Methods for assessing visual tasks to establish desirable lighting and viewing conditions for performance of tasks; apparatus; and, applications
AssigneeOrfield Laboratories, Inc.
InventorsFrederick G. Hewitt, Steven J. Orfield
Life of this patent
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Abstract
A method of establishing a lighting system and viewing environment for conduct of visual task is provided. The method generally includes steps of providing a visual performance lab, conducting a visual performance study, and constructing an industrial viewing station based upon the results of the visual performance study. The invention also concerns provision of a preferred visual performance lab and development of preferred industrial viewing stations.
Claims20
An industrial viewing station for inspection of defects in a vehicle surface to be examined;
- said industrial viewing station comprising:
- a) a visual surround defining an interior sized to receive at least a portion of the vehicle;
- i) said visual surround covering the interior in order to selectively control entry of outside light into the interior and to selectively control internal luminance;
- b) a lighting arrangement having:
- a first selected lighting condition and a second selected lighting condition;
- i) said first selected lighting condition comprising at least one
- (A) point source lighting;
- (B) linear source lighting;
- and
- (C) area source lighting selectively orientable to provide generally uniform illuminance of an area in which the vehicle is positioned for examination;
- ii) said second selected lighting condition comprising at least one of:
- (A) point source lighting;
- (B) linear source lighting;
- and
- (C) area source lighting selectively orientable to provide generally uniform illuminance of an area in which the vehicle is positioned for examination;
- and
- c) a control system for selectively activating said first selected lighting condition and said second selected lighting condition.
An inspection lighting system for inspection of defects in a vehicle surface to be examined;
- said inspection lighting system comprising:
- a) a visual background against which the surface to be examined is selectively examined;
- b) a lighting arrangement having:
- a first selected lighting condition;
- and, a second selected lighting condition;
- c) said first and second selected lighting conditions comprising:
- i) point source lighting;
- ii) linear source lighting;
- iii) area source lighting selectively orientable to provide generally uniform luminance of an area in which the vehicle is positioned for examination;
- and
- d) a control system for selectively controlling said first selected lighting condition and said second selected lighting condition.
Dependencies are inferred from the claim text.