Patent US5942853A successfully refreshed from Google Patents.
US5942853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic high beam headlight device responsive to vehicle operating conditions
Assignee: Robert Bosch GmbH
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Filing: 1997-01-21
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Granted: 1999-08-24
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Expires: 2017-01-21
Abstract
Abstract The high beam headlight includes a reflector (10) and a light source (12) containing two or more light emitting bodies (20,22). The reflector (10) and the light emitting bodies (20,22) are formed so that reflected light from one light emitting body (20) forms a concentrated or focused high beam issuing from the light source and reflected light from another light emitting body (22) forms a horizontally widened high beam due to horizontal scattering. A control device is provided so that the light emitting bodies (20,22) can either be operated simultaneously or one at a time according to vehicle operating conditions including the condition of the road in front of the vehicle. For example, the high beam formed by energizing only the one light emitting body (22) can be used to form the widened high beam at low vehicle speed, while the light beam formed by energizing only the other light emitting body (20) can be used to form the narrower high beam at high vehicle speed.
Inventors
- 👤 Bernard Piscart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:54
CPC Classifications
B; B60; B60Q; B60Q1/00; B60Q1/02; B60Q1/04; B60Q1/06; B60Q1/08; B60Q1/085; B60Q1/14; B60Q1/1415; B60Q1/1423; B60Q1/143; B60Q2300/00; B60Q2300/20; B60Q2300/21; B60Q2300/30; B60Q2300/31; B60Q2300/312; B60Q2300/32; B60Q2300/322; B60Q2300/33; B60Q2300/335
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
269 words
A high beam headlight device for a vehicle comprising: a light source (12) provided with at least two light emitting bodies (20,22); means for operating said at least two light emitting bodies (20,22) simultaneously; means for operating said at least two light emitting bodies (20,22) alternately; means (10) for forming different high beams having different high beam characteristics from light emitted from different ones of said at least two light emitting bodies (20,22), wherein said means for forming said different high beams includes a reflector (10), and said reflector (10) and said at least two light emitting bodies (20,22) are formed so that each of said different high beams having said different high beam characteristics are generated when said light from each of said at least two light emitting bodies (20,22) is reflected by the reflector (10); and control means (24) for controlling both of said means for operating said at least two light emitting bodies (20,22) so as to either operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies (20,22) simultaneously or to operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies alternately, wherein said control means (24) includes means for automatically controlling both of said means for operating so that said at least two light emitting bodies (20,22) are switched between operating states according to at least one control means-detected vehicle operating condition, and wherein said at least one control means-detected vehicle operating condition is a characteristic of weather conditions in front of the vehicle.
Claim 2
Dependent Claim
269 words
A high beam headlight device for a vehicle comprising: a light source (12) provided with at least two light emitting bodies (20,22); means for operating said at least two light emitting bodies (20,22) simultaneously; means for operating said at least two light emitting bodies (20,22) alternately; means (10) for forming different high beams having different high beam characteristics from light emitted from different ones of said at least two light emitting bodies (20,22), wherein said means for forming said different high beams includes a reflector (10), and said reflector (10) and said at least two light emitting bodies (20,22) are formed so that each of said different high beams having said different high beam characteristics are generated when said light from each of said at least two light emitting bodies (20,22) is reflected by the reflector (10); and control means (24) for controlling both of said means for operating said at least two light emitting bodies (20,22) so as to either operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies (20,22) simultaneously or to operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies alternately, wherein said control means (24) includes means for automatically controlling both of said means for operating so that said at least two light emitting bodies (20,22) are switched between operating states according to at least one control means-detected vehicle operating condition, and wherein said at least one control means-detected vehicle operating condition is a characteristic of weather conditions in front of the vehicle.
Claim 3
Dependent Claim
92 words
The high beam headlight device as defined in claim 1, wherein said reflector (10) and said at least two light emitting bodies (20,22) are formed so that one of said high beams formed from said light reflected by said reflector (10) from one (20) of said at least two light emitting bodies (20,22) is a comparatively concentrated high beam and another of said high beams formed from said light reflected by the reflector (10) from another (22) of said at least two light emitting bodies (20,22) is comparatively widened by horizontal scattering.
Claim 4
Dependent Claim
269 words
A high beam headlight device for a vehicle comprising: a light source (12) provided with at least two light emitting bodies (20,22); means for operating said at least two light emitting bodies (20,22) simultaneously; means for operating said at least two light emitting bodies (20,22) alternately; means (10) for forming different high beams having different high beam characteristics from light emitted from different ones of said at least two light emitting bodies (20,22), wherein said means for forming said different high beams includes a reflector (10), and said reflector (10) and said at least two light emitting bodies (20,22) are formed so that each of said different high beams having said different high beam characteristics are generated when said light from each of said at least two light emitting bodies (20,22) is reflected by the reflector (10); and control means (24) for controlling both of said means for operating said at least two light emitting bodies (20,22) so as to either operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies (20,22) simultaneously or to operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies alternately, wherein said control means (24) includes means for automatically controlling both of said means for operating so that said at least two light emitting bodies (20,22) are switched between operating states according to at least one control means-detected vehicle operating condition, and wherein said at least one control means-detected vehicle operating condition is a wetness of a region in front of the vehicle.
Claim 5
Dependent Claim
269 words
A high beam headlight device for a vehicle comprising: a light source (12) provided with at least two light emitting bodies (20,22); means for operating said at least two light emitting bodies (20,22) simultaneously; means for operating said at least two light emitting bodies (20,22) alternately; means (10) for forming different high beams having different high beam characteristics from light emitted from different ones of said at least two light emitting bodies (20,22), wherein said means for forming said different high beams includes a reflector (10), and said reflector (10) and said at least two light emitting bodies (20,22) are formed so that each of said different high beams having said different high beam characteristics are generated when said light from each of said at least two light emitting bodies (20,22) is reflected by the reflector (10); and control means (24) for controlling both of said means for operating said at least two light emitting bodies (20,22) so as to either operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies (20,22) simultaneously or to operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies alternately, wherein said control means (24) includes means for automatically controlling both of said means for operating so that said at least two light emitting bodies (20,22) are switched between operating states according to at least one control means-detected vehicle operating condition, and wherein said at least one control means-detected vehicle operating condition is a wetness of a region in front of the vehicle.
Claim 6
Dependent Claim
92 words
The high beam headlight device as defined in claim 3, wherein said reflector (10) and said at least two light emitting bodies (20,22) are formed so that one of said high beams formed from said light reflected by said reflector (10) from one (20) of said at least two light emitting bodies (20,22) is a comparatively concentrated high beam and another of said high beams formed from said light reflected by the reflector (10) from another (22) of said at least two light emitting bodies (20,22) is comparatively widened by horizontal scattering.
Claim 7
Dependent Claim
264 words
A high beam headlight device for a vehicle comprising: a light source (12) provided with at least two light emitting bodies (20,22); means for operating said at least two light emitting bodies (20,22) simultaneously; means for operating said at least two light emitting bodies (20,22) alternately; means (10) for forming different high beams having different high beam characteristics from light emitted from different ones of said at least two light emitting bodies (20,22), wherein said means for forming said different high beams includes a reflector (10), and said reflector (10) and said at least two light emitting bodies (20,22) are formed so that each of said different high beams having said different high beam characteristics are generated when said light from each of said at least two light emitting bodies (20,22) is reflected by the reflector (10); and control means (24) for controlling both of said means for operating said at least two light emitting bodies (20,22) so as to either operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies (20,22) simultaneously or to operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies alternately, wherein said control means (24) includes means for automatically controlling both of said means for operating so that said at least two light emitting bodies (20,22) are switched between operating states according to at least one control means-detected vehicle operating condition, and wherein said at least one control means-detected vehicle operating condition is visibility ahead of the vehicle.
Claim 8
Dependent Claim
264 words
A high beam headlight device for a vehicle comprising: a light source (12) provided with at least two light emitting bodies (20,22); means for operating said at least two light emitting bodies (20,22) simultaneously; means for operating said at least two light emitting bodies (20,22) alternately; means (10) for forming different high beams having different high beam characteristics from light emitted from different ones of said at least two light emitting bodies (20,22), wherein said means for forming said different high beams includes a reflector (10), and said reflector (10) and said at least two light emitting bodies (20,22) are formed so that each of said different high beams having said different high beam characteristics are generated when said light from each of said at least two light emitting bodies (20,22) is reflected by the reflector (10); and control means (24) for controlling both of said means for operating said at least two light emitting bodies (20,22) so as to either operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies (20,22) simultaneously or to operate said at least two light emitting bodies with said means for operating said at least two light emitting bodies alternately, wherein said control means (24) includes means for automatically controlling both of said means for operating so that said at least two light emitting bodies (20,22) are switched between operating states according to at least one control means-detected vehicle operating condition, and wherein said at least one control means-detected vehicle operating condition is visibility ahead of the vehicle.
Claim 9
Dependent Claim
92 words
The high beam headlight device as defined in claim 5, wherein said reflector (10) and said at least two light emitting bodies (20,22) are formed so that one of said high beams formed from said light reflected by said reflector (10) from one (20) of said at least two light emitting bodies (20,22) is a comparatively concentrated high beam and another of said high beams formed from said light reflected by the reflector (10) from another (22) of said at least two light emitting bodies (20,22) is comparatively widened by horizontal scattering.
References Cited (Backward Citations)
US2087029A
Cited
US1954806A
Cited
US3171058A
Cited
US4007365A
Cited
US4105898A
Cited
JPS5744542A
Cited
DE4100411A1
Cited
US5400226A
Cited
US5349267A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2002-08-23 | 2003-02-22 | 2003-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-08-23 | 2007-02-22 | 2007-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2010-08-23 | 2011-02-22 | 2011-08-24 | $7700.00 | Window Closed / Lapsed |