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Thread: advice needed on making meter measurements with a fiber optic probe

  1. #1
    Robert A. Zeichner's Avatar
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    Feb 1999
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    Southfield, Michigan
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    advice needed on making meter measurements with a fiber optic probe

    I was recently given a Gossen fiber optic probe that fits the LunaPro and similar style Gossen meters. I'm trying to use it to measure the absolute light output of various flat panel displays and am a bit confused on where I set meter sensitivity to arrive a meaningful readings. Has anyone done this using this probe? Does anyone know of a standard I could use to make a reference measurement? My goal is to be able to walk up to a flat panel display, make a measurement of the lightest and darkest areas of an image and document what the screen output is in foot candles or lux (which the Gossen meters will allow me to convert to using the chart on the back of th meter). Any help would be appreciated.

  2. #2
    ic-racer's Avatar
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    Feb 2007
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    Re: advice needed on making meter measurements with a fiber optic probe

    Not sure about the Luna Pro, but when the fiber probe is fitted to the Lunasix 3 the table in the manual states that when the needle points to the "1" it is reading 0.045 lux, etc.

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