MICROWAVE DISCHARGING LIGHT SOURCE UNIT
PURPOSE:To make a unit inexpensive as well as to aim at improvement in printing quality of a film, by sealing gallium in the electrodeless discharge lamp set up in a microwave cavity. CONSTITUTION:Gallium is sealed in the electrodeless discharge lamp set up in a microwave cavity. And, this lamp is i...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | PURPOSE:To make a unit inexpensive as well as to aim at improvement in printing quality of a film, by sealing gallium in the electrodeless discharge lamp set up in a microwave cavity. CONSTITUTION:Gallium is sealed in the electrodeless discharge lamp set up in a microwave cavity. And, this lamp is installed in a microwave discharging light source unit. With this constitution, in case of a darkroom contact reversal printer exposing a high sensitive ultraviolet sensitive film to light, such a filter for cutting an ultraviolet ray of less than 380nm becomes unnecessary. Therefore, a unit is made inexpensive, while the printing quality of the film is improvable. |
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