Abstract:
I. Product and its U3CS
The scheme envisages manufacture of Photo
Enlargers, which are used in enlarging photos.
These equipments are used by photo studio
and other commercial art establishments. The
equipment consists of all metal ventilated lamp
house mounted on a splid moulded Aluminium
chasis. The movement of the lamp and it
projection is controlled by free bellows movements
with friction type rollers, which arc
mounted below the Aluminium Hand." This
equipment can obtain 12" X 15" projection on
base board from the negative of 2" X 3-1".
For bigger size enlargements lamp house can be
tilted and the projection can be obtained on the
wall side. At the bottom of the bellows a 105
mm congo lens F4/5 along with double mounted
condensers are provided.
