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| Coad | 670151 | Substrate | N-BK7 | |
| Type | Ground Glass Diffuser | Clear Aperture | 90% CA | |
| Diameter(mm) | 25.40 | Diameter Tolerance | +0.00/-0.25mm | |
| Thickness(mm) | 2.00 | Thickness Tolerance | ±0.2mm | |
| Plate Grit | 120 | Parallelism | ≤3 arcmin | |
| Frosted Surface | - | Wavelength | 400 - 700nm | |
| Central Aperture Size | - | Surface Quality | 80-50 | |
| Aperture | 8 | Coating Type | AR Coating | |
| Coating Specifications | Ravg<0.25%@400-700nm | |||
N-BK7 ground glass diffusers can be used in a wide range of applications requiring Gaussian scattering. During use, the frosted polished surface should face away from the light source. LBTEK ground glass diffusers are available in three sizes: Ø12.7 mm, Ø25.4 mm, and Ø50.8 mm, with options for single-sided or double-sided frosted surfaces. Single-sided diffusers are offered in both uncoated and AR-coated versions for 400–700 nm, while custom AR coatings for 700–1100 nm and 1100–1700 nm are also available. LBTEK provides a variety of frosted surface specifications to achieve different scattering effects, ranging from coarse to fine. Generally, coarse grits (120, 220) produce stronger diffusion but lower transmission, whereas fine grits (600, 1500) reduce diffusion while providing higher transmission.
LBTEK offers a variety of frosted surface specifications to achieve scattering effects ranging from coarse to fine. In general, coarse grits (120, 220) provide stronger diffusion but lower transmission, while fine grits (600, 1500) reduce diffusion while providing higher transmission. LBTEK circular ground glass diffusers can be mounted in LBTEK standard lens sleeves, fixed lens holders, or various coaxial mounting plates, allowing users to select the most suitable mounting method for different application scenarios. In addition to standard products, LBTEK also provides custom AR coating services for 700–1100 nm and 1100–1700 nm ranges. For specific customization requirements, please contact LBTEK technical support.
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