18611287. DIFFRACTIVE OPTICAL ELEMENT, OPTICAL APPARATUS, DISPLAY APPARATUS, AND IMAGING APPARATUS simplified abstract (CANON KABUSHIKI KAISHA)
Contents
DIFFRACTIVE OPTICAL ELEMENT, OPTICAL APPARATUS, DISPLAY APPARATUS, AND IMAGING APPARATUS
Organization Name
Inventor(s)
KOUICHI Yonetani of Kanagawa (JP)
HIROYUKI Tanaka of Kanagawa (JP)
DIFFRACTIVE OPTICAL ELEMENT, OPTICAL APPARATUS, DISPLAY APPARATUS, AND IMAGING APPARATUS - A simplified explanation of the abstract
This abstract first appeared for US patent application 18611287 titled 'DIFFRACTIVE OPTICAL ELEMENT, OPTICAL APPARATUS, DISPLAY APPARATUS, AND IMAGING APPARATUS
The patent application describes a diffractive optical element with a substrate containing a diffraction grating covered by a resin layer. The diffraction grating consists of a circular first grating and an arc-shaped second grating positioned outside the first grating. The element has an optical effective region surrounded by a non-optical effective region, with the second grating's arc end located in the non-optical region. The resin layer's thickness in the non-optical region is greater than in the optical region.
- The diffractive optical element features a unique diffraction grating design with circular and arc-shaped patterns.
- The element includes both optical and non-optical effective regions, enhancing its performance.
- The resin layer thickness varies across the optical and non-optical regions, optimizing the element's functionality.
- Potential Applications:
This technology could be used in optical devices, such as cameras, projectors, and sensors, to improve light diffraction and enhance image quality.
- Problems Solved:
The diffractive optical element addresses issues related to light diffraction efficiency and image distortion, providing a more precise and clear optical performance.
- Benefits:
- Improved light diffraction efficiency - Enhanced image quality - Precise optical performance
- Commercial Applications:
Title: Advanced Optical Components for Enhanced Imaging Systems This technology can be utilized in the development of high-performance imaging systems for various industries, including photography, medical imaging, and scientific research.
- Questions about Diffractive Optical Elements:
1. How does the unique diffraction grating design impact the performance of the optical element?
- The circular and arc-shaped patterns of the diffraction grating enhance light diffraction efficiency and image quality.
2. What are the potential commercial applications of diffractive optical elements in the imaging industry?
- Diffractive optical elements can be used in cameras, projectors, and sensors to improve optical performance and image quality.
Original Abstract Submitted
A diffractive optical element includes: a substrate having a surface on which a diffraction grating is provided; and a resin layer provided on the surface of the substrate so as to cover the diffraction grating, wherein, in plan view as viewed along an optical axis direction, the diffraction grating includes: a first diffraction grating having a circular shape; and a second diffraction grating having an arc shape, the second diffraction grating being arranged on an outer side of the first diffraction grating, wherein the diffractive optical element includes an optical effective region and a non-optical effective region surrounding the optical effective region, wherein the second diffraction grating has an arc end positioned in the non-optical effective region, and wherein a thickness of the resin layer provided in the non-optical effective region is larger than a thickness of the resin layer provided in the optical effective region.
