18520688. OPTICAL SYSTEM AND DISPLAY APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
OPTICAL SYSTEM AND DISPLAY APPARATUS
Organization Name
Inventor(s)
Yuma Kobayashi of Tochigi (JP)
OPTICAL SYSTEM AND DISPLAY APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18520688 titled 'OPTICAL SYSTEM AND DISPLAY APPARATUS
The patent application describes an optical system that guides a light beam from an image display element to an exit pupil through a series of reflective surfaces and optical elements.
- The optical system includes a first transmissive reflective surface, a second transmissive reflective surface, and an optical element with two different optical materials cemented together.
- A diffraction grating is formed on the cemented surface, with a convex shape facing the image display element side.
- The system satisfies a predetermined inequality to optimize performance.
Potential Applications: - High-resolution imaging systems - Virtual reality and augmented reality displays - Optical instruments and devices
Problems Solved: - Efficiently guiding light beams in optical systems - Enhancing image quality and resolution - Minimizing optical aberrations
Benefits: - Improved image clarity and sharpness - Enhanced optical performance - Compact and lightweight design
Commercial Applications: Title: Advanced Optical System for High-Resolution Imaging This technology can be used in high-end cameras, medical imaging devices, and military reconnaissance equipment. The market implications include increased demand for advanced optical components in various industries.
Questions about the technology: 1. How does the diffraction grating on the cemented surface improve image quality?
The diffraction grating helps to control the dispersion of light, reducing optical aberrations and enhancing image sharpness.
2. What are the advantages of using different optical materials in the cemented optical elements?
Using different materials allows for better control of light transmission and dispersion, leading to improved optical performance.
Original Abstract Submitted
An optical system guides a light beam from an image display element to an exit pupil and includes, in order from an exit pupil side to an image display element side, a first transmissive reflective surface, a second transmissive reflective surface, and an optical element disposed closer to the exit pupil than the first transmissive reflective surface. The optical element includes, in order from the exit pupil side to the image display element side, a first optical element made of a first optical material and a second optical element made of a second optical material different from the first optical material. The first and second optical elements are cemented together, and a diffraction grating is formed on a cemented surface. The diffraction grating includes a grating surface and a grating wall surface, the grating surface having a convex shape facing the image display element side. A predetermined inequality is satisfied.
