The Differential Carbon-Feed System for Projection Arc Lamps
There is a growing recognition of the fact that to obtain constant screen color and light intensity, the position of the positive carbon must be maintained automatically in relation to the projection lamphouse optical system. In the development and application of such a control feature, the requirements of carbon-feed systems have been reviewed. The differential carbon-feed system seems to meet these requirements, and considerations pertaining to the application of the differential feed system with automatic positioning to an angular trim burner will be related.
- Print ISSN
- 0898-042X
- Published
- 1951-01
- Content type
- Original Research
- DOI
- 10.5594/J05098
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