发明名称 Quantity-of-light adjusting apparatus
摘要 In a quantity-of-light adjusting apparatus having an iris (503) and an ND filter (502) which limit incident light, a control method for the quantity-of-light adjusting apparatus, and a computer program product providing a control program for the quantity-of-light adjusting apparatus, a state of limitation of the incident light by the iris is changed at a first changing speed, and, when a state of limitation of the incident light by the ND filter is changed, the state of limitation of the incident light by the iris is changed at a second changing speed different from the first changing speed. <IMAGE>
申请公布号 EP1069767(A3) 申请公布日期 2002.02.06
申请号 EP20000115144 申请日期 2000.07.12
申请人 CANON KABUSHIKI KAISHA 发明人 TSUDA, YUJI;YAMADA, KUNIHIKO
分类号 H04N5/238 主分类号 H04N5/238
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