Thermal imager systems

Details Thermal imager systems Thermal imager systems

1992-02-14

1993-12-28

Arnold, Bruce Y.

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359669, 359837, G02B 2608

Patent

active

052744892

ABSTRACT:
A thermal imager system comprises a scanning system 1 for scanning a required scene 2 and an anamorphic optical system 3 for focusing the scanned scene onto a Sprite detector 4, the optical anamorphic system comprises a pair of optical prisms 17, 19 disposed between a collimating element 15 and a focusing element 21, one or both of the prisms 17, 19 being pivotally mounted whereby the anamorphic ratio and hence the focal length of said optical system 3 may be changed. (FIG. 1).

REFERENCES:
patent: 4580879 (1986-04-01), Wilson
patent: 4828371 (1989-05-01), McCaslin et al.
patent: 4878066 (1989-10-01), Shiraishi
patent: 4948233 (1990-08-01), Maruyama
patent: 5136417 (1992-08-01), Smith

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