An Experimental Investigation of Projection Screen Brightness: I. Choice of the Average Observer
An account is given of an experimental device by means of which an observer is enabled to control and select the brightness at which he wishes pictures to be projected. Data are given for the selections of thirteen individuals on five typical motion picture prints. It is concluded that (1) the average selected brightness is about 30 foot-lamberts; (2) individual observers differ by a factor of 3; (3) a border brightness of 0.05 foot-lambert is preferable to a dark border.
- Print ISSN
- 0097-5834
- Published
- 1936-05
- Content type
- Original Research
- DOI
- 10.5594/J08676
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