A highly efficiency LED portable desk lamp based on V-groove cells LGP

Chi Feng Chen, Shin Hong Kuo

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review


The research studies a new LED portable desk lamp with V-groove cells light guide plate (LGP). Such LGP enables light of edge LED to be transmitted from the LGP with high efficiency and uniformity to enter a lighting area. Here, the so called V-groove cell is a unit composed of multiple V-grooves we provided, which may regulate light effectively with appropriate design to implement the design goal of lighting. We analyze the impact of V-grooves parameters on LGP, and further, use portable DL as an example to search for suitable V-groove units, and acquire successfully a set of LGP with high efficiency, high illuminance uniformity, and low direct glare. Compared to the commercially available DL, the efficiency is increased by 1.4 times, and the illuminance distribution of target area is similar. Obviously, such microstructure unit composed of multiple V-groove microstructure (VGM) cells can implement design goal of LED portable DL with high efficiency..

Original languageEnglish
Title of host publicationOptical Design and Testing VI
EditorsChunlei Du, Jose Sasian, Yongtian Wang, Kimio Tatsuno
ISBN (Electronic)9781628413458
StatePublished - 2014
EventOptical Design and Testing VI - Beijing, China
Duration: 9 Oct 201410 Oct 2014

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X


ConferenceOptical Design and Testing VI


  • LED
  • V-groove structure
  • light guide plate
  • portable desk lamp


Dive into the research topics of 'A highly efficiency LED portable desk lamp based on V-groove cells LGP'. Together they form a unique fingerprint.

Cite this