Seiko epson corporation (20240210808). PROJECTOR simplified abstract
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 20240210808 titled 'PROJECTOR
The abstract describes a projector system that includes a light source, a fresnel lens group, polarizers, a light modulator, and a projection lens to form a projection image.
- The projector system includes a light source, fresnel lens group, polarizers, light modulator, and projection lens.
- The fresnel lens group consists of a first fresnel lens with positive power closest to the light source and a second fresnel lens with positive power shifted towards the light modulator.
- The first fresnel lens has a fresnel surface on the light incident side but not on the light exiting side.
Potential Applications: - This technology can be used in home theater systems, classrooms, and conference rooms for high-quality image projection. - It can also be utilized in digital signage, advertising displays, and entertainment venues for large-scale projections.
Problems Solved: - Provides a compact and efficient way to project images with high brightness and clarity. - Helps in reducing the size and complexity of traditional projector systems.
Benefits: - Improved image quality and brightness. - Compact design for easy installation and portability. - Energy-efficient operation.
Commercial Applications: Title: Advanced Projection System for Enhanced Image Quality This technology can be commercialized for use in home entertainment systems, educational institutions, corporate boardrooms, and public display installations. The compact design and high-quality image projection make it a valuable asset in various commercial settings.
Prior Art: Prior art related to this technology can be found in patents or research papers on projection systems, fresnel lenses, and polarizing elements used in optical devices.
Frequently Updated Research: Researchers are constantly exploring ways to enhance the efficiency and performance of projection systems using advanced optics, materials, and image processing algorithms.
Questions about the Advanced Projection System: 1. How does the absence of a fresnel surface on the light exiting side of the first fresnel lens impact image quality? The absence of a fresnel surface on the light exiting side helps in reducing optical aberrations and improving image sharpness.
2. What are the potential advancements in projection technology that could further improve image quality and efficiency? Advancements in LED technology, optical coatings, and image processing algorithms can lead to significant improvements in projection systems.
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 first fresnel lens having positive power and disposed at a position closest to the light source in the fresnel lens group, and a second fresnel lens having positive power and disposed at a position shifted from the first fresnel lens toward the light modulator. the light incident surface of the first fresnel lens has a fresnel surface. the light exiting surface of the first fresnel lens has no fresnel surface.
