Image receiving apparatus and alignment method for controlling f

Details Image receiving apparatus and alignment method for controlling f Image receiving apparatus and alignment method for controlling f

1991-01-25

1992-08-25

Turner, Samuel A.

Optics: measuring and testing

By alignment in lateral direction

With light detector

250205, G01B 902

Patent

active

051413213

ABSTRACT:
An image receiving apparatus includes a light source for emitting a pulsed light beam, a shifting device for progressively shifting the light beam emitted from the light source, an imaging device for receiving image information related to an object illuminated by the shifted beam from the shifting device as electric signals, an image integrating unit for integrating the electric signals received by the imaging device to generate integrated image information, and a controller for controlling a repetition frequency of the pulsed emission of the light source and a shifting period of the shifting device in synchronization with a timing for receiving image information by the imaging device. The image receiving apparatus of the present invention can be utilized to perform alignment of an object. A method to perform such alignment is also disclosed.

REFERENCES:
patent: 4634876 (1987-01-01), Ayata
patent: 4645347 (1987-02-01), Rioux
patent: 5048967 (1991-09-01), Suzuki et al.
patent: 5053614 (1991-10-01), Yui et al.

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