Light irradiation apparatus including a light shield
US9994045B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 30, 2015 |
| Grant date | Jun 12, 2018 |
| Priority date | — |
| Expiry date | Jul 30, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B19/0028
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Disclosed are a light irradiation apparatus that prevents or suppresses projection of light on adjoining other portions and can be miniaturized overall, and a photocurable material treatment apparatus that includes this light irradiation apparatus. The light irradiation apparatus includes: a light source having a plurality of light emitting elements arranged in the x direction; and an elongated cylindrical lens extending in the x direction along the light source unit. A light source reference plane that includes a center of a light emission surface of each light emitting element is located on a plane separated in the y direction from a lens reference plane that includes a center axis of the cylindrical lens. A direction of the light from the cylindrical lens is tilted in a direction away from the light source reference plane with respect to the lens reference plane
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.