Illumination means for 3-D printing apparatus
US4493551A · kind A · utility
3Cited by
11References
5Claims
0Family size
Inventors
Key dates
| Filing date | Mar 24, 1983 |
| Grant date | Jan 15, 1985 |
| Priority date | — |
| Expiry date | Mar 24, 2003 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B35/14
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Illumination apparatus for a three-dimensional enlarging printer in which a moving lamphouse assembly is tilted at angles that vary proportional to the distance of the lamphouse from the center of scan. The tilt angle of the lamphouse is controlled by a motor or the like to direct the maximum illumination available towards the negative and lens associated with the printer and onto the print film to produce a high quality print rapidly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.