Collimator for coordinating two optical devices

Details Collimator for coordinating two optical devices Collimator for coordinating two optical devices

1985-03-27

1987-01-27

Henry, Jon W.

Optics: measuring and testing

Range or remote distance finding

With photodetection

350171, 350602, 350622, 356138, G02B 2714, G02B 508

Patent

active

046390820

ABSTRACT:
A collimator for coordinating two optical devices which operate in different wavelength. The collimator regions comprises a source hole formed in a plane mirror. The source hole is illuminated by a source which emits light in two wavelength regions. The source is arranged in the focus of a mirror collimator. The beam which emerges from the collimator after reflection from the mirror forms a first parallel radiation beam having wavelengths in one of the wavelength regions. After passing through a plate with substantially parallel surfaces and a wedge compensator, the beam forms a second parallel radiation beam having wavelengths in the other region. The beams have the same axial spacing as the two optical devices and are made exactly parallel to each other by the wedge compensator.

REFERENCES:
patent: 2573703 (1951-11-01), Gardner
patent: 3302511 (1967-02-01), Baker et al.
patent: 3619069 (1971-11-01), Alexander
patent: 3734627 (1973-05-01), Edwards
patent: 3895854 (1975-07-01), Ziffer
patent: 3914787 (1975-10-01), Sekiguchi
H. L. Gelernter et al., "Dual Spot . . . ", IBM Tech. Disc. Bull., vol. 5, No. 5, Oct. 1962, p. 79.

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