Alignment processing device and manufacturing method of liquid crystal optical element
US12306500B2 · kind B2 · utility
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Key dates
| Filing date | May 10, 2024 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | May 10, 2044 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13355
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
According to one embodiment, an alignment processing device includes a light source, a polarizing beam splitter, a first optical system, a second optical system, a first retardation film, a second retardation film, a moving mechanism configured to move a processing substrate in which a thin film is formed, and a controller. Interfering light is formed in an exposure area by first circularly polarized light and second circularly polarized light. The controller performs control so as to repeat a process of exposing part of an area of the thin film by the interfering light and a process of moving the processing substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.