3B SCIENTIFIC PHYSICS U21840 Manual - Página 4

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2. Description

The He-Ne laser is a coherent, monochromatic light

source for experiments on reflection, refraction,

diffraction and interference, for the creation and

display of holograms, as well as for rotating the

plane of polarisation (saccharimetry, Kerr effect,

Faraday effect).

The He-Ne-Laser has an anodised metal housing

with a key switch and a neutral filter for attenuat-

ing the beam. Power is supplied via a plug-in

power supply unit. To disperse the beam, micro-

scope objectives may be screwed onto the light

outlet.

2.1 Scope of delivery

1 He-Ne laser

2 Key

2 Stand rods (long and short)

1 Plug-in power supply

2.2 Accessories

For beam dispersal:

e.g. achromatic objective 4x / 0.10

3. Technical data

Output power:

Wavelength:

Beam diameter:

Beam dispersal:

Mode:

Polarisation:

Lifespan:

Power supply:

Dimensions:

Weight:

3B Scientific GmbH • Rudorffweg 8 • 21031 Hamburg • Germany •

W30613

< 0.2 mW, max. 1 mW

(without filter), class 2

633 nm

0.48 mm

1.7 mrad

TEMoo

Random

> 12000 hours

12 V DC, 1 A

200 x 40 x 50 mm

0.6 kg approx.

Subject to technical amendments.

4. Operation

•

Plug the power supply for the laser into the

mains.

•

Turn the key 90° to the right to switch on the

laser.

A laser beam may emerge immediately or after a

few seconds (if the equipment has not been used

for some time). An indicator lamp lights when the

laser is switched on.

•

To turn off the laser turn the key 90° to the

left.

•

To select the power of the laser, the filter lever

may be set to the required position so that the

neutral filter is swung in or out of the beam.

•

For dispersal of the beam, screw a microscope

objective onto the thread.