IR Optical Windows, Φ40.0mm, Thickness=3.0mm, Uncoated, Uncoated, BaF2 Single Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2915-YJL)

IR Optical Windows, Φ40.0mm, Thickness=3.0mm, Uncoated, Uncoated, BaF2 Single Crystal, model 190130, is manufactured by United Optical Technology Co., Ltd.
Barium Fluoride (BaF2) Windows are parallel plane plates commonly used as protective windows for electronic sensors or detectors of the external environment. When selecting a window, attention should be paid to the window material, transmittance and transmission band, surface shape, smoothness, parallelism and other parameters.
An IR UV window is a window designed for use in the outer infrared or ultraviolet spectrum. Windows are designed to protect electronic sensors, detectors or other sensitive optical components from saturation or light damage.

Diameter: Φ40.0mm
Coating: Uncoated
Material: (BaF2) Single Crystal
Surface Accuracy: λ/2@633nm
Thickness: 3.0mm
Parallelism: ＜1arcmin
Surface Quality: 20/10-40/20
Diameter Tolerance: +0.0/-0.1mm
Thickness Tolerance: ±0.1mm
Bevel: Protective Bevel 0.2~0.5mmX45°

Barium fluoride is a material used in the infrared band and has high transmittance in the 2-8μm band. The properties of barium fluoride are similar to calcium fluoride, but it has the advantage of being more resistant to high-energy radiation. However, it is less resistant to water.
Note: Because barium fluoride is a hazardous substance, be sure to wear gloves when operating and wash your hands after use.

IR Optical Windows, Φ50.0mm, Thickness=3.0mm, Uncoated, Uncoated, BaF2 Single Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2916-YJL)
IR Optical Windows, Φ12.5mm, Thickness=3.0mm, Uncoated, Calcium Fluoride (CaF2) Single-Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2917-YJL)
IR Optical Windows, Φ12.7mm, Thickness=3.0mm, Uncoated, Calcium Fluoride (CaF2) Single-Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2918-YJL)
IR Optical Windows, Φ25.0mm, Thickness=5.0mm, Uncoated, Calcium Fluoride (CaF2) Single-Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2919-YJL)
IR Optical Windows, Φ25.4mm, Thickness=5.0mm, Uncoated, Calcium Fluoride (CaF2) Single-Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2920-YJL)
IR Optical Windows, Φ40.0mm, Thickness=5.0mm, Uncoated, Calcium Fluoride (CaF2) Single-Crystal, United Optical Technology Co., Ltd (CAT#: STEM-OP-2921-YJL)