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25 October 2016 Novel design of focal length adjusting apparatus with long journey
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Abstract
In the field of telescope applications, it needs to adjust the focus to get clearer image of objects at different distance. Novel design of focus adjusting apparatus with long journey is presented here. This apparatus has long journey of second mirror extended to 20mm. And its adjusting precision is about 0.1μm. This apparatus can be controlled with two modes. One mode is manual control. The other mode is automatic control. The design can be applied to the fields of telescopes which needs long adjusting range and high precision.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Cheng-liang Ge "Novel design of focal length adjusting apparatus with long journey", Proc. SPIE 9685, 8th International Symposium on Advanced Optical Manufacturing and Testing Technologies: Design, Manufacturing, and Testing of Micro- and Nano-Optical Devices and Systems; and Smart Structures and Materials, 968510 (25 October 2016); https://doi.org/10.1117/12.2243243
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