Negative mask unit
AssigneeNoritsu Koki Co., Ltd.
InventorHiroshi Oku
Life of this patent
Estimating the term…
Abstract
A negative mask unit which can perform exposure from either of reference film or new-type film simply by changing the direction of insertion of the negative film. The negative mask unit has a negative film feed passage provided between a base plate and a top plate. The film feed passage is composed of first to third feed passages. A negative mask is exchangeably set between the first and third feed passages. Two sets of mask-related members necessary to process reference film (135 film) and new-type film, including a film inlet, feed means, and sensors, are provided on one and the other sides of the negative mask, respectively. One of the sets is selected and film is inserted from the side of the selected set for exposure.
Claims14
A negative mask unit, comprising:
- a body having first and second sides opposite each other;
- a film feed passage located in said body, said film feed passage comprising:
- a first passage for a first film type,
- a second passage for a second film type, and
- a third passage for the first film type, said third passage being connected to said second passage, and wherein said first, second and third passages are on substantially a same plane;
- changeover means being located at a connecting point between said second and third passages, said changeover means operable to guide the first film type;
- a discharge passage for the first film type being provided in said body so as to extend in a direction different from a direction in which said second passage extends;
- a removeable negative mask having first and second sides being provided in said film feed passage, wherein said first passage is located on said first side of said removeable negative mask and said second and third passages are located on said second side of said removeable negative mask;
- a winder provided in said first passage, said winder being operable to wind the second film type;
- a film guide provided in said first passage, said film guide being operable to guide the second film type to said winder;
- and
- two sets of mask-related members, a first set for the first film type and a second set for the second film type, each set comprising:
- a film inlet, and
- feed rollers to feed film inserted through said film inlet,
- said first set of mask-related members for the first film type being provided on said first side of said body and said second set of mask-related members for the second film type being provided on said second side of said body, whereby according to a type of negative film inserted into the negative mask unit, one of said two sets of mask-related members is selected for exposure processing.
A negative mask unit, comprising:
- a body;
- a film feed passage located in said body;
- a removeable negative mask provided in said film feed passage;
- and
- a mounting space provided on one side of said removeable negative mask for mounting one of a plurality of mask-related members, wherein each of said plurality of mask-related members comprises:
- a film inlet, and
- feed rollers to feed film inserted through said film inlet,
- wherein one of said plurality of mask-related members for a first film type or a second film type is selected and detachably set in said mounting space, and wherein negative film corresponding to the selected mask-related member can be inserted for exposure processing.
Dependencies are inferred from the claim text.