Abstract
It is common practice to use some sort of lens system between the arc-spark stand and the spectrograph in spectrochemical analyses. In many instances the lens closest to the arc gap receives considerable spatter from the arc and gradually deteriorates. A metal shield, shown in Figure 1, limits the unobstructed path between the arc gap and the lens to the cone required by the optical arrangement. This reduces the number of spatter particles hitting the lens, especially the destructive heavy particles which require trajectories that are cut off by the shield. The device also aids in keeping dust off the lens.
PDF Article
More Like This
Silicon optical modulator with shield coplanar waveguide electrodes
Xiaoguang Tu, Ka-Fai Chang, Tsung-Yang Liow, Junfeng Song, Xianshu Luo, Lianxi Jia, Qing Fang, Mingbin Yu, Guo-Qiang Lo, Po Dong, and Young-Kai Chen
Opt. Express 22(19) 23724-23731 (2014)
Cited By
You do not have subscription access to this journal. Cited by links are available to subscribers only. You may subscribe either as an Optica member, or as an authorized user of your institution.
Contact your librarian or system administrator
or
Login to access Optica Member Subscription