# US 10,871,623 B2 · Accessory attachable to camera body and having terminal layout > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,871,623 B2 - Document ID: US10871623B2 - Status: Granted - Kind: B2 - Application number: 16/170,094 - Filed: 2018-10-25 - Published: 2019-05-02 - Granted: 2020-12-22 - Earliest claimed: 2017-10-26 - Assignees: Nikon Corporation - Applicants: Nikon Corporation - Inventors: Takayuki Funaoka; Kiyoshi Yasuda; Hideaki Sugiyama - Web page: https://patentgrep.com/patent/US10871623B2 ## CPC - G02B 7/022: {lens and mount having complementary engagement means, e.g. screw/thread} - G02B 7/021: {for more than one lens} - G02B 7/09: adapted for automatic focusing or varying magnification - G03B 17/14: interchangeably - G03B 17/565: {Optical accessories, e.g. converters for close-up photography, tele-convertors, wide-angle convertors} - H04N 5/04: Synchronising (for television systems using pulse code modulation H04N7/56) - G02B: OPTICAL ELEMENTS, SYSTEMS OR APPARATUS - G03B: APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR (optical parts of such apparatus G02B; photosensitive materials or processes for photographic purposes G03C; apparatus for processing exposed photographic materials G03D) - H04N: PICTORIAL COMMUNICATION, e.g. TELEVISION ## Abstract An accessory for a camera body, the camera body including a second camera-side clock terminal to which a second clock signal is input, a first camera-side power supply terminal that outputs first power, and a camera-side input terminal to which a signal indicating whether or not data communication is allowed is input, the accessory includes: a second terminal that contacts with the first camera-side power supply terminal; a sixth terminal that contacts with the camera-side input terminal; a tenth terminal that contacts with the second camera-side clock terminal; a first terminal group comprising a plurality of terminals between the second terminal and the sixth terminal; and a second terminal group comprising a plurality of terminals between the sixth terminal and the tenth terminal, wherein the number of terminals in the first terminal group is same as the number of terminals in the second terminals. ## Claims ### Claim 1 An accessory configured to be attached to a camera body, the camera body including a second camera-side clock terminal to which a second clock signal is input, a first camera-side power supply terminal that outputs first power, and a camera-side input terminal to which a signal indicating whether or not data communication is allowed is input, the accessory comprising: a second terminal that is brought into contact with the first camera-side power supply terminal; a sixth terminal that is brought into contact with the camera-side input terminal; a tenth terminal that is brought into contact with the second camera-side clock terminal to output the second clock signal from the tenth terminal to the camera body; a first terminal group comprising a plurality of terminals between the second terminal and the sixth terminal; and a second terminal group comprising a plurality of terminals between the sixth terminal and the tenth terminal, wherein a number of terminals in the first terminal group is same as a number of terminals in the second terminal group. ### Claim 2 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a second camera-side power supply terminal that outputs second power and a second camera-side ground terminal corresponding to the second power; and the accessory further includes a fifth terminal, as one of the plurality of terminals in the first terminal group, that is brought into contact with the second camera-side ground terminal. ### Claim 3 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a first camera-side ground terminal corresponding to the first power; and the accessory further includes a third terminal, as one of the plurality of terminals in the first terminal group, that is brought into contact with the first camera-side ground terminal. ### Claim 4 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a first camera-side ground terminal corresponding to the first power, a second camera-side power supply terminal that outputs second power, and a second camera-side ground terminal corresponding to the second power; and the accessory further includes, as two of the plurality of terminals in the first terminal group, a third terminal that is brought into contact with the first camera-side ground terminal, and a fifth terminal that is brought into contact with the second camera-side ground terminal. ### Claim 5 (depends on 4) The accessory according to claim 4, wherein: the third terminal is positioned on the second terminal side in the first terminal group, and the fifth terminal is positioned on the sixth terminal side in the first terminal group. ### Claim 6 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a first camera-side data terminal that outputs a first data signal; and the accessory further includes a seventh terminal, as one of the plurality of terminals in the second terminal group, that is brought into contact with the first camera-side data terminal. ### Claim 7 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a third camera-side data terminal to which a third data signal is input; and the accessory further includes a ninth terminal, as one of the plurality of terminals in the second terminal group, that is brought into contact with the third camera-side data terminal. ### Claim 8 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a first camera-side data terminal that outputs a first data signal and a third camera-side data terminal to which a third data signal is input; and the accessory further includes, as two of the plurality of terminals in the second terminal group, a seventh terminal that is brought into contact with the first camera-side data terminal, and a ninth terminal that is brought into contact with the third camera-side data terminal. ### Claim 9 (depends on 8) The accessory according to claim 8, wherein: the camera body includes a first camera-side clock terminal that outputs a first clock signal; and the accessory further includes: a control unit that controls communication with the camera body; and an eighth terminal that is brought into contact with the first camera-side clock terminal. ### Claim 10 (depends on 9) The accessory according to claim 9, wherein: the communication is command communication performed using the seventh terminal and the first camera-side data terminal, the eighth terminal and the first camera-side clock terminal, and the ninth terminal and the third camera-side data terminal. ### Claim 11 (depends on 8) The accessory according to claim 8, wherein: the seventh terminal is positioned on the sixth terminal side in the second terminal group, and the ninth terminal is positioned on the tenth terminal side in the second terminal group. ### Claim 12 (depends on 1) The accessory according to claim 1, wherein: the camera body includes a second camera-side power supply terminal that outputs second power, a second camera-side ground terminal corresponding to the second power, and a first camera-side data terminal that outputs a first data signal; the accessory further includes: a fifth terminal, as one of the plurality of terminals in the first terminal group, that is brought into contact with the second camera-side ground terminal; and a seventh terminal, as one of the plurality of terminals in the second terminal group, that is brought into contact with the first camera-side data terminal; and the sixth terminal is positioned between the fifth terminal and the seventh terminal. ### Claim 13 (depends on 1) The accessory according to claim 1, further comprising a driving unit that drives at least one of a plurality of lenses, wherein the first power is power supplied to the driving unit. ### Claim 14 (depends on 13) The accessory according to claim 13, wherein: the driving unit drives at least one of the plurality of lenses in an optical axis direction. ### Claim 15 (depends on 1) The accessory according to claim 1, wherein: the accessory is an interchangeable lens. ### Claim 16 (depends on 2) The accessory according to claim 2, further comprising a driving unit that drives at least one of a plurality of lenses, wherein the first power is power supplied to the driving unit. ### Claim 17 (depends on 16) The accessory according to claim 16, wherein: the driving unit drives at least one of the plurality of lenses in an optical axis direction. ### Claim 18 (depends on 2) The accessory according to claim 2, wherein: the accessory is an interchangeable lens.