18531899. OPTICAL SYSTEM AND DISPLAY APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)

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OPTICAL SYSTEM AND DISPLAY APPARATUS

Organization Name

CANON KABUSHIKI KAISHA

Inventor(s)

Yuma Kobayashi of Tochigi (JP)

Yu Miyajima of Tochigi (JP)

OPTICAL SYSTEM AND DISPLAY APPARATUS - A simplified explanation of the abstract

This abstract first appeared for US patent application 18531899 titled 'OPTICAL SYSTEM AND DISPLAY APPARATUS

The optical system described in the patent application guides a light beam from an image display element to an exit pupil using transmissive reflective surfaces and optical elements.

  • The system includes first and second transmissive reflective surfaces, as well as first and second optical elements.
  • The first optical element consists of a first optical part made of one material and a second optical part made of a different material, cemented together with a diffraction grating on the surface.
  • Specific requirements and conditions are met to ensure the effectiveness of the system.

Potential Applications: This technology could be used in various imaging devices such as cameras, telescopes, microscopes, and other optical instruments.

Problems Solved: The system addresses the challenge of efficiently guiding light beams from image display elements to exit pupils in optical devices.

Benefits: Improved optical performance, enhanced image quality, and increased efficiency in light transmission.

Commercial Applications: This technology could be valuable in the manufacturing of high-quality optical devices for industries such as photography, astronomy, and medical imaging.

Questions about the technology: 1. How does the use of different optical materials in the first optical element contribute to the performance of the system? 2. What specific advantages does the presence of a diffraction grating on the cemented surface provide in this optical system?


Original Abstract Submitted

An optical system through which a light beam from an image display element is guided to an exit pupil includes first and second transmissive reflective surfaces, and first and second optical elements. The first optical element includes a first optical part made of a first optical material, and a second optical part made of a second optical material different from the first optical material that are disposed in order from the exit pupil side to the image display element side. The first optical part and the second optical part are cemented to each other and a diffraction grating is formed on a cemented surface of the first and second optical parts. Predetermined inequalities are satisfied.