Imaging apparatus and methods utilizing scannable microlaser sou

Details Imaging apparatus and methods utilizing scannable microlaser sou Imaging apparatus and methods utilizing scannable microlaser sou

1990-01-11

1991-07-02

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

362227, G01N 2186

Patent

active

050288024

ABSTRACT:
Apparatus and methods for generating an image of an object utilize a scannable microlaser array to provide a flying spot light source. The microlaser array is scan-energized and imaged onto the object to illuminate the object. Light scattered, reflected, or transmitted from the object is collected and detected, and can be converted to a video-level signal for display on a monitor. The microlaser array can be raster-scanned, scanned in a random access mode, or have at least two laser elements energized simultaneously, to enhance contrast, provide multiplexing, and increase dynamic range. A confocal configuration utilizes a detector array that is scan-read synchronously with the laser excitation pattern.

REFERENCES:
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patent: 4360921 (1982-11-01), Scifres et al.
patent: 4639608 (1987-01-01), Kuroda
patent: 4764005 (1988-08-01), Webb et al.
patent: 4882498 (1989-11-01), Cochran
"Tandem-Scanning Reflective-Light Microscope", Petran et al., Journal of the Optical Society of America, vol. 58, May, 1968, pp. 661-664.
Webb et al., "Confocal Scanning Laser Ophthalmoscope", Applied Optics, vol. 26, Apr. 15, 1987, pp. 1492-1499.
The Handbook of Biological Confocal Microscopy, Pawley, ed., IMR Press, 1989.
Ozberkman, "New-Micro-Lasers Debut", Optical News, Oct. 1989, p. 30.

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