Device for qualitatively detecting aspherical mirror

Abstract

The utility model relates to a device for qualitatively detecting an aspherical mirror. The device comprises a microscope, a supporting plate arranged below the microscope, a base fixed at the top of the supporting plate, a lower groove formed in the top of the base, a first reticulate pattern, a second reticulate pattern and a supporting plate, wherein the first reticulate pattern and the second reticulate pattern are formed in the upper surface of the lower groove and intersect with each other; the supporting plate is arranged above the base in a lifting manner; an aspherical mirror to be detected is placed on the supporting plate; and the first reticulate patterns and the second reticulate patterns are vertically crossed in an overlooking view angle. The device for qualitatively detecting the aspherical mirror is simple in structure and low in manufacturing cost, is matched with a microscope to assist detection personnel to detect the aspherical mirror, is more convenient to operate, and improves the accuracy of a detection result and the detection efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of medical device detection, and particularly relates to a device for qualitatively detecting an aspherical mirror. Background Art

[0002] A large number of aspherical lenses are required in daily ophthalmic examinations and surgeries. The main function of these lenses is imaging. A very important index of these lenses is that the image cannot be distorted, otherwise it will affect the imaging result, leading to wrong judgments by doctors and diagnostic errors.

[0003] For a designed aspherical lens, theoretically there will be no image distortion. However, during the processing, due to various reasons, the actual completed lens will be different from the design (such as cracks, dents or bumps on the lens surface), so it is necessary to detect the produced aspherical lenses.

[0004] The existing detection of aspherical mirrors requires the use of special instruments for inspection. These instruments cost hundreds of thousands or even millions of yuan, which is a too heavy economic burden for enterprises with small production volumes. Moreover, these special instruments are usually relatively large in volume and occupy a large area in the laboratory. Content of the Utility Model

[0005] The utility model provides a device for qualitatively detecting an aspherical mirror, which solves the defect of high cost existing in the existing detection of aspherical mirrors that requires the use of special instruments.

[0006] To achieve the above object, the technical solution adopted by the utility model is: a device for qualitatively detecting an aspherical mirror, which includes:

[0007] A microscope, a support plate arranged under the microscope, a base fixed on the top of the support plate, a lower groove opened on the top of the base, a first reticulation and a second reticulation which are arranged on the upper surface of the lower groove and intersect with each other, and a support plate which is arranged above the base in a liftable manner, and the aspherical mirror to be detected is placed on the support plate;

[0008] In a top view, the first reticulation and the second reticulation are vertically crossed.

[0009] Optimally, it further includes a top seat fixed on the top of the base, a resisting groove opened on the top of the top seat, a second through groove opened at the bottom of the resisting groove and penetrating through the top seat, a second shoulder formed between the resisting groove and the second through groove, and a lens placed on the second shoulder.

[0010] Optimally, it further includes an upper groove opened on one side of the top seat close to the base and an inclined support part arranged at the bottom of the top seat.

[0011] Optimally, it further includes a detection groove formed at the top of the pallet, a first through groove formed at the bottom of the detection groove and penetrating through the pallet, and a first shoulder formed between the detection groove and the first through groove, and an aspherical mirror to be detected is placed on the first shoulder.

[0012] Optimally, it further includes at least two support rods symmetrically arranged at the top of the support plate and mounting holes penetrating through the pallet, and the support rods are inserted into the mounting holes.

[0013] Optimally, the lower groove is hemispherical.

[0014] Optimally, the diameter of the support rod is equal to the diameter of the mounting hole.

[0015] Due to the application of the above technical solutions, the utility model has the following advantages compared with the prior art:

[0016] When the device for qualitatively detecting an aspherical mirror of the utility model is detecting, the pallet, the base, the top seat and the lens form a device simulating an eyeball, and a first reticulation and a second reticulation which are perpendicular and cross each other are engraved in the base; the support plate, the support rods and the pallet form a bracket of the detecting device, wherein under the action of friction, the pallet can move up and down along the support rods;

[0017] When implementing detection, first place the device under a coaxial light microscope, adjust it to the same optical path. Under the condensing action of the lens, the mutually perpendicular first reticulation and second reticulation in the lower groove can be seen through the microscope and are placed in the middle of the microscope;

[0018] Place the aspherical mirror to be detected on the first shoulder, adjust the microscope until the mutually perpendicular first reticulation and second reticulation can be clearly displayed, and compare the standard cross marking line of the microscope with the displayed reticulation lines, so as to quickly detect whether the graph is deformed and the degree of deformation, thereby determining whether the currently to-be-detected aspherical mirror is qualified; the whole set of equipment has a simple structure and low manufacturing cost, and cooperates with the microscope to assist the detector to detect the aspherical mirror, the operation is more convenient, and the accuracy and efficiency of the detection result are improved. Description of the Drawings

[0019] Figure 1 is a schematic structural view of the utility model;

[0020] Figure 2 is the front view of the utility model;

[0021] Figure 3 is the sectional view of the utility model;

[0022] Figure 4 is the utility model Figure 3 of the front view;

[0023] Figure 5 It is the top view of the base of the present utility model;

[0024] Figure 6 It is the cross-sectional view of the top seat of the present utility model;

[0025] Figure 7 It is the schematic diagram of the forming comparison between the spherical mirror and the aspherical mirror;

[0026] Explanation of the reference numerals in the drawings:

[0027] 1, support plate; 2, support rod; 3, support plate; 4, mounting hole; 5, detection groove; 6, first through groove; 7, first shoulder; 8, base; 9, lower groove; 10, first reticulation; 11, second reticulation; 12, top seat; 13, abutting groove; 14, second through groove; 15, second shoulder; 16, upper groove; 17, inclined support part; 18, lens. Specific embodiments

[0028] The present utility model will be further described below in conjunction with the embodiments shown in the drawings.

[0029] As Figures 1-4 shown, it is the schematic diagram of the device for qualitatively detecting the aspherical mirror of the present utility model. It is usually used to assist the detector to detect the aspherical mirror, reducing the detection cost and improving the detection efficiency at the same time. The device includes a support plate 1, a support rod 2, a support plate 3, a mounting hole 4, a detection groove 5, a first through groove 6, a first shoulder 7, a base 8, a lower groove 9, a first reticulation 10, a second reticulation 11, a top seat 12, an abutting groove 13, a second through groove 14, a second shoulder 15, an upper groove 16, an inclined support part 17 and a lens 18.

[0030] The whole set of device is placed under a coaxial light microscope and detected relying on the standard crosshair of the microscope itself. There are at least two support rods 2 and they are symmetrically fixed on the top of the support plate 1. The symmetrical distribution is to make the force on the support plate 3 more uniform, avoiding the inclination of the support plate 3 when adjusting the height, so as to prevent the aspherical mirror to be detected from tilting and affecting the accuracy of the detection result.

[0031] The mounting hole 4 vertically penetrates the support plate 3, and the mounting hole 4 has the same shape and position as the support rod 2. During actual assembly, the mounting hole 4 is inserted on the support plate 3, and the fixation of the support plate 3 is achieved by relying on the friction between the two. During detection, the position of the support plate 3 can be adjusted up and down according to the thickness of the aspherical mirror to be detected, improving the accuracy of the detection result and having stronger versatility at the same time.

[0032] The mounting hole 4 has the same shape as the support rod 2. As Figures 1-4 shown, the cross-sectional shapes of the two are circular, but it is not limited to circular, and can also be mutually matching ellipses, rectangles, squares, etc.

[0033] As shown Figure 3 , 4 in the figure, the detection groove 5 is opened at the top of the pallet 3, the first through groove 6 is opened at the bottom of the detection groove 5 and penetrates through the pallet 3, and the diameter of the first through groove 6 is smaller than that of the detection groove 5. Therefore, a first shoulder 7 is formed between the detection groove 5 and the first through groove 6, and the aspherical mirror is placed on the first shoulder 7.

[0034] The base 8 is fixed to the top of the support plate 1, and the lower groove 9 is opened at the top of the base 8. The lower groove 9 is hemispherical. The first reticulation 10 and the second reticulation 11 are cross-etched on the upper surface of the hemispherical lower groove 9. As Figure 5 shown, in the top view, the first reticulation 10 and the second reticulation 11 are vertically crossed, and together with the cross reticle of the coaxial light microscope, the detection of the aspherical mirror is completed.

[0035] The top seat 12 is fixed to the top of the base 8. As Figure 6 shown in the sectional view of the top seat 12. The abutting groove 13 is opened at the top of the top seat 12, and the second through groove 14 is opened at the bottom of the abutting groove 13 and penetrates through the top seat 12. The diameter of the second through groove 14 is smaller than that of the abutting groove 13. Therefore, a second shoulder 15 is formed between the abutting groove 13 and the second through groove 14.

[0036] The lens 18 is placed on the second shoulder 15, which is used to gather the first reticulation 10 and the second reticulation 11 that cross each other on the lower groove 9, improve the accuracy of the detection result of the aspherical mirror, and avoid detection errors caused by the light of the first reticulation 10 and the second reticulation 11 being scattered outward (the lens 18 selects a 58D lens 18 to simulate the refraction of the eye cornea, lens and vitreous body).

[0037] The upper groove 16 is opened at the bottom of the top seat 12 to avoid the light gathered by the first reticulation 10 and the second reticulation 11 and prevent occlusion. The inclined support part 17 is inclined at the bottom of the top seat 12 to improve the structural strength of the top seat 12 itself.

[0038] When the device for qualitatively detecting the aspherical mirror of the present utility model is detecting, the base 8, the top seat 12 and the lens 18 form a device for simulating the eye. The first reticulation 10 and the second reticulation 11 that are perpendicular to each other are engraved in the base 8; the support plate 1, the support rod 2 and the pallet 3 form the bracket of the detection device, and among them, under the action of friction, the pallet 3 can move up and down along the support rod 2.

[0039] When implementing the detection, first place the device under the coaxial light microscope and adjust it to the same optical path. Under the light-gathering action of the lens 18, it can be seen through the microscope that the first reticulation 10 and the second reticulation 11 that are perpendicular to each other in the lower groove 9 are placed in the middle of the microscope;

[0040] Place the aspherical mirror to be detected on the first shoulder 7, and adjust the microscope until the first reticulation 10 and the second reticulation 11 perpendicular to each other can be clearly displayed. By comparing the standard crosshair of the microscope with the displayed reticulation lines, it is possible to quickly detect whether the pattern is deformed and the degree of deformation, so as to determine whether the current aspherical mirror to be detected is qualified (if the aspherical mirror is qualified, i.e., Figure 7 the image on the right, then the first reticulation 10 and the second reticulation 11 seen by the microscope are still perpendicular and intersecting, the same as the standard crosshair of the microscope; if the aspherical mirror is unqualified, i.e., Figure 7 the image on the left. At this time, the first reticulation 10 and the second reticulation 11 seen by the microscope are curved and have a certain arc, while the standard crosshair of the microscope is perpendicular to each other. By comparing the standard crosshair of the microscope with the displayed reticulation lines, it is possible to quickly detect whether the pattern is deformed and the degree of deformation, so as to determine whether the current aspherical mirror to be detected is qualified).

[0041] The above embodiments are only for explaining the technical concept and features of the present invention, and the purpose is to enable those who are familiar with this technology to understand the content of the present invention and implement it accordingly, and it cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.

Claims

1. A device for qualitatively detecting aspherical mirrors, characterized in that: It includes: A microscope, a support plate (1) arranged under the microscope, a base (8) fixed on the top of the support plate (1), a lower groove (9) provided on the top of the base (8), a first mesh pattern (10) and a second mesh pattern (11) provided on the upper surface of the lower groove (9) and intersecting with each other, and a support plate (3) arranged above the base (8) in a liftable manner, wherein an aspherical mirror to be detected is placed on the support plate (3); In a top view, the first mesh pattern (10) and the second mesh pattern (11) are vertically intersected.

2. The device for qualitatively detecting aspherical mirrors according to claim 1, characterized in that: It also includes a top seat (12) fixed on the top of the base (8), a supporting groove (13) opened at the top of the top seat (12), a second through groove (14) opened at the bottom of the supporting groove (13) and passing through the top seat (12), a second shoulder (15) formed between the supporting groove (13) and the second through groove (14), and a lens (18) placed on the second shoulder (15).

3. The device for qualitatively detecting aspherical mirrors according to claim 2, characterized in that: It also includes an upper groove (16) provided on one side of the top seat (12) close to the base (8) and an inclined support portion (17) obliquely arranged at the bottom of the top seat (12).

4. The device for qualitatively detecting aspherical mirrors according to claim 1, characterized in that: It also includes a detection groove (5) opened at the top of the support plate (3), a first through groove (6) opened at the bottom of the detection groove (5) and penetrating the support plate (3), and a first shoulder (7) formed between the detection groove (5) and the first through groove (6), wherein an aspherical mirror to be detected is placed on the first shoulder (7).

5. The device for qualitatively detecting aspheric mirrors according to claim 1, characterized in that: It also comprises at least two support rods (2) symmetrically arranged on the top of the support plate (1) and a mounting hole (4) penetrating the support plate (3), wherein the support rod (2) is inserted into the mounting hole (4).

6. The device for qualitatively detecting aspherical mirrors according to claim 1, characterized in that: The lower groove (9) is hemispherical.

7. The device for qualitatively detecting aspherical mirrors according to claim 5, characterized in that: The diameter of the support rod (2) is equal to the diameter of the mounting hole (4).

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