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• Technology flow chart  
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•  Cooperation clien    
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• Hong Kong Exhibition   

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• Dongguan Changan Chongyong Silicone Rubber Products Co., Ltd.Â

• Specializing in the production of high-precision silicone rubber products for foreign-invested enterprises
  More than 23 years experience in development, production and manufacturing
  The company has 5, 000 square independent industrial building
  The company has an excellent development and management team, including 12 employees with 10 years industrial experience
  Devoted to ODM/OEM custom made service of silicone rubber part
  Specialized in various difficult problems in silicone rubber product concerned by customers
• The company passed ISO9001: 2008 international quality system certification
  TS16949 Automotive Quality Certification System  
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•  
•                                                                Frequently Asked Questions
• 
  1. What services are provided by our company? 
• We provide customized ODM/OEM services from mold development, material development to silicone rubber products 
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• 2. About the sample
• It depends on what kind of sample you are looking for. If our company is based on customer-customized products that are customers who have intellectual property or patented products, then this requires customer authorization to provide.  
•  
• 3. Trading mode
• Under normal circumstances, our default is the FOB trading model, other circumstances need to contact the sales staff to negotiate 
•  
• 4. About quotation
• Need to provide product 2D or 3D drawings, demand, product materials, delivery locations, etc., special requirements products may also need to provide reference samples, try to be as detailed as possible, to facilitate our more accurate quote. In general, quotation sheets can be issued within 24 hours after receipt of drawings, and 72 hours for complex or special products. 

• 
  
  
   
•  
•  
• Technology flow chart  
•  
•  
• 
•  Cooperation clien    
•  
•  
• 
•  
•  
• Hong Kong Exhibition   

• 
  

• Dongguan Changan Chongyong Silicone Rubber Products Co., Ltd.Â

• Specializing in the production of high-precision silicone rubber products for foreign-invested enterprises
  More than 23 years experience in development, production and manufacturing
  The company has 5, 000 square independent industrial building
  The company has an excellent development and management team, including 12 employees with 10 years industrial experience
  Devoted to ODM/OEM custom made service of silicone rubber part
  Specialized in various difficult problems in silicone rubber product concerned by customers
• The company passed ISO9001: 2008 international quality system certification
  TS16949 Automotive Quality Certification System  
•  
• 
  
•  
•                                                                Frequently Asked Questions
• 
  1. What services are provided by our company? 
• We provide customized ODM/OEM services from mold development, material development to silicone rubber products 
•  
• 2. About the sample
• It depends on what kind of sample you are looking for. If our company is based on customer-customized products that are customers who have intellectual property or patented products, then this requires customer authorization to provide.  
•  
• 3. Trading mode
• Under normal circumstances, our default is the FOB trading model, other circumstances need to contact the sales staff to negotiate 
•  
• 4. About quotation
• Need to provide product 2D or 3D drawings, demand, product materials, delivery locations, etc., special requirements products may also need to provide reference samples, try to be as detailed as possible, to facilitate our more accurate quote. In general, quotation sheets can be issued within 24 hours after receipt of drawings, and 72 hours for complex or special products. 

Irregular Window

Windows are optical glass with ground and polished faces that are relatively parallel.They are used to isolate two physical environments while allowing light to pass.Windows made of BK7 material have high transmission in the visible spectral region, do not scratch easily, do not degrade under normal operating environment and hence do not need any special precaution or treatment. Anti-Reflective Coating will provide higher transmission.
When selecting windows, you should consider the following: material,transmission,scattering,wave front distortion,parallelism and resistance to certain environment.
China Star Optics offers all types of windows made from different materials.Special size and materials are also available upon request.In addition, we provide a variety of single layer or multiplayer anti-reflecting coating on Optical Windows.

Specification of our optical windows as follow:
*Material: BK7,UV-grade fused silica (JGS1) or other optical crystals materials
*Length tolerance:+/-0.01
*Width tolerance:+/-0.01
*Center thickness tolerance:0.005mm
*Surface quality:80-50 to 10-5 Scratch/Dig
*Surface flatness:<lambda to lambda/20
*Parallelism<=1min -- 2sec
*Clear Apenture:80% -- 100%

Round Optical Window,Optical Infrared Window,Optical Square Window,Irregular Window,Optical Flat Window

China Star Optics Technology Co.,Ltd. , https://www.realpoooptics.com