|
Match
|
Document |
Document Title |
|
|
7166842 |
Gas sensor arrangement with reduced settling time
A gas sensor arrangement for detecting the presence or concentration of an analyte in a measuring gas comprises a gas measuring chamber having an inlet for receiving the measuring gas. A measuring...
|
|
|
7073715 |
Interface for interfacing an imaging engine to an optical code reader
An interface assembly is provided for interfacing an imaging engine having an adjustable lens assembly to a circuitry assembly of an optical code reader system, the interface assembly includes a...
|
|
|
7018094 |
Material analysis
In thermography apparatus, a lamp 102 is modulated sinusoidally and a camera 106 captures thermal images at the modulated frequency, but delayed by an adjustable preset delay. A signal delay...
|
|
|
6723992 |
Detection arrangement provided with offset compensation
Offset arrangement for an infrared detector array, which continuously adjusts the offset in a recursive process. With the aid of a displacement device the image observed by the detector array is...
|
|
|
6605806 |
System and method for generating signals representing infrared radiation
A system and method for generating signals representing infrared radiation include the capability to provide a reference scene and an actual scene to a plurality of infrared detector elements...
|
|
|
6586738 |
Electromagnetic radiation detectors having a micromachined electrostatic chopper device
The present invention provides for an improved electromagnetic radiation detector having a micromachined electrostatic chopping device. The MEMS flexible film chopping device provides reliability,...
|
|
|
6549801 |
Phase-resolved optical coherence tomography and optical doppler tomography for imaging fluid flow in tissue with fast scanning speed and high velocity sensitivity
The invention is a fast-scanning ODT system that uses phase information derived from a Hilbert transformation to increase the sensitivity of flow velocity measurements while maintaining high...
|
|
|
6414313 |
Multiple numerical aperture electron beam projection lithography system
A beam-limiting aperture truncates selected portions of a charged particle beam illuminating portions such as subfields of a patterned reticle of a charged particle beam projection lithography tool...
|
|
|
6191420 |
Infrared sensor
In an infrared sensor including a compensating element and an infrared sensitive element, the main bodies of which consist of temperature-sensing layers of germanium and are supported on a...
|
|
|
5965890 |
Solid state infrared chopper
A chopper is provided of solid state construction. Two layers are provided adjacent one another with the area between the layers defining one or more diffusion zones. One or more voltage potentials...
|
|
|
5952661 |
Chopper for thermal imaging system and method
Thermal imaging chopper (20) may comprise a disk (40) formed of a thermally transmitting material. The disk (40) may include a structure (44) operable to randomly scatter thermal radiation of the...
|
|
|
5923036 |
Spatially-multiplexed imaging microscope
An infrared imaging microscope uses spatial encoding to divide an sample being examined into a plurality of pixel regions. The spatial encoding is provided by a digitally controlled mask, which is...
|
|
|
5763882 |
Low cost night vision camera
A low cost infrared camera (1) for night vision. The camera (1) is disposed within a housing (2) having an infrared transmissive window (6) disposed at an input aperture (5) thereof. A compact...
|
|
|
5486698 |
Thermal imaging system with integrated thermal chopper
A thermal imaging system (10) contains a focal plane array (14) including a plurality of thermal sensors (50) mounted on a substrate (52). The focal plane array (14) generates both a reference...
|
|
|
5317156 |
Diagnostic tests using near-infrared laser absorption spectroscopy
RF modulation spectroscopy of a near infrared laser diode source is used to determine the amount of a target substance in a breath sample. In this type of modulation the laser output is modulated...
|
|
|
5159200 |
Detector for sensing hot spots and fires in a region
A detector for detecting hot spots that includes an infrared sensor and a scanning component. The infrared sensor is fixedly mounted on a housing and is oriented to have a field of view of at least...
|
|
|
5086220 |
Radiation imaging fiber optic temperature distribution monitor
A monitor for measuring the temperature distribution of a product (12) including a plurality of ball lenses (14) lying in a lenticular array (18) across the product (12). A signal processor (22) is...
|
|
|
5077477 |
Method and apparatus for detecting pits in fruit
A method and apparatus for the detection of pits and abnormalities in various stone fruits. The apparatus transmits a first plurality of beams of light (18) across inspection zone (14) and...
|
|
|
5051591 |
Reflective chopper for infrared imaging systems
A chopper, in an infrared imaging system, is used to scatter infrared radiation from a viewed scene. This scattered radiation is detected with an infrared detector and used to produce a reference...
|
|
|
5021660 |
Pyroelectric infrared detector and driving method therefor
In a pyroelectric infrared detector, there is provided a member having a slit positioned in front of an array of pyroelectric elements, which interrupts an infrared image which is incident on the...
|
|
|
4954718 |
Circuit arrangement for driving a pulse-modulated infrared-radiation source
A circuit arrangement for providing a pulse modulated power feed to an infrared radiation source is disclosed. The radiation of the radiation source is detectable by a receiver and the circuit...
|
|
|
4948964 |
Artificial target for automatic gain normalization
The disclosure relates to a system for on-line normalization of the outputs of all of the detector elements of an infrared detector wherein, during the retrace period of the scanning mirror,...
|
|
|
4910404 |
CT computed tomograph
A CT computed tomograph comprises a scanner (51) which surrounds a living body of a person to be examined. Ultrashort light pulses of the ith wavelength are applied to the living body from a sample...
|
|
|
4873433 |
Electromagnetic radiation detecting device with hollow semicylindrical chopper
An electromagnetic radiation detecting device comprises at least one radion detector for detecting electromagnetic radiation from a hemisphere, a radiation-transparent protective hood covering the...
|
|
|
4849634 |
Modulation device
The disclosure is directed to a modulation device for a radiation detector device picking up an image field. The modulation device comprises a modulation disk disposed in the image field plane and...
|
|
|
4775234 |
Spectroscopic measurement system
A spectroscopic measurement system comprises at least two kinds of diffraction gratings whose grating surfaces are in line, an exchange device for exchanging the positions of the two kinds of...
|
|
|
4719352 |
Apparatus for intermitting beam of light for use in gas analyzer
An apparatus for intermitting beams of light for use in a gas analyzer in which a rotary shaft of a chopper is supported by first and second ball bearings. An outside ring of the first ball bearing...
|
|
|
4634870 |
Thermal image dynamic range expander
A gas cell array absorbs infrared energy radiated by a viewed scene. A la interferometer has its resultant intensity changed by the cell's changing length. This is monitored by a vidicon tube that...
|
|
|
4602159 |
Infrared detector
In an infrared detector, a shutter is employed in an elastic wave element of a feedback type of oscillator containing the elastic element so that the elastic element receives infrared light...
|
|
|
4471222 |
Bifunctional optical sensing system
A bifunctional sensor is disclosed for an optical seeking system which utzes a single focussing lens arrangement for focussing light of two distinct wavelength ranges. A first detector for...
|
|
|
4309609 |
Heat scaling of traveling articles
Local heating is employed to scale a workpiece, the heat dissipating from the heated zones after such scaling.
|
|
|
4300049 |
Dynamically standardized radiant energy method and apparatus for plural channel gain independent material property measurement
A method and apparatus for determining a property of a material (10) utilizes a source (28) of measuring radiation and reference radiation, a measuring information channel including a detector (30)...
|
|
|
4262198 |
Broadband optical radiation detector
A method and apparatus for detecting optical radiation by optically monitoring temperature changes in a microvolume caused by absorption of optical radiation to be detected. More specifically, a...
|
|
|
4253769 |
Stark effect spectrophone for continuous absorption spectra monitoring
A Stark effect spectrophone is provided using a pulsed or continuous wave laser (33) having a beam with one or more absorption lines of a constituent of an unknown gas. The laser beam is directed...
|
|
|
4063095 |
Balancing radiometer
A balancing radiometer for measuring the intensity of incident electromagnetic radiation comprises: a pair of identical sensors, each including a thermally conductive substrate, at least one...
|
|
|
4048500 |
Infrared background suppression
A system for eliminating background signals in chopped infrared measuring systems employs operational amplifier principles for subtracting a reference signal of proper amplitude, phase and...
|
|
|
3916195 |
Non-dispersive multiple gas analyzer
A gas analyzer for measuring separately the quantities of two or more gas species present in a sample. The analyzer uses a rotating gas cell having a pair of chambers which are alternately inserted...
|
|
|
3898462 |
Infrared gas analyzer
An improved infrared gas analyzer is provided which permits detection and accurate measurement of each of a plurality of components in a sample gas despite any interfering absorption bands of those...
|
|
|
3889117 |
TAPERED DETECTOR SCANNING ARRAY SYSTEM
The invention is an infrared radiation detector assembly utilizing sensing elements of unique design. The energy sensors are placed at the image plane of the optics and are made to sequentially...
|
|
|
3862423 |
SCANNING THERMOGRAPHY
A fixed housing carries an infrared energy sensor for receiving energy collected by a set of Newtonian optics. Energy is directed to the Newtonian optics by a scanning mirror mounted for continuous...
|
|
|
3860344 |
MULTI-COMPONENT INFRARED ANALYZER
An improved multi-component non-dispersive infrared analyzer for selectively analyzing for a plurality of gases of interest in a gaseous mixture utilizes a simplified optical system having an...
|
|
|
3855474 |
NON-SCANNING OBJECT POSITION INDICATING RADIOMETRIC DEVICE INDEPENDENT OF OBJECT IRRADIANCE VARIATIONS
A radiometric non-scanning extended-source position-indicating device is provided for determining the position of the edge of an extended source which is independent of the irradiance of the source...
|
|
|
3808436 |
APPARATUS FOR GAS ANALYSES
Apparatus for performing multiple gas analyses simultaneously in which a plurality of optical gas analysis assemblies are mounted in a frame housing in a manner to be operative with a single...
|
|
|
3805061 |
OBJECT DETECTING APPARATUS
The invention is a system for detecting intrusion of a predetermined area by an object and for operating or terminating operation of an associated apparatus when such intrusion occurs. By way of...
|
|
|
3795811 |
METHOD AND MEANS FOR EQUALIZING THE RESPONSE OF SIGNAL CHANNELS IN A MULTIPLE CHANNEL IMPROVED SYSTEM
Automatic responsivity control in a multiple channel infrared system is realized by means of reference signals derived from a modulated light source. The light source illuminates both the infrared...
|
|
|
3793518 |
OPTICAL SCANNING SYSTEM WITH A CROSSED SCANNING PATTERN
An optical scanning system for horizon scanners, and the like, which provides a dual-lobe crossed scanning pattern. A detector arrangement receiving radiation from the scanner provides sufficient...
|
|
|
3675019 |
APPARATUS FOR MEASURING THE AMOUNT OF A SUBSTANCE THAT IS ASSOCIATED WITH A BASE MATERIAL
A moisture gauge for paper material includes an infrared source and two detectors one of which is responsive to a wavelength of 1.94 microns which is sensitive to moisture in the paper; the other...
|
|
|
3629585 |
IMMERSED BOLOMETER USING THIN FILM THERMISTORS
Differential, immersed, thermistor bolometer formed by a planoconvex, transparent lens-support and two thermistors, one active and one compensation element, both deposited on the flat face of said...
|
|
|
3619612 |
MONITORING DEVICE FOR ROTATING SYSTEMS
A system for measuring physical properties of rotating devices and transmitting the measurements from the rotating member to an unconnected stationary circuit by means of electromagnetic waves...
|
|
|
3612878 |
METHOD AND APPARATUS FOR MEASURING THE RADIANT ENERGY REFLECTANCE OF MATERIALS
To provide a method and apparatus for measuring reflectances independent of the sample temperature, the sample is alternately irradiated by hot and cold radiation which is picked up by one or more...
|