Shanghai Longway Special Glass Co., Ltd.
| Payment Terms | D/P,T/T,Western Union |
| Supply Ability | 12000 Pieces per Month |
| Packaging Details | electrolytic capacitor paper,foam,carton |
| Item | Optical window |
| Surface | Clear and transparent |
| Transmission | >90% for visible light |
| Coating | Available |
| Processing | Tempering and polishing |
| OEM | Available |
| Brand Name | LONGWAY |
| Model Number | LW019328 |
| Certification | ISO9001 |
| Place of Origin | Shanghai, China |
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Product Specification
| Payment Terms | D/P,T/T,Western Union | Supply Ability | 12000 Pieces per Month |
| Packaging Details | electrolytic capacitor paper,foam,carton | Item | Optical window |
| Surface | Clear and transparent | Transmission | >90% for visible light |
| Coating | Available | Processing | Tempering and polishing |
| OEM | Available | Brand Name | LONGWAY |
| Model Number | LW019328 | Certification | ISO9001 |
| Place of Origin | Shanghai, China | ||
| High Light | Durable CaF2 Baf2 Znse Optical Windows ，CaF2 Baf2 Znse Optical Lens ，Optical Windows Lens for Night Vision | ||
Durable CaF2 Baf2 Znse Optical Windows Lens for Long Wave Infrared Camera & Night Vision
1. Core Materials & Infrared Specialty:
Materials: This product encompasses three key infrared-transmitting materials:
Calcium Fluoride (CaF2): For mid to long-wave IR, with excellent laser damage threshold.
Barium Fluoride (BaF2): For broad-band IR from mid to far-infrared, resistant to harsh environments.
Zinc Selenide (ZnSe): The primary material for Long Wave Infrared (LWIR, 8-14μm), offering exceptional transmission and low absorption loss.
Form: Fabricated as flat optical windows or simple lenses (planar-concave/convex).
2. Defining Physical & Optical Properties:
High Infrared Transmission: All three materials offer superior transparency in the critical LWIR atmospheric window, allowing thermal radiation to pass through with minimal loss.
Durability & Environmental Resistance: Engineered to be chemically resistant and withstand harsh outdoor conditions, including moisture and abrasion. ZnSe often receives a durable diamond-like carbon (DLC) coating for protection.
Low Dispersion & Aberration: Provide clear, undistorted thermal imaging by minimizing optical errors in the IR spectrum.
Thermal Stability: Maintain optical performance across a wide operational temperature range.
3. Primary Function in a System:
Protective Entrance Window: Serves as the first external element, physically sealing and protecting sensitive infrared camera or night vision detector arrays from dust, moisture, and physical damage.
Critical Spectral Filter: Its material properties inherently act as a bandpass filter, primarily allowing LWIR radiation (body heat, thermal signatures) to enter while blocking unwanted shorter wavelengths.
Pressure & Environmental Barrier: Maintains the internal vacuum or controlled atmosphere of the detector dewar or housing.
4. Target Applications & Industries:
Thermal Imaging & LWIR Cameras: For military, industrial, security, and scientific thermal cameras.
Night Vision Systems: In driver enhancement systems (DEVS), surveillance, and navigation equipment.
Industrial Process Monitoring: For non-contact temperature measurement, predictive maintenance, and furnace viewing.
Aerospace & Defense: In missile guidance seekers, forward-looking infrared (FLIR) systems, and surveillance pods.
Research & Spectroscopy: In FTIR spectrometers and laboratory IR analysis.
| Item | Optical Window, Glass disc, 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 | Laser System, Lighting system, industrial area. |
Company Details
Business Type:
Manufacturer,Agent,Exporter,Trading Company,Seller
Year Established:
2008
Total Annual:
1000000-5000000
Employee Number:
30~100
Ecer Certification：
Active Member
Introduction Shanghai Longway Special Glass Co., Ltd. has been a professional supplier in the glass industry for over 20 years. With its expertise spanning across various fields, including optics, laser, imaging, and lighting etc., the company has established itself as a trusted partner for busines... Introduction Shanghai Longway Special Glass Co., Ltd. has been a professional supplier in the glass industry for over 20 years. With its expertise spanning across various fields, including optics, laser, imaging, and lighting etc., the company has established itself as a trusted partner for busines...
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