期刊文章

09.07.19: Latest light measurement standards for OEM suppliers

The new white paper from Instrument Systems provides an overview of the current OEM regulatory requirements for defined pass-fail criteria for LCDs, including color, luminance homogeneity, gamma and pixel defects. [more]

21.06.19: Technical Article: In-Line VCSEL Testing

Article by Dr. Tobias Roesener [more]

24.05.19: Technical Article: On-the-Fly Light Measurement of Modulated LEDs with DSP 200

Article by Martin Senft [more]

03.06.19: Technical Article: What you need to know about LED lamps

Tip: Article by Ulrike Kuhlman at heise.de (in german language only) [more]

01.10.18: Technical Article: Quality assessment of display systems: display metrology, do we need it?

Article by Dr. Michael E. Becker [more]

28.09.18: Technical Article: In-process display analysis: fast testing using the spectroradiometer

The brightness and color reproduction of a flat panel display is factory calibrated. For economic reasons this should take place in an automated process at the production stage. Spectroradiometers enable precise photometric and colorimetric measurements, and are fast enough for use in production.

The subjective brightness sensitivity of the human eye is not linear, but roughly proportional to the logarithm of the intensity of the physical stimulus. The brightness reproduction of a display must be adjusted accordingly. This is possible with the aid of gamma correction – a correction function frequently used in image processing. With gamma correction a linearly increasing variable is transformed into a non-linear course, so that the brightness of the display is perceived by the observer as uniform. Expressed mathematically... Article by Dr. Ðenan Konjhodžić published in Elektronik 17/18 [more]

24.08.18: Technical Article: Optical variety - the right measuring instrument for your individual task

Article by Dr. Günther Leschhorn [more]
Displaying results 1 to 7 out of 22
<< First < Previous 1-7 8-14 15-21 22-22 Next > Last >>