Density to Percent Transmission Conversion Table

Fusion energy technology developer Tokamak Energy is working on laser measurement technology crucial to controlling the extreme conditions inside future fusion power plants. The company is testing a...

Physical Constants & Conversion Factors Length [I] 1 meter (m) = 39.3700 in. = 3.280833 ft = 1.093611 yd 1 kilometer (km) = 0.6213711 mi = 0.53996 nautical mi 1 micron (µm) =...

Material Coefficient of Expansion(×10-6 per °C) Density (lbs/cubic in.) Aluminum 23.8 0.10 Brass (cast) 18.8 0.30 Carbon (diamond) 1.2 0.25 Carbon (graphite) 7.9 - Copper 16.2 0.32...

Table of the Greek alphabet and what the letters are commonly used to designate. Name Capital Small Commonly Used to Designate Alpha A α Angles, coefficients, attenuation constant,...

Photonics Rules of Thumb Scientists and engineers tend to want to answer simple relational questions with a blackboard covered with equations, even when questioners just want a rough estimate to...

Advanced optical thin-film coating technology is instrumental for the manufacturing of filters, mirrors, or beamsplitters with superior optical characteristics. Monitored control of the coating...

The native length scales of most optical and optoelectronic processes within low-dimensional quantum materials and next-generation devices are well below the diffraction limit of light. As a result,...

Medical diagnosis heavily depends on innovative methods for biomedical imaging. New system concepts that combine miniaturized optical MEMS components, such as scanning mirrors and spatial light...

Myopia is booming worldwide. The World Health Organization estimates that half of the world’s population will be myopic by 2050. But a new treatment has been conceived that permanently and...

An inorganic compound, yellow to orange in color, that fluoresces strongly enough when bombarded by a high-current-density electron beam to be used as a high-intensity light source.

An optical filter is a device that selectively transmits or blocks specific wavelengths, or colors, of light. Optical filters are used to control the spectral content of light in various...

The global ecosystem dynamics investigation (GEDI) lidar is a state-of-the-art spaceborne instrument designed to study Earth's forests and ecosystems in three dimensions. Developed by NASA, GEDI is...

The number of channels per unit bandwidth handled by a single optical fiber.

A microdensitometer is an instrument for the precise measurement of density (transmission) over a small area on a piece of exposed film.

A neutral density filter is a light filter that decreases the intensity of the light without altering the relative spectral distribution of the energy. Also known as a gray filter.

A densitometer is a device used to measure the optical density of a material.

A History of Quality Since 1974 Glass Fab Inc. has met customers' stringent specifications by providing fabricated parts made of optical glass, filter glass, fused quartz and fused silica, low...

Reynard Corporation has been a premier supplier of custom optics and thin-film coatings to a global customer base since 1984. Reynard focuses on manufacturing the highest quality products with...

With over 40 years of experience, Andover Corporation is a recognized world leader in the manufacture of high-quality optical coatings and optical filters. We have an extensive line of...