| 摘要 |
PROBLEM TO BE SOLVED: To clarify contrast without depending upon a mechanical iris. SOLUTION: By providing a liquid crystal shutter 32 that varies light transmittance for each pixel over the entire surface of a solid-state image pickup element 13 in place of a mechanical iris adjustment mechanism, the contrast of these images is clarified, even though there are many high luminance parts Aip and the high luminance parts are large, by a high luminance level determining part 45 of a CPU part 38, a whole liquid crystal shutter light transmittance increasing/decreasing part 46, a high luminance part light transmittance increasing/decreasing part 47, a D range/high luminance level comparing part 51, a high luminance group determining part 55, and a D range/high luminance level comparing part 56. COPYRIGHT: (C)2007,JPO&INPIT
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