Optical lens
——Custom Germanium Window and Optical Lens Solutions
China Star Optics
Our Optical lens solutions and Germanium Window assemblies deliver unmatched precision and reliability—engineered for excellence, designed with innovation, and customized to meet diverse infrared and imaging needs.
Products
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![Precision Optical Lens Solutions for Aerospace & Security]()
MWIR Lens
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![Germanium Window Manufacturer | Reliable Infrared Protection]()
Dome lens
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![Industrial Optical Lens Solutions for Imaging & Sensing]()
Optical filter
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![High-Quality Optical Lens Production | ISO Certified Factory]()
Waveplate
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![Premium Optical Lens Assemblies | Custom IR Lens Production]()
Optical window
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![Optical Lens Solutions for Medical Imaging & Industrial Use]()
Mirror
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![Germanium Windows with Custom Edge Profiles & Thin Substrates]()
Grating
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![Germanium Window Fabrication | Rugged Thermal Imaging Optics]()
Prism
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![Premium Optical Lens Assemblies | Custom IR Lens Production]()
Lens
End-to-End Quality Assurance
Every optical lens and infrared component undergoes strict quality control, including interferometric testing, environmental cycling, and final performance verification. Certified under ISO 9001, CSOPT ensures reliable performance, long service life, and consistent quality for harsh environments.
Why Choose CSOPT for Optical Lenses & Infrared Solutions?
Over 18 years of expertise in MWIR lenses, optical lenses, and Germanium windows.
Full-service production: from design to custom infrared optics manufacturing.
Trusted by global industries: aerospace, defense, medical, and industrial sectors.
Strong R&D team with advanced engineering capabilities.
CSOPT | Precision Optical Lens & Infrared Solutions Since 2005
Founded in 2005, CSOPT (China Star Optics) has become a leading manufacturer of optical lenses and precision infrared optics. Our 2,000 m² facility integrates design, R&D, and manufacturing, ensuring rapid response to custom orders. With a strong team of PhD researchers and experienced infrared engineers, we deliver high-performance solutions for aerospace, security, medical imaging, and industrial automation.
MWIR Lens & Custom Infrared Lenses
CSOPT specializes in designing and producing MWIR lenses and cooled infrared lenses for demanding imaging applications. Our advanced optical architecture minimizes distortion, while precision mechanics reduce cold reflections and maintain optical alignment within ±3 pixels. From wide-angle to high-magnification, our lenses deliver sharp, stable images across extreme temperature ranges.
Germanium Windows & Germanium Optics
For mid-wave and long-wave infrared systems (3–12 µm), durability and high transmission are essential. CSOPT manufactures Germanium windows and customized Germanium window assemblies with excellent transmittance and mechanical strength. Whether you require specialized coatings, custom edge profiles, or ultra-thin substrates, we provide tailored solutions. Our production line also delivers precision Germanium optics for thermal imaging cameras, laser range finders, and infrared sensors.
Providing Solutions For A Wide Range Of Applications
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Infrared thermal imager
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MWIR lens
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Haiphong
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Night vision lens
Advantage
Production & Inspection Equipment
As a leading Optical lens manufacturer, CSOPT has introduced advanced production equipment including CNC milling and grinding machines, high-precision polishing systems, ultrasonic cleaning machines, coating equipment, and clean benches. For testing, we use internationally recognized instruments such as spectrophotometers, goniometers, sphericity and laser interferometers, Sylvac, Trioptics spherometers, and ZYGO-GPI systems—ensuring consistent accuracy and reliability.
Quality Management Certification
Since 2010, our factory has been certified under the ISO 9001 quality management system. Every production process follows ISO 9001:2015 standards, ensuring that each Optical lens and Germanium Window meets strict international requirements. All products comply with RoHS & REACH standards, and outgoing quality reports are provided to ensure transparency and reliability.
Production Capacity
Our annual production capacity for Optical lenses and infrared components, including Germanium Window assemblies, reaches 300–500 million pieces. Delivery time and quantity are tailored to each project’s specific requirements, guaranteeing flexibility for both custom orders and large-scale production.
Experience & Global Reach
With over 15 years of expertise in Optical lens and infrared optics manufacturing, China Star Optics Technology Co., Ltd. has built long-term partnerships with more than 500 customers worldwide. Our persistent focus on innovation and precision allows us to deliver high-performance Germanium Windows and custom optical components trusted across aerospace, defense, medical, and industrial sectors.
CHOOSE US
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Precision machining, customized according to demand
Strong production team, R & D team, strength guarantee.
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Strict quality control system and inspection process
Powerful after-sales service system, online all year round, the perfect answer to after-sales customer sales series of a quest.
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Collaborative design, long term cooperation relationship
ISO 9001 certified, RoHS compliant, quality reports available.
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Sign NDA, drawings and customer information strictly confidential
We consistently protect our customers' design information and other business information.
2005
Year Established
2000
+ Square Meters Factory Base
500
+ Customers From Different Countries
Exhibition
