袖珍型家用级摄录机照明增强改进方法研究

Improvement of illumination of compact household camcorder

目的:研究袖珍型家用级摄录机照明的增强改进方法。方法:定制螺纹接口式CREE灯珠环形灯及其光源控制器,并通过螺纹将定制的环形灯与GZ-HM300AC袖珍型家用级摄录机对接。分别在有无增强照明的条件下通过该摄录机观察新鲜龙珠不同深度的创腔,规定视屏图像明亮且光线分布均匀、结构清楚、层次分明为有效照明。结果:定制的螺纹接口式CREE灯珠环形灯精致美观、造价低,与GZ-HM300AC袖珍型家用级摄录机对接简便、稳固,即使高倍观察(20×)10 cm深的创腔,有效照明距离也超过100 cm。结论:将该增强照明方法应用于袖珍型家用级摄录机,有可能在颅脑显微手术中替代近距离观察用便携式视频单筒望远镜。

Objective To study the improvement of the illumination of the compact household camcorder. Methods A CREE LED ring light with a close nipple and its controller were customized, which were connected with GZ-HM300 AC compact household camcorder through the nipple. Then the camcorder was used to observe the wound cavities with different depths on fresh pitaya, with or with not enhanced illumination. The effectiveness of the illumination was determined by the brightness,evenly-distributed light, structure and resolution of the image on the vision display. Results The tailored LED ring light behaved well in appearance, cost and the interface with GZ-HM300 AC compact household camcorder. The wound cavity with a depth of 10 cm could be observed with the developed camcorder in case of 20 power, with an effective distance more than 100 cm.Conclusion The compact household camcorder with improved illumination may replace the portable video monocular telescope in craniocerebral microsurgery.