Multi-beam optical system

Details Multi-beam optical system Multi-beam optical system

1991-02-26

1992-10-20

Hannaher, Constantine

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359217, 359629, 250236, 346108, G02B 2610

Patent

active

051575337

ABSTRACT:
A multi-beam optical system is provided with reflecting mirrors and separating mirrors on optical paths of light beams for each color so that the difference of the numbers of reflections of the scanned light beams for the respective colors when they penetrate through the lens and reach the photosensitive drum can be the same or an even number. The ference of the number of reflections of the scanned light beams for the respective color can become an even number and the scanning lines are distorted in the same direction by the lens, and are thus not liable to lose a parallel relation between the line images.

REFERENCES:
patent: 3794407 (1974-02-01), Nishimura
patent: 4941003 (1940-07-01), Takade et al.
patent: 5068677 (1991-11-01), Matsuura et al.

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