Light box transparent drawing board

Details Light box transparent drawing board Light box transparent drawing board

1992-08-10

1993-06-08

Lazarus, Ira S.

Illumination

Display backlight

Lcd backlight

362 33, 362277, G09F 1304

Patent

active

052172937

ABSTRACT:
A transparent drawing board and supporting light box combination. The light box has a housing with a source of light and a translucent light diffuser positioned on an angle with respect to the base of the drawing board. A rectangular, transparent drawing board has four soft support strips which fit within a peripheral wall formed about the sides of the translucent light diffuser. This permits the transparent drawing board to be securely held on the angled top of the light box and also permits the transparent board to be lifted, turned, and again supported on the upper edge of the peripheral wall. The transparent drawing board extends past the four soft support strips so that it may be easily lifted from the light box.

REFERENCES:
patent: 1163647 (1915-12-01), Dick
patent: 1756289 (1930-04-01), Harding
patent: 2257005 (1941-09-01), Grasse
patent: 2328471 (1943-08-01), Leffel
patent: 2701838 (1955-02-01), Loesch
patent: 2877556 (1959-03-01), Hulen
patent: 3019331 (1962-01-01), Geist
patent: 3850523 (1974-11-01), Skavnak
patent: 4426798 (1984-01-01), Saunders et al.
patent: 4564886 (1986-01-01), Morcheles
patent: 4985602 (1991-01-01), Kouhia

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