Scanning radiation sensor with automatic focus control for optim

Details Scanning radiation sensor with automatic focus control for optim Scanning radiation sensor with automatic focus control for optim

1990-10-19

1992-09-01

Nelms, David C.

Radiant energy

Photocells; circuits and apparatus

Photocell controls its own optical systems

250234, G01J 120

Patent

active

051441225

ABSTRACT:
A scanning radiation sensor (10) automatically focuses a focusable optical system (26) based on the closest distance (C) and the farthest distance (F) of the optical system (26) from a target (12) through means of a focusing controller (44), motor driver (42) and focus motor (40) to obtain an optimum focus for all points along a line between the farthest point (f) and closest point (c).

REFERENCES:
patent: 4577095 (1986-03-01), Watanabe
patent: 4746790 (1988-05-01), Sorimachi

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