Intra-viewfinder display device and optical apparatus

Details Intra-viewfinder display device and optical apparatus Intra-viewfinder display device and optical apparatus

1997-02-21

1998-05-19

Perkey, W. B.

Photography

Having camera indicator

Having display in viewfinder

396384, G03B 1302, G03B 1720

Patent

active

057549001

ABSTRACT:
An intra-viewfinder display device includes an optical system having a light splitting surface and arranged to guide light coming from an object to a viewer, and a display element for displaying information by using light of a predetermined wavelength. The information displayed by the display element is transmitted to the viewer by utilizing the light splitting surface. The light splitting surface has respective different spectral characteristics with respect to light of a wavelength band including the predetermined wavelength and light of wavelengths not included in the wavelength band.

REFERENCES:
patent: 4104650 (1978-08-01), Hosoe et al.
patent: 4134661 (1979-01-01), Ishizaka et al.
patent: 4141639 (1979-02-01), Saito
patent: 4294529 (1981-10-01), Sato et al.

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