Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
G03B21/00—Projectors or projection-type viewers; Accessories therefor
G03B21/06—Projectors or projection-type viewers; Accessories therefor affording only episcopic projection
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Investigating Materials By The Use Of Optical Means Adapted For Particular Applications
(AREA)
Verfahren und Vorrichtung zum Messen der Belichtung zur Herstellung von Raster- und Halbtonfilmen nach Halbtonnegativen bzw. Farbauszuegen in der Reproduktions-Fotografie