Beam converting apparatus with a parallel light beam input and o

Details Beam converting apparatus with a parallel light beam input and o Beam converting apparatus with a parallel light beam input and o

1990-05-24

1991-04-16

Henry, Jon W.

Radiant energy

Ionic separation or analysis

Static field-type ion path-bending selecting means

350421, 350445, 350447, 2502015, 369 4423, G02B 504, G02B 1310, G11B 7135

Patent

active

050077139

ABSTRACT:
The present invention presents a beam converting apparatus which comprises a semiconductor laser element,
means for converting the laser beam from the semiconductor laser element into a parallel beam, and
a prism possessing a first plane for receiving the parallel beam and a second plane for fully reflecting so that the beam entering from the first plane may be emitted from the first plane, wherein the apex angle of the first plane and second plane is defined so that the sum of the incidence angle (.theta.1) to the normal of the first plane and the exit angle (.theta.2) to the normal of the first plane of the beam fully reflected from the second plane emitted from the first plane, (.theta.1+.theta.2), may be about 90 degrees.

REFERENCES:
patent: 4358200 (1982-11-01), Heemskerk et al.
patent: 4759616 (1988-07-01), Marchant
patent: 4929067 (1990-05-01), Sander

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