Skiascope with teaching function

Abstract

The utility model relates to the field of optometry equipment, and discloses a skiascope with a teaching function. According to the retinoscope, a supporting mirror is welded to the outer surface of the upper end of a retinoscope main shell, a reference fixing block is movably connected to the upper surface of the supporting mirror, a columnar reflecting mirror is movably connected to the position, corresponding to the reference fixing block, of the upper surface of the retinoscope main shell, and a supporting plate is fixedly connected to the outer surface of the columnar reflecting mirror; a supporting frame is fixedly connected to the outer surface of the supporting plate, an observation window is fixedly connected to the outer surface of the side, away from the supporting plate, of the supporting frame, and when teaching is needed, the columnar reflecting mirror is inserted into the reference fixing block, the observation plate abuts against the columnar reflecting mirror, and the whole device is inserted into the movable groove to be fixed to the platform position for horizontal displacement; the center of the columnar reflector is located in the center of the observation plate, so that observation windows on the two sides of the supporting frame can observe at the same time, and an inspector can conveniently see images in the skiascope by himself or herself and can see the images by others.

Description

Technical Field

[0001] This application belongs to the technical field of optometry equipment, and specifically relates to a retinoscope with a teaching function. Background Technique

[0002] A retinoscope is a commonly used instrument for objective optometry. The main principle is to use the illumination system of the retinoscope to illuminate the interior of the eyeball. The light is reflected back from the retina, and these reflected lights change after passing through the refractive components of the eyeball. By examining the changes in the reflected lights, the refractive state of the eyeball can be judged.

[0003] During retinoscopy, the examiner holds the retinoscope and projects the light spot onto the fundus of the eye to be examined, and moves the light spot back and forth along a certain direction. By observing the moving direction of the light spot after reflection and refraction by the eye to be examined, the examiner judges whether the eye to be examined is exactly focused on the examiner's eye plane, in front of or behind the eye. Then, a lens with a certain refractive power is placed in front of the eye to be examined. When the lens placed makes the light spot on the fundus of the eye to be examined exactly conjugate with the examiner's eye plane, the refractive error degree of the eye to be examined can be obtained according to the refractive power of the lens placed and the distance between the eye to be examined and the examiner.

[0004] Currently, the retinoscopes used clinically do not have a teaching mirror and do not have a teaching function, that is, only the examiner himself can see the image in the retinoscope while others cannot. And during the retinoscopy optometry process, it is relatively difficult to judge the neutralization point, and there is subjectivity. Utility Model Content

[0005] The purpose of this application is to: In order to solve the above-mentioned problem that the retinoscopes used clinically currently do not have a teaching mirror and do not have a teaching function, that is, only the examiner himself can see the image in the retinoscope while others cannot. And during the retinoscopy optometry process, it is relatively difficult to judge the neutralization point, and there is subjectivity, a retinoscope with a teaching function is provided.

[0006] The technical solution adopted by this application is as follows: A retinoscope with a teaching function includes a main retinoscope housing. A support mirror is welded to the outer surface of the upper end of the main retinoscope housing. A reference fixing block is movably connected to the upper surface of the support mirror. A columnar reflector is movably connected to the main retinoscope housing corresponding to the reference fixing block. A support plate is fixedly connected to the outer surface of the columnar reflector. A support frame is fixedly connected to the outer surface of the support plate. An observation window is fixedly connected to the outer surface of the support frame away from the support plate.

[0007] By adopting the above technical solution, when teaching is needed, the cylindrical reflecting mirror is inserted at the reference fixing block, the observation plate is pressed against it, and the whole device is inserted into the movable slot and fixed at the platform position for horizontal displacement. The center of the cylindrical reflecting mirror is at the center position of the observation plate, so as to complete the observation of the observation windows on both sides of the support frame at the same time, which is convenient for the examiner to see the image in the retinoscope by himself and for others to see, which can help to jointly judge the neutral point and improve the accuracy of optometry. At the same time, in the presence of the teaching mirror, the teaching teacher can more intuitively display the operation details, which is convenient for students to better master the retinoscopy technology.

[0008] In a preferred embodiment, an observation plate is movably connected to the outer surface of the upper end of the main housing of the retinoscope, and an adjustment knob is movably connected to the inner surface of the main housing of the retinoscope.

[0009] By adopting the above technical solution, the observation plate ensures the observation when using the retinoscope alone, and at the same time, the damping effect of the cylindrical reflecting mirror, the support plate, and the adjustment knob on the main housing of the retinoscope ensures the rotation adjustment of the adjustment knob to assist the plate and the reflecting mirror.

[0010] In a preferred embodiment, an auxiliary plate is fixedly connected to the inner surface of the adjustment knob, and a reflecting mirror is fixedly connected to the outer surface of the auxiliary plate.

[0011] By adopting the above technical solution, the light reaches the reflecting mirror, is reflected into the eye to be measured, and is reflected back and passes through the corresponding hole of the auxiliary plate and is operated through the observation plate.

[0012] In a preferred embodiment, a convex lens is fixedly connected to the inner surface of the main housing of the retinoscope, a light bulb is fixedly connected to the inner surface of the main housing of the retinoscope, and a light bulb switch is arranged on the outer surface of the main housing of the retinoscope.

[0013] By adopting the above technical solution, the internal light bulb is turned on through the light bulb switch to generate a light source, and the light reaches the reflecting mirror through the refraction of the convex lens.

[0014] In a preferred embodiment, a light strip switch is arranged on the outer surface of the main housing of the retinoscope above the light bulb switch, and an LED light strip is fixedly connected to the outer surface of the support frame around the observation window.

[0015] By adopting the above technical solution, by pressing the light strip switch, the LED light strip can be lit on the circuit connected to the reference fixing block and the cylindrical reflecting mirror, which is convenient for the observer at this place to pay more attention to the observation.

[0016] In a preferred embodiment, a reference plate is fixedly connected to the lower surface of the main housing of the retinoscope, and a movable slot is movably connected to the outer surface of the reference plate.

[0017] By adopting the above technical solution, the reference plate can facilitate the insertion of the entire device into the movable slot and fix it in the platform position for horizontal displacement.

[0018] In a preferred embodiment, a scale is movably connected to the outer surface of the movable groove.

[0019] By adopting the above technical solution, the ruler can conveniently indicate the position accurately, and can also conveniently measure the position of the eyeball to be measured by rotation.

[0020] In summary, due to the adoption of the above technical solution, the beneficial effects of this application are:

[0021] In this application, when teaching is needed, the cylindrical reflector is inserted into the reference fixed block, the observation board is held against it, and the whole device is inserted into the movable slot and fixed in the platform position for horizontal displacement. The center of the cylindrical reflector is at the center of the observation board, and the observation windows on both sides of the support frame are completed for simultaneous observation, so that the examiner can see the image in the retinoscope and others can see it, which can help to jointly determine the neutral point and improve the accuracy of optometry. At the same time, with the presence of a teaching mirror, the teaching teacher can show the operation details more intuitively, so that students can better master the retinoscopy technique. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the main device of this application;

[0023] Figure 2 This is the front view of the equipment teaching operation in this application;

[0024] Figure 3 This is the back view of the equipment teaching operation in this application;

[0025] Figure 4 This is a disassembled diagram of the overall structure of the equipment in this application.

[0026] Markings in the figure: 1. Main shell of the retinoscope; 2. Support mirror; 3. Reference fixing block; 4. Cylindrical reflector; 5. Support plate; 6. Support frame; 7. Observation window; 8. Observation plate; 9. Adjustment knob; 10. Auxiliary plate; 11. Reflector; 12. Convex lens; 13. Light bulb; 14. Light bulb switch; 15. Light strip switch; 16. LED light strip; 17. Reference plate; 18. Movable slot; 19. Scale. DETAILED DESCRIPTION

[0027] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in combination with the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0028] Example:

[0029] Reference Figures 1-4 A retinoscope with a teaching function comprises a retinoscope main shell 1, a support mirror 2 is welded to the outer surface of the upper end of the retinoscope main shell 1, a reference fixing block 3 is movably connected to the upper surface of the support mirror 2, a cylindrical reflector 4 is movably connected to the upper surface of the retinoscope main shell 1 corresponding to the reference fixing block 3, a support plate 5 is fixedly connected to the outer surface of the cylindrical reflector 4, a support frame 6 is fixedly connected to the outer surface of the support plate 5, and an observation window 7 is fixedly connected to the outer surface of the support frame 6 away from the support plate 5.

[0030] When teaching is needed, the cylindrical reflector 4 is inserted into the reference fixed block 3, the observation plate 8 is pressed against it, and the whole device is inserted into the movable slot 18 and fixed on the platform position for horizontal displacement. The center of the cylindrical reflector 4 is at the center of the observation plate 8, and then the observation windows 7 on both sides of the support frame 6 are observed at the same time, so that the examiner can see the image in the retinoscope and others can see it, which can help to jointly determine the neutral point and improve the accuracy of optometry. At the same time, with the teaching mirror, the teaching teacher can show the operation details more intuitively, so that students can better master the retinoscopy technique.

[0031] Reference Figures 1-4 An observation plate 8 is movably connected to the outer surface of the upper end of the main housing 1 of the retinoscope, and an adjustment knob 9 is movably connected to the inner surface of the main housing 1 of the retinoscope.

[0032] The observation plate 8 ensures observation when the retinoscope is used alone, and at the same time facilitates the cylindrical reflector 4, the support plate 5, the adjustment knob 9 and the damping effect of the retinoscope main housing 1 to ensure the rotation of the adjustment knob 9 to adjust the auxiliary plate 10 and the reflector 11.

[0033] Reference Figures 1-4 An auxiliary plate 10 is fixedly connected to the inner surface of the adjustment knob 9 , and a reflector 11 is fixedly connected to the outer surface of the auxiliary plate 10 .

[0034] The light reaches the reflector 11, is reflected into the eyeball to be tested, and is reflected back through the corresponding hole of the auxiliary plate 10 and operated through the observation plate 8.

[0035] Reference Figures 1-4A convex lens 12 is fixedly connected to the inner surface of the main shell 1 of the retinoscope, a light bulb 13 is fixedly connected to the inner surface of the main shell 1 of the retinoscope, and a light bulb switch 14 is arranged on the outer surface of the main shell 1 of the retinoscope.

[0036] The internal bulb 13 is turned on by the bulb switch 14 to generate light, which is refracted by the convex lens 12 and reaches the reflector 11 .

[0037] Reference Figures 1-4 A light strip switch 15 is arranged on the outer surface of the main housing 1 of the retinoscope above the light bulb switch 14 , and an LED light strip 16 is fixedly connected to the outer surface of the support frame 6 outside the observation window 7 .

[0038] By pressing the light strip switch 15, the LED light strip 16 can be lit in the circuit connected to the reference fixing block 3 and the columnar reflector 4, so that the observer at the location can pay more attention to observation.

[0039] Reference Figures 1-4 A reference plate 17 is fixedly connected to the lower surface of the main housing 1 of the retinoscope, and a movable groove 18 is movably connected to the outer surface of the reference plate 17.

[0040] The reference plate 17 facilitates the insertion of the entire device into the movable slot 18 and fixes it at the platform position for horizontal displacement.

[0041] Reference Figures 1-4 A scale 19 is movably connected to the outer surface of the movable groove 18.

[0042] The scale 19 is convenient for accurate indication of the position and convenient for measuring the position of the eyeball to be measured by rotation.

[0043] The implementation principle of a teaching retinoscope embodiment of the present application is as follows:

[0044] When in use, the device can be used as a normal retinoscope. The internal bulb 13 is turned on by the bulb switch 14 to generate a light source, which is refracted by the convex lens 12 to reach the reflector 11, reflected into the eyeball to be tested, and reflected back through the corresponding holes of the auxiliary plate 10 for operation through the observation plate 8. When teaching is needed, the cylindrical reflector 4 is inserted into the reference fixing block 3, and the observation plate 8 is supported. The entire device is inserted into the movable groove 18 and fixed in the platform position for horizontal displacement. The center of the cylindrical reflector 4 is at the center position of the observation plate 8, thereby completing the observation windows 7 on both sides of the support frame 6 for simultaneous observation. During translation, by pressing the light strip switch 15, the LED light strip 16 can be lit in the circuit connected to the reference fixing block 3 and the cylindrical reflector 4, so that the observer at that location can pay more attention to observation.

[0045] The above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that: they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the various embodiments of the present application.

Claims

1. A retinoscope with a teaching function, comprising a retinoscope main housing (1), characterized in that: A support mirror (2) is welded to the outer surface of the upper end of the main housing (1) of the retinoscope, a reference fixing block (3) is movably connected to the upper surface of the support mirror (2), a columnar reflector (4) is movably connected to the upper surface of the main housing (1) of the retinoscope corresponding to the reference fixing block (3), a support plate (5) is fixedly connected to the outer surface of the columnar reflector (4), a support frame (6) is fixedly connected to the outer surface of the support plate (5), and an observation window (7) is fixedly connected to the outer surface of the support frame (6) away from the support plate (5).

2. A retinoscope with teaching function as claimed in claim 1, characterized in that: An observation plate (8) is movably connected to the outer surface of the upper end of the main housing (1) of the retinoscope, and an adjustment knob (9) is movably connected to the inner surface of the main housing (1) of the retinoscope.

3. A retinoscope with teaching function as claimed in claim 2, characterized in that: An auxiliary plate (10) is fixedly connected to the inner surface of the adjustment knob (9), and a reflector (11) is fixedly connected to the outer surface of the auxiliary plate (10).

4. A retinoscope with teaching function as claimed in claim 1, characterized in that: A convex lens (12) is fixedly connected to the inner surface of the main housing (1) of the retinoscope, a light bulb (13) is fixedly connected to the inner surface of the main housing (1) of the retinoscope, and a light bulb switch (14) is arranged on the outer surface of the main housing (1) of the retinoscope.

5. A retinoscope with teaching function as claimed in claim 1, characterized in that: The main housing (1) of the retinoscope is provided with a light strip switch (15) on its outer surface above the light bulb switch (14), and the outer surface of the support frame (6) is fixedly connected with an LED light strip (16) outside the observation window (7).

6. A retinoscope with teaching function as claimed in claim 1, characterized in that: A reference plate (17) is fixedly connected to the lower surface of the retinoscope main housing (1), and a movable groove (18) is movably connected to the outer surface of the reference plate (17).

7. A retinoscope with teaching function as claimed in claim 6, characterized in that: The outer surface of the movable groove (18) is movably connected with a scale (19).

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