Illumination – Light modifier – Reflector
Patent
1980-10-14
1982-06-22
Nelson, Peter A.
Illumination
Light modifier
Reflector
362346, 362350, 362304, F21V 700
Patent
active
043365809
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: 1718256 (1929-06-01), Raynolds
patent: 3774995 (1973-11-01), Perret
patent: 4087682 (1978-05-01), Kolodziej
patent: 4143412 (1979-03-01), Sassmannshausen
patent: 4218727 (1980-08-01), Shemitz et al.
patent: 4241392 (1980-12-01), Boone
Hamby Michael V.
Mouyard Arthur A.
Tomaszek Paul A.
General Instrument Corporation
Nelson Peter A.
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