The AC - finder prism has been developed to precisely align mirrors to autocollimators and electronic autocollimators at short distances.

Autocollimators with straight viewing and adjustable focus setting are also available with mechanical double micrometer (AKGV MD) and with digital double micrometer (AKGV MDD).

The laser attachments D40 and D65 are useful for fast coarse adjustment of an autocollimator and electronic autocollimator. They are particularly useful for alignment of distant and very small mirrors, polygons or prisms.

Note: When using the laser attachment with an electronic autocollimator (ELCOMAT 3000, ELCOMAT vario or ELCOMAT direct), you do not need a power supply for the laser attachment because the attachment can be supplied directly from the electronic autocollimator.

The principle, function and layout resemble the focus adjustable autocollimator with 90° viewing. The eyepiece and eyepiece reticle are replaced by a mount for a CCD-camera and the autocollimation image is directly imaged on the CCD-chip when the camera is mounted. With no eyepiece reticle the displacement of the return image is determined on a video monitor or using a computer with corresponding software.

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Can be mounted to a D40 or D65 objective tube to focus collimated beams of collimators, testing telescopes or autocollimators to a specific finite distance.

The autocollimator with 60°-viewing is also available with mechanical double micrometer (AKW MD) and with digital double micrometer (AKW MDD).

The Type AKW MDD has a programmable measuring gauge, which allows the operator to read the angular displacement in arsec or mrad.

The Type AKG MD with mechanical double micrometer allows the measurement of tilting angles in two directions. The lateral movement of the eyepiece reticle in x- and y-direction in the image plane can be read from the scale of the micrometer drums. The scale division is 5 micrometer.

Another simple version of a focus adjustable autocollimator is an autocollimator with 90° viewing. The user's line of sight is at 90° to the objective axis. These kinds of autocollimators are used for vertical set-ups or for set-ups on optical tables or for applications where straight viewing is not feasible.

The geometrical beam splitter results in smaller image angles, but greater image brightness and less stray light. These autocollimators are used mainly with small targets. Due to their internal layout, these autocollimators cannot be used for measurement of triple mirrors or corner cubes. In most cases an autocollimator with physical beam splitter is recommended due to the larger measuring range of this configuration.

Lasers use these design research optics and laser technology with short pulse durations on the order of picoseconds, femtoseconds, or attoseconds.

An autocollimator with a reticle turret provides 6 selectable collimator reticles. The reticle turret allows a quick change of reticles for different measurement tasks.

Autocollimatorworking principle

The certified autocollimator test wedge can be used as a reference or for rapid on-site measurement accuracy testing of visual and electronic autocollimators.

This type AKR MD is used if a straight viewing telescope cannot be used from ergonomic point of view. It allows the measurement of tilting angles in two directions. The lateral movement of the eyepiece reticle in x- and y-direction in the mage plane can be read from the scale of the micrometers. The scale division is 5 micrometer.

For many years Vermont Phonics has worked closely with our partner MÖLLER-WEDEL Optical GmbH in developing the market for electronic autocollimators in the United States.  Our deep and insightful knowledge in the use and application of these highly precise measuring and test instruments assures you of selecting the right tool for the job.

For autocollimators with fixed focus setting the distance between reticles and objective is fixed. Usually the adjustment is made for infinity at a wavelength of 546 nm. Adjustment to other fixed distances or wavelength is also possible on demand.

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Light conditions are more favorable when large apertures are used, and the evaluation of the results is easier and more accurate. A long distance between test specimen and testing telescope demands a relatively large free aperture (or aperture ratio). For these kinds of measurements a relatively large aperture diameter should be used.

In contrast to the usually used eyepiece with f=14.7 mm an eyepiece with f=10 mm gives a larger magnification but lesser image field and eyepiece f=25 mm gives a smaller magnification but larger image field.

A focus adjustable autocollimator with a reticle turret provides 6 selectable collimator reticles. The reticle turret allows a quick change of reticles for different measurement tasks.

Years of experience, hard work and determination by MÖLLER-WEDEL Optical GmbH and its dedicated team  spent in the development, production and calibration of visual and electronic autocollimators have resulted in the ELCOMAT and ELCOMAT direct series.

The Type AKGV MDD has programmable measuring gauges, which allows the operator to read the angular displacement in arsec or mrad.

If you know the specific type of autocollimator you would like more information on, click on one of the buttons just below in the header.  If you would like general information about the different types of autocollimators available, then scroll down this page for the topic sections about autocollimators.

Flat, plane-parallel plates that are often used as protective barriers for electronic sensors or detectors from outside environments.

These are used to selectively transmit or reject a wavelength or range of wavelengths. Filters are used in spectroscopy, clinical chemistry, machine vision inspection, and more.

Depending on the magnification of the instrument a longer focal length of the objective leads to a greater measuring sensitivity and measurement accuracy. As the focal length increases, the measuring range (FOV) decreases proportionally. Additionally, the intensity of the light bundle received by the telescope decreases with increased focal length. A longer focal length affects the mechanical extension of the tube, as well.

The Type AKG MDD has programmable measuring gauges, which allows the operator to read the angular displacement in arsec or mrad.

Vermont Photonics offers the comprehensive line of Möller-Wedel Optical GmbH autocollimators with fixed or variable focus settings as well as with straight, 90° and 60° viewing (only with fixed focus setting).  Versions with reticle changer, integrated CCD camera mount, mechanical (MD) or digital double micrometer (MDD) are also available.

Autocollimatortelescope

MÖLLER-WEDEL OPTICAL offers autocollimators with adjustable focus setting with different focal lengths, diameters, eyepieces and adjustment ranges.

Our in-house capabilities have expanded from the UV to the NIR spectrum and fabrication of spherical and flat items with complex shapes. Our employees work tenaciously to offer reliable precision optics engineering and remarkably consistent on-time deliveries.

We use the highest quality materials and advanced optical engineering techniques to create custom and laser optic solutions. From fabrication to polishing, our precision optics manufacturing company readily produces custom precision optics, either off-the-shelf, engineered to your needs, or modified stock research products. We have over 30 years of experience manufacturing optics and supplying them across industries. An alpine research optical company is one of the best precision optical manufacturing companies in United States. Our facility offers many optic products such as co2 lenses, windows, optical components, optical filters, prisms and more. Check out our selection below.

Optical beamsplitters are used to split input light into two separate parts. Polarizing beam splitter cube or plate is common in illumination systems.

Autocollimatorprice

The simplest version of an autocollimator is an autocollimator with straight viewing. Autocollimators of this version are available with different focal lengths and tube diameters.

The measurement of the angles of plane mirrors in autocollimation is made with a parallel, or infinity focus, beam. Fixed, infinite focus is generally the best choice. For measurement tasks requiring an adjustable focal distance, use an objective tube with focus adjustment. Fixed focus tubes set at other than infinity can also be ordered.

Another simple version of an autocollimator is an autocollimator with 90° viewing. The user's line of sight is at 90° to the objective axis. These kinds of autocollimators are used for vertical set-ups or for set-ups on optical tables or for applications where straight viewing is not feasible.

The high variability of the autocollimators of MÖLLER-WEDEL OPTICAL GmbH allows you the perfect choice for your application. To help you determine which is most appropriate for your application, this section describes the influences of focal length of objective and eyepiece, objective aperture, fixed or adjustable focus setting and furthermore geometrical or physical beam splitter on the autocollimator.

The Type AKGV MD with mechanical double micrometer allows the measurement of deflection angles in two directions. The movement of the eyepiece reticle in x- and y-direction in the image plane can be read from the scale of the micrometer drums. The scale division (SD) is 5 micrometer.

​The principle, function and layout resemble the autocollimator with 90° viewing. The eyepiece and eyepiece reticle are replaced by a mount for a CCD-camera and the autocollimation image is directly imaged on the CCD-chip when the camera is mounted. With no eyepiece reticle the displacement of the return image is measured on a video monitor or using a computer and software.

Autocollimatorformula

Optical lenses are components designed to focus or diverge light. They may consist of a single or multiple elements. Optical lens are used from medical to laser processing industries.

MÖLLER-WEDEL OPTICAL offers the autocollimators with 90°-viewing and adjustable focus setting with different focal lengths, diameters, eyepieces and adjustment ranges.

AutocollimatorPDF

An autocollimator with straight viewing has the user´s line of sight co-linear with the objective axis. These autocollimators are preferably used in horizontal direction, where the eyepiece is at eye level. In a down-looking arrangement or on optical table 90°- or 60°-viewing is often more suitable.

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Our core strength is our ability to produce durable, long life, high damage threshold coatings on tight tolerance substrates, particularly in the UV. We support a wide variety of laser applications for leading edge equipment manufacturers in the semiconductor, medical, defense, industrial markets. We are also very proud to have many of the world renowned universities and national laboratories as permanent customers.

Vermont Photonics offers all of the MÖLLER-WEDEL OPTICAL GmbH autocollimator accessories providing a perfect match for your application or measurement tasks with a visual autocollimator.

Autocollimators with straight viewing are also available with mechanical double micrometer (AKG MD) and with digital double micrometer (AKG MDD).

Note: Versions with mechanical double micrometer (MD) or a programmable measuring gauge (MDD) are not available because of mechanical limits.

These electronic autocollimators are specifically designed for high-precision measurement tasks. The main benefits are higher accuracy, repeatability and a computer-based evaluation is possible.

The 60°-viewing is used in a horizontal position where the angled eyepiece is more ergonomic. Besides the standard version there are also versions with mechanical double micrometer and digital micrometer available. The main differences to the straight or 90°-viewing versions are the folding mirror with 60° between objective and corner cube. That limits the 60° variants in their focal length (f=300 & 500 mm) and tube diameter (65 mm).

Measuring tasks requiring different wavelengths of light or measurements requiring variable focus (finite and/or infinite) are best accomplished using focusable autocollimators. With the aid of the tube extension the position of the reticles in respect to the focal plane of the objective is changeable. As a result of that the former parallel beam converts into a convergent or divergent beam and yields a real or virtual image of the reticle.

The Type AKW MD with mechanical double micrometer allows the measurement of deflection angles in two directions. The movement of the eyepiece reticle in x- and y-direction in the image plane can be read from the scale of the micrometer drums. The scale division (SD) is 5 micrometer.

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Note: After removing the eyepiece cover ring all eyepieces can be upgraded with a C-Mount-Adapter to connect a CCD-Camera to the eyepiece.