Patent US5075827A successfully refreshed from Google Patents.
US5075827A
Expired / Lapsed
US
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Indirect light fixture amplification reflector system
Assignee: Individual
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Filing: 1990-10-31
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Granted: 1991-12-24
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Expires: 2010-10-31
Abstract
Abstract A luminaire of the indirect lighting type includes an indirect light fixture amplification reflector system consisting of plural opposed compound asymmetric reflectors mounted on a common longitudinal axis and used in combination with each other to produce a uniformly enlarged singular light distribution pattern when directed towards a secondary reflective surface such as the ceiling of an interior room cavity. The reflector functions to distribute the light pattern in a primarily outward rather than upward manner thereby reducing the number of luminaries required for efficient illumination. The reflector shape prevents direct exposure of the lamp source to the secondary surface thereby decreasing the mounting distance required between the luminaire and the secondary surface being illuminated, as well as providing for a more even illumination and the widest possible spacing ratio between luminaries. The reflector system may be housed in a reflector enclosure which functions as a secondary diffuse reflector on both its interior and exterior surfaces.
Inventors
- 👤 David H. Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:31
CPC Classifications
F; F21; F21V; F21V7/00; F21V7/005; F21V7/0008; F21V7/04; F21V7/09; F21Y; F21Y2103/00
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
105 words
A luminaire for directing light generated by a linear lamp source, having an associated ballast housing and wireway channel, to a reflective surface, comprising: an asymmetric reflector mounted on a longitudinal axis parallel to and adjacent the linear lamp source, said reflector including an aperture beginning approximately 20° to approximately 50° past a vertical line passing through the axis of the lamp source to a location directly above the luminaire at nadir, such that said reflector produces a uniformly enlarged singular light distribution pattern outwardly of the lamp source on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp source.
Claim 2
Dependent Claim
105 words
A luminaire for directing light generated by a linear lamp source, having an associated ballast housing and wireway channel, to a reflective surface, comprising: an asymmetric reflector mounted on a longitudinal axis parallel to and adjacent the linear lamp source, said reflector including an aperture beginning approximately 20° to approximately 50° past a vertical line passing through the axis of the lamp source to a location directly above the luminaire at nadir, such that said reflector produces a uniformly enlarged singular light distribution pattern outwardly of the lamp source on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp source.
Claim 3
Dependent Claim
57 words
The luminaire of claim 1 wherein said reflector includes: a first surface having a highly specular interior reflective surface not exposed to the reflective surface illuminated by the lamp source; and a second surface continuous with said first surface and having a highly diffuse exterior reflective surface exposed to the reflective surface illuminated by the lamp source.
Claim 4
Dependent Claim
44 words
The luminaire of claim 1 and further including: a reflector mounted below said asymmetric reflector and extending outwardly of said asymmetric reflector and including a highly diffuse surface for directing reflections from said asymmetric reflector to the reflective surface illuminated by the lamp source.
Claim 5
Dependent Claim
19 words
The luminaire of claim 1 wherein said asymmetric reflector is hingedly mounted to the ballast housing and wireway channel.
Claim 6
Dependent Claim
114 words
A luminaire for directing light generated by a pair of opposed linear lamp sources, having an associated ballast housing and wireway channel, to a reflective surface, comprising: a pair of asymmetric reflectors mounted on a common longitudinal axis parallel to and adjacent the opposed linear lamp sources, each of said reflectors including an aperture beginning approximately 20° to approximately 50° past a vertical line passing through the axis of a lamp source to a location directly above the luminaire at nadir, such that said reflectors produce a uniformly enlarged singular light distribution pattern outwardly of the lamp sources on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp sources.
Claim 7
Dependent Claim
114 words
A luminaire for directing light generated by a pair of opposed linear lamp sources, having an associated ballast housing and wireway channel, to a reflective surface, comprising: a pair of asymmetric reflectors mounted on a common longitudinal axis parallel to and adjacent the opposed linear lamp sources, each of said reflectors including an aperture beginning approximately 20° to approximately 50° past a vertical line passing through the axis of a lamp source to a location directly above the luminaire at nadir, such that said reflectors produce a uniformly enlarged singular light distribution pattern outwardly of the lamp sources on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp sources.
Claim 8
Dependent Claim
44 words
The luminaire of claim 5 and further including: a reflector mounted below said asymmetric reflectors and extending outwardly of said asymmetric reflectors and including a highly diffuse surface for directing reflections from said asymmetric reflectors to the reflective surface illuminated by the lamp sources.
Claim 9
Dependent Claim
19 words
The luminaire of claim 5 wherein said asymmetric reflectors are hingedly mounted to the ballast housing and wireway channel.
Claim 10
Dependent Claim
162 words
A luminaire for directing light generated by a pair of opposed linear lamp sources, having an associated ballast housing and wireway channel, to a reflective surface, comprising: a pair of asymmetric reflectors mounted on a common longitudinal axis parallel to and adjacent the opposed linear lamp sources, such that said reflectors produce a uniformly enlarged singular light distribution pattern outwardly of the lamp sources on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp sources, each of said reflectors including an aperture beginning approximately 20° to approximately 50° past a vertical line passing through the axis of a lamp source to a location directly above the luminaire at nadir; a first surface having a highly specular interior reflective surface not exposed to the reflective surface illuminated by the lamp sources; and a second surface continuous with said first surface and having a highly diffuse exterior reflective surface exposed to the reflective surface illuminated by the lamp sources.
Claim 11
Dependent Claim
162 words
A luminaire for directing light generated by a pair of opposed linear lamp sources, having an associated ballast housing and wireway channel, to a reflective surface, comprising: a pair of asymmetric reflectors mounted on a common longitudinal axis parallel to and adjacent the opposed linear lamp sources, such that said reflectors produce a uniformly enlarged singular light distribution pattern outwardly of the lamp sources on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp sources, each of said reflectors including an aperture beginning approximately 20° to approximately 50° past a vertical line passing through the axis of a lamp source to a location directly above the luminaire at nadir; a first surface having a highly specular interior reflective surface not exposed to the reflective surface illuminated by the lamp sources; and a second surface continuous with said first surface and having a highly diffuse exterior reflective surface exposed to the reflective surface illuminated by the lamp sources.
Claim 12
Dependent Claim
44 words
The luminaire of claim 8 and further including: a reflector mounted below said asymmetric reflectors and extending outwardly of said asymmetric reflectors and including a highly diffuse surface for directing reflections from said asymmetric reflectors to the reflective surface illuminated by the lamp sources.
Claim 13
Dependent Claim
19 words
The luminaire of claim 8 wherein said asymmetric reflectors are hingedly mounted to the ballast housing and wireway channel.
Claim 14
Dependent Claim
110 words
A luminaire for directing light generated by a linear lamp source, having an associated ballast housing and wireway channel, to a reflective surface, comprising: an asymmetric reflector mounted on a longitudinal axis parallel to and adjacent the linear lamp source, such that said reflector produces a uniformly enlarged singular light distribution pattern outwardly of the lamp source on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp source; and a reflector mounted below said asymmetric reflector and extending outwardly of said asymmetric reflector and including a highly diffuse surface for directing reflections from said asymmetric reflector to the reflective surface illuminated by the lamp source.
Claim 15
Dependent Claim
110 words
A luminaire for directing light generated by a linear lamp source, having an associated ballast housing and wireway channel, to a reflective surface, comprising: an asymmetric reflector mounted on a longitudinal axis parallel to and adjacent the linear lamp source, such that said reflector produces a uniformly enlarged singular light distribution pattern outwardly of the lamp source on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp source; and a reflector mounted below said asymmetric reflector and extending outwardly of said asymmetric reflector and including a highly diffuse surface for directing reflections from said asymmetric reflector to the reflective surface illuminated by the lamp source.
Claim 16
Dependent Claim
57 words
The luminaire of claim 11 wherein said reflector includes: a first surface having a highly specular interior reflective surface not exposed to the reflective surface illuminated by the lamp source; and a second surface continuous with said first surface and having a highly diffuse exterior reflective surface exposed to the reflective surface illuminated by the lamp source.
Claim 17
Dependent Claim
19 words
The luminaire of claim 11 wherein said asymmetric reflector is hingedly mounted to the ballast housing and wireway channel.
Claim 18
Dependent Claim
117 words
A luminaire for directly light generated by a pair of opposed linear lamp sources, having an associated ballast housing and wireway channel, to a reflective surface, comprising: a pair of asymmetric reflectors mounted on a common longitudinal axis parallel to and adjacent the opposed linear lamp sources, such that said reflectors produce a uniformly enlarged singular light distribution pattern outwardly of the lamp sources on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp sources: and a reflector mounted below said asymmetric reflectors and extending outwardly of said asymmetric reflectors and including a highly diffuse surface for directing reflections from said asymmetric reflectors to the reflective surface illuminated by the lamp sources.
Claim 19
Dependent Claim
117 words
A luminaire for directly light generated by a pair of opposed linear lamp sources, having an associated ballast housing and wireway channel, to a reflective surface, comprising: a pair of asymmetric reflectors mounted on a common longitudinal axis parallel to and adjacent the opposed linear lamp sources, such that said reflectors produce a uniformly enlarged singular light distribution pattern outwardly of the lamp sources on the reflective surface, thereby preventing illumination of the reflective surface directly above the lamp sources: and a reflector mounted below said asymmetric reflectors and extending outwardly of said asymmetric reflectors and including a highly diffuse surface for directing reflections from said asymmetric reflectors to the reflective surface illuminated by the lamp sources.
Claim 20
Dependent Claim
58 words
The luminaire of claim 14 where said asymmetric reflectors include: a first surface having a highly specular interior reflective surface not exposed to the reflective surface illuminated by the lamp sources; and a second surface continuous with said first surface and having a highly diffuse exterior reflective surface exposed to the reflective surface illuminated by the lamp sources.
Claim 21
Dependent Claim
19 words
The luminaire of claim 14 wherein said asymmetric reflectors are hingedly mounted to the ballast housing and wireway channel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |