Light beam clock

Details Light beam clock Light beam clock

1981-12-03

1984-07-24

Miska, Vit W.

Horology: time measuring systems or devices

Chronological

With mechanical or electromechanical driven display

G04B 1900

Patent

active

044615817

ABSTRACT:
A light beam clock including a clock drive motor including a first member rotatable at the speed of one revolution per hour and a second member rotatable at the speed of one-twelfth revolution per hour; light source means; a circumferential portion; a beam mechanism including a first optical device mounted with the first member for directing light from the light source means in a first radial beam to form a first spot of light representing minutes on the circumferential portion, and a second optical device mounted with the second member for directing light from the light source means in a second radial beam to form a second spot of light for representing hours on the circumferential portion.

REFERENCES:
patent: 2009209 (1935-07-01), Scantlebury
patent: 2290278 (1942-07-01), Failla
patent: 2534877 (1950-12-01), Owen
patent: 3490226 (1970-01-01), Anderson et al.
patent: 3651634 (1972-03-01), Cooper
patent: 4034549 (1977-07-01), Danley et al.
patent: 4253170 (1981-02-01), Meisner

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