| Customization: | Available |
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| Type: | Equilateral Prism |
| Usage: | Beam Dispersion |
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optical biometric prism (fingerprint identification prism)
Wedevelop and manufacture dozens of fingerprint prisms for domestic and abroad customers, with bright and dark background two types, clear ridge and valleylines image. Some high precision prism use import extinction ink painting, andtest under extreme high and low temperature, to guarantee its weatherresistance and long span life.
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Table of technical parameters of optical biometric prism |
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Material |
BK7 or other optical materials |
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Dimension specification |
Can be based on customer requirements |
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Dimension tolerance |
±0.05mm |
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Surface Flatness |
λ/4@632.8nm |
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Surface quality |
60/40 or higher |
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Coating |
Aluminum reflective + protection coating, single layer MgF2, black painting |
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Clear aperture |
>90% |
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