Laser power and energy meter
AssigneeAgency of Industrial Science & Technology, Ministry of International Trade
InventorsTakemi Inoue, Ichiro Yokoshima
Life of this patent
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Abstract
A laser power and energy meter has a target surface provided with at least one pin hole for passing a small portion of the laser beam impinging thereon and further has a light detector positioned in the path of the laser light passing through the pin hole. The target surface is moved horizontally and vertically to cause the laser beam to scan the target surface and the center of the laser beam is aligned with the center of the target surface.
Claims7
A laser power and energy meter for measuring the power and energy of a laser beam incident on a target surface of a thermal type laser output sensor, comprising:
- guiding means provided on said target surface for guiding a cross-sectional portion of the laser beam through said target surface, and
- detector means for receiving said cross-sectional portion of the laser beam and for outputting information which causes said target surface to be positioned such that the center of the laser beam is aligned with the center of the target surface.
Dependencies are inferred from the claim text.