Calcium fluoride window
Calcium-fluoride windows and lenses are used in ultraviolet and infrared spectroscopy. CaF2 windows, CaF2 lenses, wedge plates, and CaF2 windows with diameters of 220mm or more can be customized to customer requirements.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Calcium Fluoride single crystal (UV or IR) |
| Diameter Tolerance | +0.0, -0.1 |
| Thickness Tolerance | ±0.1 mm |
| Clear Aperture Dimension | >85% |
| Parallelism | 3 arc minute |
| Surface Finish | 60-40 scratch and dig |
| Edge Bevel | Protective (<0.2mm×45°) |
| Coating | Optional |
| Knoop hardness [No unit stated in the body text] | 158.3 |
| High-transmittance wavelength band [Application in the body text, without quantified transmittance] | 250nm~7μm |
| Standard circular specifications [Round Shape; No dimension unit in the list; Source Φ10×0.5 appears twice] | Φ4x0.5 Φ6x1 Φ8x1 Φ10x0.5 Φ10x0.5 Φ12.7x1 Φ15x1 Φ18x1 Φ20x2 Φ25x1 Φ25.4x1 Φ25.4x2；Φ25.4x3 Φ30x2 Φ30x3 Φ38.1x3 |
| Customizable diameter [Summary: Windows customized to customer requirements] | 220 millimeters or more |
| Maximum available diameter [Precaution 2] | Maximum 150 |
| Typical thickness [Precaution 3] | 1、2、3、4 |
| Other thicknesses [Precaution 3] | 1.0~20.0 mm |
Applications
Datasheet
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