Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2009-10-08
2011-12-27
Cherry, Euncha (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
Reexamination Certificate
active
08085455
ABSTRACT:
A coupling optical system couples a light beam emitted from a light source that includes a two-dimensional array of light-emitting elements, including a first optical element having a positive power and a second optical element that has a negative power and receives the light beam passed through the first optical element. An incident surface and an output surface of the second optical element are concave. An absolute value of a paraxial curvature radius of the incident surface is larger than that of the output surface. A scanning optical system focuses the light beam that passed through the coupling optical system and deflected by a deflector on the target surface.
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Cherry Euncha
Dickstein & Shapiro LLP
Ricoh & Company, Ltd.
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