Telecentric image forming system with a row camera

Details Telecentric image forming system with a row camera Telecentric image forming system with a row camera

1988-03-02

1989-07-25

Arnold, Bruce Y.

Radiant energy

Photocells; circuits and apparatus

Optical or pre-photocell system

358214, H01J 4014

Patent

active

048516988

ABSTRACT:
A telecentric image forming system for a linear zone on the surface of an object comprises a diode row camera with a telecentric imaging system at the object side. In the present embodiment the pupil of the normal, non-telecentric, camera objective (15) is arranged in the focal plane of a spherical concave mirror strip (13) which lies parallel to the direction of the diode row (16). Furthermore, the concave mirror strip (13) and the camera objective (15) jointly form the image of the linear zone on the diode row (16). With this arrangement relatively long linear zones can be illuminated without the need to provide a telecentric camera objective with a diameter substantially equal to that of the length of the zone.

REFERENCES:
patent: 3892468 (1975-07-01), Duguay
patent: 4116527 (1978-09-01), Sick
patent: 4165149 (1979-08-01), Suzki et al.
patent: 4199219 (1980-04-01), Suzki et al.
patent: 4280142 (1981-07-01), Stemme et al.

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