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KMID : 1011420210260020121
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Journal of Korean Ophthalmic Optics Society
2021 Volume.26 No. 2 p.121 ~ p.127
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6X Scope Design for a Complex Optical Sighting Device
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Jeung Bo-Sun
Lee Soo-Cheon
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Abstract
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Purpose: This study aimed to design a 6X scope for a composite optical aiming device that would allow imaging of the thermal optical system and the objective lens of the scope to be seen using an eyepiece lens.
Methods: By using the existing commercial thermal optical system and combining it with a 6X scope composed of an eyepiece lens, the optical pass length (OPL) folding section, imaging surface rotator, and objective lens, we were able to develop a new type of the composite optical aiming device.
Results: The newly designed 6X scope for composite optical aiming devices consisted of an eyepiece lens with a 24.57 mm focal length, a light path folding section with two reflective surfaces, and an objective lens with a 147.43 mm focal length. Additionally, it was confirmed that this 6X scope had a maximum viewing angle of 3.75°, and it was an optical system with finite ray aberrations of less than ±4 minutes.
Conclusions: By designing a 6X scope with an OPL folding section and an imaging surface rotator that can be combined with existing commercial thermal optics, we have developed a composite optical aiming device that uses a single eyepiece.
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KEYWORD
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Thermal optical system, Eyepiece, Folding section of OPL, 6X scope, Imaging surface rotator
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