Title:
光学式キーボード
Document Type and Number:
Japanese Patent JP7417232
Kind Code:
B2
Abstract:
To provide an optical keyboard capable of optically detecting depression quantities of a plurality of push buttons using aggregated light sources and an aggregated light receiving element group.SOLUTION: An optical keyboard comprises button modules each of which includes: a push button having a protrusion; and a package that houses the push button in a state where the protrusion can project from a hole. The optical keyboard is configured so that at least a part of the protrusion and at least a part of the outer side of the package are different in light scattering characteristic or fluorescence characteristic, and so that the larger a depression quantity of the push button is, the further the protrusion projects from the package.SELECTED DRAWING: Figure 3
Inventors:
Toru Egashira
Application Number:
JP2020020232A
Publication Date:
January 18, 2024
Filing Date:
February 09, 2020
Export Citation:
Assignee:
Toru Egashira
International Classes:
G06F3/02; G06T7/60; H03M11/26
Domestic Patent References:
| JP3109627A | ||||
| JP3273708A | ||||
| JP11260212A | ||||
| JP2011215968A | ||||
| JP2014231301A |