VI.10. Transmission & Reflection

Measurement with Light' refers to the use of optical radiation as a tool for performing a measurement task. Reflectance and transmittance meters employ both light sources and a detection system. A spectrophotometer is a good example of this type of instrument.

Light describes optical radiation visible to the human eye over the wavelength range from 380 to 780 nm. The eye's sensitivity to light varies over this spectral range peaking at 555 nm. This same CIE defined V(ë) photometric action function applies to any application where light must be evaluated for visual purposes including reflection and transmission.

DIN 5036-part 3 and CIE 130-1998 recommend an integrating sphere with a minimum diameter of 50 cm for the measurement of photometric material properties such as light transmittance/reflectance, diffuse transmittance/-reflectance and regular transmittance/reflectance.

Practical Solutions to Real Light Measurement Problems

Here's The Problem:
You need to make fast accurate lux, color and spectral distribution measurements on the go. A remote cabled detector with small footprint is required since space is limited.

Here Are The Requirements:

  • Handheld lux-color-spectral meter
  • Display unit for quick easy reading
  • Detector on cable for remote placement in limited space applications
  • Fast and accurate measurements of intensity, color and spectra

Here's The Solution:
Gigahertz-Optik's CSS-45 Remote Spectroradiometer Detector + CSS-D Display Unit for fast accurate light & color measurements on any type of light source.

Interested in discussing your light detector application?
Give us a call!