Wavefront phase sensors using optically or electrically controlled phase spatial light modulators
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
Problems solved by technology
Method used
Image
Examples
Example
[0020]FIG. 1 shows a wavefront sensor based on a liquid crystal (LC) optically controlled phase SLM. A light beam 1 enters the system and is focused by lens 2 onto the LC optically controlled phase SLM 3: The SLM 3 responds to the optical intensity distribution incident upon it by producing a corresponding index of refraction (or birefringence) distribution that affects the light passing through the SLM. Lenses 2 and 4 are used in the usual manner for Fourier-domain filtering with SLM 3 serving as the Fourier-domain filter. The photodetector array 5 measures the output beam intensity distribution. If the SLM has an electrical input that controls its overall optical sensitivity (i.e., slope of the index of refraction change versus incident optical intensity curve) then this electrical input can optionally be adjusted to improve the output image contrast with the electronic feedback network 6 that uses an input signal from the photodetector array 5.
[0021]FIG. 2 shows a wavefront sensor b
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap