Limit adjusting mechanism of microscope objective table
A technology of adjusting mechanism and stage, which is applied in the direction of microscope, optics, instrument, etc., can solve the problems of complex limit structure, too large axis angle, and lower limit failure, etc., and achieve simple structure and reduced axis angle , limited and reliable effect
Inactive Publication Date: 2011-07-13
LEICA MICROSYST LTD SHANGHAI SHANGHAI
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Problems solved by technology
[0006] The problem that arises is: the distance between the contact point of the lower limit and the lower limit rod is too large (that is, about the distance of the cross bar), and the angle between the force direction on the contact point and the axis of the lower limit rod is also too large, resulting in the lower limit Failure; in addition, the overall limit structure is complicated; in addition, the height of the stage can be adjusted by adjusting the distance between the upper limit rod and the compensation block, but at the same time, the total travel of the stage is changed due to the height of the limit position. And the defects that change with it
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[0047] see image 3 , the first rotating shaft 300 passes through the entire limit adjustment mechanism 100, and a first gear 301 is formed in the middle of the first rotating shaft 300; the second rotating shaft 400 is parallel to the first rotating shaft 300, and the second rotating shaft 400 is divided into a second gear 401 and a third gear. Gears 402, wherein the first gear 301 has fewer teeth than the second gear 401 and meshes with the second gear 401, the third gear 402 has fewer teeth than the second gear 401 and meshes with a rack 403, and on the rack 403 The connecting piece that connects the stage is fixed. Turn the first rotating shaft 300, the first gear 301 drives the gear set on the second rotating shaft 400, that is, the second gear 401 rotates, and then drives the second rotating shaft 400 to rotate, and the coaxial third gear 402 drives the rack 403 to move . It can be seen that as long as the first rotating shaft 300 is rotated in the forward and reverse ...
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The invention discloses a limit adjusting mechanism of a microscope objective table, which comprises a first groove arranged on the limit adjusting mechanism, wherein the first groove is provided with a rod moving along the groove; one end of the rod is connected with the inner wall of the first groove through an elastic element, the other end thereof extends to be connected with a block; the block is contacted with a moving terminal; and the mechanism also comprises a constraining member which pushes against at least one side of the rod. The invention has the benefits: 1) adjusting the height of the limiting position of the objective table corresponding to the base of the microscope through changing the position of the rod corresponding to the first groove, with convenient adjustment; 2)not changing the total trip for the adjustment; 3) reducing the axial included angle between the stress of the moving terminal and the block and the rod, with hard breakage in use; and 4) having simple structure and more reliable limiting.
Description
technical field [0001] The invention relates to a limit adjustment mechanism for a microscope stage. Background technique [0002] During the focusing process of the microscope, it is realized by changing the distance between the test material and the objective lens in the working state. There are two ways to adjust the above distance: moving the objective lens vertically without moving the stage; or moving the objective lens vertically up and down without moving the objective lens. In order to prevent the stage from colliding with the objective lens during the movement, resulting in damage to the test materials and the stage, the stage needs to be limited. [0003] Figure 1~2 It is a limit structure of microscope stage. It includes a gear set and first and second gear shafts 100', 200', the first gear 101' of the gear set meshes with the second gear 201', and the second gear 201' is coaxial with the third gear 202', namely Sharing the second gear shaft 200 ′, the third ...
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IPC IPC(8): G02B21/26
Inventor 朱敏华
Owner LEICA MICROSYST LTD SHANGHAI SHANGHAI