Illumination apparatus, image sensor unit, and image reading apparatus
US9158062B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 2, 2014 |
| Grant date | Oct 13, 2015 |
| Priority date | — |
| Expiry date | Sep 2, 2034 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH04N2201/02497
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
An illumination apparatus includes: a rod-like light guide member that directs light emitted from a first light source and a second light source from an emission surface to an illuminated body while propagating the light by reflection surfaces; and a light blocking member including a second surrounding portion slidably covering another end of the light guide member, wherein the second surrounding portion includes: a light blocking portion protruding toward one end of the light guide member and covering the emission surface of the light guide member; and a cut-out portion adjacent to the light blocking portion and exposing the reflection surface of the light guide member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.