Novel cross hair direction finder of reading microscope
A technology for reading microscopes and crosshairs, used in instruments, measuring devices, optical devices, etc., can solve the problems of overlapping or parallel operations, unfavorable accurate orientation of the crosshairs, and inability to ensure "vertical" motion, etc. The effect of reducing measurement errors
Inactive Publication Date: 2014-01-22
SICHUAN UNIV
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Problems solved by technology
However, no matter how thin the parallel straight lines made by machining or electric machining are, they look thick in the reading microscope, and the direction of movement of the intersection point of the crosshair coincides with a certain straight line in the parallel straight line of the orienter. Or parallel operation brings great difficulties. If the trajectory of the intersection point of the crosshairs of the reading microscope is between two adjacent reticles, the direction of the orientation can only be moved perpendicular to the moving direction of the crosshairs intersection to make the intersection The trajectory of the point coincides with a reticle. The operator cannot guarantee this "vertical" movement at all, and can only adjust it repeatedly, or visually observe that the trajectory of the intersection point of the crosshairs is parallel to the nearest reticle. This is not true. Facilitates accurate orientation of the crosshairs
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[0012] exist figure 1 , figure 2 and image 3 Among them, the lower slide (4) is placed at the bottom of the slide groove (3), its right end is blocked by the set screw (11), the left end of the upper slide (2) is on the upper left of the lower slide (4), and its right end is on the push rod ( 13), the wedge seat (1) is on the base (7), and the adjustment rod (9) is fixed in the adjustment rod groove (12) of the wedge seat (1) through the set screw (11) and the spherical pad (10). ), the right end of the adjustment rod (9) is passed through the rectangular hole of the upper slide rod (13), the left end is connected to the adjustment screw (5), and is limited by the limit nut (8), and the adjustment rod (9) The length of the connecting part between the middle and the adjusting screw (5) is 3 to 10 times the length of the connecting part between the adjusting rod (9) and the upper slide rod (13), and the lower part of the adjusting screw (5) is screwed into the base screw hol...
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The invention provides a novel cross hair direction finder of a reading microscope, which mainly comprises slides, a wedge seat, a regulation rod, a jacking rod and a base. An upper slide and a lower slide form a wedge, a monochromatic light is reflected onto the upper and lower slides from above the slides in virtue of a reflective mirror, clear wedge interference image is regulated in the reading microscope, the regulation rod can regulate the included angle of the wedge so as to change thickness and density of interference fringes, and a horizontal screw and a spring can adjust the direction of the interference fringes finely. A rotor wheel of the reading microscope is adjusted, and moving direction of the cross hair intersection is observed and enabled to coincide with one interference straight fringe; and then an eyepiece cylinder of the reading microscope is rotated to allow a cross hair transverse line to coincide with the interference straight fringe, and a cross hair vertical line is perpendicular to the measurement moving direction.
Description
technical field [0001] The present invention relates to the structural design of the crosshair orientator of the reading microscope used in the measurement of interference image parameters such as Newton's ring and wedge, in particular to the generation device of the parallel thin line of the crosshair orienter of the reading microscope, which is used for Newton's ring and wedge In the instrument adjustment operation before the measurement of the interference image parameters. Background technique [0002] When using a reading microscope to measure the diameter of the ring and the distance between parallel straight lines, it is first required to adjust the vertical line of the crosshair to be perpendicular to the direction of measurement movement, and this adjustment is done by the operator's visual inspection, and the error is large, resulting in measurement The result is very wrong. Patent 201110068438.X designed a reading microscope crosshair orientator, which processed ...
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IPC IPC(8): G01B9/04
Inventor 朱俊汪仕元张礼元蒲廷燕范云鹤于白茹李伟梁小冲李紫源
Owner SICHUAN UNIV