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polish Dictionary Terms

plastic polishing
Polishing with a plastic pad.
polishing jig
In fiber optics, a device used to polish a biconic plug to a specified length and surface finish. Also called a polishing...
Fabry-Perot cavity
An optical resonator in which feedback is accomplished by two parallel planes. In diode lasers, the planes are obtained by...
scratch
A defect on a polished optical surface whose length is many times its width. Block reek is a chainlike scratch formed in...
Baume scale
The scale for floating hydrometers used to measure the specific gravity of a polishing suspension. The depth of immersion is...
stressed mirror polishing
A method of polishing an aspheric surface by mechanically distorting the optic while polishing the surface to a perfect...
diamond cutting tool
A tool made by imbedding small particles of diamond in the working edge. In the optical field, the most commonly used...
free-abrasive machining
The process whereby a rotating wheel carries grains of an abrasive, suspended in a vehicle, across the surface of the...
optical blank
A casting consisting of an optical material molded into the desired geometry for grinding, polishing or, in the case of...
mirror blank
A mirror blank refers to the initial piece of material from which a mirror is made. It is typically a flat or slightly...
slurry
The name of the mixture of liquid and grinding or polishing compounds used in processing optical materials.
boule
1. A group of optical fibers that are fused and then treated to produce a vacuum-tight optical fiber cone or plate. 2. An...
polishing
The optical process, following grinding, that puts a highly finished, smooth and apparently amorphous surface on a lens or a...
figuring
The process whereby the shape of an optical surface is altered by polishing.
clearing
Also called shining. Grinding and polishing one surface of a blank to permit a more thorough examination for quality.
zones
1. In a polished surface, concentric waves that appear as zones in Newton's rings when a test glass is applied. 2. An...
flat machine
A polishing machine designed to permit adjustment of the polisher speed and motion for the control of flat surfaces.
polisher pressing
The process of forming a polisher by pressing it with an optical surface.
finished lens molding
A method used to produce precision spherical and aspheric molded glass lenses without grinding or polishing.
short finish
A term that describes an incomplete polish.
polishing puck
A flat cylindrical device generally used to polish terminated ends in fiber optic connections.
optical dummy
1. A lens formed to a desired curve and used to form a polisher. 2. A piece of glass included in a block to fill out the...
oil-on plate
A polished plano-parallel plate that is contacted to an unpolished glass surface to permit see-through analysis of the...
magnetorheological finishing
Magnetorheological finishing (MRF) is a precision optics polishing technique used for shaping and finishing optical surfaces...
custom lapping and polishing services
Custom lapping and polishing services involve specialized processes used to improve the surface finish and dimensional...
deep
A concave surface that has too much negative power; i.e., its radius of curvature is too short. This condition can be...
plastic lens
A lens made from transparent plastic material. Lenses over 31/2 in. in diameter are usually machined, ground and polished....
grinding and polishing machinery
Machinery used to grind and finish a component, such as a lens or prism, to a desired precision. Usually such machines carry...
cleaning equipment
In optics, degreasers or ultrasonic arrangements used for removing pitch, cement or polishing material from lenses during...
gray
1. A measure of absorbed dose, equal to the energy imparted by ionizing radiation to a mass of matter corresponding to 1 J...
fog
1. A term used to describe the clouded appearance of an incompletely polished surface that scatters light. 2. The...
body
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...
optical manufacturing tools and machinery
Optical manufacturing tools and machinery encompass a wide range of equipment, instruments, and systems used in the...
green block
A porous ceramic substance that is ground to a given optical form and on which a polished plate of glass is sagged by heat...
transfer blocking
A process used to control thickness and parallelism precisely during the production of plane-parallel plates. Elements are...
Linnik interference microscope
A Michelson-type interference microscope used to produce interference patterns of reflective specimens through the...
sleek
A polishing scratch having no visible conchoidal breaking of the edges.
prism
A prism is a transparent optical element with flat, polished surfaces that refract light. It usually has two parallel bases,...
metal component
An accurate metal prism or plane parallel plate that is cemented to an optical element and remains with it during a series...
blocking
The process whereby blanks are attached to a block in a position for grinding or polishing.
spindle
A loose term for a single polishing machine. In a lens factory it is the minimum unit of production.
sand hole
A crude area on the polished surface, produced during coarse grinding, that subsequent fine grinding does not remove, owing,...
crystal quartz
The naturally occurring crystalline form of silicon dioxide. It is slightly birefringent and exhibits rotary dispersion of...
generating mark
The curved mark formed when, in the process of generating, a loose or coarse diamond particle from the generating tool...
metallographic polishing machine
A small optical polishing machine intended for polishing the surface of a metal specimen before etching for examination...
bitoric lens
A lens, both surfaces of which are ground and polished into a toric or cylindrical form.
petrographic specimen preparation
The grinding and polishing of rock samples, to a thickness of less than 0.05 mm, for study with petrographic microscopes....
haze
An aggravated form of fog in a polished surface caused by the scattering of light. The defects causing haze are larger than...
metallographic microscope
A specially designed microscope for observing the etched surface of a polished metal specimen. The specimen is often laid...
fiber optic field flattener
A plate consisting of fused optical fibers with both surfaces ground and polished, and having the entrance surface curved to...
superreflector
A reflector having a surface that has been superpolished to reduce residual sleeks and scratches and microroughness so that...
molded lens
A molded lens is an optical lens manufactured using a molding process, typically involving the shaping of a material, such...
narrow-angle dark-field illumination
An imaging system designed to highlight small deviations in a planar reflective object such as a mirror. The system can be...
wafer
In the context of electronics and semiconductor manufacturing, a wafer refers to a thin, flat disk or substrate made of a...
scoring
The cutting of pitch tooling surfaces by an optical technician to permit polishing compounds to flow across the surface of...
chemical-mechanical polishing
A technique for polishing silicon in which an alkaline suspension containing silicon dioxide particles creates a soft layer...
fused array of fibers
Optical fibers fused together to form a solid, vacuum-tight assembly in the form of a slab or rod. Discs or rectangular...
ripples
The approximately concentric waves that form on a surface that has been polished without an oscillation of the polishing lap.
open bubble
A bubble at a polished surface that has been opened by grinding or polishing.
optical flat
A piece of glass, pyrex or quartz having one or both surfaces carefully ground and polished plano, generally flat to less...
polished mold
A mold for glass or plastics often made of stainless steel to prevent pitting or oxidation in service. It is polished to the...
lens molding
The production of rough glass lens blanks that are pressed while red-hot to the approximate size and shape of the finished...
burn
A surface imperfection caused by a polisher running dry too long. It occurs with felt or plastic polishers, and may appear...
blocking material
Pitch, wax, resin or other cement suitable for holding optical parts to a spindle during grinding and polishing processes.
polishing and abrasive material
Any of the numerous powders used for grinding and polishing glass, crystal or metal, the chief material being emery and...
saddle
A term used to describe a saddle-shaped -- i.e., convex along one axis, concave along the other -- polished surface,...
swing
The length of the oscillation of a grinding or polishing lap.
silver spots
Spots in a polished glass surface that are opaque and have a silvery, metallic reflection.
wave
1. An undulation or vibration; a form of movement by which all radiant energy of the electromagnetic spectrum is estimated...
concave and convex spherical mirror
Concave and convex spherical mirrors are types of curved mirrors that have surfaces shaped like segments of spheres. These...
lens blank
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...
mirror
A smooth, highly polished surface, for reflecting light, that may be plane or curved if wanting to focus and or magnify the...
grating substrate
The substrate upon which a diffraction grating will be ruled. It must be dimensionally stable, and the surface must be...
dirt hole
A hole filled with dirt such as a polishing abrasive and located in an optical surface. See dig; scratch.
injection molding
A method of producing high-quality plastic optics in large volumes by injecting the heated, liquified plastic at high...
optical glass
Optical glass refers to a type of glass specifically engineered and manufactured for use in optical components and systems,...
block
A supporting member used to hold optical parts during grinding and polishing. It also describes the assemblage of optical...
cerium oxide
A polishing material that has a quicker polishing action than rouge (ferric oxide) and that is cleaner to handle.
pyramid error
Pyramid error in optics refers to an aberration in the shape of an optical surface, particularly in the context of mirrors....
diamond-turned optic
Diamond turning refers to a precision machining process used to produce complex optical components, particularly lenses and...
reflecting prism
A prism having several plane polished surfaces, some to transmit light, some to reflect light, and some to serve both...
rouge
A very fine powdered ferric oxide used in polishing lenses.
custom optic
A custom optic refers to an optical component that is designed, manufactured, and tailored to meet specific requirements or...
spotted tool
A metal tool used to hold a number of lens blanks during grinding and polishing.
abrasive
Powder used to produce a smooth optical surface through abrasive polishing. Compounds may produce a surface finish specified...
stick machine
A polishing machine with a lens mounted on a wooden stick, allowing a very wide sweep. It is used to polish hemispherical or...
biprism
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...
bowl-feed machine
A polishing machine in which the rouge slurry is contained in a bowl and is constantly diverted mechanically so that it...
sharp
A term used to describe a convex surface having too short a radius of curvature. To correct this condition, material is cut...
diamond turning
Diamond turning, also known as diamond machining or diamond cutting, is a precision machining process used to produce...
test cube
A device used to detect elevation, pyramid and resolution errors in prisms and other components by bringing them into...
freeform mirrors
Freeform mirrors refer to reflective optical components that deviate from traditional symmetric or rotationally symmetric...
semifinished blank
A formed piece of glass, one surface of which has been ground and polished to the required curvatures.
Newton's rings
The series of rings or bands formed when light beams reflected from two polished, adjacent surfaces, placed together with a...
bring-in
The final correction of a polished surface or of an angle to the specified precision.
pitch polishing compound
Pitch for polishing mixed with other materials to give it the right viscosity so that it will follow the fine-ground lens...

(96 results found)

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