Photographic processing apparatus

G - Physics – 03 – B

Patent

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Details

G03B 27/53 (2006.01) G03B 27/30 (2006.01) G03B 27/32 (2006.01) G03B 27/62 (2006.01) G03D 17/00 (2006.01)

Patent

CA 2130848

A photographic processing apparatus capable of printing films having different widths. An exposure unit for printing film images on photographic paper has a negative mask to guide the movement of the films. The negative mask is provided with a plurality of film guide paths which correspond to widths of the films. A transfer unit is provided to move the negative mask in a direction perpendicular to the feed direction of the film. Along the film feed path toward the negative mask are provided sensors to detect the film size. Printing is carried out in such a manner that after the film size has been detected by the sensors, the transfer unit is controlled by the signal from the sensors to bring one of the film guide paths which corresponds to the film size into alignment with the exposure axis.

Appareil de développement photographique capable de tirer des épreuves à partir de pellicules de différentes largeurs. Une unité d'exposition, servant à tirer des images sur papier photographique à partir de pellicules, est dotée d'un masque négatif destiné à guider le déplacement des pellicules. Le masque négatif comporte une série de voies de guidage de pellicules correspondant aux différentes largeurs des pellicules. Une unité de transfert permet de déplacer le masque négatif dans une direction perpendiculaire à la direction de déplacement de la pellicule. Des détecteurs, situés le long de la voie de déplacement de la pellicule près du masque négatif, déterminent la dimension de la pellicule. Pour procéder au tirage, les détecteurs déterminent la dimension de la pellicule et envoient ensuite un signal à l'unité de transfert pour lui commander d'aligner une des voies de guidage correspondant à la dimension de la pellicule par rapport à l'angle d'exposition.

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