Objective lens structure of slide scanner

Abstract

The utility model relates to the technical field of slide scanning, in particular to an objective lens structure of a slide scanner. Comprising a support, and a guide mechanism with a stepped track is arranged at the bottom of the support; the objective lens fixing seat is arranged at the bottom of the support and slidably connected with the guide mechanism, and a plurality of objective lenses are arranged on the objective lens fixing seat; and the driving mechanism is arranged on the support, is connected with the objective lens fixing seat, and controllably drives the objective lens fixing seat to move along the arrangement direction of the objective lens so as to switch the objective lens to a scanning position. According to the utility model, a plurality of objective lens supports are separated and connected into a whole, and the guide mechanism is arranged in a stepped manner so as to ensure that the objective lens supports are not interfered by slides after switching, thereby ensuring the scanning quality.

Description

Technical Field

[0001] The utility model relates to the technical field of glass slide scanning, in particular to an objective lens structure of a glass slide scanner. Background Art

[0002] At present, the structure of the double objective lens of the slide scanner is that the two double objective lenses are fixed on the same support, the support is connected to the cross roller guide on the same plane, and the stepper motor drives the objective lens support to move and switch the two objective lenses to the slide scanning position.

[0003] In the prior art, since the two objective lens fixed supports are on the same plane support, when one objective lens is adjusted to the standard image quality focal length during scanning, the other objective lens does not reach the height difference, which is prone to interference with the glass slide, affecting the adjustment of the objective lens focal length, resulting in the final scanning quality failing to meet the ideal standard. Utility Model Content

[0004] The purpose of the utility model is to provide a slide scanner objective lens structure to solve the above technical problems;

[0005] A slide scanner objective lens structure, comprising:

[0006] A support, wherein a guide mechanism having a stepped track is provided at the bottom of the support;

[0007] An objective lens fixing seat, which is arranged at the bottom of the support and is slidably connected to the guide mechanism, and a plurality of objective lenses are arranged on the objective lens fixing seat;

[0008] The driving mechanism is arranged on the support and connected to the objective lens fixing seat, and can controllably drive the objective lens fixing seat to move along the arrangement direction of the objective lens so as to switch the objective lens to a scanning position.

[0009] Preferably, a working plate is provided at the bottom of the support, and the guide mechanism is connected to the bottom end of the working plate. The guide mechanism includes a first guide block and a second guide block respectively arranged on both sides of the bottom end of the working plate, and the first guide block is provided with a first guide groove on one side of the first side of the bottom protrusion of the working plate, and the first guide groove and the first side of the protrusion constitute a first guide track; the second guide block is provided with a second guide groove on one side of the second side of the bottom protrusion of the working plate, and the second guide groove and the second side of the protrusion constitute a second guide track.

[0010] Preferably, the first guide track and the second guide track are in a stepped shape, including a plurality of objective lens steps with set horizontal heights, and adjacent objective lens steps are connected by a slope.

[0011] Preferably, the objective lens fixing seat includes N objective lens plates, each of which has an objective lens at the bottom, and each of which has an objective lens fixing member and an objective lens adjusting member below, and the objective lens adjusting member is slidably disposed in the guide mechanism; wherein N is a positive integer greater than or equal to.

[0012] Preferably, adjacent objective lens plates are connected via hinge plates, and hinge shafts are provided on the hinge plates.

[0013] Preferably, a bearing roller is provided on the objective lens adjusting member.

[0014] Preferably, the objective lens fixing seat is further provided with:

[0015] A sensor positioning plate, arranged on the objective lens plate;

[0016] The photoelectric sensor is located on the sensor positioning plate.

[0017] Preferably, the driving mechanism comprises:

[0018] A motor support, disposed on one side of the bottom of the support;

[0019] A screw motor connected to the motor support;

[0020] A connecting rod, a first end of which is connected to the motor support, and a second end of which is connected to a bearing seat;

[0021] A screw rod connector is passed through the connecting rod, and the screw rod connector is connected to the objective lens fixing seat to drive the objective lens fixing seat to move along the connecting rod.

[0022] Preferably, the working plate is provided with glass ball screws for auxiliary positioning.

[0023] Preferably, a grating reading head is provided on the side of the support close to the second guide block.

[0024] The beneficial effect of the utility model is that: due to the adoption of the above technical solution, the utility model separates and connects a plurality of objective lens supports into one body, and the step-shaped setting of the guide mechanism can ensure that there is no interference from the glass slide after switching, thereby ensuring the scanning quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 Schematic diagram of the objective lens structure of a slide scanner in an embodiment of the present invention;

[0026] Figure 2 A schematic diagram of the structure of a driving mechanism in an embodiment of the present invention;

[0027] Figure 3 Schematic diagram of the structure of the objective lens fixing seat in the embodiment of the present invention;

[0028] Figure 4 It is a structural schematic diagram of a support in an embodiment of the present invention;

[0029] Figure 5 This is a schematic diagram of the bottom structure of the working board in an embodiment of the present invention;

[0030] Figure 6 is a schematic structural diagram of a second guide block in an embodiment of the present invention;

[0031] Figure 7 Schematic diagram of the working position of the first objective lens in an embodiment of the present invention;

[0032] Figure 8 Schematic diagram of the state of the objective lens switching to the intermediate position in an embodiment of the present invention;

[0033] Fig. 9 Schematic diagram of the working position of the second objective lens in an embodiment of the present invention.

[0034] In the accompanying drawings: 1. support; 2. working plate; 3. guiding mechanism; 31. first guiding block; 31a. first side of bottom protrusion; 32. second guiding block; 32a. second side of bottom protrusion; 33. first guiding track; 34. second guiding track; 4. objective lens fixing seat; 41. first objective lens seat; 411. first fixing member; 412. first objective lens adjusting member; 42. second objective lens seat; 421. second fixing member; 422. second objective lens adjusting member; 43. sensor positioning plate; 431. photoelectric sensor; 44. hinge plate; 45. hinge shaft; 46. bearing roller; 5. driving mechanism; 51. motor support; 52. lead screw motor; 53. bearing seat; 54. connecting rod; 55. lead screw connecting member; 6. first objective lens; 7. second objective lens; 8. glass bead screw; 9. grating reading head. DETAILED DESCRIPTION

[0035] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0036] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

[0037] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0038] A slide scanner objective lens structure, such as Figures 1 to 9 As shown, including,

[0039] A support 1, the bottom of which is provided with a guide mechanism 3 having a stepped track;

[0040] The objective lens fixing seat 4 is arranged at the bottom of the support 1 and is slidably connected to the guide mechanism 3. A plurality of objective lenses are arranged on the objective lens fixing seat 4.

[0041] The driving mechanism 5 is disposed on the support 1 and connected to the objective lens fixing seat 4, and can controllably drive the objective lens fixing seat 4 to move along the arrangement direction of the objective lens so as to switch the objective lens to a scanning position.

[0042] In a preferred embodiment, a working plate 2 is provided at the bottom of the support 1, and a guide mechanism 3 is connected to the bottom end of the working plate 2. The guide mechanism 3 includes a first guide block 31 and a second guide block 32 respectively arranged on both sides of the bottom end of the working plate. The first guide block 31 is provided with a first guide groove on one side of the first side 31a of the bottom protrusion of the working plate 2, and the first guide groove and the first side of the protrusion constitute a first guide track 33; the second guide block 32 is provided with a second guide groove on one side of the second side 32a of the bottom protrusion of the working plate 2, and the second guide groove and the second side of the protrusion constitute a second guide track 34.

[0043] In a preferred embodiment, the first guide track 33 and the second guide track 34 are in a stepped shape, including a plurality of objective lens steps with set horizontal heights, and adjacent objective lens steps are connected by slopes.

[0044] Specifically, the number of objective lens steps of the present invention is consistent with the number of objective lenses and objective lens plates. N in the present invention is taken as 2 as an example. Of course, in other embodiments, the number of N can be more. The objective lens steps have different horizontal heights. The horizontal heights of the objective lens steps are arranged in a step-like manner. The specific horizontal heights are determined according to the length of the lens barrel of the objective lens, so that when one of the objective lenses is switched to the scanning position, the other objective lens plates fall into the corresponding objective lens steps, and the objective lenses on the remaining objective lens plates have a certain height difference relative to the objective lens at the scanning position, that is, the lowest end of the objective lens at the scanning position is lower than the lowest end of the remaining objective lenses. Taking two objective lenses as an example, it is ensured that the two objective lenses have a height difference after switching, so as to avoid interference between the other objective lens and the glass slide when one is scanning, thereby ensuring the scanning quality. Avoid interference between the other objective lens and the glass slide when one is scanning.

[0045] In a preferred embodiment, the objective lens fixing seat 4 includes N objective lens plates, each of which has an objective lens at the bottom, and each objective lens plate is provided with an objective lens fixing member and an objective lens adjusting member under it, and the objective lens adjusting member can be slidably arranged in the guide mechanism 3.

[0046] Specifically, in the present invention, N=2, the objective lens fixing seat 4 includes:

[0047] A first objective lens plate 41;

[0048] A first fixing member 411 is located below the first objective lens plate 41;

[0049] The first objective lens adjusting members 412 are located on both sides of the first objective lens plate 41 .

[0050] A second objective lens plate 42;

[0051] The second fixing member 421 is located below the second objective lens plate 42;

[0052] The second objective lens adjusting member 422 is located at one side of the second objective lens plate 42 .

[0053] A first objective lens 6 is fixed below the first objective lens plate 41 , and a second objective lens 7 is fixed below the second objective lens plate 42 .

[0054] The adjustment process of the two objective lenses in the utility model is as follows: Figures 7 to 9 As shown, it includes a first objective lens working position, an objective lens switching intermediate position state and a second objective lens working position. In the first objective lens working position, the first objective lens 6 is located at the lower step of the track, and the second objective lens 7 is located at the upper step of the track, so that the second objective lens 7 has a height difference of 0.7 mm relative to the first objective lens 6; in the objective lens switching intermediate position, the driving mechanism 5 drives the objective lens fixing seat 4 to move, and the hinge plate 44 and the hinge shaft 45 adapt to the deformation of the objective lens fixing seat 4 on the slope between the two steps to ensure the connection between the first objective lens plate 41 and the second objective lens plate 42. In the second objective lens working position, the first objective lens 6 and the second objective lens 7 are both at the lower step. Since the barrel length of the second objective lens 7 is greater than the barrel length of the first objective lens 6, the first objective lens 6 also has a height difference of 0.7 mm relative to the second objective lens 7. Therefore, no matter it is the first objective lens working position or the second objective lens working position, the remaining objective lenses always have a height difference of 0.7 mm relative to the objective lens located at the scanning position, ensuring that there is no interference with the glass slide during scanning.

[0055] In a preferred embodiment, adjacent objective lens plates are connected via a hinge plate 44 , and a hinge shaft 45 is provided on the hinge plate 44 .

[0056] In a preferred embodiment, a bearing roller 46 is provided on the objective lens adjusting member.

[0057] Specifically, the utility model provides a structure for separating a plurality of objective lens plates, a precision bearing roller 46 is installed on the objective lens fixing seat 4, the objective lens plates are connected into one body by hinges, and a stepping motor is connected to one of the objective lens plates to realize switching of different objective lenses to scanning positions;

[0058] Further specifically, the utility model is provided with a bearing roller 46 on the objective lens adjustment member to ensure smooth sliding of the objective lens;

[0059] In a preferred embodiment, the objective lens fixing seat 4 is further provided with:

[0060] A sensor positioning plate 43 is provided on the objective lens plate;

[0061] The photoelectric sensor 431 is located on the sensor positioning plate 43 .

[0062] Specifically, the photoelectric sensor 431 is used for positioning.

[0063] In a preferred embodiment, the driving mechanism 5 includes:

[0064] The motor support 51 is provided on one side of the bottom of the support 1;

[0065] A screw motor 52 connected to a motor support 51;

[0066] A connecting rod 54, wherein a first end of the connecting rod 54 is connected to the motor support 51, and a second end of the connecting rod 54 is connected to a bearing seat 53;

[0067] The screw connecting piece 55 is passed through the connecting rod 54 , and the screw connecting piece 55 is connected to the objective lens fixing seat 4 to drive the objective lens fixing seat to move along the connecting rod 54 .

[0068] Specifically, the objective lens is moved by the objective lens adjusting member sliding along a stepped track driven by the lead screw motor 52 .

[0069] In a preferred embodiment, the working plate 2 is provided with glass ball screws 8 for auxiliary positioning.

[0070] Specifically, the working plate 2 is assisted in positioning by two ball screws 8 to ensure that the objective lens works stably without shaking;

[0071] In a preferred embodiment, a grating reading head 9 is provided on the side of the support 1 close to the second guide block 32.

[0072] The above description is only a preferred embodiment of the present invention, and does not limit the implementation mode and protection scope of the present invention. For those skilled in the art, it should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A slide scanner objective lens structure, characterized in that: include, A support (1), wherein a guide mechanism (3) having a stepped track is provided at the bottom of the support (1); An objective lens fixing seat (4) is arranged at the bottom of the support (1) and is slidably connected to the guide mechanism (3), and a plurality of objective lenses are arranged on the objective lens fixing seat (4); The driving mechanism (5) is arranged on the support (1) and connected to the objective lens fixing seat (4), and can controllably drive the objective lens fixing seat (4) to move along the arrangement direction of the objective lens so as to switch the objective lens to a scanning position.

2. The objective lens structure of the slide scanner according to claim 1, characterized in that: A working plate (2) is provided at the bottom of the support (1); the guide mechanism (3) is connected to the bottom end of the working plate (2); the guide mechanism (3) comprises a first guide block (31) and a second guide block (32) respectively provided on both sides of the bottom end of the working plate; the first guide block (31) is provided with a first guide groove on one side of a first side of a bottom protrusion of the working plate (2); the first guide groove and the first side of the protrusion constitute a first guide track (33); the second guide block (32) is provided with a second guide groove on one side of a second side of a bottom protrusion of the working plate (2); the second guide groove and the second side of the protrusion constitute a second guide track (34).

3. The objective lens structure of the slide scanner according to claim 2, characterized in that: The first guide track (33) and the second guide track (34) are in a stepped shape, comprising a plurality of objective lens steps with a set horizontal height, and adjacent objective lens steps are connected by a slope.

4. The objective lens structure of the slide scanner according to claim 1, characterized in that: The objective lens fixing seat (4) comprises N objective lens plates, each of which is provided with an objective lens at the bottom, and each of which is provided with an objective lens fixing member and an objective lens adjusting member below, wherein the objective lens adjusting member is slidably arranged in the guide mechanism (3); wherein N is a positive integer greater than or equal to 2.

5. The objective lens structure of the slide scanner according to claim 4, characterized in that: Adjacent objective lens plates are connected via hinge plates (44), and hinge shafts (45) are provided on the hinge plates (44).

6. The objective lens structure of the slide scanner according to claim 4, characterized in that: The objective lens adjusting member is provided with a bearing roller (46).

7. The objective lens structure of the slide scanner according to claim 1, characterized in that: The objective lens fixing seat (4) is also provided with: A sensor positioning plate (43) is arranged on the objective lens plate; The photoelectric sensor (431) is located on the sensor positioning plate (43).

8. The objective lens structure of the slide scanner according to claim 1, characterized in that: The driving mechanism (5) comprises: A motor support (51) is arranged on one side of the bottom of the support (1); A screw motor (52) connected to the motor support (51); A connecting rod (54), wherein a first end of the connecting rod (54) is connected to the motor support (51), and a second end of the connecting rod (54) is connected to a bearing seat (53); A screw rod connector (55) is inserted through the connecting rod (54), and the screw rod connector (55) is connected to the objective lens fixing seat (4) to drive the objective lens fixing seat to move along the connecting rod (54).

9. The objective lens structure of the slide scanner according to claim 2, characterized in that: The working plate (2) is provided with a glass ball screw (8) for auxiliary positioning.

10. The objective lens structure of the slide scanner according to claim 2, characterized in that: A grating reading head (9) is provided on one side of the support (1) close to the second guide block (32).

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