Microscope tube parfocal calibration testing apparatus with eyepiece integrated into tube

Abstract

The application discloses a microscope tube parfocal calibration and detection equipment with an ocular and a tube, which comprises a base, a pedestal arranged on the base, an oblique light inlet channel, a vertical light reflection channel and a bottom mirror for reflecting light in the light inlet channel to the light reflection channel are arranged in the pedestal, a through mounting tube is arranged on the pedestal at the top of the vertical light channel, a connecting seat is detachably arranged on the mounting tube, the connecting seat is used for connecting a to-be-detected tube assembly, an upper mirror is arranged on one or two oculars of the to-be-detected tube assembly, a mounting slot is arranged on the pedestal at the top of the light inlet channel, and a straight tube assembly is embedded in the mounting slot, the straight tube assembly comprises a tube body, an equivalent lens group with the same magnification as the imaging optical lens group in the to-be-detected tube is arranged in the lower section of the tube body, and an observation assembly with a light source is detachably arranged on the upper section of the tube body.

Description

TECHNICAL FIELD

[0001] The present application relates to a microscope objective lens and barrel integrated microscope barrel focusing calibration detection equipment. BACKGROUND

[0002] The microscope objective lens and barrel integrated microscope barrel includes a barrel seat, the barrel seat is provided with a corner mirror and an internal field mirror, the barrel seat is connected with an objective lens barrel, and the barrel seat is provided with three locking screws arranged at an angle of 120 degrees and used for connecting the objective lens barrel and the barrel seat. The tightness of the locking screw installation directly affects the clarity of the simultaneous imaging of the two objective lenses, and the center focusing of the two objective lens barrels must be ensured by fine adjustment of the focusing calibration detection equipment. SUMMARY

[0003] The technical problem to be solved by the present application is to provide a microscope objective lens and barrel integrated microscope barrel focusing calibration detection equipment.

[0004] To solve the above technical problems, the technical scheme adopted by the present application is as follows: a microscope objective lens and barrel integrated microscope barrel focusing calibration detection equipment, including a base, a base is arranged on the base, an inclined light inlet channel, a vertical light reflection channel, and a bottom mirror for reflecting light in the light inlet channel to the bottom of the light reflection channel are arranged in the base; a through mounting cylinder is arranged on the base at the opening of the vertical light channel, a connecting seat is detachably arranged on the mounting cylinder, the connecting seat is used to connect a to-be-detected barrel assembly, and an upper mirror is arranged on one or two objective lenses of the to-be-detected barrel assembly; a mounting slot is arranged on the base at the opening of the light inlet channel, and a straight cylinder assembly is embedded in the mounting slot; the straight cylinder assembly includes a cylinder body, an equivalent lens group with the same magnification as the imaging optical lens group in the to-be-detected barrel is arranged in the lower section of the cylinder body; an observation assembly with a light source is detachably arranged on the upper section of the cylinder body.

[0005] The observation assembly comprises an outer cylinder, an inner tube movably arranged in the outer cylinder and having a lower end embedded in the cylinder body of the straight cylinder assembly, a lower mounting seat embedded at the lower end of the inner tube, a concave lens cemented assembly arranged in the lower mounting seat, an upper end seat arranged at the upper end of the outer cylinder, a three-piece convex lens assembly with a magnification of more than 5 times arranged at the upper part of the upper end seat, an upper scale plate lens assembly arranged at the lower part of the upper end seat, a crosshair and a scale arranged on the upper scale plate lens assembly, an inner mounting seat arranged at the top of the inner tube, two right-angled triangular prisms cemented together arranged on the inner mounting seat, a mounting through hole arranged on the sidewall of the outer cylinder, a side mounting tube embedded in the mounting through hole, a side scale plate assembly arranged in the side mounting tube, a crosshair arranged on the side scale plate assembly, and a light bulb arranged in the side mounting tube at a side of the side scale plate assembly away from the inner tube; the inclined surface of the right-angled triangular prism is inclined from the lower end to the upper end towards the side mounting tube; a rotary disc arranged on the side of the outer cylinder opposite to the side mounting tube is rotatable along the center line parallel to the axis of the side mounting tube; a transmission steel wire is arranged around the outer periphery of the rotary disc; a spring is connected to the lower end of the transmission steel wire; an avoiding long hole is arranged on the lower segment of the sidewall of the outer cylinder in an axial direction; the lower end of the spring is connected to a transmission rod arranged in the avoiding long hole; the end of the transmission rod is fixed on the sidewall of the inner tube; a knob is connected to the rotary disc to drive the rotary disc to rotate; the knob drives the inner tube to move so that the focal point of the whole formed by the observation assembly and the straight cylinder assembly is located at the mirror surface of the bottom mirror; the concave lens cemented assembly comprises a concave lens and a bottom lens arranged at the lower part of the concave lens, wherein the lower surface of the bottom lens is a plane and the upper surface of the bottom lens is attached to the mirror surface of the concave lens; a pointer is arranged on the sidewall of the outer cylinder; and a scale is arranged on the outer periphery of the knob to cooperate with the pointer.

[0006] As a preferred solution, the three-piece convex lens assembly comprises a first convex lens, a second convex lens and a lower lens arranged in sequence from the upper end to the lower end, the curvature of the second convex lens is greater than that of the first convex lens, and the lower surface of the lower lens is a plane and the upper surface of the lower lens is attached to the mirror surface of the second convex lens.

[0007] As a preferred solution, a threaded through hole is arranged on the upper end seat in a vertical center line direction, a movable seat is rotatably arranged in the threaded through hole, and the three-piece convex lens assembly is embedded in the movable seat; a gland is threadedly connected to the outer part of the upper end seat to press the movable seat, and a through hole is arranged in the middle part of the gland corresponding to the three-piece convex lens assembly.

[0008] As a preferred solution, a positioning connecting ring is arranged on the mounting cylinder, two first mounting clamping blocks are arranged on the inner side of the upper part of the positioning connecting ring, and two second mounting clamping blocks are embedded between the first mounting clamping blocks and the surface of the positioning connecting ring.

[0009] As a preferred solution, a radial threaded through hole is arranged on the positioning connecting ring, and a locking bolt is arranged in the threaded through hole to tightly connect the sidewall of the connecting seat.

[0010] As a preferred scheme, the barrel side wall is provided with a plurality of axially arranged telescopic slots.

[0011] The beneficial effects of the present application are:

[0012] The present collimation calibration detection device reflects the view on the eyepiece of the lens barrel assembly onto the observation assembly and magnifies it through the observation assembly to clearly display and facilitate collimation adjustment.

[0013] Since the concave lens assembly comprises a concave lens and a bottom lens with a planar lower surface and a top surface adhering to the bottom surface of the concave lens, the concave lens is protected and the chromatic aberration of the optical lens is reduced to a certain extent.

[0014] Since the outer barrel side wall is provided with a pointer and the knob outer periphery is provided with a circle of scales matched with the pointer, the adjustment is more intuitive.

[0015] Since the three-piece convex lens assembly comprises a first convex lens, a second convex lens and a bottom lens arranged in sequence from top to bottom, the curvature of the second convex lens is greater than that of the first convex lens, and the bottom lens has a planar lower surface and a top surface adhering to the second convex lens, the combination of multiple lenses can better reduce the chromatic aberration of a single optical lens.

[0016] Since the upper end seat is provided with a central line vertically arranged threaded through hole, the threaded through hole is rotatably provided with a movable seat, and the movable seat is embedded with the three-piece convex lens assembly; the upper end seat is externally threadedly connected with a gland pressing the movable seat, and the gland is provided with a through hole corresponding to the three-piece convex lens assembly in the middle part, which facilitates the installation of the three-piece convex lens assembly and can quickly and slightly adjust the position of the three-piece convex lens assembly, reduces the overall installation precision requirement, greatly improves the installation efficiency and the degree of convenience in use.

[0017] Since the mounting barrel is provided with a positioning connecting ring on the upper end, the inner side of the positioning connecting ring is provided with two first mounting clamping blocks, and the connecting seat is provided with two second mounting clamping blocks embedded between the first mounting clamping blocks and the surface of the positioning connecting ring, which facilitates the installation of the connecting seat.

[0018] Since the positioning connecting ring is provided with a radial threaded through hole, the threaded through hole is provided with a locking bolt tightly connecting the side wall of the connecting seat, which further facilitates the installation of the connecting seat.

[0019] Since the barrel side wall is provided with a plurality of axially arranged telescopic slots, the embedding of the observation assembly is facilitated. BRIEF DESCRIPTION OF DRAWINGS

[0020] Fig. 1This is a schematic diagram of the main structure of the present invention.

[0021] Fig. 2 This is a schematic diagram of the main view structure of the observation component in this invention.

[0022] Figs. 1-2 In the middle: 1 base, 2 base, 3 bottom reflector; 4 mounting cylinder, 5 connecting seat, 6 upper reflector; 7 straight cylinder assembly, 71 cylinder body, 72 equivalent lens group;

[0023] 8. Observation assembly; 81. Outer cylinder; 82. Inner tube; 83. Lower mounting base; 84. Concave lens bonding assembly; 841. Concave lens; 842. Bottom lens; 85. Upper end base; 86. Three-piece convex lens assembly; 87. Upper reticle lens assembly; 88. Inner mounting base; 89. Right-angled triangular prism; 810. Side mounting tube; 811. Side reticle assembly; 812. Illumination bulb; 813. Rotary disc; 814. Drive wire; 815. Spring; 816. Drive rod; 817. Knob; 818. Movable base; 819. Pressure cover;

[0024] 9. Positioning connecting ring, 10. Locking bolt, 11. Lens tube assembly to be tested. Detailed Implementation

[0025] The specific embodiments of the present invention will now be described in detail with reference to the accompanying drawings.

[0026] like Figs. 1-2 As shown, a microscope tube parfocal calibration and testing device integrating the eyepiece and tube includes a base 1, a base 2 on the base 1, an inclined light inlet channel, a vertically arranged reflective channel, and a bottom reflector 3 that reflects light from the light inlet channel to the reflective channel. A through mounting cylinder 4 is provided at the upper opening of the vertically arranged light channel on the base 2. A connecting seat 5 is detachably provided on the mounting cylinder 4. A positioning connecting ring 9 is provided along the upper edge of the mounting cylinder 4. Two first mounting blocks are provided on the upper inner side of the positioning connecting ring 9. Two second mounting blocks are provided on the connecting seat 5, which are embedded between the first mounting blocks and the surface of the positioning connecting ring. The positioning connecting ring 9 has a radial threaded through hole, and a locking bolt 10 is provided in the threaded through hole to tighten against the side wall of the connecting seat 5.

[0027] The connecting seat 5 is used to connect the lens tube assembly 11 to be tested. One or two eyepieces of the lens tube assembly to be tested are covered with an upper reflector 6. The base 2 has a mounting slot at the upper opening of the light inlet channel, and the bottom of the straight tube assembly 7 is embedded in the mounting slot. The straight tube assembly 7 includes a tube body 71. The lower section of the tube body 71 is provided with an equivalent lens group 72 with the same magnification as the imaging optical lens group in the lens tube to be tested. The upper edge of the tube body 71 is detachably provided with an observation component 8 with a light source. The side wall of the tube body 71 is provided with several axially arranged telescopic slots.

[0028] The observation assembly 8 comprises an outer tube 81 embedded in the lower end of the tube body 71 of the straight tube assembly 7, an inner tube 82 movably arranged in the outer tube 81, a lower mounting seat 83 embedded in the lower end of the inner tube 82, a concave lens cemented assembly 84 arranged in the lower mounting seat 83, the concave lens cemented assembly 84 comprising a concave lens and a bottom lens 842 with a flat lower surface and an upper surface adhered to the mirror surface of the concave lens 841. An upper end seat 85 is arranged at the upper end of the outer tube, the upper end seat 85 is provided with a three-piece convex lens assembly 86 with a magnification of 10 times at the upper portion, a threaded through hole is arranged on the upper end seat 85 in a vertical arrangement along the center line, an activity seat 818 is rotatably arranged in the threaded through hole, and the three-piece convex lens assembly 86 is embedded in the activity seat 818; a gland 819 is threadedly connected to the outer portion of the upper end seat 85 to press the activity seat 818, and a through hole is arranged in the middle portion of the gland 819 corresponding to the three-piece convex lens assembly 86. The three-piece convex lens assembly 86 comprises a first convex lens, a second convex lens and a lower lens arranged in sequence from top to bottom, the curvature of the second convex lens is greater than that of the first convex lens, and the lower surface of the lower lens is flat and the upper surface is adhered to the mirror surface of the second convex lens.

[0029] The upper end seat 85 is provided with an upper scale plate lens assembly 87, the upper scale plate lens assembly 87 is provided with a crosshair and a scale, the inner tube 82 is provided with an inner mounting seat 88, the inner mounting seat 88 is provided with two right-angled triangular prisms 89 cemented together, a mounting through hole is arranged on the side wall of the outer tube, and a side mounting tube 810 is embedded in the mounting through hole, the side mounting tube 810 is provided with a side scale plate assembly 811, the side scale plate assembly 811 is provided with a crosshair, and the side mounting tube 810 is provided with a light bead 812 on the side away from the inner tube 82; the inclined surface of the right-angled triangular prism 89 is inclined from bottom to top towards the side mounting tube 810, one side of the outer tube opposite to the side mounting tube 810 is provided with a rotating disc 813 rotatable along the center line in parallel to the axis of the side mounting tube 810, a transmission steel wire 814 is arranged on the outer periphery of the rotating disc 813, a spring 815 is connected to the lower end of the transmission steel wire 814, an axially avoiding long hole is arranged on the lower segment of the side wall of the outer tube, the lower end of the spring 815 is connected to a transmission rod 816 arranged in the avoiding long hole, and the end portion of the transmission rod 816 is fixed on the side wall of the inner tube 82; the rotating disc 813 is connected with a knob 817 for driving the rotating disc 813 to rotate; the outer tube is provided with a pointer, and the knob 817 is provided with a scale matched with the pointer on the outer periphery.

[0030] The rotating knob 817 drives the inner tube 82 to move so that the focal point of the whole formed by the observation assembly 8 and the straight tube assembly 7 is located at the mirror surface of the bottom mirror 3.

[0031] The calibration steps comprise:

[0032] A. Turn on the power supply, cover one eyepiece tube with the upper reflecting mirror 6, and turn the three locking screws on the adjusting tube used to fix the other eyepiece tube until the "rice" character image observed in the observation component 8 is clear; cover the other eyepiece tube with the upper reflecting mirror 6, and turn the three locking screws on the adjusting tube used to fix the uncovered eyepiece tube until the "rice" character image observed in the observation component 8 is clear;

[0033] B. Cover both eyepiece tubes with the reflecting mirror at the same time, and adjust the locking screws of the two eyepiece tubes at the same time until the image in the left eyepiece tube is on the right side of the image in the right eyepiece tube, and at the same time rotate the left and right eyepiece tubes to ensure that the left and right distances between the two "rice" character images are always within six grids of the scale and the up and down distances are within two grids of the scale.

[0034] The above embodiments only exemplarily illustrate the principle and effects of the present invention and some embodiments of its application, rather than being used to limit the present invention; it should be pointed out that for those of ordinary skill in the art, without departing from the concept of the present invention, several modifications and improvements can still be made, and these all fall within the protection scope of the present invention.

Claims

1. A microscope tube parfocal calibration and testing device integrating the eyepiece and tube, comprising a base, characterized in that: The base is provided with a pedestal, within which are an inclined light-entry channel, a vertically arranged reflective channel, and a bottom reflector that reflects light from the light-entry channel to the reflective channel. A through mounting cylinder is provided at the upper opening of the vertically arranged light path on the pedestal. A connecting seat is detachably provided on the mounting cylinder for connecting the lens assembly to be tested. One or both eyepieces of the lens assembly to be tested are covered with an upper reflector. A mounting slot is provided at the upper opening of the light-entry channel on the pedestal, and the bottom of the straight cylinder assembly is embedded in the mounting slot. The straight cylinder assembly includes a cylinder body, the lower section of which contains an equivalent lens group with the same magnification as the imaging optical lens group inside the lens assembly to be tested. An observation component with a light source is detachably provided at the upper edge of the cylinder body. The observation assembly includes an outer cylinder embedded in the upper cylinder of a straight cylinder assembly at its lower end. An inner tube is movably inserted inside the outer cylinder. A lower mounting seat is embedded in the lower end of the inner tube, and a concave lens bonding assembly is housed within the lower mounting seat. An upper end seat is located at the upper end of the outer cylinder. A three-piece convex lens assembly with a magnification of 5x or higher is located on the upper part of the upper end seat. An upper reticle lens assembly is located below the upper end seat. The upper reticle lens assembly has crosshairs and graduations. An inner mounting seat is located at the top of the inner tube. Two right-angled triangular prisms are bonded together on the inner mounting seat. A mounting through hole is located on the side wall of the outer cylinder. A side mounting tube is embedded in the mounting through hole. A side reticle assembly is located within the side mounting tube. The side reticle assembly has crosshairs. An illumination bulb is located on the side of the side reticle assembly away from the inner tube within the side mounting tube. The inclined surface of the right-angled triangular prism is mounted from bottom to top towards the side. The tube is tilted, and a rotating disk is provided on the side of the outer cylinder opposite the side mounting tube, rotating along a center line parallel to the axis of the side mounting tube. A transmission steel wire is wound around the outer circumference of the rotating disk, and a spring is connected to the lower end of the transmission steel wire. An axial clearance hole is opened on the lower section of the outer cylinder side wall. The lower end of the spring is connected to a transmission rod passing through the clearance hole, and the end of the transmission rod is fixed to the inner tube side wall. A knob is connected to the rotating disk to drive the rotating disk to rotate. Rotating the knob moves the inner tube so that the focal point of the whole formed by the observation component and the straight cylinder component is exactly located at the bottom reflector mirror surface. The concave lens cementing component includes a concave lens and a bottom lens with a flat lower surface and an upper surface that fits the concave lens mirror surface. A pointer is provided on the outer cylinder side wall, and a scale is provided on the outer circumference of the knob to cooperate with the pointer.

2. The microscope tube parfocal calibration and testing device integrating eyepiece and tube as described in claim 1, characterized in that: The three-piece convex lens assembly includes a first convex lens, a second convex lens, and a lower lens arranged sequentially from top to bottom. The curvature of the second convex lens is greater than that of the first convex lens. The lower surface of the lower lens is flat, and its upper surface is attached to the mirror surface of the second convex lens.

3. The microscope tube parfocal calibration and testing device integrating eyepiece and tube as described in claim 1, characterized in that: The upper end seat is provided with a threaded through hole arranged vertically along the center line, and a movable seat is rotatably provided in the threaded through hole. The three-piece convex lens assembly is embedded in the movable seat. A pressure cap that presses the movable seat is connected to the outside of the upper end seat by threads. A through hole is provided in the middle of the pressure cap corresponding to the three-piece convex lens assembly.

4. A microscope tube parfocal calibration and testing device integrating eyepiece and tube as described in any one of claims 1-3, characterized in that: The mounting cylinder has a positioning connecting ring along its upper edge. The upper inner side of the positioning connecting ring has two first mounting blocks, and the connecting seat has two second mounting blocks that are embedded between the first mounting blocks and the surface of the positioning connecting ring.

5. The microscope tube parfocal calibration and testing device integrating eyepiece and tube as described in claim 4, characterized in that: The positioning connecting ring is provided with a radial threaded through hole, and a locking bolt is provided in the threaded through hole to tighten against the side wall of the connecting seat.

6. A microscope tube parfocal calibration and testing device integrating eyepiece and tube as described in any one of claims 1-3, characterized in that: The cylinder sidewall is provided with several axially arranged telescopic slots.

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