D-275 AUTOCOLLIMATING ALIGNMENT TELESCOPE
The Model D-275 Autocollimating Alignment Telescope can be focused from 16 inch (400 mm) to infinity to align any number of points along its optical axis. Due to the fact that the mechanical axis of the tube and the optical axis of the instrument are parallel within 3 arc seconds, the instrument is easily adaptable to jigs and setups using a dial indicator.
A reflective surface may be established normal to the optical axis by utilizing the autocollimating feature. The Model D-275 is designed to provide the most-needed features as standard equipment at a low price.
|Focusing Range:||16 inch (406 mm) to infinity|
|Resolution:||5 arc sec|
|Field:||26 inch at 100 ft (660 mm at 30 m)|
|Focal Length:||14.3 inch (363 mm)|
|Aperture:||1.34375 inch (34 mm)|
|Light Source:||Incandescent lamp with D-416, 6 VDC variable power supply 110V/ 60Hz or 220V/ 50Hz|
|Reticles:||Autocollimating:||Fifteen concentric circles 1 arc min apart
(30 arc min field)
|Alignment:||Cross hair with 0.000 25 inch (6.5 μm) wide lines|
|Barrel Dimensions:||Length:||12.25 inch (311 mm)|
|Diameter:||2.249 66±0.000 25 inch (57.135 - 57.148 mm)
Optical Axis Concentric ±0.000 3 inch at 16 Inch
(±7.6 μm at 400 mm)
|Overall Dimensions:||Height:||4.875 inch (124 mm)|
|Width:||3.1875 inch (56 mm)|
|Length:||20.375 inch (518 mm)|
|Height to Aperture Center:||
1.325 inch (34 mm)
|Barrel:||17.4 PH stainless steel hardened to Rockwell C 45-47|
|Barrel:||Polished Chrome Plate|
|Weight:||13 lbs (5.9 kg)|
|Shipping Weight:||24 lbs (10.9 kg)|
Model D-165 High Intensity Light Source. This option may be required when autocollimating off of low reflectivity surfaces or small mirrors.
Model D-247 Table Instrument Stand
Model D-254 Adjustable Instrument Stand
Model D-276 Adjustable Instrument Stand
Model D-277 Adjustable Instrument Stand
Model D-295 Adjustable Instrument Stand
Model D-416B 220V 50Hz Power Supply
105-2761-275 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-275s.