Reflex Reflector Measurement Systems
Reflex Reflector Measurement Systems are designed to measure the Coefficient of Luminous Intensity (CIL) of reflex reflectors.
The measurement setup involves using a projector to illuminate the test item, and then measuring the luminous intensity of the light reflected from the test item. The ratio of the luminous intensity emitted by the reflector (in candelas) to the illuminance on the reflector (in lux) is the coefficient of luminous intensity or CIL (cd/lx).
Because the luminous intensity measurement is performed at small observation angles, the projector is usually a large distance removed from the test item (typically 15 or 30.48 metres) and the photocell is mounted directly above the projector. Because the samples are usually required to be tilted and rotated, these systems normally operate in conjunction with one of our Automotive and Signalling Goniophotometers.
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| ASG-1.2 Goniometer |
We also offer a specialised goniometer for retroreflective applications, called the ASG-1.2. This is a CIE type A/alpha goniometer with horizontal axis (vertical entrance angles) and vertical axis (horizontal entrance angles). Plus there is a third axis called the “epsilon” or “spin” axis which rotates the sample around its own axis so that the sample can go from upright to sideways to upside down etc.
There is also a hole through the centre so that the sample mounting plate can be taken off and the projector beam can go through so that other equipment like rainfall test equipment can be positioned behind the goniometer.
