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  Surveying Instrument Collection 

Maker

Wild, Heerbrugg, Switzerland

Model

GDR-11 Triple Prism Reflector, Part No. 258979.

Serial Number

---

Dimensions

165 x 115 x 295 mm

Image

Wild GDR-11 Triple Prism Reflector

Wild GDR-11 Triple Prism Reflector

Description

Reflector with three rectangular EDM prisms. The prisms are arranged vertically above each other, tiltable (about centre of middle prism) and rotatable (about vertical axis).

Triagular target at bottom for direction measurements.

Gun-sight on top for pointing to EDM instrument.

History & comments

Designed for the first electro-optical distance meter (DI10) of Wild Heerbrugg. The rectangular shape of the individual prisms is due to the side-by-side arrangement of transmitting and receiver optics of the Wild Distomat DI10.

Conservation

In cylindrical plastic transport case (190 mm diameter, 360 mm high)

Condition

good, both triple prism and case. No tribrach included.

Remarks

Case carries the inscription "P/C 35807, s/n 258979"

Dates

Manufactured ca. 1969.

Catalogued by J. M. Rüeger on 8 November 2010. Photos by J. M. Rüeger.

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