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RE40102 |
Electro-optical scanner having stationary, multi-surface mirror having surfaces with aplanar profiles
An optical scanner for reading indicia having areas of different light reflectivity, such as bar code symbols includes a stationary, multi-surface, fold mirror having a first surface of a first...
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7254946 |
Thermodilution catheter having a safe, flexible heating element
A thermodilution catheter having a heating filament which is fabricated so as to be thin and flexible enough to avoid contact with the patient's blood. The heating filament is either inserted in a...
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6948662 |
Two-dimensional optical code scanner with scanning pattern having region of greater apparent brightness for assisting alignment of scanning pattern
An alignment indication is provided in an optical scanner for reading a two-dimensional optical code by varying the scanning beam to provide a region of apparent greater brightness. In the case of...
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6834805 |
Optical scanner with segmented collection mirror
A multiple working range scanner includes a collection mirror which is segmented, with each segment having differing optical properties, such as focal length, optical axis, and so on. Differing...
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6819781 |
Method and apparatus for optical sensor system and optical interface circuit
An optical sensor system for validating documents transports a document under test between a light source and an optical interface circuit. A photodetector within the optical interface circuit...
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EP0806018B1 |
OPTICAL INTERFACE CIRCUIT AND METHOD FOR OPTICAL SENSOR SYSTEM
Abstract not available for EP0806018 Abstract of corresponding document: WO9623274 An optical sensor system (1) for validating documents (40) transports a document under test between a light...
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6387052 |
Thermodilution catheter having a safe, flexible heating element
A thermodilution catheter having a heating filament which is fabricated so as to be thin and flexible enough to avoid contact with the patient's blood. The heating filament is either inserted in a...
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6382793 |
Method and apparatus for measuring a wavefront
Embodiments of the present invention provide method and apparatus for measuring a wavefront of a beam of radiation. In particular, one embodiment of the present invention is an apparatus for...
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6382513 |
Optical scanner with segmented collection mirror
A multiple working range scanner includes a collection mirror which is segmented, with each segment having differing optical properties, such as focal length, optical axis, and so on. Differing...
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6355001 |
Thermodilution catheter method using a safe, flexible heating element
A thermodilution catheter having a heating filament which is fabricated so as to be thin and flexible enough to avoid contact with the patient's blood. The heating filament is either inserted in a...
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6220514 |
Electro-optical scanner having stationary, multi-surface mirror having surfaces with aplanar profiles
An optical scanner for reading indicia having areas of different light reflectivity, such as bar code symbols includes a stationary, multi-surface, fold mirror having a first surface of a first...
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6195164 |
Systems and methods for calibrating laser ablations
Improved systems, methods, and apparatus for calibrating a laser ablation system by measuring the optical power and shape of a test surface that has been ablated by energy delivered from a laser....
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6190011 |
Ophthalmic apparatus and a method for storing opthalmic information therefor
An ophthalmic apparatus comprising a detecting device for detecting information of an eye to be examined, a first memory which is capable of storing a plurality of calibration information which is...
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6070710 |
Photoelectric measurement method and apparatus and banknote validation
A photoelectric measurement is made by charging (or discharging) a capacitor at a charge rate dependent on the intensity of the light received by a sensor. The time taken for the charge level to...
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6029893 |
Optical scanner having a reflected light collector including holographic optical elements
An optical scanner such as a bar code scanner has a window comprising a holographic optical element through which both the outgoing scanning beam and the returned reflective light passes. The...
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5939831 |
Methods and apparatus for pre-stabilized plasma generation for microwave clean applications
The present invention provides systems, methods and apparatus for high temperature (at least about 500-800° C.) processing of semiconductor wafers. The systems, methods and apparatus of the...
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5889883 |
Method and apparatus for optical sensor system and optical interface circuit
An optical sensor system for validating documents transports a document under test between a light source and an optical interface circuit. A photodetector within the optical interface circuit...
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5859417 |
Optical scanners having dual surface optical elements for dual working ranges
An optical scanner such as a bar code scanner includes a segmented fold mirror, the individual sections of which have different profiles. By directing the scanning laser beam across the fold...
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5857976 |
Thermodilution catheter having a safe, flexible heating element
A thermodilution catheter having a heating filament which is fabricated so as to be thin and flexible enough to avoid contact with the patient's blood. The heating filament is either inserted in a...
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5807269 |
Thermodilution catheter having a safe, flexible heating element
A thermodilution catheter having a heating filament which is fabricated so as to be thin and flexible enough to avoid contact with the patient's blood. The heating filament is either inserted in a...
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5793468 |
Automated hand-held keratometer
An automated portable keratometer includes a hand held housing and is battery powered. A projection system projects collimated light sources at equal converging angles to an optical axis which...
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5742038 |
Beam shaping for optical scanners
An optical scanner such as a bar code scanner includes a laser diode to create the scanning laser beam. Laser diodes are characteristically astigmatic, and when passed through a rotationally...
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5720293 |
Diagnostic catheter with memory
A catheter assembly having a catheter (100) with at least one transducer (110) associated therewith for directly measuring physiological parameters of a patient or measuring an amount of a...
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5621203 |
Method and apparatus for reading two-dimensional bar code symbols with an elongated laser line
A plurality of the areas of different light reflectivity of a bar code symbol, or the like, are simultaneously illuminated, using, e.g., a beam of laser light that has an elongated cross-section....
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5588438 |
System and method for controlling the temperature of a catheter-mounted heater
A system for keeping the surface temperature of an electric resistance-type heater element in a thermodilution catheter within safe physiological limits includes, in the preferred embodiment, a...
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5585873 |
Automated hand-held keratometer
An automated portable keratometer includes a hand held housing and is battery powered. A projection system projects collimated light sources at equal converging angles to an optical axis which...
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5504315 |
Means and method for non-contact bar code label verification
A portable, conveniently usable, and inexpensive non-contact bar code verifier permits testing of bar code labels at some arbitrary but constant distance from the verifier. Means are provided for...
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5428414 |
Apparatus for measuring the refractive power of an optical system
A compact, low-cost apparatus for measuring the refractive index of an eye utilizes a chopper which forms and scans two orthogonal fringes. In a light-receiving unit, at least three light-receiving...
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5408311 |
Method for measuring a refracting power of an optical system and its apparatus
A method and apparatus for measuring a refracting power of an optical system to be inspected. A beam source generates a luminous flux which passes through the optical system to be inspected. A...
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EP0418509B1 |
Calibration of a lightwave component analyzer for testing optical devices
Abstract of EP0418509 A lightwave component analyzer comprising at least an internal optical receiver and preferably also comprising an internal optical source which are selectively connectable by...
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EP0383158B1 |
Lightwave component analyzer
Abstract of EP0383158 A lightwave component analyzer comprising at least an internal optical receiver and preferably also comprising an internal optical source which are selectively connectable by...
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5218190 |
Means and method for non-contact bar code label verification
A portable, conveniently usable, and inexpensive non-contact bar code verifier permits testing of bar code labels at some arbitrary but constant distance from the verifier. Means are provided for...
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5175594 |
Lensmeter with correction for refractive index and spherical aberration
In an automated lensmeter, provision is made for estimating dispersion when high index glasses are utilized with lenses having relatively large diopter prescriptions and for eliminating error due...
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5041997 |
Lightwave component analyzer
A lightwave component analyzer comprising at least an internal optical receiver and preferably also comprising an internal optical source which are selectively connectable by switches configurable...
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5016203 |
Method of optical density correction
Values of measured optical density are corrected by measuring a high and a low density which are known as standard densities to obtain their measured value by an optical densitometer subjected to a...
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EP0418509A2 |
Calibration of a lightwave component analyzer for testing optical devices.
A lightwave component analyzer comprising at least an internal optical receiver and preferably also comprising an internal optical source which are selectively connectable by switches configurable...
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EP0383158A2 |
Lightwave component analyzer.
A lightwave component analyzer comprising at least an internal optical receiver and preferably also comprising an internal optical source which are selectively connectable by switches configurable...
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4866644 |
Optical instrument calibration system
In a calibration system for optical instruments of the type which make measurements at incrementally spaced wavelengths throughout a spectrum, a plurality of standard samples are measured by a...
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4420228 |
Method and apparatus for analysis of corneal shape
An analysis of the corneal shape through the combination of several keratometer measurements is disclosed. The eye is preferably scanned to a nasal angular position, a central angular position and...
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4407572 |
Keratometer
A keratometer is disclosed for remotely measuring corneal curvature in at least sphere, cylinder, and axis. Assuming the eye is precisely positioned from measurement, light sources are overlapped...
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