Display apparatus

Details Display apparatus Display apparatus

G - Physics

02

B

88/0.15

G02B 27/00 (2006.01) G02B 5/18 (2006.01) G02B 27/01 (2006.01)

Patent

CA 1319547

ABSTRACT OF THE DISCLOSURE: A display apparatus comprises a display, a first diffraction grating for diffracting light from the display, and a second diffraction grating for diffracting diffracted light from the first diffraction grating, so that a half-wavelength-width of the first diffraction grating is set to be larger than that of the second diffraction grating.

601548

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