Active marking lens for microscope

Abstract

The utility model discloses an active marking lens for a microscope, which comprises a base mounted on a microscope eyepiece and coaxial with the microscope eyepiece, and a lens coaxial with the base is arranged on the base; the lens comprises a turntable, the middle of the turntable and the turntable are coaxially connected with a transparent sheet, a marking rod or an adjustable marking rod is arranged below the turntable, the other end of the marking rod or the adjustable marking rod extends to the outer side of the turntable, and a lens magnetic sheet fixed with the base through magnetic attraction is arranged below the marking rod or the adjustable marking rod. According to the utility model, the problems in the prior art that a pointer at a fixed position is additionally arranged in the eyepiece, the visual field content is moved for indication, but the visual field is narrow and the to-be-observed structure is easy to move out of the visual field are solved. The utility model also discloses a method for marking by using the active marking lens.

Description

Technical Field

[0001] The utility model belongs to the technical field of optical microscopes and relates to an active marking lens for a microscope. Background Art

[0002] Optical microscopes are often used to observe microscopic substances such as insects, microorganisms, animal and plant cells, and precision parts, and to explore and characterize various fine structures. Due to the limitation of magnification, or the need to observe and describe the adjacent relationship between the observed structure and surrounding structures, and the frequent unclear boundaries between structures or cells, in actual scientific research and teaching, it is necessary to add one or more directional marks within the field of view, or mark a specific field of view.

[0003] The existing technology uses a fixed-position pointer added to the eyepiece and a moving field of view for indication. However, the field of view is narrow, and even a slight movement can easily move the structure to be observed out of the field of view, making it even more difficult to accurately move it to the tip of the pointer. Alternatively, a single pointer is used for marking, but the marking capability is limited, and it can only mark a single point and cannot mark a specific range. Alternatively, ink is dripped and dots are engraved on the object to be measured, which may obstruct or even damage the structure to be measured.

[0004] Therefore, there is an urgent need for a marking lens that can achieve full-field active, multiple markings and adjustable range without moving or touching the object to be measured. Utility Model Content

[0005] The purpose of the utility model is to provide an active marking lens for a microscope, which solves the problem in the prior art of adding a fixed-position pointer in the eyepiece and moving the field of view for indication, but the field of view is narrow and the structure to be observed is easily moved out of the field of view.

[0006] The technical solution adopted by the utility model is that the active marking lens for a microscope comprises a base mounted on and coaxially arranged with the microscope eyepiece, and a lens is coaxially arranged on the base;

[0007] The lens includes a turntable, a transparent sheet is coaxially connected to the middle of the turntable, a marking rod or an adjustable marking rod is arranged below the turntable, the other end of the marking rod or the adjustable marking rod extends to the outside of the turntable, and a lens magnetic sheet is arranged below the marking rod or the adjustable marking rod and is fixed to the base by magnetic attraction.

[0008] The first technical solution of the present utility model is also characterized in that:

[0009] The turntable is a circular disc with a circular notch in the middle as the turntable opening. A circular transparent sheet groove is provided on the upper surface of the turntable at the outer edge of the turntable opening. The transparent sheet is located in the transparent sheet groove. The turntable is also integrally provided with a handle connected to the turntable. A marking rod groove is provided at the bottom of the turntable on the opposite side of the handle. The marking rod groove extends from the turntable opening to the outer edge of the turntable. The long axis of the handle and the long axis of the marking rod groove are on the same diameter line of the turntable. The middle position of the marking rod or the adjustable marking rod is stuck in the marking rod groove, and the two ends are respectively located below the transparent sheet and extending out of the turntable. The outer edge of the turntable is provided with anti-slip grooves except for the positions corresponding to the handle and the marking rod groove.

[0010] The marking rod includes a marking rod head, a marking rod body and a marking rod handle which are connected in sequence. The marking rod head is located below the transparent sheet, the marking rod body passes through the marking rod slot, the marking rod handle extends outside the turntable, and the long axis of the marking rod is collinear with the diameter of the turntable.

[0011] The adjustable marking rod comprises an adjustable marking rod head, an adjustable marking rod body and an adjustable marking rod handle which are connected in sequence as one. The adjustable marking rod head is located below the transparent sheet, the adjustable marking rod body passes through the marking rod slot, the adjustable marking rod handle extends to the outside of the turntable, the long axis of the adjustable marking rod is collinear with the diameter of the turntable, and two telescopic wire holes are arranged in parallel in the adjustable marking rod head, and the telescopic wire tube also comprises a cylindrical telescopic wire tube, the telescopic wire tube is parallel to the long axis of the adjustable marking rod, and the telescopic wire tube extends from any telescopic wire hole in the adjustable marking rod head through the inside of the adjustable marking rod body to the outside of the adjustable marking rod handle, and one end of the telescopic wire is fixed in the telescopic wire hole where no corresponding telescopic wire tube is provided, and the other end of the telescopic wire passes through the telescopic wire hole fixed therein, passes through one end of the adjustable marking rod head away from the adjustable marking rod handle, and then passes through another telescopic wire hole and the corresponding telescopic wire tube and extends out of the adjustable marking rod handle, and the telescopic wire is wound in a circular ring at the end of the adjustable marking rod head away from the adjustable marking rod handle.

[0012] The transparent sheet is a circular transparent sheet and is located in the transparent sheet groove.

[0013] The lens magnetic piece is a circular magnetic piece, and a circular lens magnetic piece opening is opened concentrically with the center of the lens magnetic piece. The lens is fixed to the base by magnetic attraction through the lens magnetic piece.

[0014] The base includes a collar and a base magnetic sheet arranged on the collar, the lens and the base are fixed by magnetic attraction between the lens magnetic sheet and the base magnetic sheet, and the collar is sleeved on the eyepiece of the microscope;

[0015] The ring is a cylindrical ring structure, the inner ring opening of the ring is the ring opening, the lower surface of the ring is located at the outer edge of the ring opening and is provided with an annular eyepiece groove, the eyepiece groove is sleeved on the eyepiece of the microscope, and a circular base magnetic plate opening is opened concentrically with the base magnetic plate.

[0016] The height of the transparent sheet is consistent with the height of the transparent sheet slot, the diameter of the transparent sheet slot is larger than the diameter of the transparent sheet, the diameter of the turntable opening is smaller than the diameter of the transparent sheet, the diameter of the lens magnetic sheet is smaller than the diameter of the turntable, the diameter of the lens magnetic sheet opening is larger than the diameter of the turntable opening, the diameter of the eyepiece slot is larger than the diameter of the microscope eyepiece, the diameter of the base magnetic sheet is smaller than the diameter of the base, the diameter of the base magnetic sheet opening is larger than the diameter of the collar opening, the diameter of the turntable is consistent with the diameter of the base, and the diameters of the turntable opening and the collar opening are consistent with the diameter of the microscope eyepiece lens;

[0017] The width of the marker rod or the width of the adjustable marker rod is smaller than the width of the marker rod groove, the height of the marker rod or the height of the adjustable marker rod is smaller than the height of the marker rod groove, and the length of the marker rod or the length of the adjustable marker rod is greater than the sum of the length of the marker rod groove and the radius of the microscope eyepiece lens, so that the marker rod or the adjustable marker rod can slide in the marker rod groove, so that the head of the marker rod or the head of the adjustable marker rod can pass through the center of the microscope eyepiece to indicate any point or area in the field of view of the microscope eyepiece;

[0018] The width of the marker rod head or the width of the adjustable marker rod head is greater than the width of the marker rod slot, and the width of the marker rod handle or the width of the adjustable marker rod handle is greater than the width of the marker rod slot, so that the marker rod or the adjustable marker rod will not fall out of the marker rod slot;

[0019] The diameter of the telescopic wire tube is smaller than the width and height of the adjustable marking rod, the inner diameter of the telescopic wire tube is larger than the diameter of the telescopic wire, the length of the telescopic wire is larger than the length of the adjustable marking rod, and the diameter of the telescopic wire is smaller than the diameter of the telescopic wire hole.

[0020] The turntable is fixed to the transparent sheet by being clipped or glued to the transparent sheet through the transparent sheet slot, the adjustable marking rod is fixed to one end of the telescopic wire by being plugged or glued to the telescopic wire hole, the lens magnetic sheet is glued and fixed to the part of the bottom of the turntable except the marking rod slot, the marking rod or the adjustable marking rod is confined in the marking rod slot by gluing between the lens magnetic sheet and the turntable, the base magnetic sheet is glued and fixed to the top of the collar, the lens and the base are fixed by magnetic attraction between the lens magnetic sheet and the base magnetic sheet, so that the lens and the base can rotate coaxially, and the lenses are fixed to each other by magnetic attraction between their respective lens magnetic sheets, so that the lenses can rotate coaxially.

[0021] The beneficial effects of the utility model are:

[0022] (1) The present invention uses a lens magnet and a base magnet to magnetically connect the base and the lens, which allows the lens to rotate coaxially relative to the base at will. At the same time, the marking rod can be pulled outward and pushed inward relative to the turntable, thereby achieving active marking of any point in the entire field of view without moving the object to be observed.

[0023] (2) The marking rod head of the utility model can be designed into any shape such as an arrow, a cross, a ring, etc. to meet different marking requirements; by pulling outward and pushing inward the telescopic wire inside the adjustable marking rod, the diameter of the marking ring can be adjusted, that is, the marking range of the microscope field of view.

[0024] (3) The lenses can also be connected by magnetic attraction, achieving multiple markings in the same field of view. The magnetic force of the magnetic sheet not only ensures the stability of the marking point in the field of view, but also facilitates installation and removal. The smooth surface of the magnetic sheet and the turntable facilitates the rotation of the lens.

[0025] (4) The active marking lens is easy to disassemble and assemble, simple and practical to operate, low in cost, and easy to implement in mass production.

[0026] (5) Suitable for various optical microscopes or telescopes equipped with eyepiece lenses, such as biological microscopes, stereo microscopes, metallographic microscopes, fluorescence microscopes, inverted microscopes, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 This is a schematic structural diagram of an active marking lens for a microscope according to the present invention;

[0028] Figure 2 This is a schematic structural diagram of a lens in an active marking lens for a microscope according to the present invention;

[0029] Figure 3 This is an exploded view of a lens in the active marking lens for a microscope of the present invention;

[0030] Figure 4 This is a schematic structural diagram of a ring-shaped marking rod in an active marking lens for a microscope according to the present invention;

[0031] Figure 5 This is a schematic structural diagram of the base of the active marking lens for a microscope of the present invention;

[0032] Figure 6 This is a schematic structural diagram of a microscope eyepiece in an active marking lens for a microscope according to the present invention;

[0033] Figure 7 This is a schematic diagram of the working principle of Example 1 of the utility model;

[0034] Figure 8 yes Figure 7 AA section view;

[0035] Figure 9 The utility model is a structural schematic diagram of an adjustable marking rod in an active marking lens for a microscope.

[0036] In the figure: 1-lens, 11-turntable, 111-transparent sheet slot, 112-anti-slip groove, 113-handle, 114-turntable mouth, 115-marking rod slot, 12-marking rod, 121-marking rod head, 122-marking rod body, 123-marking rod handle, 13-transparent sheet, 14-lens magnetic sheet, 141-lens magnetic sheet mouth, 15-adjustable marking rod, 151-adjustable marking rod head, 1511-telescopic wire hole, 152-adjustable marking rod body, 153-adjustable marking rod handle, 154-telescopic wire tube, 155-telescopic wire, 2-base, 21-ring, 211-ring mouth, 212-eyepiece slot, 22-base magnetic sheet, 221-base magnetic sheet mouth, 3-microscope eyepiece, 31-microscope eyepiece lens. DETAILED DESCRIPTION

[0037] The present invention will be described in detail below with reference to the accompanying drawings and specific implementation methods.

[0038] Example 1

[0039] The utility model is used for an active marking lens of a microscope, and its structure is as follows Figure 1-3 As shown, it includes a base 2 mounted on and coaxially arranged with the microscope eyepiece 3, and a lens 1 is coaxially arranged on the base 2;

[0040] The lens 1 includes a turntable 11, a transparent sheet 13 is coaxially connected to the middle of the turntable 11, a marking rod 12 is provided below the turntable 11, and the other end of the marking rod 12 extends to the outside of the turntable 11, and a lens magnetic sheet 14 is provided below the marking rod 12 and is fixed to the base 2 by magnetic attraction.

[0041] The turntable 11 is a circular disc with a circular notch in the middle as a turntable opening 114. A circular transparent sheet groove 111 is provided on the upper surface of the turntable 11 at the outer edge of the turntable opening 114, and the transparent sheet 13 is located in the transparent sheet groove 111. The turntable 11 is also integrally provided with a handle 113 connected to the turntable 11. A marking rod groove 115 is provided at the bottom of the turntable 11 on the opposite side of the handle 113. The marking rod groove 115 extends from the turntable opening 114 to the outer edge of the turntable 11. The long axis of the handle 113 and the long axis of the marking rod groove 115 are on the same diameter line of the turntable 11. The middle position of the marking rod 12 is stuck in the marking rod groove 115, and the two ends are respectively located below the transparent sheet 13 and extending out of the turntable 11. The outer edge of the turntable 11 is provided with anti-slip grooves 112 except for the positions corresponding to the handle 113 and the marking rod groove 115.

[0042] The marking rod 12 includes a marking rod head 121, a marking rod body 122 and a marking rod handle 123 which are connected in sequence as one body. The marking rod head 121 is located below the transparent sheet 13, the marking rod body 122 passes through the marking rod slot 115, and the marking rod handle 123 extends to the outside of the turntable 11. The long axis of the marking rod 12 is collinear with the diameter of the turntable 11.

[0043] The transparent sheet 13 is a circular transparent sheet and is located in the transparent sheet slot 111 .

[0044] The lens magnetic piece 14 is a circular magnetic piece. A circular lens magnetic piece opening 141 is concentrically provided at the center of the lens magnetic piece 14 . The lens is fixed to the base 2 by magnetic attraction through the lens magnetic piece 14 .

[0045] like Figure 5 As shown, the base 2 includes a collar 21 and a base magnetic sheet 22 provided on the collar 21. The lens 1 and the base 2 are magnetically fixed by the lens magnetic sheet 14 and the base magnetic sheet 22. The collar 21 is placed on the microscope eyepiece 3.

[0046] The ring 21 is a cylindrical ring structure, the inner ring opening of the ring 21 is the ring opening 211, and the lower surface of the ring 21 is located at the outer edge of the ring opening 211. A ring-shaped eyepiece groove 212 is provided. The eyepiece groove 212 is mounted on the microscope eyepiece 3, and a circular base magnetic plate opening 221 is opened concentrically with the base magnetic plate 22.

[0047] The height of the transparent sheet 13 is consistent with the height of the transparent sheet groove 111. The diameter of the transparent sheet groove 111 is larger than the diameter of the transparent sheet 13. The diameter of the turntable opening 114 is smaller than the diameter of the transparent sheet 13. The diameter of the lens magnetic sheet 14 is smaller than the diameter of the turntable 11. The diameter of the lens magnetic sheet opening 141 is larger than the diameter of the turntable opening 114. The diameter of the eyepiece groove 212 is larger than the diameter of the microscope eyepiece 3. The diameter of the base magnetic sheet 22 is smaller than the diameter of the base 2. The diameter of the base magnetic sheet opening 221 is larger than the diameter of the collar opening 211. The diameter of the turntable 11 is consistent with the diameter of the base 2. Figure 6 As shown, the diameter of the turntable opening 114 and the diameter of the collar opening 211 are consistent with the diameter of the microscope eyepiece lens 31;

[0048] The width of the marking rod body 122 is smaller than the width of the marking rod groove 115, the height of the marking rod body 122 is smaller than the height of the marking rod groove 115, and the length of the marking rod body 122 is greater than the sum of the length of the marking rod groove 115 and the radius of the microscope eyepiece lens 31, so that the marking rod 12 can slide in the marking rod groove 115, so that the marking rod head 121 can pass through the center of the microscope eyepiece 3 to indicate any point or area in the field of view of the microscope eyepiece 3;

[0049] The width of the marker rod head 121 is greater than the width of the marker rod slot 115 , and the width of the marker rod handle 123 is greater than the width of the marker rod slot 115 , so that the marker rod 12 will not fall out of the marker rod slot 115 ;

[0050] The turntable 11 is fixed to the transparent sheet 13 by being snapped or glued together through the transparent sheet groove 111. The lens magnetic sheet 14 is glued and fixed to the bottom part of the turntable 11 except the marking rod groove 115. The marking rod 12 is confined in the marking rod groove 115 by the glue connection between the lens magnetic sheet 14 and the turntable 11. The base magnetic sheet 22 is glued and fixed to the top of the ring 21. The lens 1 and the base 2 are magnetically fixed by the lens magnetic sheet 14 and the base magnetic sheet 22, so that the lens 1 and the base 2 can rotate coaxially. The lenses 1 are magnetically fixed to each other through their respective lens magnetic sheets 14, so that the lenses 1 can rotate coaxially.

[0051] The turntable 11 , the turntable opening 114 , the transparent sheet 13 , the lens magnetic sheet 14 , the lens magnetic sheet opening 141 , the base 2 , the collar 21 , the collar opening 211 , the base magnetic sheet 22 , and the base magnetic sheet opening 221 are coaxially arranged.

[0052] The working principle of this embodiment is as follows: before use, pinch the outer side of the base 2 with your hand, put the eyepiece groove 212 onto the microscope eyepiece 3, then pinch the anti-slip groove 112 on the outer side of the turntable 11 with your hand, and stick the lens magnetic piece 14 and the base magnetic piece 22 coaxially to complete the assembly of the lens 1 and the base 2. When in use, pinch the marking rod handle 123 with your hand, pull the marking rod 12 as far as possible, and make the marking rod head 121 away from the center of the microscope eyepiece 3. When the structure to be marked appears in the field of view of the microscope, pinch the handle 113 on the outer side of the turntable 11 with your hand to rotate the lens 1. After rotating it to a suitable angle so that the structure to be marked is on the extension line of the marking rod 12, pinch the marking rod handle 123 with your hand and push the marking rod 12 inward to complete the marking and indication of the structure to be observed, and then you can start teaching and explaining.

[0053] After use, pinch the anti-slip groove 112 on the outside of the turntable 11 with one hand, and pinch the outside of the base 2 with the other hand, and pull the lens 1 and the base 2 or other lenses 1 apart with a little force to overcome the magnetic force between them, and complete the removal of the lens 1. Finally, pinch the outside of the base 2 with your hand and lift it up to remove the base 2 from the microscope eyepiece 3.

[0054] Example 2

[0055] On the basis of Example 1, Figure 3 and Figure 4 As shown, the marking rod head 121 is in an indicating shape such as an arrow, a cross or a ring.

[0056] Example 3

[0057] On the basis of embodiment 1, the transparent sheet 13 can be made of glass or acrylic material, which has no adverse effect on the field of view in the microscope eyepiece 3 .

[0058] Example 4

[0059] Based on the embodiment 1, there are one or more lenses 1, and the magnetic force of the lens magnetic sheet 14 can make the lenses 1 stacked, thereby indicating multiple points or areas in the field of view at the same time.

[0060] Example 5

[0061] Active marking lenses for microscopes, such as Figure 1-3 As shown, it includes a base 2 mounted on and coaxially arranged with the microscope eyepiece 3, and a lens 1 is coaxially arranged on the base 2;

[0062] The lens 1 includes a turntable 11, a transparent sheet 13 is coaxially connected to the middle of the turntable 11, an adjustable marking rod 15 is provided below the turntable 11, and the other end of the adjustable marking rod 15 extends to the outside of the turntable 11, and a lens magnetic sheet 14 is provided below the adjustable marking rod 15 and is fixed to the base 2 by magnetic attraction.

[0063] The turntable 11 is a circular disc with a circular notch in the middle as a turntable opening 114. A circular transparent sheet groove 111 is provided on the upper surface of the turntable 11 at the outer edge of the turntable opening 114, and the transparent sheet 13 is located in the transparent sheet groove 111. The turntable 11 is also integrally provided with a handle 113 connected to the turntable 11. A marking rod groove 115 is provided at the bottom of the turntable 11 on the opposite side of the handle 113. The marking rod groove 115 extends from the turntable opening 114 to the outer edge of the turntable 11. The long axis of the handle 113 and the long axis of the marking rod groove 115 are on the same diameter line of the turntable 11. The middle position of the adjustable marking rod 15 is stuck in the marking rod groove 115, and the two ends are respectively located below the transparent sheet 13 and extending out of the turntable 11. The outer edge of the turntable 11 is provided with anti-slip grooves 112 except for the positions corresponding to the handle 113 and the marking rod groove 115.

[0064] like Figure 9As shown, the adjustable marking rod 15 includes an adjustable marking rod head 151, an adjustable marking rod body 152 and an adjustable marking rod handle 153 which are connected in sequence as one body. The adjustable marking rod head 151 is located below the transparent sheet 13, the adjustable marking rod body 152 passes through the marking rod slot 115, and the adjustable marking rod handle 153 extends to the outside of the turntable 11. The long axis of the adjustable marking rod 15 is collinear with the diameter of the turntable 11. Two telescopic wire holes 1511 are arranged in parallel in the adjustable marking rod head 151, and the adjustable marking rod head 151 also includes a cylindrical telescopic wire tube 154. The telescopic wire tube 154 is parallel to the long axis of the adjustable marking rod 15, and the telescopic wire tube 154 is extended from any one of the telescopic wire holes 1511 in the adjustable marking rod head 151. The telescopic wire 155 extends from the inside of the adjustable marking rod body 152 to the outside of the adjustable marking rod handle 153. One end of the telescopic wire 155 is fixed in the telescopic wire hole 1511 where no corresponding telescopic wire tube 154 is provided. The other end of the telescopic wire 155 passes through the telescopic wire hole 1511 to which it is fixed, and then passes through the end of the adjustable marking rod head 151 away from the adjustable marking rod handle 153, and then passes through another telescopic wire hole 1511 and the corresponding telescopic wire tube 154 to extend out of the adjustable marking rod handle 153. The telescopic wire 155 is wrapped in a circular ring at the end of the adjustable marking rod head 151 away from the adjustable marking rod handle 153, and the size of the circular ring can be adjusted by the extension and contraction of the telescopic wire 155 extending from the adjustable marking rod handle 153.

[0065] The transparent sheet 13 is a circular transparent sheet and is located in the transparent sheet slot 111 .

[0066] The lens magnetic piece 14 is a circular magnetic piece. A circular lens magnetic piece opening 141 is concentrically provided at the center of the lens magnetic piece 14 . The lens magnetic piece 14 is magnetically fixed to the base 2 via the lens magnetic piece opening 141 .

[0067] like Figure 5 As shown, the base 2 includes a collar 21 and a base magnetic sheet 22 provided on the collar 21. The lens 1 and the base 2 are magnetically fixed by the lens magnetic sheet 14 and the base magnetic sheet 22. The collar 21 is placed on the microscope eyepiece 3.

[0068] The ring 21 is a cylindrical ring structure, the inner ring opening of the ring 21 is the ring opening 211, and the lower surface of the ring 21 is located at the outer edge of the ring opening 211. A ring-shaped eyepiece groove 212 is provided. The eyepiece groove 212 is mounted on the microscope eyepiece 3, and a circular base magnetic plate opening 221 is opened concentrically with the base magnetic plate 22.

[0069] The height of the transparent sheet 13 is consistent with the height of the transparent sheet groove 111. The diameter of the transparent sheet groove 111 is larger than the diameter of the transparent sheet 13. The diameter of the turntable opening 114 is smaller than the diameter of the transparent sheet 13. The diameter of the lens magnetic sheet 14 is smaller than the diameter of the turntable 11. The diameter of the lens magnetic sheet opening 141 is larger than the diameter of the turntable opening 114. The diameter of the eyepiece groove 212 is larger than the diameter of the microscope eyepiece 3. The diameter of the base magnetic sheet 22 is smaller than the diameter of the base 2. The diameter of the base magnetic sheet opening 221 is larger than the diameter of the collar opening 211. The diameter of the turntable 11 is consistent with the diameter of the base 2. The diameters of the turntable opening 114 and the collar opening 211 are consistent with the diameter of the microscope eyepiece lens 31.

[0070] The width of the adjustable marking rod 152 is smaller than the width of the marking rod slot 115 , the height of the adjustable marking rod 152 is smaller than the height of the marking rod slot 115 , and the length of the adjustable marking rod 152 is greater than the sum of the length of the marking rod slot 115 and the radius of the microscope eyepiece lens 31 , so that the adjustable marking rod 15 can slide in the marking rod slot 115 and the adjustable marking rod head 151 can pass over the center of the microscope eyepiece 3 to indicate any point or area within the field of view of the microscope eyepiece 3 ;

[0071] The width of the adjustable marking rod head 151 is greater than the width of the marking rod slot 115 , and the width of the adjustable marking rod handle 153 is greater than the width of the marking rod slot 115 , so that the adjustable marking rod 15 will not fall out of the marking rod slot 115 ;

[0072] The diameter of the telescopic wire tube 154 is smaller than the width and height of the adjustable marking rod 15 , the inner diameter of the telescopic wire tube 154 is larger than the diameter of the telescopic wire 155 , the length of the telescopic wire 155 is longer than the adjustable marking rod 15 , and the diameter of the telescopic wire 155 is smaller than the diameter of the telescopic wire hole 1511 .

[0073] The turntable 11 is fixed to the transparent sheet 13 by being snapped or glued through the transparent sheet slot 111, the adjustable marking rod 15 is fixed to one end of the telescopic wire 155 by being plugged or glued through the telescopic wire hole 1511, the lens magnetic sheet 14 is glued and fixed to the bottom part of the turntable 11 except the marking rod slot 115, the adjustable marking rod 15 is confined in the marking rod slot 115 by the glue connection between the lens magnetic sheet 14 and the turntable 11, the base magnetic sheet 22 is glued and fixed to the top of the ring 21, the lens 1 and the base 2 are magnetically fixed by the lens magnetic sheet 14 and the base magnetic sheet 22, so that the lens 1 and the base 2 can rotate coaxially, and the lenses 1 are magnetically fixed to each other by their respective lens magnetic sheets 14, so that the lenses 1 can rotate coaxially.

[0074] Turntable 11 , turntable opening 114 , transparent sheet 13 , lens magnetic sheet 14 , lens magnetic sheet opening 141 , base 2 , sleeve ring 21 , sleeve ring opening 211 , base magnetic sheet 22 , base magnetic sheet opening 221 .

[0075] The working principle of this embodiment is as follows: before use, pinch the outside of the base 2 with your hand, put the eyepiece groove 212 on the microscope eyepiece 3, then pinch the anti-slip groove 112 on the outside of the turntable 11 with your hand, and stick the lens magnetic piece 14 and the base magnetic piece 22 coaxially to complete the assembly of the lens 1 and the base 2. When using, Figure 7 and 8 As shown, pinch the adjustable marking rod handle 153 with your hand and pull the adjustable marking rod 15 as far as possible to move the adjustable marking rod head 151 away from the center of the microscope eyepiece 3. When the structure to be marked appears in the field of view of the microscope, pinch the handle 113 on the outside of the turntable 11 with your hand to rotate the lens 1. After rotating it to a suitable angle so that the structure to be marked is on the extension line of the adjustable marking rod 15, pinch the adjustable marking rod handle 153 with your hand and push the adjustable marking rod 15 inward to complete the marking and indication of the structure to be observed, and then you can start teaching and explaining.

[0076] When characterizing the range of the structure to be marked, the lens 1 equipped with the adjustable marking rod 15 is attached to the base 2. The lens 1 is rotated to the appropriate angle by pinching the handle 113 on the outside of the turntable 11. After rotating to the appropriate angle so that the structure to be marked is on the extension line of the adjustable marking rod 15, the adjustable marking rod handle 153 is pinched by hand and the adjustable marking rod 15 is pushed inward to the appropriate position so that the adjustable marking rod head 151 is close to the structure to be marked. Finally, the telescopic wire 155 on the outside of the adjustable marking rod handle 153 is pinched by hand and the telescopic wire 155 is pushed inward or pulled outward so that the telescopic wire 155 ring inside the adjustable marking rod head 151 is expanded or reduced to the appropriate size, thus completing the characterization of the range of the structure to be observed. After use, pinch the anti-slip groove 112 on the outside of the turntable 11 with one hand and the outside of the base 2 with the other hand, and slightly pull the lens 1 and the base 2 or other lens 1 apart to overcome the magnetic force between them, completing the removal of the lens 1. Finally, pinch the outside of the base 2 and lift it up to remove the base 2 from the microscope eyepiece 3.

[0077] Example 6

[0078] Based on the fifth embodiment, the stretch wire 155 can be made of elastic materials such as metal wire or plastic.

[0079] Example 7

[0080] On the basis of Example 1 and Example 5, when marking multiple structures to be observed, it is only necessary to repeat the above lens 1 assembly and active marking operations and stack multiple lenses 1.

Claims

1. An active marking lens for a microscope, characterized in that: It comprises a base (2) mounted on a microscope eyepiece (3) and coaxially arranged with the microscope eyepiece (3), wherein a lens (1) is coaxially arranged on the base (2); The lens (1) comprises a turntable (11), a transparent sheet (13) is coaxially connected to the turntable (11) in the middle of the turntable (11), a marking rod (12) or an adjustable marking rod (15) is provided below the turntable (11), the other end of the marking rod (12) or the adjustable marking rod (15) extends to the outside of the turntable (11), and a lens magnetic sheet (14) is provided below the marking rod (12) or the adjustable marking rod (15) and is fixed to the base (2) by magnetic attraction.

2. The active marking lens for a microscope according to claim 1, characterized in that: The turntable (11) is a circular disc, and a circular notch is provided in the middle of the turntable (111) as a turntable opening (114). A circular transparent sheet groove (111) is provided on the upper surface of the turntable (11) at the outer edge of the turntable opening (114). The transparent sheet (13) is located in the transparent sheet groove (111). The turntable (11) is also integrally provided with a handle (113) connected to the turntable (11). A marking rod groove (115) is provided on the bottom of the turntable (11) on the opposite side of the handle (113). The marking rod The groove (115) extends from the turntable opening (114) to the outer edge of the turntable (11), the long axis of the handle (113) and the long axis of the marking rod groove (115) are on the same diameter line of the turntable (11), the middle position of the marking rod (12) or the adjustable marking rod (15) is stuck in the marking rod groove (115), and the two ends are respectively located below the transparent sheet (13) and extending out of the turntable (11), and the outer edge of the turntable (11) is provided with anti-slip grooves (112) except for the positions corresponding to the handle (113) and the marking rod groove (115).

3. The active marking lens for a microscope according to claim 2, characterized in that: The marking rod (12) comprises a marking rod head (121), a marking rod body (122) and a marking rod handle (123) which are connected in sequence as one body. The marking rod head (121) is located below the transparent sheet (13). The marking rod body (122) passes through the marking rod slot (115). The marking rod handle (123) extends outside the turntable (11). The long axis of the marking rod (12) is collinear with the diameter of the turntable (11).

4. The active marking lens for a microscope according to claim 3, characterized in that: The adjustable marking rod (15) includes an adjustable marking rod head (151), an adjustable marking rod body (152) and an adjustable marking rod handle (153) which are connected in sequence as one body. The adjustable marking rod head (151) is located below the transparent sheet (13). The adjustable marking rod body (152) passes through the marking rod slot (115). The adjustable marking rod handle (153) extends to the outside of the turntable (11). The long axis of the adjustable marking rod (15) is collinear with the diameter of the turntable (11). Two telescopic wire holes (1511) are arranged in parallel in the adjustable marking rod head (151). The adjustable marking rod head (151) also includes a cylindrical telescopic wire tube (154). The telescopic wire tube (154) is parallel to the long axis of the adjustable marking rod (15). The telescopic wire tube (154) extends from the adjustable marking rod (15). Any telescopic wire hole (1511) in the adjusting mark rod head (151) extends through the inside of the adjustable mark rod body (152) to the outside of the adjustable mark rod handle (153); one end of the telescopic wire (155) is fixed in the telescopic wire hole (1511) where the corresponding telescopic wire tube (154) is not provided; the other end of the telescopic wire (155) passes through the telescopic wire hole (1511) where the telescopic wire is fixed, passes through the end of the adjustable mark rod head (151) away from the adjustable mark rod handle (153), passes through another telescopic wire hole (1511) and the corresponding telescopic wire tube (154), and then extends out of the adjustable mark rod handle (153); and the telescopic wire (155) is wound in a circular ring shape at the end of the adjustable mark rod head (151) away from the adjustable mark rod handle (153).

5. The active marking lens for a microscope according to claim 4, characterized in that: The transparent sheet (13) is a circular transparent sheet, and the transparent sheet (13) is located in the transparent sheet groove (111).

6. The active marking lens for a microscope according to claim 5, characterized in that: The lens magnetic sheet (14) is a circular magnetic sheet, and a circular lens magnetic sheet opening (141) is provided at the center of the lens magnetic sheet (14) and concentrically with the lens magnetic sheet (14). The lens is fixed to the base (2) by magnetic attraction through the lens magnetic sheet (14).

7. The active marking lens for a microscope according to claim 6, characterized in that: The base (2) comprises a collar (21) and a base magnetic sheet (22) arranged on the collar (21); the lens (1) and the base (2) are fixed by magnetic attraction via the lens magnetic sheet (14) and the base magnetic sheet (22); the collar (21) is mounted on the microscope eyepiece (3); The collar (21) is a cylindrical ring structure, the inner ring opening of the collar (21) is a collar opening (211), the lower surface of the collar (21) is provided with an annular eyepiece groove (212) at the outer edge of the collar opening (211), the eyepiece groove (212) is sleeved on the microscope eyepiece (3), and a circular base magnetic plate opening (221) is provided concentrically with the base magnetic plate (22).

8. The active marking lens for a microscope according to any one of claims 3 to 7, characterized in that: The height of the transparent sheet (13) is consistent with the height of the transparent sheet slot (111); the diameter of the transparent sheet slot (111) is larger than the diameter of the transparent sheet (13); the diameter of the turntable opening (114) is smaller than the diameter of the transparent sheet (13); the diameter of the lens magnetic sheet (14) is smaller than the diameter of the turntable (11); the diameter of the lens magnetic sheet opening (141) is larger than the diameter of the turntable opening (114); the diameter of the eyepiece slot (212) is larger than the diameter of the microscope eyepiece (3); the diameter of the base magnetic sheet (22) is smaller than the diameter of the base (2); the diameter of the base magnetic sheet opening (221) is larger than the diameter of the collar opening (211); the diameter of the turntable (11) is consistent with the diameter of the base (2); the diameters of the turntable opening (114) and the collar opening (211) are consistent with the diameter of the microscope eyepiece lens (31).

9. The active marking lens for a microscope according to claim 8, characterized in that: The width of the marking rod (122) or the width of the adjustable marking rod (152) is smaller than the width of the marking rod groove (115), the height of the marking rod (122) or the height of the adjustable marking rod (152) is smaller than the height of the marking rod groove (115), and the length of the marking rod (122) or the length of the adjustable marking rod (152) is larger than the sum of the length of the marking rod groove (115) and the radius of the microscope eyepiece lens (31), so that the marking rod (12) or the adjustable marking rod (15) can slide in the marking rod groove (115), so that the marking rod head (121) or the adjustable marking rod head (151) can pass through the center of the microscope eyepiece (3) to indicate any point or area in the field of view of the microscope eyepiece (3); The width of the marking rod head (121) or the width of the adjustable marking rod head (151) is greater than the width of the marking rod groove (115), and the width of the marking rod handle (123) or the width of the adjustable marking rod handle (153) is greater than the width of the marking rod groove (115), so that the marking rod (12) or the adjustable marking rod (15) will not fall out of the marking rod groove (115); The diameter of the telescopic wire tube (154) is smaller than the width and height of the adjustable marking rod (15), the inner diameter of the telescopic wire tube (154) is larger than the diameter of the telescopic wire (155), the length of the telescopic wire (155) is larger than the length of the adjustable marking rod (15), and the diameter of the telescopic wire (155) is smaller than the diameter of the telescopic wire hole (1511).

10. The active marking lens for a microscope according to claim 9, characterized in that: The turntable (11) is fixed by snapping or gluing to the transparent sheet (13) through the transparent sheet slot (111); the adjustable marking rod (15) is fixed by plugging or gluing to one end of the telescopic wire (155) through the telescopic wire hole (1511); the lens magnetic sheet (14) is fixed by gluing to the bottom portion of the turntable (11) except the marking rod slot (115); the marking rod (12) or the adjustable marking rod (15) is restricted in the marking rod slot (115) by gluing between the lens magnetic sheet (14) and the turntable (11); the base magnetic sheet (22) is fixed by gluing to the top of the collar (21); the lens (1) and the base (2) are fixed by magnetic attraction between the lens magnetic sheet (14) and the base magnetic sheet (22), so that the lens (1) and the base (2) can rotate coaxially; the lenses (1) are fixed to each other by magnetic attraction through their respective lens magnetic sheets (14), so that the lenses (1) can rotate coaxially.

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