Laser-based controlled-intensity light source using reflection f

Details Laser-based controlled-intensity light source using reflection f Laser-based controlled-intensity light source using reflection f

1996-01-25

1998-11-10

Bovernick, Rodney B.

Coherent light generators

Particular temperature control

Heat sink

372 43, 372 28, 257 98, 257 81, 385 93, 385 33, 385 35, H01S 304, H01S 318, G02B 636, H01L 3300

Patent

active

058355146

ABSTRACT:
An integrated laser-based light source that generates an output light beam having a controlled intensity. The light source comprises a light sensor, a laser, a convex beam-splitting surface, and a package that includes a header. The light sensor generates an electrical signal representing an intensity of light energy falling on it, and is mounted on the header. The laser has one and only one light-emitting face from which a light beam is radiated as a radiated light beam. The laser is mounted in the package adjacent the light sensor with the light-emitting face substantially parallel to the light-receiving face of the light sensor. The convex beam-splitting surface reflects a fraction of the radiated light beam towards the light sensor as a reflected light beam, and transmits the remainder of the radiated light beam as the output light beam. The convex beam-splitting surface is supported in the radiated light beam by the package.

REFERENCES:
patent: 5247167 (1993-09-01), Bargerhuff et al.
patent: 5542018 (1996-07-01), Kuhara et al.
patent: 5555334 (1996-09-01), Ohnishi et al.

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