Image display apparatus and head-mounted display

Details Image display apparatus and head-mounted display Image display apparatus and head-mounted display

2011-03-01

2011-03-01

Dharia, Prabodh M (Department: 2629)

Computer graphics processing and selective visual display system

Image superposition by optical means

C345S006000, C345S009000

Reexamination Certificate

active

07898502

ABSTRACT:
Variation of the wavelength of the light emitted from a light source is reduced by a wavelength variation reduction mechanism. Hence, wavelength deviation of the intensity peak of the light emitted from the light source from the diffraction-efficiency peak of a hologram optical element is reduced. Thus, even when a high-brightness light source is used, the light emitted therefrom can be diffracted with the hologram optical element efficiently. Moreover, the heat generated by the light source is efficiently rejected through the surface of a land portion of a flexible printed circuit, is then, via an insulating layer of the flexible printed circuit, efficiently absorbed through the surface of a heat absorbing member, and is then, via a shield conductor, led out of a casing, so as to be thereby expelled.

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