Multiple axis reticle

Details Multiple axis reticle Multiple axis reticle

1989-10-06

1990-09-18

Arnold, Bruce Y.

33261, G02B 2300, F41G 1100

Patent

active

049573578

ABSTRACT:
A reticle (10) permits the alignment of three orthogonal axes (X, Y and Z) that intersect at a common target point (30). Thin, straight filaments (12, 14 and 16) are supported on a frame (20). The filaments are each contained in a different orthogonal plane (S.sub.xy, S.sub.xz, and S.sub.yz) and each filament intersects two of the three orthogonal axes. The filaments, as viewed, along the frame axis (22), give the appearance of a triange (24) with a V (17) extending from each triangle vertex (25, 26, and 27). When axial alignment is achieved, the filament portions adjacent to a triangle vertex are seen (along the axis of interest) as a right-angle cross, whereas these filament portions are seen to intersect at an oblique angle when axial misalignment occurs. The reticle is open in the region near the target point leaving ample space for alignment aids such as a pentaprism 54 or a cube mirror 41.

REFERENCES:
patent: 730016 (1903-06-01), Hein
patent: 1189422 (1916-07-01), Bodmer
patent: 2466724 (1949-04-01), Meyer
patent: 3545086 (1970-12-01), Brill et al.
patent: 4380876 (1983-04-01), Strassburg

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