An Examination on Retrofit LED Lighting using Cobra Structure

Authors

  • Kyung-Sun Yoo
  • Eun-Hye Kim
  • Dong-Hoon Hyun
  • Byoung-Jo Jung

Abstract

Background/Objectives: A new method was proposed to facilitate assembly of the lamp type light source without removing the existing registration device for replacing it with LED lighting.

Methods/Statistical analysis: An optical system that meets the type II medium was designed at a height of 6[m] that conforms to the Korea Industrial Standards(KS) illuminance criteria of the security lamp and to the Illuminating Engineering Society of North America(IESNA).The size of the LED lightings to be developed was designed so that they could fit into cobra lighting fixture. An E-base kit is developed so that the LED lighting could be assembled with the same E-base type as the lamp.

Findings: LED lightings have been developed to address the problem of replacing existing lighting. First, an optical system that meets the type II medium was designed at a height of 6[m] that conforms to the KS illuminance criteria of the security lamp and to the IESNA. Second, the lighting bulb used in existing lamps is mostly cobra lighting bulb. The size of the LED lightings to be developed was designed so that they could fit into cobra lighting fixture. In addition, the heat sink shape that solved the thermal problem when the LED lightings entered the lighting bulb was presented and the weight of the fully assembled LED lightings was aimed at less than 1[kg], and the weight of the heat sink was also satisfied when the design was designed to satisfy the weight of 0.668[kg]. Finally, the removal problem of the apparatus was solved by developing an E-base kit so that the LED lighting could be assembled with the same E-base type as the lamp, so that the lighting fixture used for the lamp can be used as it is.

Improvements/Applications: By prototyping optics, heat sink, and kit of designed security lamps, the performance reliability was obtained by comparing the results of the design simulation and measurement, and comparing the design and actual weight to ensure satisfaction with the target LED lighting of 1[kg] or less.

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Published

2019-11-22

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Section

Articles