Method for manufacturing a color slide for an automobile projection lamp
US11215922B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jul 12, 2019 |
| Grant date | Jan 4, 2022 |
| Priority date | — |
| Expiry date | Aug 10, 2040 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03F7/30
- WIPO fieldTransport
- WIPO sectorMechanical engineering
Abstract
A method for manufacturing a color slide for an automobile projection lamp includes: forming a plurality of same color pattern units on a glass substrate, each of the color pattern units being composed of a plurality of color coating layers. The plurality of color coating layers are formed by sequentially depositing materials having different colors on a surface of the glass substrate in accordance with different colors. Finally, the glass substrate is cut and separated in unit of one color pattern unit to form an independent color slide with the color pattern. The color slide can be mounted to an automobile projection lamp system for projecting the color pattern.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.