Monochromatic, coherent light source for optical experiments, e.g. on diffraction, interference, and hologram reconstitution. Anodised metal housing with key switch, neutral filter for attenuating beam, 2 stand rods and power supply unit. To widen the beam, microscope objectives (e.g. W30614) can be screwed to the beam aperture.
![Helium-Neon Laser, 1003165 [U21840], 位于支架上的光学灯](/imagelibrary/U21840/U21840_01_Helium-Neon-Laser.jpg)
![Helium-Neon Laser, 1003165 [U21840], 位于支架上的光学灯](/imagelibrary/U21840/U21840_02_Helium-Neon-Laser.jpg)
![Helium-Neon Laser, 1003165 [U21840], 位于支架上的光学灯 (Small)](/thumblibrary/U21840/U21840_01_50_50_Helium-Neon-Laser.jpg)
![Helium-Neon Laser, 1003165 [U21840], 位于支架上的光学灯 (Small)](/thumblibrary/U21840/U21840_02_50_50_Helium-Neon-Laser.jpg)
![干涉仪, 1002651 [U10350], 干涉计](/thumblibrary/U10350/U10350_01_140_140_干涉仪.jpg)
![圆筒支脚, 1002834 [U13265], 基底](/thumblibrary/U13265/U13265_01_140_140_圆筒支脚.jpg)
![Experiment: Mach-Zehnder interferometer, 8000685 [UE4030520], Wave optics](/thumblibrary/UE4030520/UE4030520_01_140_140_Experiment-Mach-Zehnder-interferometer.jpg)
![实验：迈克尔逊干涉仪II, 8000787 [UE4030411], Wave optics](/thumblibrary/UE4030411/UE4030411_01_140_140_实验-迈克尔逊干涉仪II.jpg)
![Experiment: Fresnel Biprism, 8000681 [UE4030300], Wave optics](/thumblibrary/UE4030300/UE4030300_01_140_140_Experiment-Fresnel-Biprism.jpg)
![迈克尔逊干涉仪实验组, 8000684 [UE4030410], Wave optics](/thumblibrary/UE4030410/UE4030410_01_140_140_迈克尔逊干涉仪实验组.jpg)
![Experiment: Pockels Effect (230 V, 50/60 Hz), 8000770 [UE4040500-230], Polarisation](/thumblibrary/UE4040500-230/UE4040500-230_01_140_140_Experiment-Pockels-Effect-230-V-5060-Hz.jpg)
![Experiment: Pockels Effect (115 V, 50/60 Hz), 8000769 [UE4040500-115], Polarisation](/thumblibrary/UE4040500-115/UE4040500-115_01_140_140_Experiment-Pockels-Effect-115-V-5060-Hz.jpg)
![15根安全实验导线套件，75mm, 1002843 [U138021], 电循环](/thumblibrary/U138021/U138021_01_140_140_15根安全实验导线套件-75mm.jpg)
![装管, 1002622 [U10146], 软管、流量管](/thumblibrary/U10146/U10146_01_140_140_装管.jpg)
![用于干涉仪的附加装置, 1002652 [U10351], 干涉计](/thumblibrary/U10351/U10351_01_140_140_用于干涉仪的附加装置.jpg)
![直流电源0 – 20 V, 0 – 5 A
(230 V, 50/60 Hz), 1003312 [U33020-230], 供电器](/thumblibrary/U33020-230/U33020-230_01_140_140_直流电源0-20-V-0-5-A-230-V-5060-Hz.jpg)
![成对安全实验导线，75cm, 2,5 mm², 1017718 [U13816], 实验用导线和电缆](/thumblibrary/U13816/U13816_01_140_140_成对安全实验导线-75cm-2-5-mm.jpg)
![High-Quality Vacuum Hand Pump, 1012856 [U205001], 真空泵](/thumblibrary/U205001/U205001_01_140_140_High-Quality-Vacuum-Hand-Pump.jpg)
![通用夹, 1002830 [U13255], 夹具](/thumblibrary/U13255/U13255_01_140_140_通用夹.jpg)
![一套接插线，15个，长度 75 cm, 1002840 [U13800], 电循环](/thumblibrary/U13800/U13800_01_140_140_一套接插线-15个-长度-75-cm.jpg)
![模拟万用表 ESCOLA 100, 1013527 [U8557380], 手持模拟测量仪器](/thumblibrary/U8557380/U8557380_01_140_140_模拟万用表-ESCOLA-100.jpg)
![功率函数生成器（230 V，50/60 Hz）, 1009957 [U8533600-230], 信号函数发生器](/thumblibrary/U8533600-230/U8533600-230_01_140_140_功率函数生成器-230-V-5060-Hz.jpg)
![Digital Multimeter P3340, 1002785 [U118091], 手持数字测量仪器](/thumblibrary/U118091/U118091_01_140_140_Digital-Multimeter-P3340.jpg)
![数字计数器（230 V, 50/60 HZ）, 1001033 [U8533341-230], 数字计数器](/thumblibrary/U8533341-230/U8533341-230_01_140_140_数字计数器-230-V-5060-HZ.jpg)
![袖珍型测量带，2米, 1002603 [U10073], 长度测量](/thumblibrary/U10073/U10073_01_140_140_袖珍型测量带-2米.jpg)
![高频接插线,BNC/4毫米插头, 1002748 [U11257], 实验用导线和电缆](/thumblibrary/U11257/U11257_01_140_140_高频接插线-BNC4毫米插头.jpg)
![双联式三脚架座, 1002835 [U13270], 基底](/thumblibrary/U13270/U13270_01_140_140_双联式三脚架座.jpg)
![高频接插线，长1m, 1002746 [U11255], 实验用导线和电缆](/thumblibrary/U11255/U11255_01_140_140_高频接插线-长1m.jpg)
![光具座滑块 D，90/50, 1002635 [U103111], 使用光具座的光学](/thumblibrary/U103111/U103111_01_140_140_光具座滑块-D-9050.jpg)
![Teltron 管座 S, 1014525 [U185002], 电子管 S](/thumblibrary/U185002/U185002_01_140_140_Teltron-管座-S.jpg)