Lens plate and a lighting device having the lens plate
US12297999B2 · kind B2 · utility
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12Claims
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Assignee
Inventors
Key dates
| Filing date | Aug 17, 2021 |
| Grant date | May 13, 2025 |
| Priority date | — |
| Expiry date | Aug 17, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF21Y2115/10
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A lens plate has an array of convex lenses each having a top portion which forms a light input surface for facing a light source and a base which forms a light exit surface. Each convex lens has a height H and a diameter D at the base, wherein H/D>0.85. The lens plate for example has a height from the base of the convex lenses to the top portions in the range 1.5 mm to 5 mm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.