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Inventor: Gilligan; Patrick J.
Address: Minneapolis, MN
No. of patents: 3
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| D249529 |
Photographic printer |
September 19, 1978 |
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| 4099864 |
Light source for photographic printer |
July 11, 1978 |
| An improved light source for a photographic printer uses a plurality of print lamps. A heatsink and blower dissipate heat generated by the print lamps. The light diffuser which diffuses light from the lamp includes a white porcelain diffuse reflector. |
| 4017179 |
Automatic density control |
April 12, 1977 |
| An automatic density control device for photographic printers for sensing and correcting for a "subject failure" in a photographic negative, where the subject area of the negative is out of the optimum density ratio to the background area, which device includes a frusto-pyramidal radiati |
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