Photometric Units

The University of Rochester has received nearly $18 million from the National Science Foundation (NSF) to design and prototype key technologies for EP-OPAL, a new facility dedicated to the study of...

That portion of the spectrum that the eye can see — and its rainbow of colors — is rather small, covering approximately 360 to 830 nm. What colors we perceive depends on wavelength, while...

Intensity and uniformity can be described using different physical attributes, which makes interpreting requirements somewhat confusing. This article intends to provide an explanation and serve as a...

NSOM is suitable for studies on the mesoscopic scale (several tens to hundreds of molecular dimensions). It has become an important tool in research and applications of semiconductors, organic layers...

Machine vision camera systems are essential for enabling automation and maintaining quality control across various industries to ensure that processes are efficient, consistent, and meet accuracy and...

Learn about optical ray tracing using the COMSOL Multiphysics® software and watch a live demo of the software. The demo shows how to create a fully parameterized geometry of a typical lens...

Single photon avalanche photodiode (SPAD) arrays are an emerging imaging technology offering several advantages over traditional imaging with CCDs and CMOS. Most importantly, a pixel in a SPAD array...

This eSeminar, presented by CST, will show you how to use CST STUDIO SUITE® to simulate the design of Photonic Integrated Circuits (PICs). It will demonstrate the complete workflow to analyze...

Photocells of various kinds used to measure photometric quantities; i.e., intensity, luminance and illuminance. Meter readings are used to express illuminance and, by calibration, to measure...

An object that has a sinusoidal variation of luminance. Its image will have a sinusoidal variation of illuminance and the only effect of degeneration by the lens system will be to reduce the...

Luminous flux incident per unit area of a surface; luminous incidence. (The use of the term "illumination" for this quantity conflicts with its more general meaning.)

A high-sensitivity camera is a type of camera designed to perform well in low light conditions, capturing clear and detailed images with minimal noise. These cameras typically feature advanced sensor...

The physical optics software VirtualLab Fusion propagates electromagnetic fields through the optical system to the detectors. The fields provide all information about light. Thus, detectors can...

A photometer is a device used to compare the luminous intensities of two sources by comparing the illuminance they produce.

An illuminometer is a photometric instrument used to measure the illumination falling on a surface. It may be photoelectric or visual.

Your partner for all spectral, color and light measurements Admesy is a well-known brand for a wide range of user-friendly and robust light and color measurement devices, suited for both...

With more than 50 years in the photonics/metrology industry and over 200 years combined expertise of our staff, Optronic Laboratories has been improving the way the world measures light by offering...