Laser system

Details Laser system Laser system

2007-12-11

2007-12-11

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Infrared responsive

Reexamination Certificate

active

10864696

ABSTRACT:
An infra-red measurement device is disclosed having at least two laser emitters (2) which between them define a sighting area (7,7′,7″). In one embodiment of the invention, two lasers are provided and these are each preferably split into a number of beams by means of, for example, a diffraction grating lens (4). The fact that there are two laser emitting devices, means that effectively twice the power can be utilised since the limit is per laser emitting device, and thus twice the brightness of a conventional device attained. In another embodiment of the invention, four laser emitters (2) are employed and the beams (6) can be split by a diffraction grating as before. The laser emitters in the device can be operated simultaneously, sequentially, or can be pulsed. Having greater brightness than conventional devices, the detectors of the invention are excellent for use in dark or smoky conditions, for example for obtaining the temperatures of car engines, furnaces and the like.

REFERENCES:
patent: 2002/0015434 (2002-02-01), Hollander et al.
patent: 2003/0128735 (2003-07-01), Hollander et al.
patent: 2004/0196888 (2004-10-01), Musbach et al.

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