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Document Title |
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7609371 |
Lens meter
A lens meter for measuring optical characteristics of a lens to be measured includes a measurement optical system including a light source which projects a measurement light beam to the lens and a...
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7581305 |
Method of manufacturing an optical component
A method of manufacturing an optical component comprising a substrate and a mounting frame with plural contact portions disposed at predetermined distances from each other is provided. The method...
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7501645 |
Cornea characteristics measuring device
An apparatus for measuring characteristics of a substance is provided. The apparatus includes a light source to generate light to form an image. A splitter transmits the light from the light source...
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7450225 |
Correction of optical metrology for focus offset
A metrology system performs optical metrology while holding a sample with an unknown focus offset. The measurements are corrected by fitting for the focus offset in a model regression analysis....
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7414713 |
Method of measuring focal point, instrument used therefor, and method of fabricating semiconductor device
A shape value of a pattern having a pivotal characteristic is measured (step S 1 ), an exposure energy variation is detected from the measured value, a first data base is accessed using a result of...
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7400388 |
Method for determining distortion and/or image surface
A method for determining at least one of distortion and de-focus for an optical imaging system. The method includes determining wavefront aberrations in a pupil plane of the optical imaging system...
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7382447 |
Method for determining lithographic focus and exposure
A method for determining one or more process parameter settings of a photolithographic system is disclosed.
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7379171 |
Optical object distance simulation device
An optical object distance simulation device is disclosed. The device has an optical lens module composed of a plurality of optical lens and the optical lens module is arranged between an optical...
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7352453 |
Method for process optimization and control by comparison between 2 or more measured scatterometry signals
A method for determining one or more process parameter settings of a photolithographic system is disclosed.
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7349078 |
Characterization of lenses
In accordance with one embodiment of the present invention, a method of characterizing a lens is provided. According to the method, an optical source such as a laser is configured to generate a...
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7292324 |
Spherical aberration detection
The invention relates to an optical device in which a spherical aberration is detected. The optical device comprises means ( 206, 208 ) for focussing a first radiation beam ( 203 ) having a first...
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7248347 |
Focus processing with the distance of different target wheels
An apparatus and method for automatically focusing a miniature digital camera module (MUT) is described. A MUT is loaded onto a test fixture and aligned with an optics system of a test handler....
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7230693 |
Lens meter
A lens meter for measuring optical characteristics of a subject lens to be measured includes at least three light sources for measurement, a projecting lens which projects measurement light bundles...
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7154111 |
Cornea characteristics measuring device
An apparatus for measuring characteristics of a substance is provided. The apparatus includes a light source to generate light to form an image. A splitter transmits the light from the light source...
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7151595 |
Focus error detecting device and optical pickup device having the same
A focus error detecting device for an optical pickup having an aberration correcting lens group includes a diffraction optical element having an outer diameter which is smaller than a diameter of...
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7106428 |
Focal length measuring device
A focal length measuring device comprises a light source unit for generating a collimated light, a diffraction grating for deflecting the collimated light by a deflection angle θ, and an...
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7050161 |
Global radius of curvature estimation and control system for segmented mirrors
An apparatus controls positions of plural mirror segments in a segmented mirror with an edge sensor system and a controller. Current mirror segment edge sensor measurements and edge sensor...
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6975387 |
Wavefront aberration measuring instrument, wavefront aberration measuring method, exposure apparatus, and method for manufacturing micro device
Before measuring a wavefront aberration of a projection optical system, an image formation position of an image of a pattern of a test reticle which is formed on a predetermined surface is detected...
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6897948 |
Variable-wavelength light source apparatus
An optical coupler 13 , a reflection attenuation amount measurement photodetector 14 , and an APC photodetector 15 are provided in a variable-wavelength light source apparatus 1 and the...
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6839132 |
Aberration measuring method of projection optical system
There is disclosed aberration measuring method of a projection optical system comprising collectively irradiating the finite region of the photomask in which a diffraction grating is formed with...
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6819413 |
Method and system for sensing and analyzing a wavefront of an optically transmissive system
An enhanced dynamic range wavefront sensing system includes a light source disposed on a first side of an optically transmissive device, a wavefront sensor disposed on a second side of an optically...
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6778265 |
Copy feature for recordable DVD editing
A method for copying a recorded series of bits from a first location to a second location on a rewritable disc media. The method includes the steps of selectively marking a beginning point and an...
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6760096 |
Lens-evaluating method and lens-evaluating apparatus
A method for evaluating the quality of a lens comprising illuminating imaging light on a screen through the lens to form a projected image, where the imaging light having a test-pattern image is...
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6563947 |
Application specified integrated circuit for use in wavefront detection
A device for detecting a wavefront that is defined by a plurality of contiguous light beams includes an array of lenslets for isolating the individual light beams and focusing each individual light...
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6552782 |
Apparatus and method for generation of optical signals
A laser system is disclosed wherein a tunable laser signal has encoded within it information related to its wavelength at any instant in time. This encoding in one example is performed by...
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6486942 |
Method and system for measurement of a characteristic of lens
A method and system are provided for measuring a characteristic of a lens. By directing light to a lens, and receiving reflected light from a opposite end faces of the lens on an image plane, a...
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6480267 |
Wavefront sensor, and lens meter and active optical reflecting telescope using the same
A wavefront sensor includes a plurality of lenses disposed in the same plane, and an area sensor that receives a bundle of rays of light collected through each of the lenses as a luminous point....
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6437857 |
Variable field angle and test pattern spatial frequency system for testing a lens
A variable field angle and test patern spatial frequency optical assemblage for testing a lens having a plurality of field angles employs an improved modulation transfer function (MTF) design...
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6421119 |
In Vitro evaluation of animal or human lens characteristics
An improved apparatus and method for evaluation of focal length and transparency of vertebrate eye lenses is provided. Preferably with the aid of an alignment camera, a lens horizontally mounted in...
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6346981 |
Lens testing device
A lens testing device comprises a holder, fitted on a stand, for mounting a lens specimen, a test object illuminated from the rear, an imaging objective and a detector for evaluating the image of...
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6177986 |
Method of testing a lens having variable field angles
An assemblage and method for testing a lens having a plurality of field angles employs an improved modulation transfer function (MTF) design system for evaluating image quality produced by the lens...
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6147751 |
Lens refractometer
A refractometer and a method for measuring the refractive index of a lens, wherein a thin insert in the form of a pad of a flexible transparent material attached to a rigid transparent sheet, is...
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6061124 |
Apparatus and method for generation of optical signals
A method and apparatus of generating a test signal for broadcast to a plurality of locations for testing optical devices is disclosed. A tunable laser sweeps from a lower wavelength to a higher...
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6031604 |
Gun-sight dry zeroing assembly
A dry zeroing assembly is provided for zeroing a gun-sight implemented on a gun having a barrel. The dry zeroing assembly includes (a) a housing defining a first optical path and a second optical...
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5973773 |
Lens distortion measurement using moire fringes
A lens distortion measurement system has a first grating of a first pitch on a transparent support such as a quartz reticle. The reticle is disposed between an illumination source and the lens...
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5933228 |
Integral imaging lens sheets
A method, and apparatus and lens sheet manufacturing process which utilize the method, of evaluating the quality of a lenticular lens sheet having a front side carrying a plurality of elongated...
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5917586 |
Lens meter for measuring the optical characteristics of a lens
A lens meter is provided in which a beam of light from an illumination optical system (20) is made incident upon a lens (40) to be inspected, the light beam which has passed through the lens (40)...
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5898479 |
System for monitoring optical properties of photolithography equipment
A focus evaluation technique for photolithography equipment is disclosed. This technique includes providing a substrate having a photoresist coating for treatment by the equipment. The equipment is...
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5896193 |
Apparatus for testing an optical component
A method and apparatus of generating a test signal for broadcast to a plurality of locations for testing optical devices is disclosed. A tunable laser sweeps from a lower wavelength to a higher...
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5835208 |
Apparatus to measure wedge and centering error in optical elements
The present invention provides a measuring apparatus (10) for centering and determining wedge error of an optical element (12) under test. The measuring apparatus (10) preferably includes a lens...
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5793482 |
Multiple optical lens system with auto-focus calibration
The present invention discloses an optical system with multiple optical lens having capability of auto-focus calibration, instead of conventional scheme of manual operations. Furthermore, achieve...
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5602640 |
Lensmeter accessory
A lensmeter accessory is disclosed for supporting and positioning a corneal contact lens in a light path of a lensmeter. The accessory comprises a generally planer body with a tapered slot therein...
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5582185 |
Device for evaluating optical elements by reflected images
A method and apparatus for evaluating optical elements which utilizes reflected images. The method allows determination of the optical effects contributed by individual surfaces of a single optical...
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5574555 |
Lens inspection method and apparatus
A lens inspection device has an objective lens composed by front and rear lenses, a two-dimensional image sensor and an image forming lens for forming a point image of light passing through the...
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5521700 |
Meter for testing progressive multifocus lenses
The present invention provides a lens meter capable of accurately measuring the optical characteristics of a lens including additive diopter and of providing highly reliable data representing the...
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5462739 |
Microdelivery device and method for enhanced drug administration to the eye
A device for pinpoint application of micro-quantities of a pharmacologically suitable composition to the outer hard coat of the eye, comprises a micro-container with a fixation element. The...
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5349433 |
Automatic lensmeter
An automatic lensmeter for automatically measuring a lens characteristic of a lens to be tested, comprises: a measuring unit including an optical system for detecting a refraction characteristic of...
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5335059 |
Method and apparatus for measuring lens performance
A method and apparatus for lens measurement that provide for a small error of measurement where a light source used for measurement emits a beam of light at a wavelength different from an operating...
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5301004 |
Method and apparatus for determining the optical properties of a lens
Optical properties of a lens, including localized defects, are determined by analyzing the refracted image produced by transmitting a beam of light through an aperture and a lens to be tested. The...
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5247341 |
Lensmeter for automatically measuring optical characteristic of a power lens
An automatic lensmeter for measuring optical characteristics of a lens to be examined is disclosed. The automatic lensmeter includes a display for displaying thereon an alignment target, first and...
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