US5365412A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Low profile illuminator
Assignee: Visteon Global Technologies Inc
•
Filing: 1993-01-07
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Granted: 1994-11-15
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Expires: 2013-01-07
Abstract
Abstract A illuminator for use on a vehicle utilizing light from a remote light source. A semi-paraboloidal reflector collects and collimates light from the remote light source which is transmitted to the semi-paraboloidal 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
- 👤 Prasad M. Koppolu
- 👤 Jeyachandrabose Chinniah
- 👤 Amir Fallah
- 👤 Mahendra Dassanayake
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:25
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/0001; G02B6/0005; G02B6/001; F; F21; F21S; F21S41/00; F21S41/20; F21S41/24; F21S43/00; F21S43/20; F21S43/235; F21S43/236; F21S43/237; F21S43/242; F21S43/243; F21S43/247
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
120 words
A lighting System, including a remote light source comprising: an illuminator having a semi-paraboloidal reflector section having a focal axis and a focal point and a plurality of adjacent emitter sections each emitter section having at least one reflective facet; a light guide for transmitting light from said remote light source to said illuminator; a non-imaging optics concentrator attached to said light guide and positioned at the focal point of said semi-paraboloidal reflector section and inclined with respect to the focal axis of said semi-paraboloidal reflector section; and said emitter sections aligned with adjacent emitter sections such that the facets of adjacent emitter sections are staggered whereby the light from each reflective facet is combined to form a beam pattern.
Claim 2
Dependent Claim
120 words
A lighting System, including a remote light source comprising: an illuminator having a semi-paraboloidal reflector section having a focal axis and a focal point and a plurality of adjacent emitter sections each emitter section having at least one reflective facet; a light guide for transmitting light from said remote light source to said illuminator; a non-imaging optics concentrator attached to said light guide and positioned at the focal point of said semi-paraboloidal reflector section and inclined with respect to the focal axis of said semi-paraboloidal reflector section; and said emitter sections aligned with adjacent emitter sections such that the facets of adjacent emitter sections are staggered whereby the light from each reflective facet is combined to form a beam pattern.
Claim 3
Dependent Claim
119 words
A lighting system for use with a remote light source comprising: a light guide for transmitting light from said remote light source; an illuminator, said illuminator receiving light from said remote light source via said light guide, said illuminator including a reflective surface which receives and collimates the light exiting said light guide and a plurality of planar sections, said planar sections having a front face and a rear face, said rear face including at least one reflective facet positioned oblique said collimated light for receiving and redirecting said light outward through said front face, said planar sections arranged in adjacent layers such that no two facets of adjacent layers are aligned in a direction perpendicular the collimated light.
Claim 4
Dependent Claim
119 words
A lighting system for use with a remote light source comprising: a light guide for transmitting light from said remote light source; an illuminator, said illuminator receiving light from said remote light source via said light guide, said illuminator including a reflective surface which receives and collimates the light exiting said light guide and a plurality of planar sections, said planar sections having a front face and a rear face, said rear face including at least one reflective facet positioned oblique said collimated light for receiving and redirecting said light outward through said front face, said planar sections arranged in adjacent layers such that no two facets of adjacent layers are aligned in a direction perpendicular the collimated light.
Claim 5
Dependent Claim
38 words
A lighting system as set forth in claim 2 wherein said illuminator 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 6
Dependent Claim
27 words
A lighting system as set forth in claim 3 wherein said facets comprise planar surfaces positioned at an angle of 45° with respect to said collimated light.
Claim 7
Dependent Claim
20 words
A lighting system as set forth in claim 2 wherein said front face of said illuminator is a complex surface.
Claim 8
Dependent Claim
22 words
A lighting system as set forth in claim 2 wherein said reflective facets have reflective surfaces, said reflective surfaces being complex surfaces.
Claim 9
Dependent Claim
17 words
A lighting system as set forth in claim 2 wherein said reflective surface includes a semi-paraboloidal reflector.
Claim 10
Dependent Claim
52 words
A lighting system as set forth in claim 7 wherein said light guide having a non-imaging optic concentrator positioned on one end thereof, said concentrator positioned at the focal point of said semi-paraboloidal section so that substantially all of said light exiting said concentrator is collected and collimated toward said reflective facets.
References Cited (Backward Citations)
US1419482A
Cited
US1589664A
Cited
US1815751A
Cited
US1995012A
Cited
US2229693A
Cited
US2198014A
Cited
US3900727A
Cited
DE2710553A1
Cited
US4241382A
Cited
US4389698A
Cited
US4417300A
Cited
US4408266A
Cited
US4456948A
Cited
US4432039A
Cited
US4523262A
Cited
US4556928A
Cited
US4644455A
Cited
US4494176A
Cited
US4536834A
Cited
US4654758A
Cited
GB2180051A
Cited
US4740871A
Cited
US4794493A
Cited
US4868723A
Cited
US4803601A
Cited
US4755918A
Cited
US4883333A
Cited
US4811172A
Cited
US5001609A
Cited
EP0364228A2
Cited
US4956759A
Cited
US4868718A
Cited
US4916592A
Cited
US5058985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |