Neutral-Colored Glass Filter
Neutral-color glass filters, also called neutral-density (ND) filters, uniformly reduce light intensity without significantly changing spectral composition. They are named by average transmittance over 400nm-700nm at 2mm thickness; for example, ZAB70 denotes 70%. Of the ten glass types in this group, ZAB65, ZAB30 and ZAB5 are tested over 440nm-660nm instead. Applications include photography and video, optical measurement and experimental research, industry and machine vision, display and illumination testing, and astronomical observation.
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Overview
Specifications
| Parameter | Value |
|---|---|
| Material | Optical Glass, UVFS, Si, etc. |
| Dimensions | 1-200 mm |
| Surface Type [632.8nm] | 2λ to λ/10 @632.8nm |
| Effective Clear Aperture | 90% |
| Surface Quality | 80/50 to 40/20 S/D |
| Optical Density | OD1 to OD6 |
| Coating | According to Requirements |
Applications
Datasheet
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Supplier Information
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