speckle telescope

Ref:204708
When a widened laser beam passes through the telescope objective, the focusing screen produces a speckling figure.A...  Read more
€166.67 Excl. Tax €200.00 Incl. Tax
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Data sheet speckle telescope

Description

When a widened laser beam passes through the telescope objective, the focusing screen produces a speckling figure.
A figure with large speckles is observed when placing the focusing screen in the telescope focal plane. Above and below the housing, the size of the speckle grains is reduced.
Applications: Focometer by interferometry of speckle
Collimation control of a laser beam
Technical specifications (telescope derived from the model 202 579, without eyepiece):
Focal length: 175 mm achromatic AR
Focusing adjustment: rack
External diameter: 38 mm
Effective diameter: 32 mm
Object: focusing screen (in place of the crosshair)
Structure: coated aluminumMaintenance: rod Ø 10 mm L. 130 mm
Storage: plastic case
Recommended source: Laser Torch (ref. 204 080), not provided.

Other Specifications

Caractéristiques techniques (lunette dérivée du modèle 202 579, sans oculaire) :

- Focale : 175 mm achromatique AR
- Réglage de focalisation : crémaillère
- Diamètre extérieur : 38 mm
- Diamètre utile : 32 mm
- Objet : dépoli (à la place du réticule)
- Structure : aluminium laqué
- Maintien : tige Ø 10 mm L. 130 mm
- Rangement : mallette plastique

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