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2. 发明申请

US20110005119A1 REAR APERTURE SIGHT FOR RIFLE 审中-公开
标题翻译：后面的手段瞄准了RIFLE
公开(公告)号：US20110005119A1
公开(公告)日：2011-01-13
申请号：US12837082
申请日：2010-07-15
申请人： Arthur Neergaard , Richard H. Neergaard
发明人： Arthur Neergaard , Richard H. Neergaard
IPC分类号： F41G1/08
CPC分类号： F41G1/01 , F41G1/08
摘要： A rear aperture sight for use in conjunction with a front sight post sight on a rifle. The front sight post has a horizontal top edge and vertical side edges. The rear aperture sight comprises a rear sight adapted to be mounted on the rifle. The rear sight has a horizontally elongated aperture formed therein having height and width dimensions. The width dimension is greater than the height dimension. The aperture is defined by two circular segments s1 and s2 having chords c1 and c2, respectively, defined by included angles θ1 and θ2, respectively, of circles having radii R1 and R2, respectively. The chords c1 and c2 have heights h1 and h2, respectively. Radii R1 and R2 and angles θ1 and θ2 are selected such that chords c1 and c2 are of equal length. The circular segments are positioned such that chords c1 and c2 are co-linear and oriented horizontally. In another aspect, the rear sight has at least one aperture plate having an aperture formed therein which defines an entrance pupil for an eye of a shooter of the rifle. The entrance pupil is horizontally elongated having a height h and a width w, the width w being at least about 125% of the height h, the height h being smaller than a diameter of a pupil of the eye of the shooter and of such a value that the entrance pupil is adapted to cause the horizontal top edge of the front sight post and a horizontal edge of a target to be more sharply focused than if viewed by an unaided eye, the width w being of such a value that an area defined by the entrance pupil is greater than an area defined by a circular entrance pupil having a diameter equal to the height h, thereby permitting more light to pass through the entrance pupil than through the circular entrance pupil, and causing the front sight post and the target to appear brighter than if viewed through the circular entrance pupil.
摘要翻译：一个后视镜，用于与步枪上的前视瞄准镜配合使用。前视镜具有水平的顶部边缘和垂直的侧边缘。后视镜包括适于安装在步枪上的后视镜。后视镜具有形成在其中的具有高度和宽度尺寸的水平伸长的孔。宽度尺寸大于高度尺寸。孔由分别由具有半径R1和R2的圆的夹角α和α分别定义的具有和弦c1和c2的两个圆形段s1和s2限定。和弦c1和c2分别具有高度h1和h2。选择半径R1和R2以及角度和角度1和角度2，使得和弦c1和c2具有相等的长度。圆形段被定位成使得和弦c1和c2是共线的并且水平取向。在另一方面，后视镜具有至少一个具有形成在其中的孔的孔板，其限定了用于步枪射击者的眼睛的入射光瞳。入射光瞳水平伸长，具有高度h和宽度w，宽度w至少为高度h的约125％，高度h小于射手眼睛瞳孔的直径，值是入射光瞳适于导致前视镜的水平顶部边缘和目标的水平边缘比通过肉眼观察时更加聚焦，宽度w是这样定义的面积的值通过入射光瞳大于由直径等于高度h的圆形入射光瞳限定的区域，从而允许更多的光通过入射光瞳而不是通过圆形入射光瞳，并使前视镜和目标看起来比通过圆形入场瞳孔更亮。

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