Lighting system
OwnerJohn A. Vlahinventor
Life of this patent
Estimating the term…
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.
Claims24
A reflector for directing light from a source toward an outlet area comprising a reflector body having an inner reflective surface, said reflector body having a continuous longitudinal profile including:
- (a) a first substantially circular arc having a first arc radius;
- (b) a second substantially circular arc which substantially continues said first arc and which has a second arc radius longer than said first arc radius such that said first and second arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- (c) a third substantially circular arc which substantially continues said second arc and which has a third arc radius longer than said second arc radius such that said second and third arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- (d) a fourth substantially circular arc which substantially continues said third arc and which has a fourth arc radius longer than said third arc radius such that said third and fourth arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- and
- (e) a parabolic arc which continues said fourth substantially circular arc.
A lighting system comprising a reflector having a reflector body with a reflective inner surface and a light source disposed within the reflector, said reflector body having a continuous longitudinal profile including:
- (a) a first substantially circular arc having a first arc radius;
- (b) a second substantially circular arc which substantially continues said first arc and which has a second arc radius longer than said first arc radius such that said first and second arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- (c) a third substantially circular arc which substantially continues said second arc and which has a third arc radius longer than said second arc radius such that said second and third arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- and
- (d) a fourth substantially circular arc which substantially continues said third arc and which has a fourth arc radius longer than said third arc radius such that said third and fourth arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- and
- (e) a parabolic segment which continues said fourth substantially circular arc.
A reflector for directing light from a source toward an outlet area comprising a reflector body having an inner reflective surface, said reflector body having a longitudinal profile including:
- (a) a first substantially circular arc having a first arc radius;
- (b) a second substantially quarter-circular arc which substantially continues said first arc and which has a second arc radius longer than said first arc radius such that said first and second arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- (c) a third substantially quarter-circular arc which substantially continues said second arc and which has a third arc radius longer than said second arc radius such that said second and third arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- and
- (d) a fourth substantially quarter-circular arc which substantially continues said third arc and which has a fourth arc radius longer than said third arc radius such that said third and fourth arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5);
- and
- (e) a fifth substantially circular arc which substantially continues said fourth arc and which has a fifth arc radius longer than said fourth arc radius such that said fourth and fifth arc radii have a ratio of lengths of substantially 1/2 (1+.sqroot.5).
Dependencies are inferred from the claim text.