Focused laser beam measurement system and method of beam locatio

Details Focused laser beam measurement system and method of beam locatio Focused laser beam measurement system and method of beam locatio

1994-09-07

1996-05-28

Westin, Edward P.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

2502012, 21912183, 356123, H01J 314

Patent

active

055213740

ABSTRACT:
A laser beam measurement device comprises a pinhole aperture spaced to one side of a power meter for measuring the power level of the laser beam. The positioning system of the laser system causes the laser beam to move relative to the pinhole aperture in each of the three x, y and z directions of an xyz coordinate system, namely longitudinally, transversely and radially relative to the pinhole aperture, respectively. During each scan, the power meter measures the Gaussian distribution of the power level that occurs when the laser beam passes through the pinhole aperture and moves relative thereto along the scan axis. The coordinate position of the laser beam along each scan axis is identified corresponding to a peak value of the Gaussian distribution, thus deriving a three dimensional reference location corresponding to the point in space at which the focal point of the laser beam is centered on the pinhole aperture.

REFERENCES:
patent: 4945206 (1990-07-01), Arai
patent: 5231264 (1993-07-01), Fujita
patent: 5340962 (1994-08-01), Schmidt et al.
Beam Characterization and Measurement of Propagation Attributes Sasnett et al. SPIE vol. 1414 Laser Beam Diagnostics, pp. 21-32, Jan. 1991.
Laser Power Focal Point, vol. 2, No. 1, p. 1, Mar. 1994.

Affiliated with

Also associated with

Rating

Focused laser beam measurement system and method of beam locatio does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Focused laser beam measurement system and method of beam locatio, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Focused laser beam measurement system and method of beam locatio will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-788417