| 发明名称 | Image pickup apparatus and lens unit | ||
| 摘要 | A first lens unit performing communication with an image pickup apparatus with a first voltage and a second lens unit performing communication with the image pickup apparatus with a second voltage are selectively attached to the image pickup apparatus. The image pickup apparatus includes a controller configured to operate with a third voltage different from at least one of the first and second voltages to output a signal for the communication with the first and second lens units, and a determiner configured to determine the type of the lens unit attached to the image pickup apparatus. The controller is configured to produce, as a voltage of the signal for the communication, from the third voltage, one of the first and second voltages corresponding to a determination result of the determiner. | ||
| 申请公布号 | US9151929(B2) | 申请公布日期 | 2015.10.06 |
| 申请号 | US201313856581 | 申请日期 | 2013.04.04 |
| 申请人 | Canon Kabushiki Kaisha | 发明人 | Hasegawa Takashi;Tokunaga Tatsuyuki;Nishio Tetsuya;Sugawara Azusa;Kikuchi Hiroshi;Konno Yoshihiko |
| 分类号 | G03B17/00;G02B9/00;G02B9/12;G02B9/34;G02B9/60;G02B9/62;G02B9/64;G02B9/04;G03B17/14 | 主分类号 | G03B17/00 |
| 代理机构 | Cowan, Liebowitz & Latman, P.C. | 代理人 | Cowan, Liebowitz & Latman, P.C. |
| 主权项 | 1. A lens unit comprising: a mount to mechanically couple with an image pickup apparatus and to electrically connect the lens unit with the image pickup apparatus; and a lens controller configured to receive power supply at a fourth voltage from the image pickup apparatus, to produce from the fourth voltage a sixth voltage different from the fourth voltage, and to perform the communication with the image pickup apparatus with the sixth voltage, wherein the mount includes a first lens terminal enabling provision of a type of the lens unit by a configuration to output a predetermined voltage corresponding to the type of the lens unit in a state of being attached to the image pickup apparatus. | ||
| 地址 | Tokyo JP | ||