Patent US4966426A successfully refreshed from Google Patents.
US4966426A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reverse light blocking hologram for a center high mounted stoplight
Assignee: Delphi Technologies Inc
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Filing: 1989-09-29
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Granted: 1990-10-30
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Expires: 2009-09-29
Abstract
Abstract A rear window mounted stoplight assembly for a vehicle including stoplight illuminating apparatus for producing stoplight illumination, and a scatter blocking hologram adjacent the stoplight illuminating apparatus for preventing scattered stoplight illumination from being viewable by the vehicle operator. In a particular embodiment, the stoplight illumination apparatus includes an image volume hologram and a source of playback illumination.
Inventors
- 👤 Gaylord E. Moss
- 👤 John E. Wreede
- 👤 Kevin Yu
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:25
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/26; B60Q1/44; G; G02; G02B; G02B5/00; G02B5/32; B60Q1/30; B60Q1/302; G03; G03H; G03H1/00; G03H1/22; G03H1/2202
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
56 words
A rear stoplight assembly for a vehicle having a rear window, comprising: stoplight means adjacent the rear window for producing stoplight illumination; and holographic scatter blocking means for preventing scattered stoplight illumination from being viewable by the vehicle operator, said hologram scatter means being substantially transparent to the rearward vision of the operator of the vehicle.
Claim 2
Dependent Claim
56 words
A rear stoplight assembly for a vehicle having a rear window, comprising: stoplight means adjacent the rear window for producing stoplight illumination; and holographic scatter blocking means for preventing scattered stoplight illumination from being viewable by the vehicle operator, said hologram scatter means being substantially transparent to the rearward vision of the operator of the vehicle.
Claim 3
Dependent Claim
40 words
The stoplight assembly of claim 1 wherein said stop light means comprises: holographic imaging means adjacent the rear window for producing a stoplight image in response to playback illumination; and means for providing playback illumination to said holographic imaging means.
Claim 4
Dependent Claim
31 words
The vehicle stoplight assembly of claim 2 wherein said holographic scatter blocking means comprises a reflection volume hologram for reflecting the scattered stoplight illumination away from the interior of the vehicle.
Claim 5
Dependent Claim
18 words
The stoplight assembly of claim 3 wherein said reflection volume hologram is recorded with a converging reference beam.
Claim 6
Dependent Claim
20 words
The vehicle stoplight assembly of claim 3 wherein said reflection volume hologram is laminarly secured to said holographic imaging means.
Claim 7
Dependent Claim
24 words
The vehicle stoplight assembly of claim 5 wherein said reflection volume hologram is configured to transmit said playback illumination to said holographic imaging means.
Claim 8
Dependent Claim
34 words
The vehicle stoplight assembly of claim 1 wherein said stoplight means comprises: a housing; a light source located within said housing; and a stoplight lens responsive to said light source for producing stoplight illumination.
Claim 9
Dependent Claim
30 words
The vehicle stoplight assembly of claim 7 wherein said holographic scatter blocking means comprises a reflection volume hologram for reflecting scattered stoplight illumination away from the interior of the vehicle.
Claim 10
Dependent Claim
35 words
The vehicle stoplight assembly of claim 8 wherein said stoplight lens is adjacent the rear window of the vehicle, and wherein said reflection volume hologram is interposed between said stoplight lens and the rear window.
Claim 11
Dependent Claim
42 words
The vehicle stoplight assembly of claim 8 wherein said stoplight lens is adjacent the rear window of the vehicle, and said reflection hologram is secured to the rear window over an area beyond the rear window area occupied by said stoplight lens.
Claim 12
Dependent Claim
86 words
A rear stoplight assembly for a vehicle having a rear window, comprising: holographic stoplight imaging means secured to the rear window for producing stoplight illumination in response to playback illumination; means for providing playback illumination for said holographic imaging means; and holographic scatter blocking means for transmitting said playback illumination to said holographic imaging means, and for preventing scattered stoplight illumination from being viewable by the vehicle operator, said holographic scatter blocking means being substantially transparent to the rearward vision of the operator of the vehicle.
Claim 13
Dependent Claim
86 words
A rear stoplight assembly for a vehicle having a rear window, comprising: holographic stoplight imaging means secured to the rear window for producing stoplight illumination in response to playback illumination; means for providing playback illumination for said holographic imaging means; and holographic scatter blocking means for transmitting said playback illumination to said holographic imaging means, and for preventing scattered stoplight illumination from being viewable by the vehicle operator, said holographic scatter blocking means being substantially transparent to the rearward vision of the operator of the vehicle.
Claim 14
Dependent Claim
48 words
The rear stoplight assembly of claim 11 wherein said holographic stoplight imaging means comprises a volume hologram, and wherein said holographic scatter blocking means comprises a reflection volume hologram laminarly secured to said volume hologram for reflection the scattered stoplight illumination away from the interior of the vehicle.
Claim 15
Dependent Claim
20 words
The stoplight assembly of claim 12 wherein said scatter blocking reflection volume hologram is recorded with a converging reference beam.
Claim 16
Dependent Claim
64 words
A rear stoplight assembly for a vehicle having a rear window, comprising: stoplight means adjacent the rear window for producing stoplight illumination; and volume reflection hologram means in the proximity of said stoplight, means for preventing scattered stoplight illumination from being viewable by the vehicle operator, said volume reflection hologram means being substantially transparent to the rearward vision of the operator of the vehicle.
Claim 17
Dependent Claim
64 words
A rear stoplight assembly for a vehicle having a rear window, comprising: stoplight means adjacent the rear window for producing stoplight illumination; and volume reflection hologram means in the proximity of said stoplight, means for preventing scattered stoplight illumination from being viewable by the vehicle operator, said volume reflection hologram means being substantially transparent to the rearward vision of the operator of the vehicle.
Claim 18
Dependent Claim
19 words
The stoplight assembly of claim 14 wherein said volume reflection hologram means is recorded with a converging reference beam.
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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) | 1993-10-29 | 1994-04-30 | 1994-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-10-29 | 1998-04-30 | 1998-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-10-29 | 2002-04-30 | 2002-10-30 | $7700.00 | Window Closed / Lapsed |