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MICRO-CONTROLE / Spectra-Physics
Precision Right-Angle Prisms

Precision Right-Angle Prisms

Product catalog summary

Technical Reference and Applications
This document provides a comprehensive guide on lens selection, focusing on spherical, cylindrical, and specialty lenses, as well as optical systems and mirrors. It includes detailed specifications for precision right-angle prisms made from BK 7 and UV grade fused silica, designed for demanding applications.

Precision Right-Angle Prisms

Materials: BK 7 and UV grade fused silica, precision polished for high tolerance.
Sizes: Available in 12.7 mm and 25.4 mm.
Coatings: Standard broadband AR coatings to reduce surface losses without affecting total internal reflection or acceptance angle.
Beam Deviation: Less than 3 arc minutes.
Surface Flatness: Measured at 632.8 nm over the clear aperture.
Clear Aperture: At least 80% of the central area.
Dimensions: Tolerance of +0/-0.25 mm.
Chamfers: 0.25–0.50 mm face width at 45° ±15°.
Cleaning: Non-abrasive methods recommended, using acetone or isopropyl alcohol on lens tissue.
Damage Threshold: Varies by coating, with specifications for continuous wave (CW) and pulsed laser applications.

Ordering Information
To order, append the coating code (AR.14, AR.16, AR.18, or AR.33) to the substrate number. For example, 05BR08+AR.14 becomes 05BR08AR.14.

Model Specifications

05BR08: 12.7 mm, BK 7, surface flatness λ/4, surface quality 20-10.
05SR20: 12.7 mm, UV Fused Silica, surface flatness λ/10, surface quality 10-5.
10BR08: 25.4 mm, BK 7, surface flatness λ/4, surface quality 20-10.
10SR20: 25.4 mm, UV Fused Silica, surface flatness λ/10, surface quality 10-5.

Additional specifications for antireflection coatings can be found on page 455, and the ULTIMA® Gimbal Prism Mount is detailed on page 693.

Catalog excerpts

534 O p t i c s Phone: 1-800-222-6440 • Fax: 1-949-253-1680 TECHNICAL REFERENCE AND FUNDAMENTAL APPLICATIONS CYLINDRICAL AND SPHERICAL LENSES LENS SELECTION GUIDE SPECIALTY LENSES PRISMS MIRRORS OPTICAL SYSTEMS OPTICS SETS Precision Right-Angle Prisms These BK 7 and UV grade fused silica right-angle prisms are precision polished to tight tolerances for more demanding applications. We offer 12.7 and 25.4 mm prisms with a selection of our standard broadband AR coatings, which reduce surface losses but do not affect total internal reflection or the acceptance angle. 90° Reflection 180° Retroreflection • Precision polished surfaces • BK 7 or UV fused silica • Beam deviation less than 3 arc min • 12.7 and 25.4 mm sizes • AR coatings improve transmission Specifications Material BK 7, grade A, precision annealed optical glass UV grade fused silica Surface Flatness Specifications below at 632.8 nm over the clear aperture Clear Aperture central 80% Beam Deviation <3 arc min Dimensions +0/-0.25 mm Chamfers 0.25–0.50 mm face width x 45° ±15° Antireflection Coating Uncoated or three faces multilayer AR coated (see page 455 and 455 for specifications) Cleaning Non-abrasive method, acetone or isopropyl alcohol on lens tissue recommended (see page 622) Damage Threshold AR.14, 1000 W/cm2 CW, 2 J/cm2 with 10 nsec pulses, typical AR.16, 1000 W/cm2 CW, 2 J/cm2 with 10 nsec pulses at 1064 nm AR.18, 1000 W/cm2 CW, 2 J/cm2 with 10 nsec pulses at 1064 nm AR.33, 2000 W/cm2 CW, 3 J/cm2 with 10 nsec pulses at 1064 nm Ordering Information To order, append the coating code AR.14, AR.16, AR.18, or AR.33 to the substrate number. For example, 05BR08+AR.14 = 05BR08AR.14 Model Dimensions, A=B=C (mm) Material Surface Flatness Surface Quality 05BR08 12.7 BK 7 ë/4 20-10 05SR20 12.7 UV Fused Silica ë/10 10-5 10BR08 25.4 BK 7 ë/4 20-10 10SR20 25.4 UV Fused Silica ë/10 10-5 Antireflection coating specifications can be found on page 455. A B C ULTIMA® Gimbal Prism Mount page 693

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