Model TX Flat 4” and 6”
- Fused silica
- Surface accuracy of λ/20
- Wedge of 15 arc minutes
- Clear aperture: 4” TX Flat = 100 mm
6” TX Flat = 153 mm - Compatible with bayonet-style mount
- storage case included
- Low cost
The surface flatness of plano elements such as mirrors, prisms and windows can be verified by the use of an interferometer in conjunction with a transmission flat.
Transmission flats are used when measuring the surface flatness or transmitted wavefront of flat surfaces or optics. The Tower 4” TX Flat provides a clear aperture of 100mm, while the Tower 6” TX Flat provides a clear aperture of 153mm. The TX Flat is an assembly of a precision optical window mounted in an anodized aluminum ring that provides mounting compatibility with most bayonet style housings. The transmission flat assembly is supplied in an aluminum shipping/storage case.
The TX Flat is supplied with one surface ARcoated with R≤ 0.25% @ 633 nm. The uncoated side has a reflectivity of about 4%. It is accompanied by a documented interferogram and Certificate of Compliance.
| Ordering Information | |||||||||
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| Specifications | |||||||||
| Window | |||||||||
| Material: Fused Silica | |||||||||
| Front Surface Reference: λ / 20 | |||||||||
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| Surface Quality: 20/10, both sides | |||||||||
| Wedge: 15±1 arc minute | |||||||||
| Protective Bevel: 1.0mm × 45° | |||||||||
| Anti Reflective Coating: one side, R≤0.25% @ 633nm | |||||||||
| Housing | |||||||||
| Material: Aluminum, 6061-T6 | |||||||||
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| Finish: Black Anodize | |||||||||
| Case | |||||||||
| Material: Wooden | |||||||||
| Size: 4” TX Flat ~170 × 170 × 50mm 6” TX Flat ~220 x 220 x 70 mm |
We make custom versions of everything on this site. Send us your drawings or specifications and we will provide a quotation.