The BK7 standard windows are especially ideal for industrial and low power laser applications for He-Ne and Nd: YAG laser source. In the process of conventional laser wavelength coating, laser coating generally makes use of dielectric coating for the optimization of transmission and reflection performance at the designated laser wavelength, thus improving the laser damage threshold and enabling anti-reflection coatings to offer less than 0.2% reflectivity. Furthermore, we could offer a more favorable price for bulk purchases.
Technical Specifications
Description: Plano/Plano
Material: BK7
Diameter Tolerance: +0/-0.1mm
Thickness Tolerance: ±0.2mm
Flatness: λ/2 @632.8nm
Clear Aperture: 90%
Surface Quality: 40-20
Parallelism: <1arc min
Bevel: <0.25mm * 45 º
Design Wavelength: 587.6nm
Note: The following table shows the price per run of common single wavelength anti-reflection coating. Yet, many uncertain factors like size, time, quantity, and exchange rate might account for actual price fluctuations. If you are interested in our product, please don't hesitate to call us. Moreover, please skim through the page of coating film on our website for more information.
| Catalog No. | Diameter (mm) | Thickness (mm) | Price-Uncoated | AR @ 1064nm Double Sides | |||
| 5--10 | 50-100 | 10.0 | 50.0 | 100.0 | |||
| BJP-WB-6.0-3 | 6 | 3 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-10.0-3 | 10 | 3 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-12. 7-3 | 12.7 | 3 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-15.0-3 | 15 | 3 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-15.0-4 | 15 | 4 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-20.0-4 | 20 | 4 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-20.0-5 | 20 | 5 | $8.0 | $4.8 | $40.3 | $12.9 | $9.7 |
| BJP-WB-25.0-4 | 25 | 4 | $9.4 | $6.5 | $41.6 | $14.5 | $11.3 |
| BJP-WB-25.4-4 | 25.4 | 4 | $9.4 | $6.5 | $41.6 | $14.5 | $11.3 |
| BJP-WB-30.0-4 | 30 | 4 | $9.4 | $6.5 | $41.6 | $14.5 | $11.3 |
| BJP-WB-30.30-4 | 30x30 | 4 | $10.7 | $7.3 | $43.0 | $15.3 | $12.1 |
| BJP-WB-40.0-3 | 40 | 3 | $10.7 | $7.3 | $43.0 | $15.3 | $12.1 |
| BJP-WB-40.0-4 | 40 | 4 | $10.7 | $7.3 | $43.0 | $15.3 | $12.1 |
| BJP-WB-42.0-3 | 42 | 3 | $11.3 | $8.1 | $43.5 | $16.1 | $12.9 |
| BJP-WB-48.0-3 | 48 | 3 | $13.0 | $9.7 | $45.3 | $17.7 | $17.7 |
| BJP-WB-50.0-4 | 50 | 4 | $13.0 | $9.7 | $45.3 | $17.7 | $17.7 |
| BJP-WB-50.8-4 | 50.8 | 4 | $13.0 | $9.7 | $45.3 | $17.7 | $17.7 |
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