Concave parabolic mirrors are frequently used to accurately collimate point sources of visible and IR radiation. However, precise alignment is required lớn obtain optimal performance, & lengthy set-up times may be encountered, especially if the mirror is frequently moved.
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girbakalim.net"s TOAN Series Off-Axis Newtonian Collimators incorporates one of our precision, zero thermal-expansion, off-axis parabolic mirrors, interferometrically aligned in a rugged và compact housing. Twenty-one models are offered, providing unobstructed apertures from 4 to lớn 14 inches, a variety of f/numbers, và two wavefront accuracy specifications. Below is a listing of our catalog models. Click Custom Collimator Worksheet for information on specifying a custom collimator.
+-Catalog Collimator ModelsClick to collapse
| Catalog TOAN - Telescope Off Axis Newtonian Collimators | ||
| Model | f Number | Aperture (in) |
| 4.5 - 4 | 4.5 | 4 |
| 6 - 4 | 6.0 | 4 |
| 5 - 5 | 5.0 | 5 |
| 6 - 5 | 6.0 | 5 |
| 3 - 6 | 3.0 | 6 |
| 4 - 6 | 4.0 | 6 |
| 5 - 6 | 5.0 | 6 |
| 6.7 - 6 | 6.7 | 6 |
| 5 - 8 | 5.0 | 8 |
| 7.5 - 8 | 7.5 | 8 |
| 6 - 10 | 6.0 | 10 |
| 5 - 12 | 5.0 | 12 |
| 8.3 - 12 | 8.5 | 12 |
| 5 - 14 | 5.0 | 14 |
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Ordering Information Example:
Order Number: TOAN 4.5-4
TOAN = Newtonian Off Axis Collimator4.5=f number4=Aperture (inches)
Features
Strict attention has been paid to lớn mechanical configuration and stability of the TOAN Series. Combined with girbakalim.net"s dedication to quality in optical fabrication & superior kiểm tra capabilities, the result is reliability và 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 và near-infrared, higher quality systems can provide a lambda/4 wavefront, as tested at 632.8 nm. Enhanced aluminum coatings to lớn improve visible transmission & complete interferometric data are supplied. Accessories
BBS-0 1 Blackbody Radiation Source. Providing a 1" diameter cavity, & covering the ambient lớn 1000C temperature range, this unit features an emissivity of 0.99 và temperature stability of +/- 0.5C over a 4 khổng lồ 6 hour period. Temperature control features digital temperature readout. Power nguồn 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 và 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, và 5.0 mrad pinhole apertures. Additional interchangeable aperture wheels & targets may be purchased separately.
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Also available: Extension plate, precision aperture, slit aperture & other custom interface equipment. Call or email us for details.