Dichroscope fixing structure

Abstract

The utility model provides a dichroscope fixing structure which comprises a fixing foot and a lens base, the lens base is provided with a fixing face and a light hole, a horizontal fixing portion protruding out of the fixing face is arranged below the fixing face, a vertical fixing portion protruding out of the fixing face is arranged on one side of the fixing face in the vertical direction, and the horizontal fixing portion and the vertical fixing portion are arranged on the other side of the fixing face in the vertical direction. A tool withdrawal groove is further formed between the horizontal fixing part and the fixing face and between the vertical fixing part and the fixing face. According to the dichroscope fixing structure, the dichroscope fixing surface is arranged on the lens seat, the light hole is arranged at the center of the fixing surface, the raised fixing part is arranged around the fixing surface, and the tool withdrawal groove is arranged at the joint of the fixing part and the fixing surface. Compared with the prior art, the fixing structure of the dichroscope is simple in structure, eliminates an arc angle left by a processing cutter between the fixing portion and the fixing face when the protruding fixing portion is processed, solves the technical problem that the dichroscope can not be well attached to the fixing face when installed, and is good in stability, simple in structure and good in effect due to the fact that the fixing structure is adopted.

Description

Technical Field

[0001] The utility model relates to the technical field of optical component installation, in particular to a dichroic mirror fixing structure. Background Art

[0002] In image detection instruments, mirrors are often used to transmit light paths. In these instruments, the mirrors need to be fixed to the base plate, and the mirror base and the base plate are usually fixedly connected by a snap-on method. Although the snap-on method is convenient to install, after a period of use, the snap-on part is easily misaligned, resulting in deviations, which need to be readjusted. Moreover, even today when modern technology is relatively developed, for precision optical instruments, the superposition of various processing errors and tolerances cannot theoretically eliminate the system deviation caused by the general installation structure, but can only be minimized. The dichroic mirror is a light transmission component of the confocal microscope. It takes into account the starting and ending of the light path transmission at the same time, and is one of the starting sources of deviation. If the light path is returned after multiple deviations, the final deviation will be further amplified, and the detection result is obviously not accurate enough to meet the detection requirements of the confocal microscope. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art or reduce the influence of the prior art problems on the detection results. To this end, the utility model proposes a dichroic mirror fixing structure, comprising a fixing foot 1, a mirror base 2 arranged on the fixing foot 1, a fixing surface 22 arranged on the mirror base, a light-transmitting hole 23 arranged on the fixing surface, a horizontal fixing portion 24 protruding from the fixing surface arranged below the fixing surface, and a vertical fixing portion 25 protruding from the fixing surface arranged on one side of the fixing surface in the vertical direction.

[0004] Furthermore, the horizontal fixing portion 24 is a horizontal long strip boss one, and a horizontal backing groove 26 with a groove depth direction perpendicular to the fixing surface is provided between the boss one and the fixing surface. The horizontal backing groove 26 is connected to the fixing surface 22 on one side and connected to the horizontal fixing portion 24 on the other side.

[0005] Furthermore, the vertical fixing portion 25 is a vertical long strip boss 2, and a vertical tool retreat groove 27 with a groove depth direction perpendicular to the fixing surface is provided between the boss 2 and the fixing surface 22. The vertical tool retreat groove 27 is connected to the fixing surface 22 on one side and connected to the vertical fixing portion 25 on the other side.

[0006] Furthermore, the fixed foot 1 includes a rectangular foot base 11, and waist-shaped holes 12 for fixing are arranged on both sides of the foot base. The mirror base 2 includes a main body 21 connected to the fixed foot 1, and the reference plane 28 of the main body is located in the plane where a vertical long side plane of the foot base 11 is located. The angle between the fixing surface 22 and the reference plane 28 is 45°, and the light-transmitting hole 23 is parallel to the reference plane 28.

[0007] Furthermore, the main body 21 is substantially a right quadrangular prism or a right pentagonal prism, and the fixing foot 1 is connected to the lower bottom surface of the right quadrangular prism.

[0008] Furthermore, the fixed foot 1 also includes a connecting seat 13 integrally connected to the main body 21, and adjustment parts 14 are respectively integrally provided at both lateral ends of the connecting seat, one of the adjusting parts is provided with an arc-shaped adjustment hole 15, and the other adjusting part is provided with a fixing hole, and the connecting seat 13, the adjustment part 14 and the foot seat 11 are separately provided and fixedly connected by bolts passing through the adjustment holes and the fixing holes.

[0009] Furthermore, the arc of the adjustment hole takes the fixing hole as its center.

[0010] The dichroic mirror fixing structure of the utility model is provided with a dichroic mirror fixing surface on the mirror seat, a light transmission hole is provided at the center position of the fixing surface, a raised fixing part is provided around the fixing surface, and a tool withdrawal groove is provided at the connection between the fixing part and the fixing surface, thereby eliminating the arc angle left by the machining knife between the fixing part and the fixing surface when machining the raised fixing part, and solving the technical problem that the dichroic mirror cannot be well fitted with the fixing surface when installed. The utility model adopts a fixed structure with good stability, and the utility model has a simple structure and achieves good effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is a structural schematic diagram of a dichroic mirror fixing structure provided by the utility model;

[0012] Figure 2 yes Figure 1 Schematic diagram of the structure after installing the dichroic mirror;

[0013] Figure 3 It is a structural schematic diagram of another dichroic mirror fixing structure provided by the utility model.

[0014] Among them, 1. fixed foot; 11. foot seat; 12. waist-shaped hole; 13. connecting seat; 14. adjustment part; 15. adjustment hole; 2. mirror seat; 21. main body; 22. fixed surface; 23. light-transmitting hole; 24. horizontal fixing part; 25. vertical fixing part; 26. horizontal back-cut groove; 27. vertical back-cut groove; 28. reference surface; 3. dichroic mirror. DETAILED DESCRIPTION

[0015] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0016] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0017] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "set" should be understood in a broad sense, for example, they can be fixedly connected or set, or detachably connected or set, or integrally connected or set. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0018] Embodiment 1

[0019] like Figure 1 As shown, a dichroic mirror fixing structure disclosed in this embodiment includes a fixing foot 1, a mirror base 2 arranged on the fixing foot 1, a fixing surface 22 is arranged on the mirror base, a light-transmitting hole 23 is arranged on the fixing surface, a horizontal fixing portion 24 protruding from the fixing surface is arranged below the fixing surface, and a vertical fixing portion 25 protruding from the fixing surface is arranged on one side of the fixing surface in the vertical direction. The lower edge of the dichroic mirror is installed closely against the horizontal fixing portion 24, and the left edge is installed closely against the vertical fixing portion 25.

[0020] The horizontal fixing part 24 is a horizontal long strip boss 1, and a horizontal undercut 26 with a groove depth direction perpendicular to the fixing surface is provided between the boss 1 and the fixing surface. One side of the horizontal undercut 26 is connected to the fixing surface 22, and the other side is connected to the horizontal fixing part 24. The vertical fixing part 25 is a vertical long strip boss 2, and a vertical undercut 27 with a groove depth direction perpendicular to the fixing surface is provided between the boss 2 and the fixing surface 22. One side of the vertical undercut 27 is connected to the fixing surface 22, and the other side is connected to the vertical fixing part 25. When the planar boss parts are generally processed, the boss root has a tiny arc structure due to tool processing factors. For precision instruments, this tiny arc structure also causes the dichroic mirror to be unable to be tightly attached to the boss, resulting in the dichroic mirror being skewed. The design of the undercut eliminates the arc structure, effectively solving this problem.

[0021] The fixed foot 1 includes a rectangular foot base 11, and waist-shaped holes 12 for fixing are arranged on both sides of the foot base. The mirror base 2 includes a body 21 connected to the fixed foot 1, and the reference plane 28 of the body is located on the plane where a vertical long side plane of the foot base 11 is located. The angle between the fixed surface 22 and the reference plane 28 is 45°, and the light-transmitting hole 23 is parallel to the reference plane 28. During installation, the fixed foot 1 is fixed to the bottom plate with fixing bolts passing through the waist-shaped holes, and the waist-shaped holes can be slightly adjusted in position.

[0022] The body 21 is generally a straight quadrangular prism or a straight pentagonal prism. Of course, the body can also be in other shapes, as long as a fixing surface can be set on the body and a light-transmitting hole is set in the center of the fixing surface. However, because the angle between the fixing surface and the reference plane is 45°, a straight quadrangular prism is generally suitable, in which a right-angled surface is the reference plane, and the edges of the prism are cut to form blunt edges to reduce sharpness and form a straight pentagonal prism. The fixing foot 1 is connected to the lower bottom surface of the straight quadrangular prism or the straight pentagonal prism, and after the connection, the straight quadrangular prism or the straight pentagonal prism protrudes from the fixing foot.

[0023] The structural schematic diagram after the dichroic mirror is installed on the fixed surface 22 is as follows Figure 2 shown.

[0024] Embodiment 2

[0025] like Figure 3As shown, on the basis of the first embodiment, in order to increase the adjustability of the light path transmission angle of the dichroic mirror, the fixed foot is disassembled, and the fixed foot 1 also includes a connecting seat 13 integrally connected to the main body 21, and the connecting seat 13 is integrally provided with adjustment parts 14 at both ends of the lateral direction, one of the adjusting parts is provided with an arc-shaped adjustment hole 15, and the other adjusting part is provided with a fixing hole, and the arc of the adjustment hole takes the fixing hole as the center; the connecting seat 13 is separately provided with the foot seat 11 and is fixedly connected with bolts passing through the adjustment holes, and finally fixedly mounted on the base plate through the fixing holes.

[0026] Although the embodiments of the present invention have been shown and described, those skilled in the art will appreciate that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A dichroic mirror fixing structure, characterized in that: The invention comprises a fixing foot (1), a mirror base (2) arranged on the fixing foot (1), a fixing surface (22) being arranged on the mirror base, a light-transmitting hole (23) being arranged on the fixing surface, a horizontal fixing portion (24) protruding from the fixing surface being arranged below the fixing surface, and a vertical fixing portion (25) protruding from the fixing surface being arranged on one side of the fixing surface in the vertical direction.

2. The dichroic mirror fixing structure according to claim 1, characterized in that: The horizontal fixing portion (24) is a horizontal long strip boss one, and a horizontal tool retreat groove (26) is provided between the boss one and the fixing surface, the groove depth direction of which is perpendicular to the fixing surface, and the horizontal tool retreat groove (26) is connected to the fixing surface (22) on one side and connected to the horizontal fixing portion (24) on the other side.

3. The dichroic mirror fixing structure according to claim 2, characterized in that: The vertical fixing portion (25) is a vertical long strip boss 2, and a vertical tool retreat groove (27) whose groove depth direction is perpendicular to the fixing surface is provided between the boss 2 and the fixing surface (22). The vertical tool retreat groove (27) is connected to the fixing surface (22) on one side and to the vertical fixing portion (25) on the other side.

4. The dichroic mirror fixing structure according to claim 1, characterized in that: The fixed foot (1) comprises a rectangular parallelepiped foot seat (11), and waist-shaped holes (12) for fixing are arranged on both sides of the foot seat. The mirror seat (2) comprises a body (21) connected to the fixed foot (1), and a reference plane (28) of the body is located on a plane where a vertical long side plane of the foot seat (11) is located, and the angle between the fixed surface (22) and the reference plane (28) is 45 degrees, and the light-transmitting hole (23) is parallel to the reference plane (28).

5. The dichroic mirror fixing structure according to claim 4, characterized in that: The body (21) is generally a straight quadrangular prism or a straight pentagonal prism, and the fixing foot (1) is connected to the lower bottom surface of the straight quadrangular prism.

6. The dichroic mirror fixing structure according to claim 4, characterized in that: The fixed foot (1) also includes a connecting seat (13) integrally connected to the body (21), and adjustment parts (14) are integrally provided at both lateral ends of the connecting seat, one of the adjustment parts is provided with an arc-shaped adjustment hole (15), and the other of the adjustment parts is provided with a fixing hole, and the connecting seat (13), the adjustment part (14) and the foot seat (11) are separately provided and fixedly connected by bolts passing through the adjustment holes and the fixing holes.

7. The dichroic mirror fixing structure according to claim 6, characterized in that: The arc of the adjustment hole takes the fixing hole as its center.

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