Black light illuminated analog watch

Details Black light illuminated analog watch Black light illuminated analog watch

1994-12-22

1997-02-18

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With auxiliary illumination for display

368226, 368227, G04B 1930

Patent

active

056047169

ABSTRACT:
A black light illuminated analog watch that contains an ultraviolet light emitting tube. This tube is contained in the inner periphery of a conventional analog watch case. Various components of the watch, including the watch hands, the dial, the watch glass, and others, are coated with a visible light emitting phosphor that is energized by the tube. The phosphors may be selected to glow with different colors. The watch contains circuitry needed to power the tube.

REFERENCES:
patent: 1994950 (1935-03-01), Hoffritz
patent: 2680813 (1954-06-01), Doyle
patent: 2823512 (1958-02-01), Le Van
patent: 3452538 (1965-07-01), Frey
patent: 3576099 (1971-04-01), Walton
patent: 3722206 (1973-05-01), Berget
patent: 3736742 (1973-06-01), Mabuchi et al.
patent: 3748456 (1973-07-01), Brien
patent: 3841083 (1974-10-01), Berget
patent: 3851460 (1974-12-01), Piquerez
patent: 4705407 (1987-11-01), Brien
patent: 4775964 (1988-10-01), Alessio et al.

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