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UV Lamp Head

UV Lamp Head. General. UV Lamp. Water Cooled Extrusion. Housing. Shutter. IR Absorbing Dichroic Reflector. General (Cont.). General (Cont.). Components. The UV lamp head includes: Ultra violet (UV) lamp Shutters Reflectors Quartz plate filter Air extraction windows

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UV Lamp Head

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  1. UV Lamp Head

  2. General Confidential

  3. UV Lamp Water Cooled Extrusion Housing Shutter IR Absorbing Dichroic Reflector General (Cont.) Confidential

  4. General (Cont.) Confidential

  5. Components • The UV lamp head includes: • Ultra violet (UV) lamp • Shutters • Reflectors • Quartz plate filter • Air extraction windows • Water tubes and ducts Confidential

  6. UV Lamp UV Lamp Confidential

  7. UV Lamp (Cont.) • The lamp is the heart of the UV system. • Lamp power is up to 200 W/cm (36kW). • The lamp, by nature, cannot be switched On or Off instantly. • When the machine is in Idle mode: • The lamp switches to the reduced power level of 30%. • The shutters are closed. • Lamp’s operating temperature is 650°C - 850°C. Confidential

  8. Shutters • Shutters are closed when the machine is not printing. • Shutters are automatically activated when the machine startsto print. • Shutters are operated pneumatically. Confidential

  9. Shutters closed Shutters open Shutters (Cont.) Confidential

  10. Reflectors The Reflectors Upper Shutter Confidential

  11. Reflectors (Cont.) • The reflectors are manufactured from pure aluminum, anodized for protection and treated to give maximum UV reflectivity. • The reflectors absorb heat and reflect UV. • The reflectors minimize the IR power and maximize the UV power. Confidential

  12. Absorb heat and reflect UV Min IR Upper Shutter Max UV Reflectors (Cont.) Confidential

  13. IR Power UV Power Reflectors (Cont.) Confidential

  14. Quartz Plate Filter Quartz Plate Filter • The purpose of the quartz plate filter is to: • Prevent the media from touching the reflectors and the UV lamp. • Prevent ink fumes from entering the lamp head. Confidential

  15. Air Extraction Windows Air Extraction Windows • The purpose of the air extraction windows is to: • Allow the lamp head to cool down by extracting the heat fromits vicinity. • Remove the small quantities of ozone that are generated around the lamp. Confidential

  16. Water Tubes and Ducts • The purpose of the water is to cool down the UV lamp head. • The ducts are located around the UV lamp head. Confidential

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