Illumination – Revolving
Patent
1988-11-08
1990-08-07
Lazarus, Ira S.
Illumination
Revolving
362346, 362347, F21Y 800, F21Y 712
Patent
active
049472925
ABSTRACT:
A lighting system having a light source is disposed inside the reflective inner surface of a reflector. The longitudinal profile of the reflector is a continuous curve comprised of four substantially circular arcs and a parabolic segment. A first arc lies nearest the source. A second arc having a radius of substantially 1/2 (1+.sqroot.5) times the radius of the first "continues" the first in the sense that the arcs have the same slope at their point of contact. Likewise, a third arc having a radius of substantially 1/2 (1+.sqroot.5) times the radius of the second continues the second arc and a fourth has a radius substantial 1/2 (1+.sqroot.5) times the radius of the third. The parabolic segment continues the fourth arc and completes the profile. Internal and external reflecting means may be provided to further align and direct the exiting light.
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Cole Richard
Lazarus Ira S.
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