18393848. PROJECTOR simplified abstract (SEIKO EPSON CORPORATION)
Contents
PROJECTOR
Organization Name
Inventor(s)
Kana Hatano of Matsumoto-Shi (JP)
Eiji Morikuni of Matsumoto-Shi (JP)
Akira Shinbo of Shiojiri-Shi (JP)
PROJECTOR - A simplified explanation of the abstract
This abstract first appeared for US patent application 18393848 titled 'PROJECTOR
The patent application describes a projector system that includes a light source, a Fresnel lens group, polarizers, a light modulator, and a projection lens.
- The Fresnel lens group consists of multiple Fresnel lenses, with the first lens closest to the light source having positive power.
- The first Fresnel lens does not have a Fresnel surface on the light incident side but has one on the light exiting side.
- The light-incident-side polarizer transmits the beam after it exits the Fresnel lens group, while the light-exiting-side polarizer transmits the modulated beam.
- The light modulator modulates the beam to form a projection image, which is then projected by the projection lens.
Potential Applications: - This technology can be used in various projection systems, such as in cinemas, classrooms, and conference rooms. - It can also be applied in augmented reality and virtual reality devices for image projection.
Problems Solved: - The system provides a more efficient way to modulate light for projection, enhancing image quality and clarity. - The use of Fresnel lenses helps in parallelizing the light beam output, improving overall performance.
Benefits: - Improved image quality and brightness in projection systems. - Enhanced efficiency and precision in modulating light for projection.
Commercial Applications: Title: Advanced Projection System for Enhanced Image Quality This technology can be utilized in commercial settings such as theaters, educational institutions, and corporate offices for high-quality image projection.
Prior Art: Prior research in the field of projection systems and optical devices may provide insights into similar technologies using Fresnel lenses and polarizers.
Frequently Updated Research: Researchers are continuously exploring new methods to enhance projection technology, including advancements in light modulation and lens design.
Questions about the Technology: 1. How does the use of Fresnel lenses improve the performance of the projector system? 2. What are the potential challenges in implementing this technology in different projection applications?
Original Abstract Submitted
A projector includes a light source, a Fresnel lens group parallelizing the beam output from the light source, a light-incident-side polarizer transmitting the beam having exited out of the Fresnel lens group, a light modulator modulating the beam having passed through the light-incident-side polarizer to form a projection image, a light-exiting-side polarizer transmitting the beam modulated by the light modulator, and a projection lens projecting the beam having passed through the light-exiting-side polarizer. The Fresnel lens group includes a plurality of Fresnel lenses. The first Fresnel lens, which is disposed at a position closest to the light source in the Fresnel lens group, has positive power. The light incident surface of the first Fresnel lens does not have a Fresnel surface. The light exiting surface of the first Fresnel lens has a Fresnel surface.
