TOWER OPTICAL: Precision Optical Flat 4542-0020
Description
Precision optical flats are Fused Silica optical components that are used as a reference against which the flatness of an unknown surface can be determined. For less demanding jobs Tower offers them made from BK7 with a flatness specified as λ/4 or better. These optical flats may also be used as windows.
TOWER OPTICAL: Precision Optical Flat 4542-0020
Specifications |
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|---|---|
| Diameter: | 200 mm |
| Thickness: | 38 mm |
| Substrate: | Fused Silica |
| Flatness: | lambda/10 |
| Single Or Dual Surface: | Dual |
| Ref. Index: | 1.458 |
| Abbe Number: | 67.7 |
| Exp. Coefficient: | 0.55 × 10-6 Per degree Celsius |
| Surface Quality: | 60-40 scratch-dig |
| Parallelism: | 1 arc min |
Features
Single Sided and Double Sided Optical Flats
* Fused Silica
* Flatness of λ/10 or λ/20
* Single and double sided
* Easy to use
* From 25mm to 200mm
* Precision Ground and Polished
* Low cost BK7 with reduced quality
For pricing, technical or any other questions please contact the supplier
- No registration required
- No markups, no fees
- Direct contact with supplier
Contact Supplier
How to order?
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Ships from:
United States
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Sold by:
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On FindLight:
since 2015
Frequently Asked Questions
Precision optical flats are used as a reference against which the flatness of an unknown surface can be determined.
Precision optical flats are made of Fused Silica or BK7.
The flatness specification of the BK7 optical flats is λ/4 or better.
Precision optical flats are available in sizes ranging from 25mm to 200mm.
Yes, carrying cases are available for the precision optical flats. Customers can order CASE-S for up to 100mm for $20, and CASE-L for 150 & 200mm for $50.