Achromatic — Air Spaced (A series) — A-12.7-A-R-B-X A-12.7-A-R-B-X

Waveplates · Cookbook p. 15

Achromatic — Air Spaced (A series) — A-12.7-A-R-B-X

Achromatic — Air Spaced (A series) — A-12.7-A-R-B-X is listed in Tower Optical's Optics Cookbook No. 9 on page 15. Crystal quartz + MgF2; retardance λ/4 & λ/2; retardation tolerance λ/100 over range; temp coefficient <λ/500 per °C; transmitted wavefront distortion λ/4 @633 nm; surface quality 20-10 scratch-dig; parallelism <1 arc min; AOI ±3° for <1% retardance change; damage threshold 2 J/cm² (8 ns @1064 nm), 500 kW/cm² CW Standard version is air-spaced; custom AWPs available. Contact sales to confirm current price, inventory, wavelength, coating, and configuration before ordering.

$755 per unit · catalog list; confirm current pricing

Stock / short lead time

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Volume pricing, custom sizes, coatings and mounts available — review your quote list or request a formal quote.

Specifications

Model number
A-12.7-A-R-B-X
Product family
Achromatic — Air Spaced (A series)
Size
Ø12.7 in 25.4 mm ring
Wavelength(s)
X: 1=465–610, 2=700–1000, 3=1200–1650, 4=610–850 nm
Retardation / band
.250 / .500
Material
Crystal quartz + MgF2 (air spaced)
Construction / type
Air gap (A)
Mounting option
25.4 mm anodized Al ring (B), ring thickness 8–9 mm
Coating
Broadband AR per range (Ravg <1% to <0.5%/surface)
Catalog source
Optics Cookbook No. 9, page 15

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