(Received 1 June 1987; accepted 29 June 1987)
Published Online: March
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An extinction-type luminance measurement method using an inexpensive illuminance meter for low-light-level measurements is described. The method has application in night-time crime and accident scene investigations where poor and inadequate visibility may be a contributing factor. The meter is useful for measuring luminances under field conditions.
Consultant in engineering and applied science, Janesville, WI
Stock #: JFS11968J