Image projection device, image projection screen and image...

Details Image projection device, image projection screen and image... Image projection device, image projection screen and image...

2011-03-29

2011-03-29

Luu, Thanh X (Department: 2878)

Optics: image projectors

Structurally related projector and screen

C359S443000

Reexamination Certificate

active

07914154

ABSTRACT:
An image projector according to the present invention includes a first light source that emits visible light and a second light source that emits invisible light and projects the visible light and the invisible light onto a screen. The screen includes a material, at least one of the visible light reflectance, transmittance and absorbance of which changes when irradiated with the invisible light projected. The image projector further includes a modulating section for modulating the intensities of the visible light and invisible light based on an image signal and a control section for controlling the modulating section.

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International Search Report for corresponding Application No. PCT/JP2007/055102 dated Jun. 26, 2007.

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