Color enhancing filter and method of employing a color enhancing

Details Color enhancing filter and method of employing a color enhancing Color enhancing filter and method of employing a color enhancing

1999-10-29

2000-12-12

Manuel, George

Optics: eye examining, vision testing and correcting

Eye examining or testing instrument

Objective type

A61B 300

Patent

active

061588652

ABSTRACT:
A color enhancing filter is disclosed which is especially adapted for use to improve eye vision under all lighting environments. Lighting environments include extreme lighting environments, such as, low level and brightly illuminated light environments. The filter is supported by an adapter ring. It also has a filter element which passes impinging light wavelengths as follows:

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Hurst, Colour, A Handbook of the Theory of Colour, pp. 34-35, 49 (1900).
Kuleshov, et al, Thin-film absorption light filters, Sov. J. Opt. Technol., 46(1), p. 51 (1979).
Rolands, The Underwater Photographer's Handbook, pp. 74-75 (1983).

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