Light shielding plate, camera unit, electronic device, and method of manufacturing light shielding plate
US12041332B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 2022 |
| Grant date | Jul 16, 2024 |
| Priority date | — |
| Expiry date | Sep 15, 2042 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N23/51
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A light shielding plate includes a front surface located on a light incident side, a rear surface opposite to the front surface, and a hole passing through the light shielding plate between the front surface and the rear surface. The hole has a first hole portion and a second hole portion connected to the first hole portion at an intermediate opening thereof. The first hole portion extends from a rear surface opening on the rear surface to the intermediate opening and is shaped so as to taper from the rear surface toward the front surface. The second hole portion extends from a front surface opening on the front surface to the intermediate opening and is shaped so as to taper from the front surface toward the rear surface. The front surface opening is larger than the rear surface opening. The intermediate opening has a circularity of 3 μm or less.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.