Three-chip LED illumination system for laparoscopy and minimal access surgery applications

Bin Ye; Liqiang Wang; Huilong Duan

doi:10.1117/12.869479

15 November 2010 Three-chip LED illumination system for laparoscopy and minimal access surgery applications

Bin Ye, Liqiang Wang, Huilong Duan

Proceedings Volume 7852, LED and Display Technologies; 78520H (2010) https://doi.org/10.1117/12.869479
Event: Photonics Asia 2010, 2010, Beijing, China

Abstract

Light-emitting diodes (LEDs) bring great flexibility in color choice and high luminous efficacy design for biomedical illumination. Based on the state-of-the-art LED chips, a three-chip LED illumination system was developed specially for laparoscopy and minimal access surgery. White light is produced by mixing three specific wavelengths of amber red, true green and blue, and then coupled into a fiber-optic light guide with 2mm diameter. The whole device has a compact size of 145mm × 92mm × 84 mm which is more suitable than a conventional xenon lamp source for portable endoscopes. The illuminance and color characteristic of the three-chip model were analyzed, compared to those of traditional light source. A maximum illuminance of 1960 lux was obtained at the distance of 100 mm, with the average current of 450 mA of the LEDs. Additionally, a simulation environment had been set up to find out the performance of the endo-illuminator in the specific circumstance, which was closer distance and crawl space. Experiments showed that images taken under the three-chip LED illumination had better contrast and saturation. With the temperature of 31.5 degrees Celsius at the end of the fiber bundle, the endo-illuminator is also a cold light source.

Citation Download Citation

Bin Ye, Liqiang Wang, and Huilong Duan "Three-chip LED illumination system for laparoscopy and minimal access surgery applications", Proc. SPIE 7852, LED and Display Technologies, 78520H (15 November 2010); https://doi.org/10.1117/12.869479

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