Imaging system with confocally self-detecting laser

Details Imaging system with confocally self-detecting laser Imaging system with confocally self-detecting laser

1994-10-28

1996-10-08

Gonzalez, Frank

Optics: measuring and testing

Of light reflection

356447, G01N 2147, G01N 2155

Patent

active

055637108

ABSTRACT:
The invention relates to a confocal laser imaging system and method. The system includes a laser source, a beam splitter, focusing elements, and a photosensitive detector. The laser source projects a laser beam along a first optical path at an object to be imaged, and modulates the intensity of the projected laser beam in response to light reflected from the object. A beam splitter directs a portion of the projected laser beam onto a photodetector. The photodetector monitors the intensity of laser output. The laser source can be an electrically scannable array, with a lens or objective assembly for focusing light generated by the array onto the object of interest. As the array is energized, its laser beams scan over the object, and light reflected at each point is returned by the lens to the element of the array from which it originated. A single photosensitive detector element can generate an intensity-representative signal for all lasers of the array. The intensity-representative signal from the photosensitive detector can be processed to provide an image of the object of interest.

REFERENCES:
patent: 5028802 (1991-07-01), Webb et al.
Tkach, R. W. et al., "Regimes of Feedback Effects in 1.5-.mu.m Distributed Feedback Lasers", J. Lightwave Tech., vol. LT-4, pp. 232-238 (Nov. 1986).
Chung, Y. C. et al., "Spectral Characteristics of Vertical-Cavity Surface-Emitting Lasers with External Optical Feedback", IEEE Photonics Technology Letters, vol. 3, pp. 597-599 (Jul. 1991).
Juskaitis, R. et al., "Fibre-Optic Based Confocal Scanning Microscopy with Semiconductor Laser Excitation and Detection", Electronics Letters, vol. 28, pp. 986-988 (May 1992).
Juskaitis, R. et al., "Imaging in reciprocal fibre-optic based confocal scanning microscopes", Optics Communications 92 North-Holland, vol. 92, pp. 315-325 (Sep. 1992).
Juskaitis, R. et al., "Fibre-optic based confocal microscopy using laser detection", Optics Communications 99 North-Holland, vol. 99, pp. 105-113 (May 1993).
Juskaitis, R. et al., "Spatial filtering by laser detection in confocal microscopy", Optics Letters, vol. 18, pp. 1135-1137 (Jul. 1993).
Juskaitis, R. et al., "Semiconductor laser confocal microscopy", Applied Optics, vol. 33, pp. 578-584 (Feb. 1994).

Affiliated with

Also associated with

Rating

Imaging system with confocally self-detecting laser does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Imaging system with confocally self-detecting laser, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Imaging system with confocally self-detecting laser will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-61289