型號 90/05   No. 90/05 小型手動臺式   Small manual and table model 可放在臺上，在（玻璃管或玻璃儀器等）組裝工作中可很好地適用   Can also be placed on a table, very well suited during assembly work (tube lines or assembly of glass apparatuses etc.) 光源：E 14螺口燈泡, 25瓦 – 230 伏, 50Hz 分析器直徑：                                   70 mm 偏光器直徑：                                   70 mm 偏光器和分析器之間較大距離：      約 200 mm                                                             偏光器和分析器之間的距離可以通過接頭調(diào)整     Light source: bulb with thread E 14, 25 Watts – 230 Volts, 50 cycles Diameter of analyzer:                                              70 mm Diameter of polarizer:                                              70 mm Max. distance between analyzer and polarizer:                                                                       appr. 200 mm The distance between analyzer and polarizer can be adjusted via joint.