Optical system focusing mechanism
An optical system and focusing technology, applied in the direction of optics, optical components, instruments, etc., can solve problems affecting imaging quality, tilt or yaw, optical axis deviation, etc., to improve imaging quality, eliminate aberrations, and focus the process smooth effect
Active Publication Date: 2013-11-13
NANTONG SCHMIDT OPTO ELECTRICAL TECH CO LTD
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Problems solved by technology
refer to figure 1 It is a common focusing mechanism, which mainly positions the focusing seat and the focusing lens barrel through self-tightening screws, but this structure often causes the optical axis of the focusing lens barrel to tilt or deflect during the locking process. And it deviates from the optical axis of the telescope, so that there are obvious aberrations in imaging, which seriously affects the imaging quality
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[0020] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and a preferred embodiment.
[0021] refer to Figure 1-Figure 5 , this embodiment relates to a focusing mechanism applied in a telescope system, which includes a focusing lens barrel 2 and a focusing seat 1, an outer sleeve 3 is sleeved on the focusing lens barrel 2, and the focusing seat 1 is fixed On the outer sleeve 3, and the outer sleeve, the focusing lens barrel and the telescope barrel 4 are coaxially arranged, and the focusing seat 1 is provided with a slider 11, and the slider 11 is fixed on the focusing lens barrel 2 The linear guide rail 10 on the outer wall is closely fitted and can slide along the linear guide rail 10 . The sliding block and linear guide rail that cooperate with each other can prevent the optical axis of the focusing lens barrel and the optical system from shifting due to loosening or tightening the locking screw d...
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The invention discloses an optical system focusing mechanism. The optical system focusing mechanism comprises a focusing lens barrel, and a focusing seat, an external sleeve is sleeved on the focusing lens barrel, the focusing seat is fixed on the external sleeve, and the external sleeve, the focusing lens barrel and the optical system are coaxially arranged; a slide block is arranged on the focusing seat, and is in tight fit with a linear guide rail fixed on an outer wall of the focusing lens barrel and slides along the linear guide rail. Furthermore, a positioning block is arranged between the external sleeve and the focusing lens barrel; the positioning block is respectively in tight fit with an inner wall of the external sleeve and the outer wall of the focusing lens barrel, and can slide respectively relative to the inner wall of the external sleeve and the focusing lens barrel. The optical system focusing mechanism can prevent the focusing lens barrel and an optical shaft of the optical system from offsetting when a locking bolt is loosened or tightened in the process of focusing, thereby effectively eliminating aberration and greatly improving the imaging quality; meanwhile, the focusing process can be more level and smooth. The optical system focusing mechanism provided by the invention can be widely applied to various optical, measurement and image pickup systems.
Description
technical field [0001] The invention relates to a focusing mechanism with an improved structure applied in an optical system. Background technique [0002] At present, in optical systems such as astronomical telescopes, a focusing mechanism composed of a focusing lens barrel and a focusing seat is generally installed to adjust the imaging point in the optical system and obtain a good imaging effect. refer to figure 1 It is a common focusing mechanism, which mainly positions the focusing seat and the focusing lens barrel through self-tightening screws, but this structure often causes the optical axis of the focusing lens barrel to tilt or deflect during the locking process. And it deviates from the optical axis of the telescope, so that there are obvious aberrations in imaging, which seriously affects the imaging quality. Contents of the invention [0003] The purpose of the present invention is to provide a focusing mechanism for an optical system with an improved struct...
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Inventor 沈达忠
Owner NANTONG SCHMIDT OPTO ELECTRICAL TECH CO LTD