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7619726 |
Method of measuring light leakage intensity ratio and filter
A color filter with low color shift is defined by a light leakage spectrum in the dark state. The color filter is disposed between two polarizing plates so as to measure a first spectrum of dark...
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7619722 |
Lens replacing method and manufacturing method for alternative lens
A method for replacing a lens having refractive power in a first projection optical system includes measuring a wavefront of measuring light passing through the first projection optical system in a...
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7617060 |
Extracting higher order information from scene-based Shack-Hartmann wave-front sensing
An adaptive optics system is provided, comprising a deformable mirror configured to receive an input beam with an aberrated wavefront and to reflect the input beam to a Shack-Hartmann wavefront...
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7609372 |
System and method for measuring length of camera lens
A system for measuring a total track length of a telescopic lens includes a testing chart, a light source, a processor, a display screen and a range finder. The lens and an image sensor are...
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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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7605353 |
Method and apparatus for creating high-quality digital images
Methods and apparatus for increasing the quality of digital images produced by systems using uncorrected lenses where in-focus elements in the image space of the lens are detected and recorded as...
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7599049 |
Apparatus for testing light transmission through lens
An apparatus for testing transmission of a lens includes a light source, a focusing device, an integrating sphere, a moveable carrier, a detector, and a processor. Light, in a specific wavelength...
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7596422 |
Determining one or more profile parameters of a structure using optical metrology and a correlation between profile models and key profile shape variables
One or more profile parameters of a structure fabricated on a wafer in a wafer application are determined by developing a correlation between a set of profile models and one or more key profile...
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7593107 |
Method and system for diffusion attenuated total reflection based concentration sensing
A system for measuring light absorption levels includes a light source providing a light beam and a container for a liquid. The container includes an opening to provide access to the liquid. A...
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7589830 |
Method for testing a lens and positioning the lens relative to an image sensor
A method for testing and positioning a lens includes determining whether a modulation transfer function (MTF) value of the lens for an object at a first object distance is not less than a first...
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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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7580122 |
Image inspection method by polarized compensation for deformation of lens
A lens inspection device and method are provided. The lens inspection method includes the steps of providing a collimating light beam, polarizing the collimating light beam by a polarizer to...
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7570351 |
Method and system for measuring the curvature of an optical surface
A system and method of measuring the curvature of a surface of a object operate by illuminating the object surface with a light pattern having a known size to produce a virtual reflected image from...
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7564556 |
Method and apparatus for lens contamination control
The present disclosure provides a method for measuring lens contamination in a lithography apparatus. The method includes imaging an asymmetric pattern utilizing a lens system and measuring an...
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7561260 |
System for verifying the accuracy of lens holder attachment, lens attachment stage, and lens processing system
A system comprises the step for applying a mark in advance in a reference position in which attachment of a lens holder is anticipated on a convex lens surface of a reference lens; the step for...
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7538863 |
Device and a method of automatically detecting various characteristics of an ophthalmic lens
Device ( 100 ) for automatically detecting various characteristics of an ophthalmic lens ( 10 ), the device includes a support ( 110 ) adapted to receive the lens. The support is displaceable in...
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7532315 |
Automatic lens blocking apparatus
An automatic lens blocking apparatus having a tracer and a lensmeter therein, for adhering a block to a lens by using a robot arm, is disclosed. The automatic lens blocking apparatus comprises: a...
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7528954 |
Method of adjusting optical imaging system, positional deviation detecting mark, method of detecting positional deviation, method of detecting position, position detecting device and mark identifying device
A method of adjusting optical imaging system is provided to finely adjust arrangement of optical elements with sensitivity. Illumination light with a predetermined wavelength band is irradiated to...
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7519940 |
Apparatus and method for compensating a lithography projection tool
An apparatus and method of compensating for lens imperfections in a projection lithography tool, includes extracting from a diffraction image created by the projection lithography tool a lens...
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7518712 |
Tilted edge for optical-transfer-function measurement
The optical transfer function of imaging optics is carried out with a plurality of tilted edges with respect to the edge-response detection line. The effect of the tilt is to stretch out the edge...
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7515255 |
Method and apparatus for detecting concentricity of lens module
A detecting apparatus includes a light source configured (i.e., structured and arranged) for irradiating the lens module with light, the light being brought into a focus by the lens module; a...
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7515254 |
Reflection-testing device and method for use thereof
A reflection-testing device for testing for unwanted reflections in a lens module ( 12 ) includes a plurality of light sources ( 18 ) and an image capturer ( 16 ). The plurality of light sources is...
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7511803 |
Method for displaying result of measurement of eccentricity
A method for displaying a result of measurement of eccentricity in an optical system is provided where an amount of eccentricity for each lens element's surface in a lens system can be displayed...
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7510629 |
Method and device for analysing surface structure in paper or board
A method for analyzing in real-time in a paper machine or board machine the surface structure of a web ( 1 ) of paper or board which method comprises the direction of an imaging system towards a...
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7508502 |
Device for automatically detecting markings on an ophthalmic lens
A device ( 100 ) enabling automatic detection of the index marks of an ophthalmic lens ( 10 ), includes a support ( 110 ) which is adapted in such a way as to receive the lens, and, on each side of...
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7505152 |
Optical metrology system
An optical metrology system having an optical metrology sensor assembly and a target is disclosed. The optical metrology sensor assembly transmits a light beam to the target and then uses the...
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7499600 |
Method for characterizing a digital imaging system
A method for use in characterizing a digital imaging system ( 53 ) having an array of imaging elements ( 35 ), and in particular for measuring the modulation transfer function (sometimes called the...
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7495753 |
Method and apparatus for contactless measurement of the radius of curvature of an ophthalmic article
The invention relates to a method and to apparatus for contactlessly measuring the curvature of an ophthalmic article ( 1 ) having a “front” face ( 1 B) that presents said curvature. The method...
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7489828 |
Methods, system, and program product for the detection and correction of spherical aberration
The present invention provides methods, a system, and a program product for the rapid detection and correction of spherical aberration in microscopy systems. More specifically, the present...
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7487069 |
Method for generating a control output for a position control loop
A method for optically detecting the position of a moveable test object ( 10 ), especially a mirror or reflector, in which a measuring beam ( 6 ) produced by a light source ( 2 ) is reflected by...
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7486389 |
Lens meter for measuring refractive power distribution
A lens meter having a simple configuration, which is capable of precisely measuring optical characteristics such as refractive power distribution in a wide range of a subject lens to be measured at...
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7483126 |
Performance analyses of micromirror devices
The invention provides a method and apparatus for evaluating the product quality and performances of micromirror array devices through measurements of the electromechanical responses of the...
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7477366 |
Contact lens blister packages and methods for automated inspection of hydrated contact lenses
A contact lens package includes a base member including a cavity dimensioned to accommodate contact lens and a liquid therein. The combination of the cavity, the contact lens, and the liquid...
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7463367 |
Estimating overlay error and optical aberrations
Aberration marks, which may be used in conjunction with lenses in optical photolithography systems, may assist in estimating overlay errors and optical aberrations. Aberration marks may include an...
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7463347 |
Simulator of optical intensity distribution, computer implemented method for simulating the optical intensity distribution, method for collecting mask pattern, and computer program product for the simulator
A simulator of an optical intensity distribution includes a field divider dividing an exposure field on a substrate into a first and second fields, the first field being to be directly exposed to a...
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7457478 |
Image processing apparatus, image processing system, and image processing method
An image processing apparatus, an image processing system and an image processing method can correct the distortion of an image at a low cost and can generate a high quality image in real time. An...
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7457434 |
Adaptively focusing extra-ocular vision prostheses
A vision prosthesis includes an actuator in communication with an extra-ocular lens. The actuator providing a focusing stimulus to vary a focal length of the lens. A rangefinder estimates a range...
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7456941 |
Measuring device for measuring the refraction properties of optical lenses
The invention relates to a measuring device ( 01 ) for measuring the refraction properties of optical lenses ( 07 ), especially spectacle glasses, comprising a measuring light grid ( 20 ) for...
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7449264 |
Compensation of reflective mask effects in lithography systems
Aberrations may be introduced in mirror surfaces used in a lithography system utilizing a reflective mask to compensate for adverse optical effects associated with reflective masks. A spherical...
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7443493 |
Transfer characteristic calculation apparatus, transfer characteristic calculation method, and exposure apparatus
A transfer characteristic calculation apparatus for calculating a transfer characteristic of an imaging optical system includes a light source, a generation unit which generates a second signal by...
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7443492 |
Device and method for testing lens modules
A device and a method for testing lens modules are disclosed in accordance with a preferred embodiment. The device includes a testing platform, an image sensor, a light source assembly, and a...
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7440089 |
Method of measuring decentering of lens
Disclosed is a measuring method which can measure the decentering of an axis by the measurement of a two-dimensional curved surface profile. This method has a first step of measuring a profile of a...
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7439491 |
Error reduction for image capturing device
Aspects of the subject matter described herein relate to reducing error in images obtained from an image-acquiring system. An image-acquiring system may be modeled as light received from a primary...
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7436527 |
Systems and methods for immersion metrology
Fluid immersion technology can be utilized to increase the resolution and angular range of existing metrology systems. An immersion fluid placed between the metrology optics and the sample can...
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7433027 |
Apparatus and method for detecting lens thickness
The present invention relates to a non-contact/non-destructive method and apparatus for measuring the thickness of an ophthalmic lens. The present invention also provides a method for inspecting or...
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7423741 |
Method for visualizing a mark on a spectacle lens
A method and an apparatus for making visible a mark on a spectacle lens are disclosed. An illumination light beam is directed to the spectacle lens. The illumination light beam runs through the...
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7423740 |
Reticle and optical characteristic measuring method
A reticle having a test pattern for measurement of an optical characteristic of a projection optical system has a pattern adapted so that a high frequency component of a spectrum at a pupil plane...
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7420667 |
Equipment for capturing the contour, markings, bores, millings and etchings of an ophthalmic lens or template lens for glasses
Equipment for capturing the contour, markings, bores, millings and etchings of an ophthalmic lens or a template lens for glasses. Equipment for capturing the contour, markings, bores, millings and...
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7414714 |
Light adjustable aberration conjugator
A method of correcting aberrations in an optical system by applying a light adjustable aberration conjugator layer to a component of the system, determining the nature of the aberration, applying...
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7408652 |
Device and method for the optical measurement of an optical system by using an immersion fluid
A device for the optical measurement of an optical system, in particular an optical imaging system, is provided. The device includes at least one test optics component arranged on an object side or...
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