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It is a property of light, where the white light splits into its constituent colours. Dispersion can be observed in the form of a prism. The other properties of light include diffraction and interference. So, what do you observe when you look out at the beautiful scenario? Whether the light gets reflected, dispersed, refracted, internally reflected, or diffracted.

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Optics, in a simple manner, is used to describe the behaviour of visible light, infrared light, and ultraviolet. Imaging is done with the help of a system called an image forming an optical system.

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. The processing creates a calibrated angular output which is traceable to the Swiss Federal Institute of Metrology (METAS).

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.

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When a beam of light strikes the water, a part of the light is reflected, and some part of the light is refracted. This phenomenon is called as total internal reflection. Read More: Total Internal Reflection.

Light is a form of energy that is in the form of an electromagnetic wave and is almost everywhere around us. The visible light has wavelengths measuring between 400–700 nanometres. The Sun is the primary source of light by which plants utilize this to produce their energy.

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Reflection is one of the primary properties of light. Reflection is nothing but the images you see in the mirrors. Reflection is defined as the change in direction of light at an interface in-between two different media so that the wave-front returns into a medium from which it was originated. The typical examples for reflection of light include sound waves and water waves.

Visual autocollimators rely on the operator's eye to act as the photodetector. 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.

The bending of light when it passes from one medium to another is called Refraction. This property of refraction is used in a number of devices like microscopes, magnifying lenses, corrective lenses, and so on. In this property, when the light is transmitted through a medium, polarization of electrons takes place which in turn reduces the speed of light, thus changing the direction of light.

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.

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In physics, the term light also refers to electromagnetic radiation of different kinds of wavelengths, whether it is visible to the naked eye or not. Hence, by this, the gamma rays, microwaves,  X-rays, and radio waves are also types of light. Learn more by visiting the links below.

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Micro-Radian is the only company that manufactures autocollimators with laser light sources. Micro-Radian laser autocollimators have emitted beams as small as 1.0 mm in diameter. These specialized instruments are designed for measuring small test parts including silicon components, miniature mirrors and lenses, and fiber optic components. They are also ideal any time very low noise measurements or very long distance measurements are desired.

Wave optics is the branch of optics that studies the diffraction, interference, polarization, and other phenomena for which the ray approximation of geometric optics is not valid.

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Micro-Radian autocollimators are available in both analog or digital "servo" versions suitable for providing high speed, real-time angular monitoring in OEM servo-feedback and servo-feedforward systems. Typically, the servo-version of the T40 or T30 optical heads are selected because of their compact, lightweight size and wide field of view. Click here for a selection of Micro-Radian analog autocollimators. Click here for a selection of Micro-Radian PC-based digital autocollimators.

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.

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Hence this type of property is called wave-particle duality and the study of light in the area of physics is known as Optics.

Ray optics is also called geometrical optics. It is a branch of science that describes light propagation in terms of “rays”.

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 2.0 and the images are viewed on a monitor.

The rate at which the light travels in free space is called the Speed of light. For example, light travels 30% slower in water when compared to vacuum.

Micro-Radian designs and manufactures all of its autocollimators and is very capable of making modifications to existing instruments to suit customer requirements. We are also fully capable of designing and manufacturing specialized autocollimators as the needs require.

Optics is a branch of physics that deals with the determination of behaviour and the properties of light, along with its interactions with the matter and also with the instruments which are used to detect it.

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.

Like all the different types of light, the spectrum of visible light is absorbed and emitted in the form of tiny packets of energy called photons. These photons have both the properties of a wave as well as a particle.

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. Available outputs include a touchscreen LCD display on the bench top models as well as a combination of USB 2.0, RS-232, and analog signals.