The stars form a natural series of light sources of every intensity. With the aid of photometers, these intensities have been measured with great accuracy and graded in a scale of magnitudes. This...doi:10.1007/978-1-4612-2722-9_5Marcel Minnaert...
YW-552 Light Brightness Measurement Digital Lux Meter Specifications DESCRIPTION:YW-552 is an instrument specialized for measuring illumination and can be used in factories, lighting industry, planting, schools, offices, laboratories and street lamp construction. YW-552 is equipped w...
Its high dynamic range, excellent linearity, and digital output allow for accurate light intensity measurements, enabling dynamic adjustments to display brightness for optimal viewing conditions across diverse lighting environments, whether for high-definition televisions or smartphone screens...
《A History of Light and Colour Measurement》是2001年出版的图书，作者是Johnston, S.F.。内容简介 A work by the 2003 Paul Bunge Prize of the Hans R. Jenemann Foundation for the History of Scientific Instruments. Judging the brightness and color of light has long been contentious. Alternately ...
A new instrument has been developed for transient measurement of light-emitting diodes (LEDs), including photometric parameters, colorimetric parameters, and electrical parameters in a matter of milliseconds, by combining spectrometer with a human photopic vision detector and data acquisition card (DAQ)....
The values of sky brightness level were collected on 27 December 2019 as well as 10 January 2020 at sunrise and sunset. The aim of this research is to study on sky illumination contrast by taking moonlight (moonless/full moon) as a reference source. Additionally is to localize the ...
Photometry is the measurement of visible light with a sensor having a spectral response equal to a typical human eye. Photometry is used to describe lighting conditions where the eye is the primary sensor, such as illumination of work areas, interior lighting, and television brightness. Photometric...
Lux, unit of illumination (see luminous intensity) in the International System of Units (SI). One lux (Latin for “light”) is the amount of illumination provided when one lumen is evenly distributed over an area of one square metre. This is also equival
The aspects of color associated with hue and saturation without reference to brightness. Chromaticity (CIE) Coordinates The proportion of the standard tristimulus values used in color matching. Colors are compared by their CIE X, Y, and Z coordinates. ...