Protractors and angle gages measure the angle between two surfaces of a part or assembly

Form gages and form gaging systems are used to inspect parameters such as roundness, angularity, squareness, straightness, flatness, runout, taper and concentricity. 

Optical manufacturing services design, fabricate, finish and test optical components and optical elements

Optical and light microscopes use the visible or near-visible portion of the electromagnetic spectrum to magnify images of objects

Optical materials consist of glasses, plastics, ceramics and coatings with reflectivity, opacity, color or other properties tailored for mirror, lens, laser or other optics applications

Optical comparators are instruments that project a magnified image or profile of a part onto a screen for comparison to a standard overlay profile or scale. 

Optical modulators vary the amplitude and phase of a light beam; e.g., from a laser or by sound waves

Optical choppers are mechanical or electronic devices that pass and then interrupt a beam of light for a known brief interval.  Optical shutters are used to control the amount of time that a light sensitive material is exposed to radiation. 

Fiber optic switches route an optical signal without electro-optical and opto-electrical conversions

Optical time of flight sensors determine displacement and distance by measuring the time it takes light to travel from the instrument to a target and back

Specialty optical fiber is modified, usually by doping, for a specialized function. It consists of one or more transparent fibers enclosed in a protective covering

Optical component accessories are used in the design or maintenance of optical components and systems

Optical time domain reflectometers (OTDR) measure the elapsed time and intensity of light reflected along an optical fiber. They are useful tools for locating problems in an optical network as they can compute the distance to breaks or attenuation

Optical and optoelectronic assembly services companies design assemblies and systems for optical and optoelectronic devices

IC optical and optoelectronic devices are chips designed for optical and optoelectronic applications