Blog

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  04/11/2025

  The Critical Role of Interferometry in Precision Optical Manufacturing

  In the world of advanced optics, precision isn't just a goal; it's a fundamental requirement. From cutting-edge medical devices and high-power laser systems to sophisticated defense applicatio...
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  04/11/2025

  What is an Aspherical Lens?

  An aspherical lens is any lens with an optical surface that is not spherical, incorporating cylindrical, toroidal, and general freeform surfaces. In precision optics, the term “asphere” typically re...
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  04/11/2025

  Introduction to Optical Manufacturing at CNGeir

  The Basics of Making OpticsHave you ever wondered what happens between the time you send an optical design off to be manufactured and the time you receive the finished parts? Custom precision optics a...
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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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  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...