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optical lenes, 1. high quality., 2. high accuracy., 3. attractive price. - details see: https://www.machineto.com/optical-lenes-10219367

Optical lenes

Ruisen optical filter have colorless optical glass and color optical glass, transmission wavelength from 180nm to 2500nm.

Widely apply in many universities, research development, military, policy, medical instrument and finance etc.

1 Surface quality: 0/0, 40/20 ~ 80/50
2 Surface Accuracy: 1/10 in, 1/4 into 2 into
3 Thickness Tolerance: ± 0.01mm ~ ± 0.02mm
4 Parallelism: 5Arc second ~ 1Arc Minute
5 Processing range: up to 0.2mm thickness of the thinnest
6 Coating
7 steel