The grinding and polishing of rock samples, to a thickness of less than 0.05 mm, for study with petrographic microscopes. When mounted on a slide and protected with a cover, these samples, examined by polarized light, exhibit distinctive colors.

Pyramid error in optics refers to an aberration in the shape of an optical surface, particularly in the context of mirrors....

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

The process whereby blanks are attached to a block in a position for grinding or polishing.

An accurate metal prism or plane parallel plate that is cemented to an optical element and remains with it during a series...

The scale for floating hydrometers used to measure the specific gravity of a polishing suspension. The depth of immersion is...

An optical resonator in which feedback is accomplished by two parallel planes. In diode lasers, the planes are obtained by...

A small optical polishing machine intended for polishing the surface of a metal specimen before etching for examination...

A method used to produce precision spherical and aspheric molded glass lenses without grinding or polishing.

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

A flat cylindrical device generally used to polish terminated ends in fiber optic connections.

A very fine powdered ferric oxide used in polishing lenses.

Diamond turning, also known as diamond machining or diamond cutting, is a precision machining process used to produce...

The production of rough glass lens blanks that are pressed while red-hot to the approximate size and shape of the finished...

In fiber optics, a device used to polish a biconic plug to a specified length and surface finish. Also called a polishing...

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

Freeform mirrors refer to reflective optical components that deviate from traditional symmetric or rotationally symmetric...

1. A group of optical fibers that are fused and then treated to produce a vacuum-tight optical fiber cone or plate. 2. An...

A polishing machine designed to permit adjustment of the polisher speed and motion for the control of flat surfaces.

Powder used to produce a smooth optical surface through abrasive polishing. Compounds may produce a surface finish specified...

A molded lens is an optical lens manufactured using a molding process, typically involving the shaping of a material, such...

The curved mark formed when, in the process of generating, a loose or coarse diamond particle from the generating tool...

A tool made by imbedding small particles of diamond in the working edge. In the optical field, the most commonly used...

Pitch for polishing mixed with other materials to give it the right viscosity so that it will follow the fine-ground lens...

Optical glass refers to a type of glass specifically engineered and manufactured for use in optical components and systems,...

The cutting of pitch tooling surfaces by an optical technician to permit polishing compounds to flow across the surface of...

A casting consisting of an optical material molded into the desired geometry for grinding, polishing or, in the case of...

A hole filled with dirt such as a polishing abrasive and located in an optical surface. See dig; scratch.

Polishing with a plastic pad.

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

A custom optic refers to an optical component that is designed, manufactured, and tailored to meet specific requirements or...

The process whereby a rotating wheel carries grains of an abrasive, suspended in a vehicle, across the surface of the...

A term used to describe a convex surface having too short a radius of curvature. To correct this condition, material is cut...

A lens blank is a piece of optical material in a raw, unfinished state, typically in the form of a disk or block, from which...

A method of polishing an aspheric surface by mechanically distorting the optic while polishing the surface to a perfect...

Pitch, wax, resin or other cement suitable for holding optical parts to a spindle during grinding and polishing processes.

In optics, degreasers or ultrasonic arrangements used for removing pitch, cement or polishing material from lenses during...

Machinery used to grind and finish a component, such as a lens or prism, to a desired precision. Usually such machines carry...

A polishing scratch having no visible conchoidal breaking of the edges.

A polishing machine with a lens mounted on a wooden stick, allowing a very wide sweep. It is used to polish hemispherical or...

The name of the mixture of liquid and grinding or polishing compounds used in processing optical materials.

A loose term for a single polishing machine. In a lens factory it is the minimum unit of production.

Also called shining. Grinding and polishing one surface of a blank to permit a more thorough examination for quality.

The process whereby the shape of an optical surface is altered by polishing.

1. An undulation or vibration; a form of movement by which all radiant energy of the electromagnetic spectrum is estimated...

A polishing machine in which the rouge slurry is contained in a bowl and is constantly diverted mechanically so that it...

A metal tool used to hold a number of lens blanks during grinding and polishing.

Custom lapping and polishing services involve specialized processes used to improve the surface finish and dimensional...

Any of the numerous powders used for grinding and polishing glass, crystal or metal, the chief material being emery and...

The optical process, following grinding, that puts a highly finished, smooth and apparently amorphous surface on a lens or a...

A mirror blank refers to the initial piece of material from which a mirror is made. It is typically a flat or slightly...

Optical manufacturing tools and machinery encompass a wide range of equipment, instruments, and systems used in the...

Diamond turning refers to a precision machining process used to produce complex optical components, particularly lenses and...

A technique for polishing silicon in which an alkaline suspension containing silicon dioxide particles creates a soft layer...

A polishing material that has a quicker polishing action than rouge (ferric oxide) and that is cleaner to handle.

A supporting member used to hold optical parts during grinding and polishing. It also describes the assemblage of optical...

The length of the oscillation of a grinding or polishing lap.