Optical: systems and elements – Deflection using a moving element
Patent
1998-07-21
2000-09-05
Phan, James
Optical: systems and elements
Deflection using a moving element
359 17, 359212, 359215, 359216, 359566, 359574, G02B 2608
Patent
active
061151645
ABSTRACT:
Disclosed is a scanning optical system including a light source that emits a light beam, a deflector that deflects a light beam emitted from the light source to scan in a predetermined direction, an scanning lens system that allows the light beam deflected by the deflector to pass through and converges the light beam on a surface to be scanned, and a diffracting element having a diffracting surface that functions to correct a chromatic aberration of the scanning lens. The diffracting element is arranged between the deflector and the surface to be scanned.
REFERENCES:
patent: 5629799 (1997-05-01), Maruyama et al.
patent: 5838480 (1998-11-01), McIntyre et al.
Asahi Kogaku Kogyo Kabushiki Kaisha
Phan James
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