仪器简介：

RSHN-250 He-Ne Laser works at 632.8nm, which is idea for holography, confocal microscopy, 
spectroscopy, actinochemistry, biochemistry, laser iatrology, scientific research and teaching area. It 
features Singlemode output, higher power, good stability, long lifetime. 
RSHN-250 is composing of laser head and base, this laser head includes laser tube and power supply. 
Laser discharging tube is made in twice modeling, which features precise size, higher single mode output 
power. 
Power supply is switchable high-voltage power supply, which features lightweight, good reliability and 
adaptability.

技术参数：

Technical Specifications: 
Working Wavelength (nm) 632.8 
Mode(TEM) 00（SingleMode） 
Working Current（mA） 5 
Output Power(mW) ≥2 
Beam Diameter(1/e2mm) ≤1.3 
Beam Light divergence(mrad) ≤1.3 
Power Stability <±5%/h 
Input Voltage 220V AC 50Hz 
Output Voltage(max) 7KV 
Light beam Altitude Lowest: 280mm; Highest: 400mm （made on request） 
Pitching Angle ±15° 
Model: RSHN-450 is available for Singlemode output power: 5mW. Also its laser tube length is bigger 
than 250 type, other specifications are the same.