2025-05-18
The 20th "China Optics Valley" International Optoelectronics Expo (hereinafter referred to as the Optics Expo) opened on May 15, 2025, at the China Optics Valley Science and Technology Convention and Exhibition Center. The expo was hosted by the People's Government of Hubei Province and co-hosted by the People's Government of Wuhan City, the Hubei Provincial Department of Economy and Information Technology, and the Management Committee of Wuhan East Lake High-tech Development Zone. Themed "Light Connects All Things, Intelligence Leads the Future," this year's expo was included for the first time in the United Nations Educational, Scientific and Cultural Organization's (UNESCO) global series of events for the International Day of Light, making it a major focus in the global optoelectronics field.
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Trends in the development of optics in China
Materials science breakthrough: Rare earth elements are applied to special glass, improving the light transmittance of domestic lenses; Tsinghua University's research and development of quantum dot optical films has increased the color gamut of displays to 140% NTSC, breaking the technological monopoly of Japanese companies.
2025/05/15
The application differences between gold, silver, and aluminum-plated reflective mirrors mainly lie in their different advantages in reflection band, performance characteristics, and cost; gold-plated reflective mirrors
Advantages: High infrared reflectivity (>95%), high temperature resistance, and corrosion resistance.
2025/05/15
What are the application prospects of lenses in the field of intelligent driving?
Higher precision environmental perception: With technological development, lenses will continue to be optimized, helping sensors such as cameras and lidar to capture environmental information more accurately, including clearer recognition of distant objects and providing high-quality images and data under low light or complex weather conditions, thereby improving the safety and reliability of autonomous driving systems. For example, lenses with new materials and designs can reduce aberrations and chromatic aberrations, improving imaging quality.
2025/05/15
Where are plano-convex lenses used?
Plano-convex lens is a lens with one flat side and one convex side, possessing light-converging Features, and is widely used in scenarios requiring light focusing or collimation.
2025/05/15
A brief introduction to birefringent crystals
Birefringent crystals are a type of crystal with anisotropic optical properties. Their core characteristic is the ability to decompose an incident light beam into two linearly polarized light beams (ordinary ray o-ray and extraordinary ray e-ray) that vibrate perpendicularly and propagate at different speeds. This phenomenon is called birefringence.
2025/05/15
Application of Lenses in Autonomous Driving
In the field of intelligent driving (AD), lenses are primarily used in optical perception systems. By converging, diverging, or adjusting the path of light, they help vehicle sensors accurately capture environmental information.
2025/05/15
What are the functions of a prism?
A prism is a polyhedral optical element made of an optically transparent material (such as glass, crystal, fused quartz, etc.). It controls light through refraction, reflection, dispersion, or polarization effects and is widely used in optical instruments, communications, scientific research, and laser technology.
2025/05/15
What is the impact of optical development trends on related industries?
Impact on the optical equipment manufacturing industry: With the continuous emergence of new optical technologies, the demand for high-precision optical instruments is increasing. For example, the manufacturing of new optical fibers requires advanced drawing equipment, and the development of new optical imaging technologies requires high-precision microscopes and other optical instruments. This will prompt optical equipment manufacturers to continuously invest in research and development, improving their technical level and production capacity to meet market demand.
2025/05/15
What is the function of a filter?
A filter is an optical component that selectively transmits or blocks light of specific wavelengths. It achieves light control through material features or optical coating technology and plays a wide-ranging and crucial role in optical systems, optoelectronic devices, and scientific research.
2025/05/15
A Glan-type polarizer is an optical component made using birefringent crystals (such as calcite). Its core function is to generate, select, or analyze polarized light.
2025/05/15
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