Sight means
AssigneeInogon Licens AB
InventorIvan Forsen
Life of this patent
Estimating the term…
Abstract
A sight means, particularly for weapons and other objects which are intended to be sighted onto a given point, comprises two mutually spaced and two mutually parallel grid discs (3,4) each of which includes a transparent disc provided with concentrically lying opaque grid lines separated by transparent interspaces, and which grid discs (3,4) are arranged in a tubular housing (2). In accordance with the invention a central region (7,8) is devoid of opaque lines in the center of the discs (3,4) this region having a size of approximately 1/5 to 1/2 of the disc diameter, or a corresponding measurement, the target being intended to be viewed through the aforesaid regions. In accordance with one embodiment one (3;4) of the grid discs has solely one more opaque line than the other (4;3) of the grid disc in the region provided with grid lines.
Claims9
A sight means, particularly for weapons and objects which are to be sighted onto a given point, comprising:
- two mutually spaced and mutually parallel grid discs (3, 4), each of which includes a transparent disc provided with concentrically lying opaque grid lines (5) separated by transparent interspaces (6);
- said grid discs (3, 4) being arranged in a tubular housing (2) with two ends;
- located in the centre of each of said discs (3, 4) is a central region (7, 8) which is devoid of opaque lines (5) and which has a size corresponding approximately to 1/5 to 1/2 of the disc diameter, through which regions the target is intended to be viewed;
- said two grid discs (3, 4) having opaque lines (5) whose widths exceed the width of the transparent interspaces (6);
- said grid discs (3, 4) having mutually different graduation, i.e. a mutually different number of opaque lines (5) per unit of length perpendicular to the opaque lines;
- a first distance (a) between the grid discs (3, 4) being dimensioned shorter than a second distance (c) between one end (9) of the housing (2), said one end defining a viewing aperture (10) for the person using the sight means, and the grid disc (4) located nearest the viewing aperture (10);
- and said second distance (c) having a dimension which exceeds the distance corresponding to the near point of a normal eye adjacent the viewing aperture.
Dependencies are inferred from the claim text.