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MICRO-CONTROLE / Spectra-Physics
Replicated Hollow Metal Retroreflectors

Replicated Hollow Metal Retroreflectors

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, mirrors, and prisms.

Replicated Hollow Metal Retroreflectors

Constructed from a single piece of aluminum, ensuring stability and accuracy unaffected by vibration.
Features front-surface reflection, making them achromatic with no wavelength-dependent refraction offset.
Available in four standard sizes with three precision return beam accuracy options.
Includes a 2.5" hexagonal retroreflector with 30 arc sec. return beam accuracy for less precision-demanding applications.
Coated with bare gold for high reflectance from near to long wave infrared.

Specifications

Material: Aluminum
Active Area: 0.50 to 1.00" diameter with 0.05 in. from edge; 1.50" diameter and 2.5" hexagonal with ≥90% effective diameter.
Apex - Base Distance: 0.50 to 1.50" diameter at 0.500 in.; 2.5" hexagonal at 0.550".
Mounting: Tapped hole 10-24 x 0.2 in. depth.
Coating: Bare Gold
Surface Quality: F/F (80/50) per MIL-F-48616
Coating Adhesion and Humidity Resistance: MIL-F-48616
Operating Temperature Range: -40 °C to 60 °C

Ordering Information
The document lists various models with their respective outside diameters and return beam accuracies, ranging from 0.500" to 2.500" and 2 to 30 arc seconds.

Diagrams and Graphs
Includes dimensional diagrams for the 50326 and 50394 retroreflectors and a typical reflectance curve for the gold reflective coating.

Catalog excerpts

Replicated Hollow Metal Retroreflectors -1

538 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 Replicated Hollow Metal Retroreflectors • Monolithic, all metal construction • Integral mount • Multiple return beam accuracy options • Rugged, impact resistant construction Our replicated hollow metal retroreflectors are monolithic or single piece construction. Fabricated from a solid piece of Aluminum, the facets of the mirror cannot shift and return beam accuracy is unaffected by vibration. Using front-surface reflection, the mirrors are achromatic and require no wavelength-dependent refraction offset. We offer 4 standard sizes of high-precision cylindrical retroreflectors, each with 3 different high-precision return beam accuracies. We also offer a 2.5" hexagonal shaped, retroreflector with 30 arc sec. return beam accuracy for applications that do not require the precision of our 50326 series retroreflectors. The mirrors are coated with bare Gold, which provides very high reflectance from the near infrared through long wave infrared. Mounting (Tapped Hole) Apex- Base Distance Outside Diameter Dimensional diagram of 50326 Retroreflectors 0.2 0.4 0.6 1.0 2.0 4.0 6.0 10.0 0.2 0 0.4 0.6 0.8 1.0 REFLECTANCE WAVELENGTH (ìm) Au GOLD Ordering Information Model Outside Diameter Return Beam Accuracy (arc sec) 50326-0502 0.500 2 50326-0505 0.500 5 50326-0510 0.500 10 50326-0802 0.750 2 50326-0805 0.750 5 50326-0810 0.750 10 50326-1002 1.000 2 50326-1005 1.000 5 50326-1010 1.000 10 50326-1502 1.500 2 50326-1505 1.500 5 50326-1510 1.500 10 50394-2530 2.500* 30 * Part 50394-2530 is hexagonal in shape Specifications Material Aluminum Active Area 0.50 to 1.00" dia.: to 0.05 in. from edge 1.50" dia. and 2.5" hex. :90% of effective diameter Apex - Base Distance 0.50 to 1.50" dia.:0.500 in. 2.5" hex.: 0.550" Mounting (tapped hole) 10-24 x 0.2 in. depth Coating Bare Gold Surface Quality F/F (80/50) per MIL-F-48616 Coating Adhesion MIL-F-48616 Humidity Resistance MIL-F-48616 Operating Temperature Range -40 °C to 60 °C .3133 -.0000 +.0003 x .080 DRILL .400 DEEP FLAT BOTTOM TAP 10-24 X .300 DEEP .0803 -.0000 +.0003 x .085 .55 VERTEX TO BASE DISTANCE .3543±.0005 Dimensional diagram of 50394 Retroreflector Typical reflectance curve of Gold reflective coating.

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