Title:
ELECTRONIC DEVICE
Document Type and Number:
WIPO Patent Application WO/2021/210225
Kind Code:
A1
Abstract:
This electronic device is capable of executing eye-approach detection for detecting the approach of an eye toward an eyepiece, and line-of-sight detection for detecting the line of sight of a user, the electronic device being characterized in that: the device includes a first light source that emits light for the eye-approach detection, a second light source that receives light for the line-of-sight detection, an eye-approach detection sensor that receives light for the eye-approach detection, and a line-of-sight detection sensor that receives light for the line-of-sight detection; and a first wavelength, which is the peak wavelength of light emitted by the first light source, is different from a second wavelength, which is the peak wavelength of light emitted by the second light source.
Inventors:
YAMAMOTO HIDEAKI (JP)
Application Number:
PCT/JP2021/000487
Publication Date:
October 21, 2021
Filing Date:
January 08, 2021
Export Citation:
Assignee:
CANON KK (JP)
International Classes:
G03B13/06; G03B7/00; H04N5/225
Foreign References:
| JP2004012503A | 2004-01-15 | |||
| JPH0915483A | 1997-01-17 | |||
| JPH09262209A | 1997-10-07 |
Attorney, Agent or Firm:
IP FIRM SHUWA (JP)
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