Photographing apparatus
US9531925B2 · kind B2 · utility
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1References
11Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jul 30, 2012 |
| Grant date | Dec 27, 2016 |
| Priority date | — |
| Expiry date | May 17, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B5/20
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photographing apparatus includes an optical system, an imaging device that converts image light passing through the optical system into an electrical signal, and a light amount reduction filter that is disposed on a light path of the image light incident on the imaging device and reduces an amount of light having a wavelength of 450 nm to 600 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.