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Patent No. 5970981

Mouthguard made at least partially from an edible candy

A mouthguard includes a U-shaped upper bite plate which removably fits over upper teeth of a person, with the entire upper bite plate being made from a soft, deformable and edible gummi candy.

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Assignee: Zygo Corporation


Location: Middlefield, CT
No. of patents: 324

1                  
NumberTitleIssue Date
8126677Analyzing surface structure using scanning interferometry
A method includes comparing a scanning interferometry signal obtained for a location of a test object to each of multiple model signals corresponding to different model parameters for modeling the test object, wherein for each model signal the comparing includes cal...
02/28/2012
8123593Configuring of lapping and polishing machines
A lapping or polishing machine includes a material having a first finishing surface to process a surface of a work item, a measuring tool to measure a contour of the first finishing surface, and a conditioning tool having a second finishing surface to process the fi...
02/28/2012
8120781Interferometric systems and methods featuring spectral analysis of unevenly sampled data
In certain aspects, interferometry methods are disclosed that include providing one or more interferometry signals for a test object, wherein the interferometry signals correspond to a sequence of optical path difference (OPD) values which are not all equally spaced...
02/21/2012
8107085Methods and systems for interferometric analysis of surfaces and related applications
A method for determining a spatial property of an object includes obtaining a scanning low coherence interference signal from a measurement object that includes two or more interfaces. The scanning low coherence interference signal includes two or more overlapping l...
01/31/2012
8107084Interference microscope with scan motion detection using fringe motion in monitor patterns
An apparatus includes an interferometer configured to generate an interference pattern by combining test light from a test object with reference light reflected from a reference object, the interferometer being further configured to direct at least a first part of a...
01/31/2012
8072611Interferometric analysis of under-resolved features
In certain aspects, disclosed methods include directing test light reflected from an object to form an image of the object on a detector, where the object includes a diffractive structure. The test light at the detector includes both specularly and non-specularly re...
12/06/2011
8045175Equal-path interferometer
An optical assembly for use in an interferometer is provided. The optical assembly includes first and second partially reflective surfaces positioned along an optical axis and oriented at different non-normal angles to the optical axis. The second partially reflecti...
10/25/2011
8004688Scan error correction in low coherence scanning interferometry
In general, in one aspect, the invention features apparatus that includes a broadband scanning interferometry system including interferometer optics for combining test light from a test object with reference light from a reference object to form an interference patt...
08/23/2011
7978338Compound reference interferometer
Interferometry system are disclosed that include a detector sub-system including a monitor detector, interferometer optics for combining test light from a test object with primary reference light from a first reference interface and secondary reference light from a ...
07/12/2011
7978337Interferometer utilizing polarization scanning
In one aspect, the disclosure features methods that include using a microscope to direct light to a test object and to direct the light reflected from the test object to a detector, where the light includes components having orthogonal polarization states, varying a...
07/12/2011
7952724Interferometer with multiple modes of operation for determining characteristics of an object surface
Disclosed is a system including: (i) an interferometer configured to direct test electromagnetic radiation to a test surface and reference electromagnetic radiation to a reference surface and subsequently combine the electromagnetic radiation to form an interference...
05/31/2011
7948639Phase-shifting interferometry in the presence of vibration
A phase-shifting interferometry (PSI) method and corresponding system including: (i) recording an interferogram for each phase in a sequence of phases between test light reflected from a test surface and reference light reflected from a reference surface, the test a...
05/24/2011
7948638Scanning interferometric methods and apparatus for measuring aspheric surfaces and wavefronts
Interferometric scanning method(s) and apparatus for measuring test optics having aspherical surfaces including those with large departures from spherical. A reference wavefront is generated from a known origin along a scanning axis. A test optic is aligned on the s...
05/24/2011
7948637Error compensation in phase shifting interferometry
In certain aspects, disclosed methods include combining reference light reflected from a reference surface with test light reflected from a test surface to form combined light, the test and reference light being derived from a common source, sinusoidally varying a p...
05/24/2011
7948636Interferometer and method for measuring characteristics of optically unresolved surface features
Disclosed is an interferometry analysis method that includes comparing information derivable from multiple interferometry signals corresponding to different surface locations of a test object to information corresponding to multiple models of the test object, wherei...
05/24/2011
7933025Sinusoidal phase shifting interferometry
Disclosed is a method that includes combining a first light beam and at least a second light beam to form a combined light beam, introducing a sinusoidal phase shift with a frequency f between a phase of the first light beam and a phase of the second light beam, rec...
04/26/2011
7924435Apparatus and method for measuring characteristics of surface features
An apparatus is disclosed which includes an interferometry system configured to operate in a first mode to produce a first set of multiple interferometry signals corresponding to different illumination angles of a test object by test light and in a second mode produ...
04/12/2011
7894075Multiple-degree of freedom interferometer with compensation for gas effects
The disclosure features multiple degree-of-freedom interferometers (e.g., non-dispersive interferometers) for monitoring linear and angular (e.g., pitch and/or yaw) displacements of a measurement object with compensation for variations in the optical properties of a...
02/22/2011
7889356Two grating lateral shearing wavefront sensor
Methods include simultaneously diffracting a beam in a first direction and a second direction orthogonal to the first direction to form a once-diffracted beam, where the beam comprises a wavefront shaped by a test object, simultaneously diffracting the once-diffract...
02/15/2011
7889355Interferometry for lateral metrology
A method is disclosed which includes: using a scanning interferometry system, generating a sequence of phase-shifted interferometry images at different scan positions of an object comprising a buried surface, identifying a scan position corresponding to a position o...
02/15/2011
7884947Interferometry for determining characteristics of an object surface, with spatially coherent illumination
Disclosed is an apparatus which includes: an interferometer configured to direct broadband spatially coherent test light to a test surface of a test object over a range of illumination angles and subsequently combine it with reference light to form an interference p...
02/08/2011
7869057Multiple-angle multiple-wavelength interferometer using high-NA imaging and spectral analysis
A method is disclosed including: generating a scanning interferometry signal at each of multiple wavelengths for each of at least one location on a test object; obtaining the scanning interferometry signals at each of the multiple wavelengths for each of at least on...
01/11/2011
7826064Interferometer system for monitoring an object
System for monitoring a position of one or more optical elements in a projection objective (PO) include a plurality of sensors each configured to receive input light and to form output light, each sensor including a first sensor optic and a second sensor optic, the ...
11/02/2010
7826063Compensation of effects of atmospheric perturbations in optical metrology
In general, in a first aspect, the invention features a method that includes using an interferometry assembly to provide three different output beams, each output beam including an interferometric phase related to an optical path difference between a corresponding f...
11/02/2010
7812965Multiple-degree of freedom interferometer with compensation for gas effects
The disclosure features multiple degree-of-freedom interferometers (e.g., non-dispersive interferometers) for monitoring linear and angular (e.g., pitch and/or yaw) displacements of a measurement object with compensation for variations in the optical properties of a...
10/12/2010
7812964Distance measuring interferometer and encoder metrology systems for use in lithography tools
In general, in one aspect, the invention features a system that includes a moveable stage, an interferometer configured to provide information about a first degree of freedom of the stage, an encoder configured to provide information about a second degree of freedom...
10/12/2010
7812963Interferometry method for ellipsometry, reflectometry, and scatterometry measurements, including characterization of thin film structures
A method including: imaging test light emerging from a test object over a range of angles to interfere with reference light on a detector, wherein the test and reference light are derived from a common source; for each of the angles, simultaneously varying an optica...
10/12/2010
7796275Phase-shifting interferometry in the presence of vibration using phase bias
A phase-shifting interferometry (PSI) method and corresponding system including: (i) recording an interferogram for each phase in a sequence of phases between test light reflected from a test surface and reference light reflected from a reference surface, the test a...
09/14/2010
7796273Phase-shifting interferometry in the presence of vibration
A phase-shifting interferometry (PSI) method and corresponding system including: (i) recording an interferogram for each phase in a sequence of phases between test light reflected from a test surface and reference light reflected from a reference surface, the test a...
09/14/2010
7751064Interference objective for annular test surfaces
An apparatus including: an interferometric objective comprising a beam splitter surface configured to separate input light into test light and reference light, and a reference surface configured to receive the reference light and direct it back to the beam splitter ...
07/06/2010
7710580Vibration resistant interferometry
In general, in one aspect, the invention features a method including providing scanning interferometry data for a test object using phase shifting interferometry, the data including intensity values for each of multiple scan positions for different spatial locations...
05/04/2010
7697195Apparatus for reducing wavefront errors in output beams of acousto-optic devices
We disclose acousto-optic modulators that include: (a) an optical element configured to receive an input optical beam that propagates along a first direction; and (b) a transducer extending along the first direction and positioned on one or more surfaces of the opti...
04/13/2010
7684049Interferometer and method for measuring characteristics of optically unresolved surface features
Disclosed is an interferometry analysis method that includes comparing information derivable from multiple interferometry signals corresponding to different surface locations of a test object to information corresponding to multiple models of the test object, wherei...
03/23/2010
7639367Interferometer system for monitoring an object
In general, in one aspect, the invention features a system including a light source, a plurality of interferometers configured to receive light from the light source and to form output light, each interferometer including a first optic and a second optic, the first ...
12/29/2009
7636168Interferometry method and system including spectral decomposition
In general, in one aspect, the disclosure features a method that includes directing measurement light to reflect from a measurement surface and combining the reflected measurement light with reference light, where the measurement light and reference light are derive...
12/22/2009
7636166Interferometer system for monitoring an object
In general, in one aspect, the invention features a system that includes a first object mounted relative to a second object, the first object being moveable with respect to the second object. The system includes a plurality of interferometers each configured to deri...
12/22/2009
7619746Generating model signals for interferometry
A method is disclosed which includes, for each of multiple areas of a test surface on a test object having different reflectivities, using an interferometry system to measure each area in a first mode of operation that measures information about the reflectivity of ...
11/17/2009
7616323Interferometer with multiple modes of operation for determining characteristics of an object surface
Disclosed is a system including: (i) an interferometer configured to direct test electromagnetic radiation to a test surface and reference electromagnetic radiation to a reference surface and subsequently combine the electromagnetic radiation to form an interference...
11/10/2009
7616322Cyclic error compensation in interferometry systems
An interference signal S(t) is provided from interference between two beams directed along different paths. The signal S(t) is indicative of changes in an optical path difference n{tilde over (L)}(t) between the different paths, where n is an average refractive inde...
11/10/2009
7612893Scanning interferometric methods and apparatus for measuring aspheric surfaces and wavefronts
Interferometric scanning method(s) and apparatus for measuring test optics having aspherical surfaces including those with large departures from spherical. A reference wavefront is generated from a known origin along a scanning axis. A test optic is aligned on the s...
11/03/2009
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