Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Reexamination Certificate
2011-06-07
2011-06-07
Cherry, Euncha P (Department: 2872)
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
Reexamination Certificate
active
07957046
ABSTRACT:
In an image forming apparatus according to the invention, an optical beam scanning apparatus of an overillumination scanning optical system includes a laser, a pre-deflection optical system, a polygon mirror, and a post-deflection optical system, wherein the post-deflection optical system includes at least one optical element configured by allowing a resin to flow into a molding die through a gate opening provided in advance to the molding die and then molding the resin into a prescribed shape; and in the optical element, a side corresponding to aside of the gate opening through which the resin flows is provided to a light incidence side where the luminous flux enters into the polygon mirror.
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Cherry Euncha P
Kabushiki Kaisha Toshiba
Toshiba Tec Kabushiki Kaisha
Turocy & Watson LLP
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