Diamond shaped quasi-symmetrical single LED with high and wide beam intensity for surgical fluorescence microscope applications

In the malignant tumor removal process, fluorescence emission is induced by irradiation with a fluorescent contrast agent and light source to observe the condition of the tumor being removed. Light-emitting diodes (LEDs), which are used in surgical methods to remove tumors through fluorescence emission, have low beam width and power to irradiate lesions. This paper proposes a method for increasing the beam width and power of light (LED). LED light was irradiated with a beam mirror and collected at the target point through a diamond shape. The power of the converged beam was 0.60 mW. Therefore, the power of the light was increased by 4.0 times compared with the conventional method. The proposed method is expected to be mass-produced as a micromodule with semiconductor processing and is considered useful for accurate monitoring when observing the blood flow status of tumors or blood vessels using a fluorescent contrast agent at the surgical site.