Lens holder which reduces internal reflections

Details Lens holder which reduces internal reflections Lens holder which reduces internal reflections

1993-06-04

1994-10-04

Groody, James J.

Television

Video display

Projection device

348786, 359614, 359580, 313474, H04N 574

Patent

active

053530705

ABSTRACT:
In a lens-barrel etc. for holding lenses, a thin film composed of a fluororesin compound having a refractive index lower than that of a material constituting the lens-barrel is formed on an inner surface of the lens-barrel, thereby lowering an amount of the reflective light appeared on the inner surface of the lens-barrel.

REFERENCES:
patent: 4004851 (1977-01-01), Negishi et al.
patent: 4729031 (1988-03-01), Saito et al.
patent: 4804883 (1989-02-01), Muller et al.
patent: 5138222 (1992-08-01), Toide et al.
patent: 5181141 (1993-01-01), Sato et al.

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