Aluminum Mirror
This is a vapor-deposited aluminum flat mirror with the substrate polished with high accuracy, designed for high reflectivity at any incident angle.
With four types to choose from; (TFAN/TFAQN) which is coated with aluminum only, (TFA/TFAQ) which is coated with a protective coating against accidental hard scratches, (TFAE) which is coated aluminum and a protective coating to increase the reflectance of ultraviolet and lastly, (OPBA/OPSQA) which provides Aluminum with protective coat on the optical parallel substrate.
For ultraviolet, visible and near-infrared light applications.
For low thermal expansion mirrors, we have (TFAQ/TFAQN) which is made of Synthetic fused silica that provides high rigidity and high precision surface quality.
Common Specifications
| Material | BK7, Synthetic fused silica, Hard glass (Pyrex® etc.） |  |
|---|---|---|
| Coating | TFAN/TFAQN: Al（(without protection coating） TFA/TFAQ/OPBA/OPSQA: Al＋MgF2(surface flatness λ/20 is Al＋SiO) TFAE: Al＋Dielectric multi-layer coating |
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| Parallelism | TFA/TFAN/TFAQ/TFAQN/TFAE：＜3′ OPBA/OPSQA ：＜2″ |
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| Incident Angle | TFA/TFAQ/TFAE：45° OPBA/OPSQA：0° |
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| Laser Damage Threshold | 0.25J/cm2(pulse width 10ns, repetition frequency 20Hz) | |
| Surface Quality (Scratch-Dig) | 40 － 20 | |
| Clear Aperture | 90% of actual aperture or circle or ellipse that contacts 90% spuare of dimension |
| Schematic | Outline Drawing |
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Outline Drawing |
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| Products List | ||||
|---|---|---|---|---|
| Circle | UV Enhanced Aluminum Flat Mirrors | Square | Rectangle | High Parallelism |
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