Laser beam monitor and control method

Details Laser beam monitor and control method Laser beam monitor and control method

2005-03-08

2008-09-02

Pyo, Kevin (Department: 2878)

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

C372S029010, C356S338000

Reexamination Certificate

active

07420146

ABSTRACT:
A device and method for monitoring a light beam (e.g., laser beam) without intruding upon the light beam is disclosed. The device comprises a focusing lens which receives scattered light from a reflective or transmitting optical element and directs the scattered light to a photo detector. The photo detector generates one or more electrical signals which are proportional to an intensity distribution of the light beam for analysis by a processor. The analyzed electrical signals are then used to adjust a light beam source accordingly. The device may further comprise a display and printer for visually depicting the light beam characteristics.

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