Illumination – Light source and modifier – Plural serial lens elements or components
Reexamination Certificate
2008-10-21
2010-11-30
Truong, Bao Q (Department: 2875)
Illumination
Light source and modifier
Plural serial lens elements or components
C359S015000, C385S031000
Reexamination Certificate
active
07841745
ABSTRACT:
An image display apparatus includes an image forming device having pixels; a collimating optical system collimating light from the image forming device; and an optical device receiving, guiding, and outputting the collimated light as directional rays in different directions. The optical device includes a light-guiding plate; a first optical member reflecting or diffracting the light so as to totally reflect the light inside the light-guiding plate; and a second optical member causing the propagated light to emerge from the light-guiding plate. When a light ray emitted from a pixel located farthest from the center of the image forming device and a light ray emitted from a pixel located at the center of the image forming device pass through a front nodal point of the collimating optical system and are respectively incident on the collimating optical system and the light-guiding plate at angles θ1and θ2, θ2>θ1is satisfied.
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K&L Gates LLP
Sony Corporation
Truong Bao Q
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