US5434754A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Light manifold
Assignee: Visteon Global Technologies Inc
•
Filing: 1993-12-27
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Granted: 1995-07-18
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Expires: 2013-12-27
Abstract
Abstract A manifold for use on a vehicle utilizing light from a remote light source. The manifold includes bi-focal parabolic reflector which collects and collimates light from the remote light source which is transmitted to the bi-focal parabolic reflector through a light guide, such as a fiber optic light pipe. Light from the reflector is reflected outward through a plurality of reflective facets to form a light beam.
Inventors
- 👤 John X. Li
- 👤 Jeffrey A. Erion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:04
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0011; G02B6/0013; G02B6/0023; G02B6/0031; B; B60; B60Q; B60Q1/00; B60Q1/0011; F; F21; F21S; F21S43/00; F21S43/20; F21S43/235; F21S43/236; F21S43/237; F21S43/242; F21S43/245; F21S43/30; G02B6/0005; G02B6/0008; G02B6/0028
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
136 words
A manifold for transmitting light from a light source comprising: a semi-parabolic reflector section receiving light from said light source and including a focal axis; an emitter section having a solid body with an elongated front face and an elongated rear face; wherein said semi-parabolic reflector section is connected and positioned at an angle to said front and rear faces, said elongated rear face including an array of reflective facets extending a length of said elongated rear face, said semi-parabolic reflector section collimating said light such that said light is reflected between and substantially parallel to said front and rear faces, each facet skewed with respect to said collimated light such that the facets redirect said light outward substantially throughout a length of said elongated front face; wherein said elongated front face comprises a curved surface.
Claim 2
Dependent Claim
136 words
A manifold for transmitting light from a light source comprising: a semi-parabolic reflector section receiving light from said light source and including a focal axis; an emitter section having a solid body with an elongated front face and an elongated rear face; wherein said semi-parabolic reflector section is connected and positioned at an angle to said front and rear faces, said elongated rear face including an array of reflective facets extending a length of said elongated rear face, said semi-parabolic reflector section collimating said light such that said light is reflected between and substantially parallel to said front and rear faces, each facet skewed with respect to said collimated light such that the facets redirect said light outward substantially throughout a length of said elongated front face; wherein said elongated front face comprises a curved surface.
Claim 3
Dependent Claim
23 words
A manifold as set forth in claim 1 including a light pipe for transmitting light from said light source to said semi-parabolic section.
Claim 4
Dependent Claim
26 words
A manifold as set forth in claim 1 wherein said solid body is made of a transparent material having a critical angle less than 45 degrees.
Claim 5
Dependent Claim
19 words
A manifold as set forth in claim 1 wherein at least one of said facets has a planar surface.
Claim 6
Dependent Claim
19 words
A manifold as set forth in claim 1 wherein at least one of said facets has a complex surface.
Claim 7
Dependent Claim
32 words
A manifold as set forth in claim 1 wherein said facets each have a planar surface positioned at an angle of 45° relative to the focal axis of said semi-parabolic reflector section.
Claim 8
Dependent Claim
21 words
A manifold as set forth in claim 3 wherein said transparent material is acrylic having a critical angle less than 45°.
Claim 9
Dependent Claim
134 words
A lighting system comprising: a light source for transmitting light; a manifold receiving light from said light source, said manifold including a collimator having a focal axis and collimating a portion of said light received from said light source; a reflector positioned adjacent said collimator and receiving the light from said collimator and said light source, said reflector redirecting said light in parallel rays at an angle to said focal axis; said manifold further including a front and rear face, said collimator reflects a light between and substantially parallel said front and said rear face, said rear face comprising a plurality of reflective facets positioned oblique to said parallel rays of light for receiving and redirecting said light outward through said front face; wherein said front surface of said manifold is a curved surface.
Claim 10
Dependent Claim
134 words
A lighting system comprising: a light source for transmitting light; a manifold receiving light from said light source, said manifold including a collimator having a focal axis and collimating a portion of said light received from said light source; a reflector positioned adjacent said collimator and receiving the light from said collimator and said light source, said reflector redirecting said light in parallel rays at an angle to said focal axis; said manifold further including a front and rear face, said collimator reflects a light between and substantially parallel said front and said rear face, said rear face comprising a plurality of reflective facets positioned oblique to said parallel rays of light for receiving and redirecting said light outward through said front face; wherein said front surface of said manifold is a curved surface.
Claim 11
Dependent Claim
38 words
A lighting system as set forth in claim 8 wherein said manifold is formed of a material having an index of refraction such that the critical angle when the material is disposed in air is less than 45°.
Claim 12
Dependent Claim
29 words
A lighting system as set forth in claim 8 wherein said facets comprise planar surfaces positioned at an angle of 45° with respect to said parallel rays of light.
Claim 13
Dependent Claim
22 words
A lighting system as set forth in claim 8 wherein said reflective facets have reflective surfaces, said reflective surfaces being complex surfaces.
Claim 14
Dependent Claim
17 words
A lighting system as set forth in claim 8 wherein said collimator includes a semi-parabolic shaped reflector.
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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) | 1998-07-17 | 1999-01-16 | 1999-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-07-17 | 2003-01-16 | 2003-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-07-17 | 2007-01-16 | 2007-07-18 | $7700.00 | Window Closed / Lapsed |