会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 5. 发明授权
    • Method and apparatus for focusing a beam of light on an object
    • 用于将光束聚焦在物体上的方法和装置
    • US4633074A
    • 1986-12-30
    • US616254
    • 1984-06-01
    • Rino E. Kunz
    • Rino E. Kunz
    • G02B7/28B23K26/04G01J1/20G01C3/08
    • B23K26/04
    • Focusing of a light beam on an object is effected by two mutually complementary techniques: in the first technique the beam spot on the object is reproduced on several measuring diaphragms arranged at different distances from the image plane and the light not blocked by the measuring diaphragms is evaluated for the detection of the focal point. This technique is highly sensitive and reacts rapidly. It is used for the continuous setting and resetting of focusing. The second technique utilizes the phenomenon of "speckling". Herein the light back scattered by the beam spot is evaluated for its granulation and optimum focusing determined as a function of the maximum coarseness of granulation. This second technique is insensitive to alignment and is thus used to calibrate the first technique. Both methods together yield a highly sensitive, precise and stable focusing system satisfying all practical requirements to a high degree.
    • 将光束聚焦在物体上是通过两种相互补充的技术实现的:在第一种技术中,物体上的光束点在与图像平面不同的距离处布置的几个测量膜片上被再现,并且不被测量膜片阻挡的光是 评估了焦点的检测。 这种技术非常敏感,反应迅速。 用于聚焦的连续设置和复位。 第二种技术利用“斑点”现象。 这里评估由光束斑点反射的光,其造粒和最佳聚焦确定为粒化的最大粗度的函数。 第二种技术对对准不敏感,因此用于校准第一种技术。 这两种方法一起产生了高灵敏度,精确和稳定的聚焦系统,高度满足所有实际要求。