Concave parabolic mirrors are frequently used to accurately collimate point sources of visible and IR radiation. However, precise alignment is required to obtain optimal performance, and lengthy set-up times may be encountered, especially if the mirror is frequently moved.
SORL's TOAN Series Off-Axis Newtonian Collimators incorporates one of our precision, zero thermal-expansion, off-axis parabolic mirrors, interferometrically aligned in a rugged and compact housing. Twenty-one models are offered, providing unobstructed apertures from 4 to 14 inches, a variety of f/numbers, and two wavefront accuracy specifications. Below is a listing of our catalog models. Click Custom Collimator Worksheet for information on specifying a custom collimator.
Catalog TOAN Models >>> Click here for listing
Custom Collimator TOAN Worksheet
Strict attention has been paid to mechanical configuration and stability of the TOAN Series. Combined with SORL's dedication to quality in optical fabrication and superior test capabilities, the result is reliability and performance unparalleled by similar units commercially available today. The optical path is baffled, minimizing extraneous radiation which can limit signal-to-noise performance.
For applications in the visible and near-infrared, higher quality systems can provide a lambda/4 wavefront, as tested at 632.8 nm. Enhanced aluminum coatings to improve visible transmission and complete interferometric data are supplied.
BBS-0 1 Blackbody Radiation Source. Providing a 1" diameter cavity, and covering the ambient to 1000C temperature range, this unit features an emissivity of 0.99 and temperature stability of +/- 0.5C over a 4 to 6 hour period. Temperature control features digital temperature readout. Power requirements: 2A at 110V.
Customized Focal Plane Equipment. A variety of application requirements can be satisfied including remotely-selectable apertures, Four Bar Targets, Spatial Frequency Sweep Targets, Multi-Channel Illumination Systems, and Microprocessor Compatible Systems.
CH-01 Chopper. Variable frequency focal plane modulator for above.
AW - Aperture Wheel & Pinhole Aperture. A frequently desired option is our six-position focal plane aperture wheel with 0.05, 0.1, 0.25, 0.5, 1.0, and 5.0 mrad pinhole apertures. Additional interchangeable aperture wheels and targets may be purchased separately.
Also available: Extension plate, precision aperture, slit aperture and other custom interface equipment. Call or email us for details.