Optical design of laser scanner to reduce thermal sensitivity

Details Optical design of laser scanner to reduce thermal sensitivity Optical design of laser scanner to reduce thermal sensitivity

1996-06-26

1997-03-11

Phan, James

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359207, 359820, G02B 2608

Patent

active

056107536

ABSTRACT:
An imaging system including a Gaussian light source, such as a laser diode, an image plane, and an optical system located between the light source and the image plane. The optical system has an optical axis, a first principal focus and a second principal focus. The image plane is located at the second principal focus of the optical system. The optical system creates a Gaussian intensity profile on the image plane whose e.sup.-2 intensity diameter on such plane is substantially constant even when the Gaussian light source being imaged by the optical system shifts along the optical axis.

REFERENCES:
patent: 4621890 (1986-11-01), Suzuki et al.
patent: 4818049 (1989-04-01), Assenheim et al.
patent: 4915484 (1990-04-01), Yamamoto
patent: 4917483 (1990-04-01), Nakao
patent: 4948221 (1990-08-01), Yates
patent: 4998790 (1991-03-01), Iizuka et al.

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