Shanghai Longway Special Glass Co., Ltd.
                                                                                                           
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Optical Grade Borosilicate Glass Discs with High Transparency

Price Negotiable
Price: NEGOTIATION
MOQ: 800 pieces
Delivery Time: Negotiable
Brand: LONGWAY
Product Description



Optical Grade Borosilicate Glass Discs with High Transparency


Material
The product consists of borosilicate glass, specifically engineered to meet stringent optical grade standards. This formulation ensures minimal inherent impurities and maximal material homogeneity, making it superior to standard glass or plastic sheets for critical applications.


Key Properties

  • Exceptional Light Transmission: The primary characteristic is its high transparency across a broad spectrum, often exceeding 92% visible light transmission with minimal wavefront distortion.

  • Superior Thermal & Chemical Stability: It exhibits outstanding resistance to thermal shock, capable of withstanding rapid temperature changes without cracking. The material is also highly inert, resisting water, acids, and solvents.

  • Excellent Optical Homogeneity: The glass is manufactured with a high Abbe number and low inclusion content, ensuring consistent refractive index throughout the disc and minimizing birefringence for precision applications.

  • Surface Quality & Hardness: The discs can be produced with fine surface finishes and are inherently scratch-resistant, maintaining clarity and integrity over long-term use.

Primary Function
These glass discs function as high-performance viewing windows, protective covers, and optical substrates. Their core role is to provide a durable, transparent barrier that protects sensitive internal components (like sensors, LEDs, or electronics) from dust, moisture, chemicals, and physical damage, while introducing minimal optical distortion.


Applications
These versatile discs are essential components in a wide range of high-tech and demanding environments, including:

  • Optical Systems: As windows, filters, and mirror substrates in spectrometers, projectors, and laser equipment.

  • Technical Lighting: Serving as protective covers for high-power LED arrays, UV lighting systems, and industrial process lamps.

  • Medical & Analytical Devices: Used in sight glasses for sensors, medical instrument windows, and laboratory equipment.

  • Industrial Machinery: Acting as durable viewing ports for furnaces, chemical process vessels, and automated inspection systems.

  • Consumer Electronics: For covers on high-end sensors and specialized displays.


In summary, optical grade borosilicate glass discs are a critical enabling material for engineers and designers building reliable systems where superior transparency, durability, and stability cannot be compromised.


Item Glass disc, Glass wafer, Glass substrate, Sight glass
Material Optical glass, Qurartz glass, Pyrex, borosilicate glass, Float glass, borofloat
Diameter Tolerance +0/-0.2 mm
Thickness Tolerance +/-0.2 mm
Processed By Cutting,Grinding,Tempering, Polishing
Working temperature Resisting high temperature shock
Surface Quality 80/50,60/40,40/20
Material Quality No scratches and air bubble
Transmission >92% for visible light
Chamfer 0.1-0.3 mm x 45 degree
Surface Coating Available
Usage Lighting system, industrial area.






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Have questions about our products or want to discuss a custom order? Our team is ready to help you.

Company Shanghai Longway Special Glass Co., Ltd.
Location Rm. 2111, Bldg. A, Tomson Center, No. 188, Zhangyang Rd., Shanghai, China
Contact Person Dai

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