Permeable screen and its manufacturing method

Details Permeable screen and its manufacturing method Permeable screen and its manufacturing method

1994-03-16

1996-12-03

Nelms, David C.

Optical: systems and elements

Single channel simultaneously to or from plural channels

By surface composed of lenticular elements

359456, 359457, 359460, G03B 2156

Patent

active

055814077

ABSTRACT:
A permeable screen possesses superior brightness, high contrast, wide view angle, excellent contrast to external light, superior clearness, and less reflection of external light image. The permeable screen includes a front dispersing panel and a lenticular lens sheet disposed at the incident side of the front dispersing panel and forming plural lens surfaces. The permeable screen also includes a Fresnel lens sheet disposed at the incident side of the lenticular lens sheet and forming plural lens surfaces. The front dispersing panel functions as a screen and also provides mechanical strength. The front dispersing panel also possesses parts for mounting and fixing the lenticular lens sheet and Fresnel lens sheet.

REFERENCES:
patent: 4730897 (1988-03-01), McKechnie et al.
patent: 5066099 (1991-11-01), Yoshida et al.
patent: 5400114 (1995-03-01), Yoshida et al.

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