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Ultraviolet systems and methods for irradiating substrates

A substrate, irradiation technology, applied in the field of ultraviolet systems, which can solve the problems of increased cost and expensive downtime

Active Publication Date: 2018-07-13
NORDSON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The limited lifetime of magnetrons is a concern because downtime from replacing a failed magnetron can be costly
As a result, strict maintenance schedules are often implemented to replace the magnetrons before they fail, and this further increases costs

Method used

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  • Ultraviolet systems and methods for irradiating substrates
  • Ultraviolet systems and methods for irradiating substrates
  • Ultraviolet systems and methods for irradiating substrates

Examples

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Embodiment Construction

[0021] figure 1 A schematic diagram of an exemplary UV system 10 for irradiating a substrate is provided. The UV system 10 includes one or more solid-state RF sources 12 capable of generating RF energy. As an example, a suitable solid state RF source 12 may be Panasonic part number SSMM-200-A01. In some embodiments, solid state RF source 12 includes multiple solid state RF generating devices connected together using a combiner. In some embodiments, solid state RF source 12 is placed in a Faraday cage 14 .

[0022] The UV system 10 also includes a lamp head 16 having an interior. The solid state RF source 12 located outside the interior of the lamp head 16 is coupled by one or more cables 20 to one or more antennas 18 located within the interior of the lamp head 16 . Preferably, a plurality of antennas are located within the interior of the lamp head 16 . Cable 20 may comprise any type of propagation medium suitable for delivering RF energy generated by solid-state RF sour...

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Abstract

A UV system (10) for irradiating a substrate (26) includes a lamphead (16) having an enclosure with an interior. A UV bulb (24) is positioned within the interior and is capable of emitting UV energy when excited by RF energy. The UV system (10) also includes a solid state RF source (12) capable of generating the RF energy. RF energy is delivered to the UV bulb (24), which causes the UV bulb (24) to ignite and emit UV energy from the interior of the lamp head (16).

Description

technical field [0001] The present invention relates generally to ultraviolet ("UV") systems for irradiating substrates and, more particularly, to the construction and interaction of radio frequency ("RF") energy sources and UV bulbs used in these systems. Background technique [0002] Conventional UV systems include one or more magnetrons and UV bulbs. When power is applied, the magnetron generates RF energy, which is transmitted through the waveguide to the UV bulb, thereby igniting the gas within the UV bulb and causing the gas to enter a plasma state. As a result of this excitation, the UV bulb begins to emit UV energy, which is then used for various applications. For example, UV energy can irradiate a substrate for the purpose of curing materials on the substrate or for other reasons such as surface treatment. Materials can be cured on a substrate by directing emitted UV energy onto a material such as, for example, an ink or an adhesive. As another example, UV energy...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G21K1/00G21K5/04H01J65/04H05B41/24H05B41/28
CPCG21K1/00G21K5/04H01J65/044H05B41/24H05B41/2806Y02B20/00
Inventor 詹姆斯·M·博苏克格雷戈里·W·哈内尔詹姆斯·M·库利爱德华·C·麦吉詹姆斯·C·史密斯哈利·史密斯-皮特
Owner NORDSON CORP
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