Photometric Units

Researchers at the University of Wisconsin-Madison, Washington University in St. Louis, and OmniVision described approaches to image sensor production that used integrated nanostructured components...

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...

A team of researchers led by Aydogan Ozcan from the Electrical and Computer Engineering Department and California Nanosystems Institute at UCLA has developed a diffractive optical network to replace...

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...

Photodetectors are commonly used for measuring light power. They are also used as position-sensitive detectors (PSDs) in a wide variety of applications including human eye movement monitoring,...

A novel new form of ultraviolet microscopy has been developed, called metabolic light absorption, scattering, and emission (Meta-LASE) microscopy, which enables the simultaneous imaging of optical...

Metasurfaces are new optical elements that allow complete control over all aspects of light such as phase, wavelength, intensity, and polarization with a single, planar semiconductor layer. Comprised...

There are 422 million people worldwide living with diabetes1, and current methods for monitoring blood glucose levels are painful, invasive, and can potentially require surgical procedures....

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...

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.)

Law relating the illuminance (or irradiance) of a surface to the cosine of the angle, q, between the normal to the surface and the direction of the incident wave.

The general term for the application of light to a subject. It should not be used in place of the specific quantity illuminance.

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...

XENON Corporation is a world leader in Pulsed UV Light technology. XENON designs and manufacturers high-performance Pulsed Light systems for use in a wide range of research and production...