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Class 356/121 - LAMP BEAM DIRECTION OR PATTERN


Subclass of Class 356 - Optics: measuring and testing
Definition: Subject matter including structure to indicate or otherwise
No. of patents: 419
Last issue date: 05/22/2012


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NumberTitleIssue Date
8184275Vehicle headlamp monitoring using a network accessible user interface
Vehicle headlamp illumination is monitored and data is communicated to a host control unit. The host control unit implements a network accessible user interface to communicate with a user computer, which can include a graphical display of illumination information as...
05/22/2012
8125628Light baffling apparatus for headlamp sensor
A light baffle arrangement for sensors is used to limit the sensing field of view. Arranging multiple said limited view sensors in a linear array provides a means to accurately locate and analyze the position of a beam pattern along said array axis as in checking ve...
02/28/2012
8072587Machine and method for measuring a characteristic of an optical signal
A machine and methods measure a characteristic of an optical signal incident upon a detector characterized by one or more dynamic response parameters. One method receives an output signal from the detector and compares that output signal and a computationally determ...
12/06/2011
8059266Radiometric Kirk test
Systems and methods for measuring stray light in a lithographic apparatus are described using Radiometric Kirk Test (also known as Scanning SAMOS Test). The Radiometric Kirk Test of the present invention involves a test pattern having an isolated dark area within a ...
11/15/2011
8049874Method for measuring illuminance of lamp
A method for measuring illuminance of a lamp utilizes at least one illuminance meter and a rotary apparatus. The lamp is installed on the rotary apparatus. The lamp emits light and projects onto an irradiation area. A measurement area is defined from within the irra...
11/01/2011
8009280Wavefront characterization and correction
A system, for determining characteristics of a beam wavefront and reshaping such wavefront, including: apparatus for sampling the wavefront curvature and generating outputs; apparatus for reshaping the wavefront; and apparatus for receiving the outputs, proportionin...
08/30/2011
8004663Headlamp aim detection with sensors independent from host control unit
Headlamp alignment is detected using a collection of intelligent, independent sensor units, each of which incorporates a vertical array of sensing elements capable of detecting headlamp illumination. The sensor units are networked together and can be coupled to a ho...
08/23/2011
7907261Optical axis inspection method and optical axis inspection apparatus
An optical axis inspection apparatus is provided with: a camera for capturing a light distribution pattern of a light source device projected on a screen; an image processing device for finding a cutoff line in the light distribution pattern; an acceptance reference...
03/15/2011
7876427Headlamp alignment detection using a network of independent sensor units
Headlamp alignment is detected using a collection of intelligent, independent sensor units, each of which incorporates a vertical array of sensing elements capable of detecting headlamp illumination. The sensor units are networked together and can be coupled to a ho...
01/25/2011
7800745Goniophotometer
A goniophotometer includes two independent towers: a main support tower and an upright mirror tower. A swing arm is connected to the main support tower and can be rotated around a main horizontal axis. An elliptic flat rotation mirror, a first detector and a second ...
09/21/2010
7796245Aberration measurement apparatus and aberration measurement method
An aberration measurement apparatus measures the aberration of an imaging optical system. The apparatus includes an illumination system, a separation member, and a measurement unit. The illumination system supplies the imaging optical system with measurement light u...
09/14/2010
7791717Reflective display device testing system, apparatus, and method
A system for testing a reflective display device includes a testing apparatus and a computer. The testing apparatus includes one or more light emitters, one or more light detectors, an analog-to-digital converter (ADC) module, and a microcontroller unit (MCU). The l...
09/07/2010
7760344Optical sampling apparatus
Provided is an optical sampling apparatus that samples light to be measured having a pulse waveform, including a sampling light output section that outputs a first sampling light and a second sampling light, both having pulse waveforms of a spectrum different from t...
07/20/2010
7612876Systems and methods for characterizing laser beam quality
A measure of the quality of a laser beam is obtained by comparing the power of a theoretical Gaussian beam through a (certain sized area) pinhole to the power of a test beam through a same sized (area) pinhole. The theoretical surrogate Gaussian beam with the same s...
11/03/2009
7492446Active beam catcher
A beam catcher (3) for a light beam (1) includes a photodetector (6) having a plurality of photodiodes (8) which are offset along a line in a defined manner with respect to a reference point (7), an evaluating unit (11) havi...
02/17/2009
7477365Optical spot geometric parameter determination using calibration targets
A method, system and computer program product for determining a geometric parameter of an optical spot of a light beam are disclosed. A method comprises: providing a calibration target, the calibration target including a systematic variation in a parameter; measurin...
01/13/2009
7463347Simulator 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 light incident at the maximum incident angle, the second field being...
12/09/2008
7442909Optical measuring system
Apparatus and methods are described for of measuring amplitude and phase variations in a spatially coherent beam of light. A beam of coherent light is made incident upon a spatial array of phase modulating elements displaying a pixellated first phase distribution. I...
10/28/2008
7440088Methods and devices for measuring a concentrated light beam
Methods and devices are provided for profiling a beam of light that includes a wavelength λ. The beam of light is received. Secondary light is generated at a wavelength λ′ different from wavelength λ by fluorescing a material with the received beam of light. Th...
10/21/2008
7436502Illumination beam measurement
A method of measuring the angular intensity distribution of an illumination beam produced by an illumination system of a lithographic apparatus includes measuring an angular intensity distribution, placing a first optical element above an object plane of the illumin...
10/14/2008
7423739Method of and system for determining the aberration of an imaging system test object and detector for use with the method
For determining aberrations of an optical imaging system (PL), a test object (12,14) comprising at least one delta test feature (10) is imaged either on an aerial scanning detector (110) or in a resist layer (71), which layer is scanned b...
09/09/2008
7414712Large dynamic range Shack-Hartmann wavefront sensor
A wavefront sensor for measuring a wavefront contains an array of lenslets, a detector array, and a mask having a temporally fixed pattern containing one or more opaque regions that are substantially opaque to light from the wavefront. The mask comprises one or more...
08/19/2008
7414759Scanner linearity tester
Linear spot velocity or position variations are measured in a scanning system by a process and apparatus. The process comprises providing at least two radiation detectors that can move in tandem across a scan line, the two radiation detectors being spaced apart by a...
08/19/2008
7408631Device for the range-resolved determination of scattered light, operating method, illumination mask and image-field mask
An illumination mask (10a) for a device for the range-resolved determination of scattered light, having one or more scattered-light measuring structures (11a) which respectively include an inner dark-field zone which defines a minimum sca...
08/05/2008
7405815Systems and methods for characterizing laser beam quality
A measure of the quality of a laser beam is obtained by comparing the power of a theoretical Gaussian beam through a (certain sized area) pinhole to the power of a test beam through a same sized (area) pinhole. The theoretical surrogate Gaussian beam with the same s...
07/29/2008
7397546Systems and methods for reducing detected intensity non-uniformity in a laser beam
A method of increasing the spatial uniformity of the detected intensity of a beam of light from a laser in a system including the laser and a light detector. In one embodiment the method includes the steps of generating a beam of light with the laser; and moving the...
07/08/2008
7390999Differential Shack-Hartmann curvature sensor
A differential Shack-Hartmann curvature sensor for measuring a curvature including principal curvatures and directions of a wavefront. The curvature sensor includes a Shack-Hartmann sensor with an input beam and an optical element to split said input beam into three...
06/24/2008
7368846Microactuator with displacement sensing function and deformable mirror including the microactuator
According to the present invention, a moving element Ai such as an electrostatically driven actuator is displaced by supplying a drive signal thereto. Meanwhile, a displacement sensing section 6 senses its displacement and a calibrating section 15 auto...
05/06/2008
7369721Optical imaging system with optical delay lines
An electromagnetic signal processing system (10) comprises a plurality of optical fiber arrays (11, 12, 13, 14, 15 and 16) each having a cluster of optical fibers with their one ends (40) oriented to receive electromagnetic radiation from...
05/06/2008
7366959Managing method of electrical device, management apparatus, electrical device, communications device, program therefor, and management system of electrical device
A communications processing section of a management apparatus sends a request for malfunction information via the Internet to one or more electrical devices being managed. A database manager of the management apparatus refers to data stored in a database and updates...
04/29/2008
7361291Antistatic composition
Polymer compositions comprising a) a polymer substrate selected from the group consisting of the polyolefins, polyesters, polyamides and polylactic acids and b) a combination of i) at l...
04/22/2008
7352118Optimized ultraviolet reflecting multi-layer coating for energy efficient lamps
A metal halide lamp (10) includes a light-transmissive envelope (12) which encloses a metal halide pool (30) for generating a discharge when spaced apart electrodes (20, 22) within the envelope are supplied with an electric current. A mul...
04/01/2008
7347560Method and/or apparatus for projecting an image
Methods, apparatuses and systems for projecting an image, such as a diffused image, are disclosed herein. ...
03/25/2008
7342701Multiple illumination source exposure apparatus
A system for combining outputs of multiple light sources includes a plurality of light sources, and a rotatable fold mirror oriented at an angle so as to reflect beams from each of the light sources towards the same direction at various times during its rotation. A ...
03/11/2008
7338165Systems and methods for prediction of objective visual acuity based on wavefront measurements
Methods, devices, and systems for predicting an optical acuity measure of an optical system of an eye. An optical acuity measure can be predicted by determining a point spread function based on a wavefront measurement of an eye, convolving a resolution target with t...
03/04/2008
7333903Light management system having networked intelligent luminaire managers with enhanced diagnostics capabilities
A network operation center for a light management system having networked intelligent luminaire managers. A plurality of networked luminaire managers, each collocated with a respective luminaire, monitor the status of their respective luminaires. The luminaire manag...
02/19/2008
7327512Optical waveform monitor apparatus and oscilloscope
A measured optical pulse and a sampling optical pulse having different wavelengths are input to a nonlinear optical effect, that is, (i) a nonlinear optical medium generating four optical wave mixing or three optical wave mixing, and the optical intensity of the wav...
02/05/2008
7327449Exposure apparatus inspection method and exposure apparatus
An inspection method for an exposure apparatus for illuminating a photomask on a first installation member by an illumination optical system, and for projecting an image of a pattern of the photomask onto a substrate on a second installation member through a project...
02/05/2008
7327468Opto-acoustic apparatus with optical heterodyning for measuring solid surfaces and thin films
In an opto-acoustic measuring device for thin films and solid surfaces, the probe beam is split into a first probe beam portion and a second reference beam portion. The splitting of the probe beam is achieved using a phase mask that also splits the excitation beam. ...
02/05/2008
7315358Evaluation apparatus and method of optical parts
An evaluation apparatus of optical parts has a holder having a frame which can hold a lens fixedly and another lens movably, a chart having a first transmission hole group and a second transmission hole group arranged on circumferences of concentric circles, a light...
01/01/2008
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