Alpha-numeric display array and method of manufacture

Details Alpha-numeric display array and method of manufacture Alpha-numeric display array and method of manufacture

1980-10-14

1982-08-17

Walsh, Donald P.

Illumination

Light modifier

Refractor

362245, 362246, 362330, F21V 500

Patent

active

043453082

ABSTRACT:
An alpha-numeric array is provided for the selective display of characters as controlled by associated character generator programming circuitry. The display array in one character format utilizes a 5.times.7 matrix array of individually operable illumination sources, LED solid state lamps for example, with programmed combinations of the individual illumination sources being operated to display the programmed characters. The display array includes a lens and front panel array having integrally formed lens areas. The lens areas of the lens and front panel array when unactuated are essentially indistinguishable from the front panel array background area thus providing improved contrast. The display array also includes a reflector array having integrally formed reflector cavities. The integrally formed reflector cavities include predetermined surface characteristics for collimating the light rays emanating from the central axis of the reflector cavities. The display array also includes an illumination source alignment and mounting array having integrally formed illumination source mounting arrangements and integrally formed illumination source alignment arrangements.

REFERENCES:
patent: 3821590 (1974-06-01), Kosman
patent: 4185891 (1980-01-01), Kaestner
patent: 4254453 (1981-03-01), Mouyard

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