Elevation Measurement apparatus

Details Elevation Measurement apparatus Elevation Measurement apparatus

1997-04-07

1999-04-13

Hellner, Mark

Optics: measuring and testing

Range or remote distance finding

With photodetection

33292, 33294, G01C 0308, G01C 1506

Patent

active

058943447

ABSTRACT:
An elevation measurement instrument including a support ruler, an optical instrument and a bracket pivotally coupling the optical instrument to the support ruler. The optical instrument includes a first ocular mount having a telescope with a horizontal crosshair and a second ocular mount having a horizontal alignment level device. The bracket couples the optical instrument to the ruler along a horizontally balanced axis. The bracket includes a position indicator colinearly aligned with the horizontal crosshair.

REFERENCES:
patent: 2896327 (1959-07-01), Thomann
patent: 3460260 (1969-08-01), Sarlandt
patent: 5087125 (1992-02-01), Narutaki

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