To measure straightness of a beam with the use of Auto-Collimator. – To identify the principle of Auto-Collimator device. – To be able to draw conclusions about. Auto-collimator is an optical instrument used for measuring small angular differences. Relevant for: Autocollimator The autocollimator combines both optical tools, the collimator and the telescope into Operating principle of the autocollimator.

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Optical Angle Measurement – TRIOPTICS

Micro-Radian visual autocollimators project a pinhole image. Views Read Edit View history. Sub pixel resolution by evaluating image gray levels. All Micro-Radian visual autocollimators are focused on infinity, making them suitable for use at any working distance. Applications are roughly divided into two fields – optical and mechanical engineering. Autocolliimator right angle prisms for angular and pyramid errors.

Optical Angle Measurement

Website design and build by MM Design. Micro-Radian designs and manufactures autocollimaator of its autocollimators principlr is very capable of making modifications to existing instruments to suit customer requirements. The high resolution of electronic autocollimators is due to the evaluation of gray scale levels in the image which allows for sub pixel autocolkimator of the image position. Depending on the location of the reticle relatively to the focal plane, it results a real or a virtual image at a finite distance.

Critical Link, a provider of embedded electronics solutions, Written by Oren Aharon 21 July The detector sends a signal which is digitized and processed using proprietary DSP-based electronics. Principles of Operation The autocollimator projects a beam of collimated light.

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The alignment between lasers, vision systems, optics and state of the art mechanics becomes critical for high-quality products that autocillimator produced by these systems.

Principle of a telescope. Like in the collimator the image of the illuminated object reticle is projected by the objective lens to infinity. Click here for a selection of Micro-Radian PC-based digital autocollimators. Attaching a draw out tube to the reticle adapter to move the reticle out of the focal of the objective lens, the standard telescope becomes a focusing telescope. In this application the LAA will be first aligned to a mirror surface representing the mechanical interface.


Working principle of an Autocollimator. Click here for a selection of Micro-Radian bench top digital autocollimators or click here to view the PC-based digital autocollimators.


This procedure will ensure perfect alignment between the mechanical interface to its optical means. A device called a bore-sighter or collimator is used to accomplish this.

The technology presented allows fusing da ta of alignment autocollimator with incoming laser beam information to increase the overall performance and possible applications.

In an electronic autocollimator the eyepiece is replaced by an electronic camera with discrete sensor pixels e. Visual autocollimators rely on the operator’s eye to act as the photodetector. The L linear stage from PI strikes a balance of load capacity, This adjustment of the collimator is known as finite distance setting. Because of this special set up, the effective autocollimator aperture for bore sighting applications will exceed mm, these effective aperture conversion is a function of the length of the periscope used.

This set up in is known as infinity setting. What is an Autocollimator? A small angular offset between the two can also can be easily achieved. Please contact us to discuss your particular application.

The shift of the autocollimation image from the center of reticule in both x and y directions is proportional to the mirror’s t ilt angle. The image is then magnified and visually inspected by an eyepiece.

All these applications have a common trait with the original application and that is that a remote external target is necessary in order to perform the line of sights alignment. Alignment is achieved by new techniques involving special state-of-the-art electronic autocollimator and new las er straightness measurements. Alignment of lasers auocollimator an optical or mechanical datum, while adjusting the laser divergence angle along the optical autocollimaror will greatly improve the optical performance of laser systems.


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The autocollimation effect and name is derived from the fact autoollimator the same telescopic lens is used to project the image and collect its back reflection from a mirror element.

The operator views the reflected pinhole image s through an eyepiece. Click here for a selection of Micro-Radian visual autocollimators. Because the autocollimator uses light to measure angles, it never comes into contact with the test surface. Because of the laws of prinicple that double the angle of the back reflected beams, autocollimators are calibrated to show half the angle of the total incoming beam deviation.

Micro-Radian laser autocollimators have emitted beams as small as 1. An autocollimator is an optical instrument for non-contact measurement of angles.

Illuminating Products CES Modern technologies are characterized by extreme complexity, and by the fact that one system is built by fusing several technologies together. The alignment effect is achieved by a specially designed instrument called the Alingmeter.

Then the periscope will be mounted to cancel the parallax between the laser and the Autocollimayor, allowing adjustment of the laser to the Autocollimator and than in a similar way as previously explained adjust the sight to the LAA. First step, aligning of Autocollimator to the mechanical reference using a mirror.

A visual autocollimator can measure angles as small as 1 arc-second 4. This makes them ideal alignment instruments in applications like aligning laser rod ends or checking parallelism among optics. Typically, people can resolve from 3 to 5 arc-seconds.

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