Key of optical mechanical keyboard comprising a ring lock with a light transmission groove and a photoelectric switch on a circuit board
US10680611B2 · kind B2 · utility
1Cited by
1References
8Claims
0Family size
Inventor
Key dates
| Filing date | Dec 29, 2016 |
| Grant date | Jun 9, 2020 |
| Priority date | — |
| Expiry date | Mar 21, 2037 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01H2239/022
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A key of an optical mechanical keyboard, having a base plate, a circuit board, an optical switch, a rotating member, a key cap, a pressing cylinder, a primary spring, and a secondary spring. A ring-shaped fastening member is provided on the base plate, and a side wall of the ring-shaped fastening member is provided with two opposing first light-admitting slots, and a keystroke impact slot is respectively provided at two sides of and between the opposing first light-admitting slots. The key has a simple structure and is lightweight and slim, and enables generation of a clear sound upon striking a key.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.