When exposed to white light, Optical Black™ absorbs 5 times more light than conventional black anodizing.
Test images above captured at a wavelength of 1064 nanometers.
To view test results for other black surfaces, click on the Scientific Test Results PDF in the resource section to the right.
Solution Significance
Optical Black™ was developed as a solution to the optical industries challenge to absorb stray light and minimize outgassing caused by other finishes. Some finishes and dyes actually break down in ultraviolet light and ‘outgas’ which deposit on the lens causing cloudiness and reduced accuracy. Optical Black™ utilizes an alternative color agent specifically designed for its absorption characteristics; does not outgas; and, meets Mil-A-8625. Advantages of Optical Black™ Anodize:
| Optical absorption characteristics are more uniform throughout the spectrum | Unlike conventional anodize for laser applications, Pioneer's Optical Black™ will absorb beams with wavelengths outside the visible, including solid state, gas and dye lasers. |
| Chemically more stable for lasers and UV light sources |
Will not discolor over time. Optical Black™ retains its absorptive characteristics throughout the infrared, visible and ultraviolet spectrum:
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| Low reflectivity and outgas rates | Optical Black™ won't cloud sensitive lenses with outgassed material |
