摘要
为了弄清楚三棱镜的角色散并且利用三棱镜来测定各种不同玻璃的折射率,常常需要知道三棱镜的最小偏角,在摄谱仪中也常将三棱镜安装在接近最小偏角的位置.针对在什么情况下偏角为最小,给出了严格的数学推导过程与证明.
In order to find out the angular dispersion of triangalar prism and to measure refractive index of different glasses used with triangular prism,the minimal angular deviation of triangular prism must be known.Moreover,the triangular prism often be fitted nearby the place of minimal angular.This paper deduces and proves the minimal angular in mathematics strictly.
出处
《兰州工业高等专科学校学报》
2007年第2期15-17,共3页
Journal of Lanzhou Higher Polytechnical College
关键词
三棱镜
角色散
折射率
最小偏角
triangular prism
angular dispersion
refractive index
minimal angular deviation
