US Patent No: 7,359,000
Number of patents in Portfolio can not be more than 2000
Image pickup apparatus, control method therefor, and computer-readable program for implementing the control method
Stats
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Apr 15, 2008
Issued date -
Nov 18, 2003
filing date -
10/715,922
serial no -
In Force
status
Importance
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Abstract
There is provided an image pickup apparatus that is capable of eliminating the influence of errors attributed to differences in characteristics between lens devices attached to the image pickup apparatus such as a camera or errors attributed to differences in characteristics between optical component elements within the main body of the image pickup apparatus, to thereby enable setting a proper exposure compensation value. An image pickup device receives light passing through a lens device and outputs an image signal, and a photometric sensor receives the light passing through the lens device and outputs luminance information. A main control circuit sets an exposure compensation value according to an output from the photometric sensor. Specifically, the main control circuit sets a first exposure compensation value according to the luminance information outputted from the photometric sensor, to cause the image pickup device to carry out a first storage of the light passing through the lens device, based on the set first exposure compensation value, and sets a second exposure compensation value according to the result of the first storage, to cause the image pickup device to carry out a second storage of the light passing through the lens device, based on the set second exposure compensation value.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,619,265 Camera capable of selecting compression ratio efficiency | 28 | 1994 | |
| 5,655,161 Photometric device for a camera | 4 | 1996 | |
| 6,906,744 Electronic camera | 31 | 2000 | |
| 6,560,412 Electronic flash controlling device | 6 | 2002 | |
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| 5,677,733 Exposure control device having a plurality of light detecting areas | 18 | 1994 | |
| 5,510,837 Automatic exposure control device performing weighted light measurement | 14 | 1994 | |
| 6,570,620 Exposure control device | 9 | 1995 | |
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| 6,215,960 Camera with camera-shake detection apparatus | 3 | 1997 | |
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| 6,839,087 Exposure controller of a digital camera | 12 | 2000 | |
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| 2003/0020,826 Automatic white balancing via illuminant scoring autoexposure by neural network mapping | 2 | 2002 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Oct 15, 2015 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 15, 2019 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |