【摘要】 光学纤维的传光特性不同于一般的成像光学系统,透过率的测量方法也不同。区别在于,测量传像光纤束透过率时不能采用平行光束,而测量成像光学系统透过率时,即可以采用会聚光束,又可以采用平行光束,只要不拦光即可。光在光纤束中遵循全反射的传光原理,而光在成像光学系统中遵循折、反射传光原理。通过对细小口径传像光纤束透过率的测量方法进行了实验、检测研究,得到一个新的测量光纤束透过率的方法。此方法完全不同于目前国标中光纤束透过率测量方法,又区别于成像光学系统透过率的测量方法。测量传像光纤束透过率时,要求光在光纤束中既要避免拦光现象又要满足全反射条件。我们根据光纤束传光原理研制了一个测量连接装置加到光谱仪的测量光路里,构成一个光纤束透过率测量光路系统。该测量法的重心在测量连接装置上。用该测量法成功地完成了细小口径成像光纤束透过率参数的测量,测量结果与设计预期值接近,测量准确度满足用户使用要求。更多还原

【Abstract】 The light transforming technique of optical fiber is different from the optical system,and the same as the method of transmittance measurement. When we measure the transmittance of the image-carrying optical fiber,we can not use the collimated light,but for the optical system,the collimated light and convergent light can be used for the measurement,as long as the light is not blocked. The light transforming in the optical fiber follows the theory of total reflection,but in the optical system is the law of refraction. We made a lot of research and experiments about the measurement on the image-carrying optical fiber bundle,we got a new transmittance measurement method. This method used for the optical system also. We followed the light transforming principle,developed measurement connecting equipment which is attached to the spectrograph,constituted a transmittance measurement system for the optical fiber bundle. This method has been completed the measure of small diameter image-carrying optical fiber,the results stay the same as designation,measuring accuracy meet the requirements.更多还原