Fujifilm corporation (20240319420). OPTICAL ELEMENT AND OPTICAL SENSOR simplified abstract
Contents
OPTICAL ELEMENT AND OPTICAL SENSOR
Organization Name
Inventor(s)
Yukito Saitoh of Minamiashigara-shi (JP)
Kazuya Hisanaga of Minamiashigara-shi (JP)
Yujiro Yanai of Minamiashigara-shi (JP)
OPTICAL ELEMENT AND OPTICAL SENSOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 20240319420 titled 'OPTICAL ELEMENT AND OPTICAL SENSOR
Simplified Explanation: The patent application describes an optical element that reflects light in a specific wavelength range using a guided-mode resonance phenomenon of a liquid crystal diffraction element, narrowing the reflection wavelength range.
- The optical element includes a liquid crystal layer with a unique alignment pattern that changes the direction of the optical axis continuously while rotating towards at least one in-plane direction.
- The liquid crystal layer is formed by immobilizing a cholesteric liquid crystalline phase and has a resonance structure.
Key Features and Innovation:
- Utilizes guided-mode resonance phenomenon of a liquid crystal diffraction element.
- Narrowing of reflection wavelength range.
- Liquid crystal layer with a unique alignment pattern.
- Immobilization of cholesteric liquid crystalline phase.
- Presence of a resonance structure.
Potential Applications: The technology can be applied in:
- Optical sensors
- Spectroscopy
- Display technologies
- Optical filters
Problems Solved:
- Narrowing reflection wavelength range
- Enhancing light reflection efficiency
- Providing precise control over reflected light
Benefits:
- Improved optical performance
- Enhanced spectral selectivity
- Increased efficiency in light reflection
Commercial Applications: Potential commercial applications include:
- High-performance optical sensors
- Advanced display technologies
- Spectroscopic instruments
Prior Art: Prior research in liquid crystal optics, guided-mode resonance, and cholesteric liquid crystalline phases can provide valuable insights into related technologies.
Frequently Updated Research: Stay updated on advancements in liquid crystal optics, guided-mode resonance, and cholesteric liquid crystalline phases for potential improvements in the technology.
Questions about Optical Element: 1. How does the unique alignment pattern of the liquid crystal layer contribute to the narrowing of the reflection wavelength range? 2. What are the potential implications of immobilizing a cholesteric liquid crystalline phase in the formation of the liquid crystal layer?
Original Abstract Submitted
an object of the present invention is to provide an optical element that reflects light in a specific wavelength range by a guided-mode resonance phenomenon of a liquid crystal diffraction element and can narrow a reflection wavelength range, and an optical sensor including the optical element. the optical element according to the embodiment of the present invention is an optical element including a liquid crystal layer that is formed of a composition including a liquid crystal compound, in which the liquid crystal layer has a liquid crystal alignment pattern in which a direction of an optical axis derived from the liquid crystal compound changes while continuously rotating toward at least one in-plane direction, the liquid crystal layer is formed by immobilizing a cholesteric liquid crystalline phase, and the liquid crystal layer further has a resonance structure.
