Single Surface Optical Flats, Φ304.8mm, Thickness=38.1±2mm, Uncoated, UV Fused Silica, United Optical Technology Co., Ltd (CAT#: STEM-OP-3054-YJL)

Single Surface Optical Flats, Φ304.8mm, Thickness=38.1±2mm, Uncoated, UV Fused Silica, model 192579, is manufactured by United Optical Technology Co., Ltd.
One optical surface of UV Fused Silica Single Surface Optical Flats has been precision ground and polished, and its flatness is highly accurate. It is often used as a standard plane to detect and identify the flatness error and grinding performance of high-smooth surfaces of other components.
Each optical flat crystal is finely ground and tested using a Zygo interferometer to ensure surface accuracy.

Diameter: Φ304.8mm
Thickness: 38.1±2mm
Coating: Uncoated
Material: UV Fused Silica
Surface Accuracy: λ/10@633nm
Parallelism: ＜1arcmin
Surface Quality: 40/20-60/40
Diameter Tolerance: ±0.2mm
Bevel: Protective Bevel 0.2~0.5mmX45°
Back: Fine Ground

UV fused silica glass material has a wider spectral range (185nm-2.1μm) than K9 optical glass. It has excellent transmittance in the ultraviolet band, has a lower refractive index, better uniformity, and a smaller thermal expansion coefficient. It also has higher chemical resistance and very low fluorescence, and can be used to make various optical components.

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