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Class 3R, over 1.2 mW TEMoo red (633 nm) HeNe laser + Power Supply, Hughes

$ 81.31

Availability: 100 in stock

Description

For sale is an old but in perfect working condition HeNe laser head together with a brick power supply, made by Hughes Aircraft Co. in USA. The power supply has also the power cord attached, and in series with the neutral wire is inserted a 1 A fuse, for protection (picture #1). The laser + power supply work by plugging directly the cord to the 120 VAC mains. The laser head is a metallic, cylindrical tube enclosure, 43 mm dia. x 270 mm length (picture #2 - #4) and shows some minor signs of its age. The type of the laser head is 3222H-PC-02. At its output end it has a mechanical shutter, activated by a flat screwdriver (picture #4). The laser head is manufactured in Dec. 1988. The brick power supply (pictures #5 - #8) is perhaps made by Laser Drive, Inc., USA, but sold by Hughes. It can be powered from 115/230 VAC, 0.31/0.155 A, delivering 2,150 VDC high voltage specifically for this type of laser head, with a DC current of 6.5 mA. It uses at the input 115/230 VAC with 0.12/0.06 A. The wires of the power supply are connected for 115 - 120 VAC mains (wiring diagram attached, picture #9). The combination laser head/ power supply was professionally tested during long term operation and the results are summarized below. The laser delivers a measured output power of over 1.2 mW (pictures #10 - #12 for the lab. measurements; note that the equipment in these pictures is not for sale). It represents a laser hazard class 3R (for HeNe lasers with powers between 1 mW - 5 mW). The warm up time is cca. 10 min. The beam is linearly polarized. This laser can be best used for
educational optical experiments as interferometry, polarization measurements, fiber optics, beam characterization, or as a nice collectible item of laser history. Great tool for professionals or hobbyists.