Optics: image projectors – Plural
Reexamination Certificate
2011-08-02
2011-08-02
Dowling, William C (Department: 2878)
Optics: image projectors
Plural
C359S210200
Reexamination Certificate
active
07988305
ABSTRACT:
Miniaturization is realized and high-output lights are obtained by optimizing the arrangement of a laser light source unit and a homogenizer.A laser light source unit1has a light emission region for emitting an elliptical laser light. A focusing lens unit2focuses the laser light emitted from the laser light source unit1. A rod integrator4has a rectangular incident surface on luminous flux focused by the focusing lens unit2. A spatial light modulation element7modulates the laser light emitted from the rod integrator4. A projection lens8projects the laser light modulated by the spatial light modulation element7. The incident surface of the rod integrator4has a rectangular shape, and the laser light source unit1is arranged such that a longer axis direction of the light emission region and a longer side direction of the incident surface of the rod integrator are parallel.
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Itoh Tatsuo
Kasazumi Ken'ichi
Mizushima Tetsuro
Yamamoto Kazuhisa
Dowling William C
Howard Ryan
Panasonic Corporation
Wenderoth , Lind & Ponack, L.L.P.
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