Hasson H M, Lynch M A
P.O. Box 14898, Chicago, IL 60614, USA.
J Am Assoc Gynecol Laparosc. 1993 Nov;1(1):58-9. doi: 10.1016/s1074-3804(05)80760-1.
A new endoscopic camera that does not require a viewing rod lens endoscope has been developed. It consists of a 10-mm metal tube and handle containing a distally placed camera chip. The distal chip endoscope is attached to a combined camera light source and processor by a well-protected cable. Due to the distally placed chip and the fact that no glass rod lenses are used, a full-screen image of improved quality and constant lighting is achieved. Elimination of rod lenses and all but one interface in the system minimizes image distortion, color degradation and interface-related loss of illumination. A bright light is provided across the entire screen uniformly, without variation in intensity or color regardless of temporal proximity to target tissues. The system does not require white balancing or focusing since the color and focus range are set, and it uses a cool 40-W light to achieve the same intensity of existing 300-W lamps. The camera system was used successfully in 30 operative laparoscopy procedures.
一种新型的无需观察棒状透镜内窥镜的内镜摄像头已被研发出来。它由一个10毫米的金属管和手柄组成，手柄内装有一个置于远端的摄像芯片。远端芯片内窥镜通过一根保护良好的电缆连接到一个组合式摄像光源和处理器上。由于芯片置于远端且未使用玻璃棒状透镜，因此可获得质量更高、光照恒定的全屏图像。去除棒状透镜以及系统中除一个接口外的所有其他接口，可将图像失真、颜色退化和与接口相关的光照损失降至最低。整个屏幕均匀地提供明亮的光线，无论与目标组织的时间距离如何，强度或颜色都不会变化。由于颜色和焦距范围已设定，该系统无需白平衡或聚焦，并且它使用一个40瓦的冷光源来达到与现有300瓦灯相同的强度。该摄像系统已成功应用于30例腹腔镜手术中。
