram liquid-crystal element having a liquid crystal which provides a light beam transmitting therethrough with a phase change so as to have a wavefront of a...
6873463 Diffractive optical element and optical system having the same  
Disclosed is a diffractive optical element which is made of at least two materials of different dispersions and which includes at least two diffraction gratings being accumulated one upon another,...
6870677 Optical material, optical element, multilayer diffraction optical element, optical system, and method of molding optical element  
An optical element having a diffraction shape uses an optical material comprising at least N-vinylcarbazole, polyvinylcarbazole, and the light polymerization initiator. By using such optical...
6865025 Aberration compensating optical element, optical system, optical pickup device, recorder and reproducer  
An aberration compensating optical element includes: a diffractive structure having a plurality of ring-shaped zone steps formed into substantially concentric circles on at least one surface of the...
6856460 Diffractive optical element for providing favorable multi-mode fiber launch and reflection management  
A light transmission system includes a laser, an optical fiber, and a transfer lens. The transfer lens transfers light emitted by the laser into the optical fiber. The transfer lens includes a...
6836365 DIFFRACTIVE OPTICAL ELEMENT, METHOD OF FABRICATING THE ELEMENT, ILLUMINATION DEVICE PROVIDED WITH THE ELEMENT, PROJECTION EXPOSURE APPARATUS, EXPOSURE METHOD, OPTICAL HOMOGENIZER, AND METHOD OF FABRICATING THE OPTICAL HOMOGENIZER  
A diffractive optical element efficiently converts an input light beam into an output light beam having a specified cross-sectional shape. The diffractive optical element includes a plurality of...
6829417 Amplitude and phase control in distributed optical structures  
A distributed optical structure comprises a set of diffractive elements. Individual diffractive element transfer functions collectively yield an overall transfer function between entrance and exit...
Matches 1 - 50 out of 369 1 2 3 4 5 6 7 8 >