D-691 LASER ALIGNMENT AUTOCOLLIMATOR
The Model D-691 Laser Alignment Autocollimator provides industry with an autocollimator economical enough to permanently install in deliverable laser systems or for use as a Laser Alignment Autocollimator in house. The instrument incorporates such features as wide angle field of view (one degree), average nulling sensitivity of 5 arc seconds, autocollimates from small reflectors and comes complete with a power pack.
- Economical cost permits permanent installation in laser fixtures
- Monitors alignment of laser systems
- Full degree wide field
- 5 arc seconds nulling sensitivity
Introduction:
The Model D-691 is designed to provide an accurate and convenient means od determining angular deviation of an external reflector, simultaneously in azimuth and elevation. The D-691 is readily adaptable to any situation requiring an accurate and extremely compact designed instrument to monitor deviations of external reflectors. Deviation from an initial setting are determined at a glance by sighting through the eyepiece and noting the related positions of the straight through and right angle reticles.
For theory of operation, please refer to the Principles of Autocollimation Application Note.
Specifications:
| Sensitivity: | Nulls to 5 arc sec | |
| Measuring range: | 1° at 3 ft (1 m) ±4 arc min at 20 ft (6 m) | |
| Aperture Diameter: | 0.9 inch (23 mm) | |
| Eyepiece Magnification: | 12X (24X available) | |
| Focal Length: | 5 inch (127 mm) | |
| Eyepiece Reticle: | 3 arc sec wide crosshair | |
| Projected Reticle: | Dark field with 50 arc second diameter bright dot | |
| Light Source: |
Incandescent lamp with D-416, 6 VDC variable power supply 110V/ 60Hz or 220V/ 50Hz |
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| Barrel Material: | Hardened and polished Stainless Steel | |
| Overall Dimensions: | Barrel Diameter: | 1.5 inch (38 mm) concentric to optical axis |
| Height: | 2.12 inch (54 mm) | |
| Length: | 7.5 inch (190 mm) | |
| Weight: | 2 lbs (0.9 kg) | |
| Shipping Weight: | 4 lbs (1.8 kg) | |
Optional Accessories:
Model D-165 High Intensity Light Source. This option may be required when autocollimating off of low reflectivity surfaces or small mirrors.
Model D-212 Adjustable Stand
105-2761-691 Video Camera & Monitor with integral camera power supply. With this option readings become very easy even for unskilled personnel. Repeat readings are more accurate and faster. The camera eliminates any errors from parallax and greatly reduces eye fatigue. This option is easily added to existing Model D-691's.
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Support Documentation |
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D-691 Drawing |
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