Centering mounting and correcting method for high precision lens
A lens and frame technology, applied in installation, optics, instruments, etc., can solve the problems of the degradation of the imaging quality of the optical system and the influence of the lens surface shape, and achieve the effect of good effect and high precision
Active Publication Date: 2018-05-22
LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC
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Problems solved by technology
[0004] In order to solve the problem that the addition of copper foil in the existing lens centering assembly will affect the surface shape of the lens, resulting in a decrease in the imaging quality of the optical system, the present invention proposes a high-precision lens centering assembly method, which adjusts the lens by directly grinding the end face of the frame The inclination of the lens makes the optical axis of the lens perpendicular to the A reference of the No. 2 frame, no need to add copper foil
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[0023] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0024] In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation indicated by rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc. The positional relationship is based on the orientation or positional relationship shown in the drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than ...
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The invention provides a centering mounting and correcting method for a high precision lens and belongs to precision optical machine installation and correction technology. First, a decentration measurement instrument is used for measuring the lens axis error of perpendicularity of a lens frame mechanical reference relative to a lens; an error direction is marked and a tool fixed on a rotary tableis used for grinding the lens frame mounting end face. According to the invention, the lens axis error of perpendicularity is corrected through grinding the inner hole end face of the lens frame, sothat an aim of realizing coaxial of the lens axes is realized. The method provided by the invention is high in precision, good in effect and does not affect lens form.
Description
technical field [0001] The invention belongs to the technology of precision optical machine assembly and calibration, and relates to a lens centering and calibration method. Background technique [0002] In order to ensure the imaging quality of the optical system, there is a very high requirement for the coaxiality of the optical axis of each lens. However, due to the processing errors of the frame and the lens, direct assembly cannot meet the high coaxiality requirement. Shaft adjustment, this process is called centering process. figure 1 It is the optical-mechanical structure diagram of a certain type of product. It is required that the optical axis of the No. 1 lens is coaxial with the B reference of the No. 2 frame, and perpendicular to the A reference of the No. 2 frame. Due to the processing error of the parts, the coaxiality and verticality requirements specified in the drawings are often not met. The common method is to adjust the inclination of the lens by adding ...
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Login to View More IPC IPC(8): G02B7/02
CPCG02B7/023
Inventor 董续勇张永强葛春晓赵艳平
Owner LUOYANG INST OF ELECTRO OPTICAL EQUIP OF AVIC