Absorptive neutral density filter
An absorptive neutral density filter is an optical element that reduces light intensity by absorbing light. It can uniformly reduce light intensity without significantly changing the spectral distribution (color) of the light, thereby basically keeping the color characteristics of the light unchanged.; It is often used in photography to control exposure, enabling slow-shutter shooting under strong light. It can also be used in optical experiments and measurements to precisely adjust light intensity; in laser systems, it is used to adjust laser power to prevent excessive light intensity from affecting equipment or experiments. It is an important tool for adjusting light intensity in the optical field.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Absorbing glass |
| Dimensional Tolerance | +0.0/-0.2mm |
| Technical indicator photopurity | 80/50 |
| Optical Aperture | >90% |
| Surface Figure | <2λ@632.8nm |
| Parallelism | <5′ |
| Chamfer | Protection<0.5mmx45° |
| Outer Diameter Tolerance | OD±10%@design wavelength |
Datasheet
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Supplier Information
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