Device for shooting ocular surface double-slit image

Abstract

The utility model discloses a device for shooting ocular surface double fissure images, which comprises a base, an adjusting screw rod, a guide rod, a first sliding table, a second sliding table and a fissure light source seat, the adjusting screw rod is rotatably arranged on the base, the guide rod is arranged on the base, the first sliding table and the second sliding table are both in sliding fit with the guide rod, and the fissure light source seat is arranged on the first sliding table and the second sliding table. A first rotating section and a second rotating section which are opposite in rotating direction are arranged on the adjusting screw rod, the first rotating section is in threaded fit with the first sliding table, and the fissure light source seats are arranged on the first sliding table and the second sliding table. Compared with the prior art, the device has the following beneficial effects that by arranging the two slit light source seats of which the positions can be adjusted, two double-slit light spots of which the light spot distance can be adjusted as required are formed, the operation is relatively convenient, and the skill requirement on an operator is relatively low.

Description

TECHNICAL FIELD

[0001] The utility model relates to ophthalmic examination equipment field especially, it relates to a device of shooting eye surface double fissure image. BACKGROUND

[0002] At present, the eye examination often needs to shoot eye surface fissure image, and the commonly used equipment for shooting eye surface fissure image is slit lamp microscope at present, but the slit lamp microscope at present is single fissure light spot, this leads to a problem, if need to check two sides, need to look at one side first and then look at the other side. Such as look at left side first, look at left side after then rotate angle of fissure light knife, look at the other side again, this process is not only relatively complicated operation, and the requirement of operator's operation skill is relatively high. UTILITY MODEL CONTENT

[0003] The utility model provides a kind of device of shooting eye surface double fissure image, by setting two position can be adjusted fissure light source seat, formed two light spot distance can be adjusted double fissure light spot according to need, operation is relatively convenient, and the skill requirement of operator is relatively low.

[0004] The technical scheme adopted by the utility model is as follows:

[0005] A kind of device of shooting eye surface double fissure image, including base, adjusting screw rod, guide rod, first sliding table, second sliding table and fissure light source seat, the adjusting screw rod is rotationally arranged on the base, the guide rod is arranged on base, the first sliding table and the second sliding table are slidably matched together with the guide rod, the adjusting screw rod is provided with the first rotation section and the second rotation section in opposite rotation directions, the first rotation section is threadedly matched together with the first sliding table, the first sliding table and the second sliding table are both provided with the fissure light source seat.

[0006] In the device of shooting eye surface double fissure image, fissure light source seat is arranged on the first sliding table and the second sliding table, i.e. the device contains two fissure light source seats, each fissure light source seat can form a fissure light spot, and two fissure light source seats can generate two fissure light spots, can form double fissure light spot at the edge of the iris of the measured person, and since the first sliding table and the second sliding table are matched with the first rotation section and the second rotation section of adjusting screw rod respectively, the screw directions of the first rotation section and the second rotation section are opposite, so that the first sliding table can be moved closer to each other or away from each other when the adjusting screw rod is twisted, thereby changing the distance between the two fissure light source seats, and thereby changing the distance between the two light spots in the double fissure light spot, thereby meeting the inspection needs of different iris diameters.

[0007] In conclusion, the device is provided with two slit light source seats which can be adjusted, and two slit light spots are formed, the distance of which can be adjusted according to requirements, and the operation is convenient and the skill requirement of the operator is relatively low.

[0008] Optionally, the guide rod has two, and the two guide rods are in parallel, and the adjusting screw rod is located between the two parallel guide rods.

[0009] The first sliding table and the second sliding table are slidably connected with the two guide rods, and the adjusting screw rod is located between the two guide rods, so that the first sliding table and the second sliding table have good sliding stability during adjustment.

[0010] Optionally, it further comprises a knob, which is matched with the adjusting screw rod.

[0011] The knob is used to facilitate the user to rotate the adjusting screw rod.

[0012] Optionally, it further comprises a camera fixing seat, which is matched with the base, and the camera fixing seat is provided with a lens seat, a lens is arranged in the lens seat, and a CMOS and a camera PCBA are arranged on the camera fixing seat.

[0013] The fixing hole of the camera fixing seat and the base is matched by a fastener such as a bolt or a screw.

[0014] Optionally, the slit light source seat comprises a seat body, a slit seat is arranged in the seat body, a slit imaging head, a slit sheet and a light source PCBA are arranged in the slit seat, the slit sheet is located between the light source PCBA and the slit imaging head, a right-angle prism is arranged on the seat body, a cover plate is arranged at one end of the seat body, a pressing block is arranged between the cover plate and the right-angle prism, one end of the pressing block abuts against the cover plate, and the other end of the pressing block abuts against the right-angle prism.

[0015] Specifically, the cover plate and the seat body can be fixed together by a fastener such as a screw or a bolt.

[0016] Optionally, the pressing block is a sponge pressing block.

[0017] The sponge pressing block can press the right-angle prism and avoid damaging the right-angle prism.

[0018] Optionally, it further comprises a handle, which is arranged on the base, and the adjusting screw rod and the handle are located on the two sides of the base, respectively.

[0019] Optionally, the handle is provided with a first control button, a second control button, a switch button and an indicator light.

[0020] The handle is internally provided with a battery and a control circuit board, the control circuit board is electrically connected with the battery, the control circuit board is provided with the first control button, the second control button, the switch button and the indicator lamp, the indicator lamp is used for displaying the power of the battery, the switch button is used for controlling the switch of the circuit system in the device, the light source PCBA and the camera PCBA are electrically connected with the control circuit board, the first control button is used for controlling the light source PCBA, and the two slit light source seats can generate slit light spots or any one slit light source seat generates a slit light spot by pressing the first control button, and the second control button is used for controlling the camera PCBA, and the second control button is pressed to realize the photographing operation.

[0021] The device has the advantages that: two position-adjustable slit light source seats are arranged, two slit light spots are formed, the distance between the two slit light spots can be adjusted according to requirements, the operation is convenient, and the skill requirement of the operator is relatively low. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments described in the present application, and other drawings can also be obtained by those skilled in the art according to these drawings.

[0023] Figure 1 is a schematic diagram of the mounting position of each component on the base;

[0024] Figure 2 is a schematic diagram of the cooperation relationship between the camera fixing seat and the lens seat;

[0025] Figure 3 is a schematic diagram of the structure of the slit light source seat;

[0026] Figure 4 is a schematic diagram of the working principle of the device for shooting the image of the double-slit of the eye surface;

[0027] Figure 5 is a schematic diagram of the use state one of the device for shooting the image of the double-slit of the eye surface;

[0028] Figure 6 is a schematic diagram of the use state two of the device for shooting the image of the double-slit of the eye surface.

[0029] The reference signs in the drawings are as follows: 1, base; 101, fixing hole; 2, adjusting screw; 201, first rotating section; 202, second rotating section; 3, knob; 4, guide rod; 5, seat body; 601, first sliding table; 602, second sliding table; 7, handle; 8, first control button; 9, second control button; 10, indicator light; 11, switch button; 12, camera fixing seat; 13, CMOS; 14, camera PCBA; 15, lens seat; 16, lens; 17, slit seat; 18, pressing block; 19, cover plate; 20, right-angle prism; 21, slit imaging head; 22, slit sheet; 23, light source PCBA; 50, double-slit light spot. DETAILED DESCRIPTION

[0030] In order to make the above objectives, characteristics and advantages of the present application more apparent, specific embodiments of the present application will be described in detail below with reference to the drawings.

[0031] In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application. However, it will be apparent to one skilled in the art that the present application can be practiced without the specific details given below. In other instances, well-known methods, procedures and devices have not been described in detail so as not to unnecessarily obscure aspects of the present application.

[0032] In the description of the present application, it should be noted that the terms used herein are merely for the purpose of describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. For the purpose of description, the sizes of the parts shown in the drawings are not drawn in accordance with the actual proportional relationship. The techniques, methods and devices known to those of ordinary skill in the relevant art can not be discussed in detail, but should be considered as part of the authorized specification under appropriate circumstances. In all examples shown and discussed herein, any specific value should be interpreted as merely exemplary and not as a limitation. Therefore, other examples of exemplary embodiments can have different values. It should be noted that similar reference signs and letters represent similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0033] As shown in the accompanying Figure 1 , the accompanying Figure 2 , the accompanying Figure 3 and the accompanying Figure 4As shown in the drawings, the device for taking the image of the double-slit of the eye surface comprises a base 1, an adjusting screw, a guide rod 4, a first sliding table 601, a second sliding table 602 and a slit light source seat, the adjusting screw is rotationally arranged on the base 1, the guide rod 4 is arranged on the base 1, the first sliding table 601 and the second sliding table 602 are slidably matched with the guide rod 4, the adjusting screw is provided with a first rotating section 201 and a second rotating section 202 with opposite rotating directions, the first rotating section 201 is threadedly matched with the first sliding table 601, and the first sliding table 601 and the second sliding table 602 are both provided with the slit light source seat.

[0034] In the device for taking the image of the double-slit of the eye surface, the slit light source seat is arranged on the first sliding table 601 and the second sliding table 602, that is, the device contains two slit light source seats, each slit light source seat can form a slit light spot, and two slit light source seats can form two slit light spots, and the double-slit light spot 50 can be formed at the edge of the iris of the measured person, and since the first sliding table 601 and the second sliding table 602 are matched with the first rotating section 201 and the second rotating section 202 of the adjusting screw respectively, the screw directions of the first rotating section 201 and the second rotating section 202 are opposite, so that the first sliding table 601 can be moved closer to each other or farther away from each other when the adjusting screw is twisted, so as to change the distance between the two slit light source seats, and thus the distance between the two light spots in the double-slit light spot 50 is changed, so as to meet the inspection requirements of different iris diameters.

[0035] In summary, the device is provided with two position-adjustable slit light source seats, and the double-slit light spot 50 with the distance between the two light spots being adjustable according to requirements is formed, and the operation is relatively convenient and the skill requirement of the operator is relatively low.

[0036] As shown in the drawings of Figure 1 , the drawings of Figure 2 , the drawings of Figure 3 and the drawings of Figure 4 , the guide rod 4 has two guide rods, and the two guide rods 4 are in a parallel state, and the adjusting screw 2 is located between the two parallel guide rods 4.

[0037] The first sliding table 601 and the second sliding table 602 are slidably matched with the two guide rods 4, and the adjusting screw 2 is located between the two guide rods 4, so that the first sliding table 601 and the second sliding table 602 have good sliding stability during adjustment.

[0038] As shown in the drawings of Figure 1 , the drawings of Figure 2 , the drawings of Figure 3 and the drawings of Figure 4 , the device further comprises a knob 3, and the knob 3 is matched with the adjusting screw.

[0039] The knob 3 is used for conveniently rotating the adjusting screw 2.

[0040] As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12. Figure 1 Figure 2 Figure 3 Figure 4 As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12.

[0041] Specifically, the fixing hole 101 of the camera fixing seat 12 and the base 1 are matched together through fasteners such as bolts or screws.

[0042] As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12. Figure 1 Figure 2 Figure 3 Figure 4 As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12. Figure 3 As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12.

[0043] Specifically, the fixing hole 101 of the camera fixing seat 12 and the base 1 are matched together through fasteners such as bolts or screws.

[0044] As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12. Figure 1 Figure 2 Figure 3 Figure 4 As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12.

[0045] The sponge pressing block 18 can press the right-angle prism 20, and damage to the right-angle prism 20 can be avoided.

[0046] As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12. Figure 1 Figure 2 Figure 3 Figure 4 As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12.

[0047] As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12. Figure 1 Figure 2 Figure 3 Figure 4 As shown in Figs. 1-4, the camera fixing seat 12 is matched with the base 1, and the lens seat 15 is arranged on the camera fixing seat 12, and the lens 16 is arranged in the lens seat 15, and the CMOS 13 and the camera PCBA 14 are arranged on the camera fixing seat 12.​​​​​​​​​​​​​​​

[0048] The handle 7 is provided with a battery and a control circuit board, the control circuit board is electrically connected with the battery, the control circuit board is provided with the first control button 8, the second control button 9, the switch button 11 and the indicator lamp 10, the indicator lamp 10 is used for displaying the power of the battery, the switch button 11 is used for controlling the switch of the circuit system in the device, the light source PCBA 23 and the camera PCBA 14 are electrically connected with the control circuit board, the first control button 8 is used for controlling the light source PCBA 23, and the two slit light source seats can generate slit light spots or any one slit light source seat generates a slit light spot by pressing the first control button 8, and the second control button 9 is used for controlling the camera PCBA 14, and the photographing operation can be realized by pressing the second control button 9.

[0049] The accompanying drawings are combined Figure 4 to the accompanying drawings Figure 6 The use process of the device is described in detail.

[0050] Preparation state

[0051] The switch is opened, the equipment is started, and the power indicator lamp is bright.

[0052] The operator presses the light source control button, and the slit light source in the left slit light source and the slit light source in the right slit light source are opened, the left slit light source and the right slit light source respectively emit double slit light spots with an angle of 45° with the horizontal direction, and the distance between the two slit light spots is marked as D.

[0053] In the use state 1, the initial double slit distance is less than the diameter of the measured person's iris:

[0054] As Figure 5 shown, the slit light spots are aligned with the eye part of the measured person, the left slit light source and the right slit light source are respectively located at the left solid circle and the right solid circle, the distance L1 between the left slit light source and the right slit light source forms a double slit light pair 1 on the measured person's iris, and the distance between the two slit light spots is D1, that is, the double slit distance is D1.

[0055] The two slit light spots in the double slit light pair 1 are not at the edge of the measured person's iris, the knob is counterclockwise rotated, the two slit light source seats are respectively adjusted to the left dotted circle and the right dotted circle, the distance L2 between the left slit light source seat and the right slit light source seat forms a double slit light pair 2 on the measured person's iris, the distance between the two slit light spots is D2, the two slit light spots in the double slit light pair 1 are adjusted to the positions of the two slit light spots in the double slit light pair 2, which are at the edge of the measured person's iris, and the second control button is pressed to complete the shooting of the double slit image of the measured person's eye surface. The photographed eye surface double slit image is stored in the storage card.

[0056] Using state 2, the initial double-slit interval is greater than the iris diameter of the measured person, as shown in the figure, the double-slit light spot is aligned with the eye part of the measured person, the left and right slit light source seats are respectively located at the left and right solid circles, and the distance L3 between the left and right slit light sources forms a double-slit light pair 3 on the iris of the measured person, and the distance between the two slit light spots is D3, that is, the double-slit interval is D3. Figure 6

[0057] The two slit light spots in the double-slit light pair 3 are not at the edge of the iris of the measured person, the knob is rotated clockwise, the left and right slit light sources are adjusted to the positions of the left and right dotted circles respectively, the distance L4 between the left and right slit light source seats forms a double-slit light pair 4 on the iris of the measured person, the distance between the two slit light spots is D4, the two slit light spots in the double-slit light pair 3 are adjusted to the positions of the two slit light spots in the double-slit light pair 4, which are at the edge of the iris of the measured person, and the second control button is pressed to complete the shooting of the double-slit image of the eye surface of the measured person. The shot eye surface double-slit image is stored in the memory card.

[0058] The above-described embodiments only express part of the embodiments of the present application, which are described in more detail and in more detail, but cannot be understood as limiting the scope of the patent of the present application. It should be noted that for those skilled in the art, the technical solutions recorded in the foregoing embodiments can still be modified, or some technical features can be replaced equivalently. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included in the protection scope of the present application.​

Claims

1. An apparatus for imaging the ocular surface double break image, characterized by, The utility model provides a slit light source base, first sliding platform, second sliding platform, guide rod, adjusting screw rod and base, the adjusting screw rod rotates and sets up on the base, the guide rod sets up on the base, first sliding platform and second sliding platform all with the guide rod slide together, the adjusting screw rod is provided with the first rotation section and the second rotation section of opposite rotation direction, the first rotation section with first sliding platform thread cooperation together, first sliding platform and second sliding platform all are provided with slit light source base.

2. A device for imaging the double break in the ocular surface according to claim 1, characterized in that, The guide rod has two roots, and the two guide rods are in parallel state, and the adjusting screw rod is located between the two parallel guide rods.

3. The apparatus for imaging the double break in the ocular surface according to claim 1, wherein It also includes a knob, which cooperates with the adjusting screw rod.

4. The apparatus for imaging the double break in the ocular surface of claim 1, wherein, It also includes a camera fixing seat, which cooperates with the base, and the camera fixing seat is provided with a lens seat, a lens is arranged in the lens seat, a CMOS and a camera PCBA are arranged on the camera fixing seat.

5. The apparatus for imaging the double break in the ocular surface of claim 1, wherein, The slit light source base includes a seat body, a slit seat is arranged in the seat body, a slit imaging head, a slit sheet and a light source PCBA are arranged in the slit seat, the slit sheet is located between the light source PCBA and the slit imaging head, a right-angle prism is arranged on the seat body, a cover plate is arranged at one end of the seat body, a pressing block is arranged between the cover plate and the right-angle prism, one end of the pressing block abuts against the cover plate, and the other end of the pressing block abuts against the right-angle prism.

6. A device for imaging the double break in the ocular surface according to claim 5, characterized in that, The pressing block is a sponge pressing block.

7. The apparatus for imaging the double break in the ocular surface according to claim 1, wherein It also includes a handle, which is arranged on the base, and the adjusting screw rod and the handle are located on the two sides of the base respectively.

8. A device for imaging the double break in the ocular surface according to claim 7, characterized in that, The handle is provided with a first control button, a second control button, a switch button and an indicator light.

Images