brightup

English

Noun

brightup (uncountable)

1. (electronics) A pulse of the beam (cathode ray) in a cathode ray tube that causes a blank screen to fluoresce.
   • 1969, V. D. Andreev, Theory of Internal Navigation Aided Systems (page 230)

     The effect of parasitic brightup of the picture tube glass on the accuracy of position measurements is considered.

   • 1971, Leslie Ernest Weaver, Television Measurement Techniques, page 358:

     Any variation of the apparent start of the trace indicates a brightup (unblanking) pulse with a poor leading edge, […]

   • 1973, Ian Robertson Sinclair, Understanding Electronic Circuits, page 184:

     An additional output from the timebase section is the blanking pulse which biases back the grid of the c.r.t. during flyback; this may be supplemented by a “brightup' pulse which switches the beam on during the forward stroke

   • 2013, C. F. Barnett, M. F. A. Harrison, Plasmas: Applied Atomic Collision Physics, Vol. 2 - Volume 2, page 201:

     […] but instead are used to modulate the oscilloscope brightness, one brightup of the beam corresponding to each fringe maximum.

Alternative forms

• bright-up