An aggravated form of fog in a polished surface caused by the scattering of light. The defects causing haze are larger than those causing fog, but singly are not large enough to be seen by the unaided eye.

A mold for glass or plastics often made of stainless steel to prevent pitting or oxidation in service. It is polished to the...

A piece of glass polished flat on one side, with a pair of polished faces that form an angle close to 180° on the other...

Spots in a polished glass surface that are opaque and have a silvery, metallic reflection.

A plate consisting of fused optical fibers with both surfaces ground and polished, and having the entrance surface curved to...

The series of rings or bands formed when light beams reflected from two polished, adjacent surfaces, placed together with a...

In the optical field, a piece of glass to which a lens or prism is cemented. The unit is ground and polished as a whole to...

A formed piece of glass, one surface of which has been ground and polished to the required curvatures.

A lens made from transparent plastic material. Lenses over 31/2 in. in diameter are usually machined, ground and polished....

A Michelson-type interference microscope used to produce interference patterns of reflective specimens through the...

A specially designed microscope for observing the etched surface of a polished metal specimen. The specimen is often laid...

Magnetorheological finishing (MRF) is a precision optics polishing technique used for shaping and finishing optical surfaces...

A term used to describe a saddle-shaped -- i.e., convex along one axis, concave along the other -- polished surface,...

Optical fibers fused together to form a solid, vacuum-tight assembly in the form of a slab or rod. Discs or rectangular...

Concave and convex spherical mirrors are types of curved mirrors that have surfaces shaped like segments of spheres. These...

A piece of glass, pyrex or quartz having one or both surfaces carefully ground and polished plano, generally flat to less...

A porous ceramic substance that is ground to a given optical form and on which a polished plate of glass is sagged by heat...

The substrate upon which a diffraction grating will be ruled. It must be dimensionally stable, and the surface must be...

A prism is a transparent optical element with flat, polished surfaces that refract light. It usually has two parallel bases,...

The final correction of a polished surface or of an angle to the specified precision.

A process used to control thickness and parallelism precisely during the production of plane-parallel plates. Elements are...

A crude area on the polished surface, produced during coarse grinding, that subsequent fine grinding does not remove, owing,...

A bubble at a polished surface that has been opened by grinding or polishing.

An imaging system designed to highlight small deviations in a planar reflective object such as a mirror. The system can be...

1. A measure of absorbed dose, equal to the energy imparted by ionizing radiation to a mass of matter corresponding to 1 J...

A polished plano-parallel plate that is contacted to an unpolished glass surface to permit see-through analysis of the...

1. A term used to describe the clouded appearance of an incompletely polished surface that scatters light. 2. The...

The approximately concentric waves that form on a surface that has been polished without an oscillation of the polishing lap.

A smooth, highly polished surface, for reflecting light, that may be plane or curved if wanting to focus and or magnify the...

A device used to detect elevation, pyramid and resolution errors in prisms and other components by bringing them into...

A prism having several plane polished surfaces, some to transmit light, some to reflect light, and some to serve both...

1. In a polished surface, concentric waves that appear as zones in Newton's rings when a test glass is applied. 2. An...

In the context of electronics and semiconductor manufacturing, a wafer refers to a thin, flat disk or substrate made of a...

A reflector having a surface that has been superpolished to reduce residual sleeks and scratches and microroughness so that...

A lens, both surfaces of which are ground and polished into a toric or cylindrical form.

A defect on a polished optical surface whose length is many times its width. Block reek is a chainlike scratch formed in...

A method of producing high-quality plastic optics in large volumes by injecting the heated, liquified plastic at high...