Optical: systems and elements – Deflection using a moving element
Reexamination Certificate
2005-01-25
2005-01-25
Phan, James (Department: 2872)
Optical: systems and elements
Deflection using a moving element
C359S212100, C359S216100
Reexamination Certificate
active
06847472
ABSTRACT:
A coupling lens couples a light flux from a light source to form a parallel light flux, a convergent light flux, or a divergent light flux. An optical deflector includes a deflective reflection surface, which deflects the light flux from the coupling lens at a uniform angular velocity. A scanning image-formation optical system converges the deflected light flux received from the optical deflector on a surface to be scanned to form a beam spot. The device scans the surface to be scanned with the beam spot at a uniform velocity. A depth increasing component, increases the depth of focus determined by the entire optical system of the device, on the optical path between the light source and the deflective reflection surface.
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Greenberg & Traurig, LLP
Manak Joseph M.
Phan James
Rzucidlo Eugene C.
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