Accessory device capable of being attached to or detached from electronic apparatus
US11841607B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 19, 2021 |
| Grant date | Dec 12, 2023 |
| Priority date | — |
| Expiry date | Jan 29, 2042 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B2215/056
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An accessory device capable of preventing setting information to be written from being destroyed is provided. The accessory device capable of being attached to or detached from an electronic apparatus, comprising an operation member, a lock mechanism configured to perform a locking operation to lock the accessory device and the electronic apparatus in response to an operation of the operation member, a movement restriction release mechanism configured to release a restriction on a movement of the operation member, and an operation restricting member configured to restrict an operation of the movement restriction release mechanism. The operation restricting member makes it more difficult to perform the operation of the movement restriction release mechanism when a power of the accessory device is in an on state than when the power of the accessory device is in an off state.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.