AUTOCOLLIMATOR PDF

Electronic Autocollimator[ edit ] The electronic autocollimator is a high precision angle measurement instrument capable of measuring angular deviations with accuracy down to fractions of an arc-second, by electronic means only, with no optical eye-piece. EAC Measuring with an electronic autocollimator is fast, easy, accurate, and will frequently be the most cost effective procedure. Used extensively in workshops, tool rooms, inspection departments and quality control laboratories worldwide, these highly sensitive instruments will measure extremely small angular displacements, squareness, twist and parallelism. Laser Analyzing Autocollimator[ edit ] Today, a new technology allows to improve the Autocollimation instrument to allow direct measurements of incoming laser beams. This new capability opens a gate of inter-alignment between optics, mirrors and lasers. This technology fusion between a century-old technology of Autocollimation with recent laser technology offers a very versatile instrument capable of measurement of inter-alignment between multiple line of sights, laser in respect to mechanical datum, alignment of laser cavity, measurement of multiple rollers parallelism in roll to roll machinery, laser divergence angle and its spatial stability and many more inter-alignment applications.

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What is an Autocollimator? An autocollimator is an optical instrument that is used to measure small angles with very high sensitivity. As such, the autocollimator has a wide variety of applications including precision alignment, detection of angular movement, verification of angle standards, and angular monitoring over long periods. Principles of Operation The autocollimator projects a beam of collimated light.

An external reflector reflects all or part of the beam back into the instrument where the beam is focused and detected by a photodetector. The autocollimator measures the deviation between the emitted beam and the reflected beam. Because the autocollimator uses light to measure angles, it never comes into contact with the test surface. Digital vs. Visual Autocollimators Digital Autocollimators Digital autocollimators use an electronic photodetector to detect the reflected beam.

Micro-Radian autocollimators take advantage of the latest detector technology including advanced silicon-based photodetectors and germanium-based detectors. The detector sends a signal which is digitized and processed using proprietary DSP-based electronics. Digital autocollimators are available as stand-alone bench top models, as USB-based models designed for use with a PC and as optical-head-only models designed for direct integration into OEM systems.

The exceptional accuracy and high resolution of digital autocollimators make them suitable for applications including the calibration of rotary tables, the verification of angle standards, and for remote or long term angular monitoring operations.

Additional uses include measurements of flatness or straightness and providing angular feedback in servo-controlled systems. Click here for a selection of Micro-Radian bench top digital autocollimators or click here to view the PC-based digital autocollimators. Please contact us to discuss your particular application. Micro-Radian visual autocollimators project a pinhole image.

The operator views the reflected pinhole image s through an eyepiece. Because the human eye acts as the photodetector, resolution will vary among operators.

Typically, people can resolve from 3 to 5 arc-seconds. Because the human eye is able to discern multiple images simultaneously, visual autocollimators are suitable for measuring multiple surfaces simultaneously. This makes them ideal alignment instruments in applications like aligning laser rod ends or checking parallelism among optics.

Visual autocollimators can also be equipped with an eyepiece reticle for aid in lining up test optics to a master reference. All Micro-Radian visual autocollimators are focused on infinity, making them suitable for use at any working distance. Micro-Radian also offers a visual autocollimator that uses a CCD camera in place of the eyepiece. The camera transmits a video signal via USB 2. Click here for a selection of Micro-Radian visual autocollimators. Visual Autocollimator Sample Applications Measurement of non-parallelism in windows, laser rod ends, and optical wedges by the two-face reflection method.

Measurement of squareness of an outside corner by aperture sharing.

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Collimator

What is an Autocollimator? An autocollimator is an optical instrument that is used to measure small angles with very high sensitivity. As such, the autocollimator has a wide variety of applications including precision alignment, detection of angular movement, verification of angle standards, and angular monitoring over long periods. Principles of Operation The autocollimator projects a beam of collimated light.

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History[ edit ] An English physicist Henry Kater was the inventor of the floating collimator , which rendered a great service to practical astronomy. He reported about his invention in January This can be used to replicate a target focused at infinity with little or no parallax. In lighting , collimators are typically designed using the principles of nonimaging optics. Optical collimators are also used as gun sights in the collimator sight , which is a simple optical collimator with a cross hair or some other reticle at its focus.

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Autocollimator

We have in-house infrastructure capabilities for all the processes involved in the manufacture of our products. This helps us to have total control of quality in our products and services. Our core competency is in prototype development and low volume production of opto-mechanical devices and systems where skilled labour is the major input. Our location in INDIA enables us to be the most cost effective in this field of activity compared to any other company in the world. The products described in this website constitute only the standard items we manufacture for research and industrial market. We also undertake contract manufacturing of opto-mechanical products in standard and custom specifications.

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