Glare sensor for a vehicle
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United States of America Patent
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Jun 20, 1995
Grant Date -
N/A
app pub date -
May 26, 1993
filing date -
May 27, 1992
priority date (Note) -
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Abstract
A glare sensor includes a light condensing means for condensing light beams from the fore scene and photo sensing element for sensing the light beams from the light condensing means. The photo sensing element is constructed with photodiodes. Blue filters are selectively coupled with the photodiodes. With provision of the blue filters, the glare sensor is able to discriminate red light from white light or yellow light. The output signals of the photodiodes with the blue filters and the photodiodes with no filters are used for detecting the direction and color of the light coming from the fore scene. With this, the glare sensor is capable of detecting forerunning cars, oppositely running cars and traffic lights.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- KOITO MANUFACTURING CO., LTD.
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Hayami, Toshihisa | Shizuoka, JP | 22 | 822 |
Ishikawa, Masaaki | Shizuoka, JP | 71 | 1851 |
Kobayashi, Shoji | Shizuoka, JP | 60 | 1671 |
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Fee | Large entity fee | small entity fee | micro entity fee |
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Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |
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