Lens barrel and method for adjusting coaxiality of primary mirror and secondary mirror
A primary and secondary mirror, lens barrel technology, applied in installation, optics, instruments, etc., can solve the problems of low installation and adjustment efficiency, low system stability, etc., to improve work efficiency, increase contact area, and reduce blindness.
Pending Publication Date: 2018-06-12
XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI +1
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Problems solved by technology
[0004] In order to solve the problem of low installation and adjustment efficiency and low stability of the adjusted system in the method of adjusting the coaxiality of the primary and secondary mirrors with the jackscrew, the present invention provides a lens barrel and a method for adjusting the coaxiality of the primary and secondary mirrors. To meet the needs of efficiently adjusting the coaxiality of the primary and secondary mirrors and strengthening the structural stability of the secondary mirrors
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[0032] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0033] combine figure 1 and figure 2 , this embodiment comprises lens barrel body 8, four arc surface frocks 1 and four arc surface frock grooves 4 arranged on the inner wall of lens barrel body 8, the curvature radius of arc surface frock 1 is the same as that of secondary mirror frame 9, and the arc The surface frock 1 is located in the curved surface frock groove 4, and its inner wall is closely attached to the secondary mirror frame 9 to increase the contact surface between the two and improve stability.
[0034] The arc tooling slot 4 matches the arc tooling 1, and the size of the arc tooling slot 4 is designed according to the arc tooling 1, which can ensure that the arc tooling 1 does not deviate during installation and calibration, and that the arc tooling 1 pushes the secondary mirror Linear movement is performed in the radial direc...
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The invention belongs to the field of precision optical machines, and particularly relates to a lens barrel and a method for adjusting the coaxiality of a primary mirror and a secondary mirror. The lens barrel comprises a lens barrel body and at least four arc-surface tools. The inner wall of the lens barrel body is provided with arc-surface tool grooves matched with the arc-surface tools and thefour arc-surface tool grooves are uniformly distributed in the inner wall of the lens barrel body. The arc-surface tools are located in the arc-surface tool grooves. The depth of the arc-surface toolgrooves is larger than the thickness of the arc-surface tools. The arc length of the arc-surface tool grooves is slightly larger than the arc length of the arc-surface tools. In this way, it is ensured that the arc-surface tools do not generate circumferential displacement in the arc-surface tool grooves and can only do linear movement in the radial direction of the lens barrel. The lens barrel body is provided with a jackscrew hole and a jackscrew penetrates through the jackscrew hole to abut against the arc-surface tools. The arc-surface tools are tightly attached to a secondary mirror frame. The problems of low adjustment efficiency and low system stability of an adjusted system by adopting a method for adjusting the coaxiality of the optical axes of the primary mirror and the secondarymirror by utilizing the jackscrew is solved.
Description
technical field [0001] The invention belongs to the field of precision optical machinery, in particular to a lens barrel and a method for adjusting the coaxiality of primary and secondary mirrors, and provides an optimization scheme for adjusting and fixing the coaxiality of the primary and secondary mirrors. Background technique [0002] Since the precision of the reflective optical system is greater than the precision of the centering process of the high-precision lathe, the optical axes of the primary and secondary mirrors often cannot meet the precision requirements of the optical design after optical processing, so further adjustments to the primary and secondary mirrors are required. In the actual installation and calibration, it is necessary to make slight adjustments to the primary reflector or secondary reflector to achieve the purpose of coaxiality of the optical axes of the primary and secondary mirrors. Since the weight of the secondary mirror is smaller than tha...
Claims
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Login to View More IPC IPC(8): G02B7/182
CPCG02B7/1822
Inventor 宋冲刘朝晖辛伟折文集黄静
Owner XI'AN INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI