Blog

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  04/10/2025

  What Is a Concave Lens?

  Concave lenses are essential components in various optical devices, contributing to a wide range of daily appliances. These lenses, known as diverging lenses, are designed to bend light rays inward, r...
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  04/10/2025

  What Is a Convex Lens?

  A convex (converging) lens is a lens that focuses light rays that are parallel to its principal axis to converge at a single point known as the focal point. This type of lens has numerous applications...
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  04/08/2025

  Infrared Optical Lens of Different Wavelengths

  Shortwave Infrared Optical LensCompared to visible light and other thermal bands, shortwave infrared optical lens has unique imaging advantages. They are used in electronic board inspection, material/...
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  03/10/2025

  Top 10 Custom Aspheric Lens Manufacturers in China

  CNGEIR: Mastery in Infrared Aspheric OpticsHeadquartered in the Nanjing Li Shui Economic Development Zone, CNGEIR operates a 120,000-square-meter facility with over 300 employees and a global network ...
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  03/10/2025

  Top 10 Optical Dome Manufacturers in 2025

  The optical dome manufacturing sector is a cornerstone of advanced optical systems, enabling applications from aerospace navigation to underwater exploration. These hemispherical or hyper-hemispherica...
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  03/10/2025

  Top 10 LWIR Lens Manufacturers in China

  Long-wave infrared (LWIR) optics, operating in the 8–14 μm wavelength range, are indispensable for thermal imaging, surveillance, industrial automation, and defense systems. As demand for high-perfo...
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  03/10/2025

  Top 10 Aspherical Lens Manufacturers in 2025

  The global optics industry has witnessed remarkable advancements in aspherical lens technology, driven by manufacturers dedicated to precision engineering and innovative solutions. Among these leaders...
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  11/29/2024

  Nanjing Cngeir Successfully Participates in OREL EXPO 2024 in Moscow

  Nanjing Cngeir, a leader in the optical products industry, proudly participated in the OREL EXPO 2024, held from October 17 to 20at the Gostiny Dvor in Moscow, Russia. This renowned event serves as a ...