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KMID : 1011420130180040519
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Journal of Korean Ophthalmic Optics Society
2013 Volume.18 No. 4 p.519 ~ p.524
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Development of Dot Sight with Prism Beam Splitter
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Lee Dong-Hee
Jung Bo-Seon
Park Seung-Hwan
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Abstract
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Purpose:This study relates to the development of dot-sight device, whose length is reduced, with a prism beam
splitter.
Methods:We developed a new dot-sight device whose length was reduced by eliminating the optical axis
tilt of the doublet reflector to reduce the occurrence of the parallax and by redesigning the doublet reflector to use
a prism beam splitter.
Results:We could develop the new type dot-sight device having a prism beam splitter and
the dot reticle generator and the doublet reflector, of which optical axises showed a T-letter type with the optical
axis of the observer’s eye.
Conclusions:In this study, we designed and developed a new type dot sight
employing a prism beam splitter that could be able to further enhance the accuracy of the fire in comparison with
the traditional dot sight, thereby reducing the overall optical length of system. The new designed dot sight was
able to be reduced 2.2 times on the overall optical length, and could be improved more than three times on the
accuracy of shooting in the horizontal direction, than the traditional dot sight.
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KEYWORD
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Prism beam splitter , Dot sight , Parallax , Doublet reflector
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