Transmission Flats Optic

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Reference number: PPG-TF

Transmission Flats Optic

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Description

Coating options:


The Transmission-Flats are uncoated, available with a standard or a custom coating. The front or the reference side is coated for improving the contact with a partial reflector, or alternatively the reverse side is provided with an antireflection coating for the removal of the secondary fringe pattern.


Specifications:

P/N   Material Dia
(inches)		 C/A
(inch)		 Style Coating
CO1797 Transmission Flat Fused Silica, FS-OA 4.5 4 Ring mounted Standard Coating
CO1798 6.5 6
CO1798 13 12
CO1797-C 4.5 4 Glass only
CO1798-C 6.5 6
CO1798-C 13 12
CO1797-U 4.5 4 Uncoated
CO1798-U 6.5 6
CO1798-U 13 12

Standard Coating:
Fornt Surface R=4%, T=63% +/- 5% or Back surface AR Coating at 632.8 nm

  • Flatness: ?/20 or better @ 633 nm P-V over 95% of aperture
  • Irregularity: ?/20 or better @ 633nm P-V over 95% of aperture
  • Surface Quality: 10:5 over 95% of aperture
  • Clear Aperture: 95% of the surface