Teaching aid for convex lens imaging law teaching
By designing teaching aids for the imaging principles of convex lenses, and using sliding and rotating structures to simulate convex lens imaging, the problems of students' difficulty in intuitively understanding and teachers' time-consuming and laborious drawing were solved, thereby improving teaching efficiency and quality.
Patent Information
- Application Number
- CN202520445653.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-14
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-03-14
AI Technical Summary
In existing technologies, the teaching of the imaging principles of convex lenses is abstract, making it difficult for students to form an intuitive understanding. For teachers, the drawing process is cumbersome, time-consuming, and laborious, thus reducing teaching efficiency.
A teaching aid for illustrating the imaging principles of convex lenses was designed, comprising a display board, a sliding slide, and a candle model. By adjusting the position and height of the candle model, images of different sizes, orientations, and positions can be simulated. A light rod is used to simulate the optical axis and focal length. Combined with a ruler and a rotating structure, the imaging principles are visually demonstrated.
It improved students' intuitive understanding of the imaging principles of convex lenses, reduced teachers' drawing time, and improved teaching efficiency and quality.
Smart Images
Figure CN223884098U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to physical teaching field especially is related to convex lens imaging law teaching aid. BACKGROUND
[0002] Optical experiments are often needed in physical teaching, and the convex lens imaging law is a key point for students to learn. Students are required to learn and summarize the quantitative relationship between the size, positive and negative, virtual and real of the image and the distance between the object and the image when the convex lens images. However, the existing convex lens imaging law is explained only by blackboard, which is relatively abstract. Students can hardly form an intuitive understanding through the text, pictures on the blackboard and the teacher's explanation. For example, students may only mechanically remember the concepts of the size, positive and negative, virtual and real of the image, but cannot truly understand the reasons and laws. Meanwhile, the teacher needs to hand-draw the candle image of different sizes and positive and negative, and the size, positive and negative, virtual and real, and position of the candle image are different when the convex lens imaging object is at different positions. The teacher needs to hand-draw the candle image of different sizes and positive and negative, which is troublesome and time-consuming, and reduces the teacher's teaching efficiency. Therefore, the convex lens imaging law teaching aid is proposed to solve the above problems. SUMMARY
[0003] The convex lens imaging law teaching aid provided by the utility model solves the problem that students can hardly form an intuitive understanding through the text, pictures on the blackboard and the teacher's explanation, and the problem that the teacher needs to hand-draw the candle image of different sizes and positive and negative, which is troublesome and time-consuming, and reduces the teacher's teaching efficiency.
[0004] To solve the above technical problems, the utility model adopts the technical scheme of a convex lens imaging law teaching aid, which comprises a display board, a sliding tool sliding on the display board, a candle model on the sliding tool, a rotating tool on the display board, a first light ray rod at one end of the candle model, the first light ray rod penetrating through the rotating tool, a second light ray rod on the display board, and a plurality of supporting devices at the bottom of the display board.
[0005] In the preferred scheme, a rotating seat is arranged on one side of the display board, a rotating hole is arranged at the center of the display board, a scale and two sliding grooves are arranged on the display board, and a plurality of schematic columns are arranged at the top of the rotating hole.
[0006] In the preferred scheme, a lead screw is arranged on one side of the display board, the lead screw is connected with the rotating seat, and a handle is arranged at one end of the lead screw.
[0007] In the preferred scheme, the sliding tool comprises a U-shaped frame, sliding plates are arranged at two ends of the U-shaped frame, mounting columns are arranged on one side of the sliding plates, and screw holes are arranged on the U-shaped frame.
[0008] In the preferred scheme, the sliding plates slide against the sliding grooves, and the lead screw is connected with the screw holes.
[0009] In the preferred embodiment, the rotating tool comprises a rotating disc, the rotating disc is rotatably connected with the display board, one side of the rotating disc is provided with a connecting shaft, one end of the connecting shaft abuts against the rotating hole, one side of the rotating disc is provided with a column body, and the column body is provided with a through slot.
[0010] In the preferred embodiment, the first light rod is provided with a through slot, the second light rod abuts against the first hanging column close to the rotating tool, one end of the second light rod is provided with a second sleeve, the second sleeve is rotatably connected with the indicating column, one end of the first light rod is provided with a first sleeve, and the first sleeve covers the candle model.
[0011] In the preferred embodiment, the candle model comprises an inner sliding body and an outer sleeve body, the outer sleeve body is provided with an expansion slot, the inner sliding body is installed on the expansion slot, the outer sleeve body is provided with a rotating shaft, the rotating shaft is provided with a gear, and the inner sliding body is provided with a rack.
[0012] In the preferred embodiment, the rack is engaged with the gear, the inner sliding body is provided with a connecting shaft, one end of the connecting shaft is connected with the first light rod, and the outer sleeve body is provided with two column sleeves, and the installation column abuts against the column sleeve.
[0013] In the preferred embodiment, one side of the display board is provided with a plurality of second candle models, the structure of the second candle model is the same as that of the candle model, the column sleeve at the bottom of the second candle model abuts against the hanging column, and the supporting device comprises a stand column, and the bottom of the stand column is provided with a plurality of suction cups.
[0014] The beneficial effects of the present application are as follows: the rotating screw rod makes the sliding tool slide relative to the display board to adjust the distance between the candle model and the object, one end of the first light rod is located at the top end of the candle model, the first light rod penetrates through the rotating tool to simulate the dynamic light ray passing through the main optical axis, the second light rod simulates the special light ray passing through the focal length, and the intersection of the first light rod and the second light rod is the imaging position.
[0015] The rotating shaft on the candle model is adjusted to make the inner sliding body expand and contract relative to the outer sleeve body, so that the height of the candle model can be adjusted, the structure of the second candle model is the same as that of the candle model, when the imaging position is different, the height of the second candle model is adjusted to make the second candle model simulate different sizes of images, the column sleeve at the bottom of the second candle model is hung on the hanging column, the column sleeve of the candle model is installed on the installation column, so that the candle model simulates a positive object image, and a plurality of second candle models simulate inverted images. The overall device can simulate images of different sizes, different positive and inverted positions, and different positions of the candle. The teacher can avoid the trouble of drawing on the blackboard, and the drawing requires a lot of time and effort, so as to improve the teaching efficiency.
[0016] The device can make students vividly and intuitively understand the convex lens imaging rule by adjusting the candle model position, and intuitively learn the size, positive and negative, virtual and real and other concepts of the image, so that students can truly watch the reason and rule of the formation instead of mechanically memorizing, and the teaching quality is improved, and the device has great popularization value. BRIEF DESCRIPTION OF DRAWINGS
[0017] The utility model will be further described in connection with the drawings and embodiments;
[0018] Figure 1 It is the axial side view of the overall structure of the utility model;
[0019] Figure 2 It is the axial side view of another view of the overall structure of the utility model;
[0020] Figure 3 It is the axial side view of the partial structure of the utility model;
[0021] Figure 4 It is the front view of the partial structure of the utility model;
[0022] Figure 5 It is the side view of the partial structure of the utility model;
[0023] Figure 6 It is the sectional view of the partial structure of the utility model;
[0024] Figure 7 It is the side view of the partial structure of the utility model;
[0025] In the figure: display plate 1, rotating seat 101, sliding groove 102, scale ruler 103, schematic column 104, hanging column 105, rotating hole 106, screw rod 2, handle 201, sliding tool 3, U-shaped frame 301, screw hole 302, sliding plate 303, mounting column 304, rotating tool 4, rotating disc 401, connecting shaft 402, column body 403, through groove 404, first light rod 5, second light rod 6, supporting device 7, stand column 701, suction disc 702, candle model 8, outer sleeve body 801, telescopic groove 8011, inner sliding body 802, rack 803, connecting shaft 804, gear 805, rotating shaft 806, column sleeve 807, second candle model 9. DETAILED DESCRIPTION EMBODIMENT
[0026] As Figures 1-7The utility model discloses a convex lens imaging law teaching aid, including display board 1, be equipped with the sliding slide 3 of display board 1, be equipped with candle model 8 on the slide 3, be equipped with the rotating tool 4 of display board 1, candle model 8 one end is equipped with first light rod 5, and first light rod 5 penetrates rotating tool 4, and be equipped with second light rod 6 on display board 1, and be equipped with a plurality of support device 7 at the bottom of display board 1. By this structure, by rotating screw rod 2, with display board 1 sliding of slide 3, with the distance of candle model 8 object distance is adjusted, and the top of candle model 8 is located in the one end of first light rod 5, and first light rod 5 penetrates rotating tool 4, to make first light rod 5 simulate the dynamic light of main optical axis, and second light rod 6 simulates the special light of focal length, and the intersection of first light rod 5 and second light rod 6 is the position of imaging.
[0027] By adjusting the rotating shaft 806 of the candle model 8, the inner sliding body 802 is extended and retracted relative to the outer sleeve body 801, so that the height of the candle model 8 can be adjusted. The structure of the second candle model 9 is the same as that of the candle model 8. When the imaging position is different, the height of the second candle model 9 is adjusted so that the second candle model 9 can simulate different sizes of images. At the same time, the column sleeve at the bottom of the second candle model 9 is hung on the hanging column 105, and the column sleeve 807 of the candle model 8 is installed on the mounting column 304, so that the candle model 8 simulates positive images, and multiple second candle models 9 simulate inverted images. The overall device can simulate different sizes, different positive and negative, and different positions of the image of the candle. This avoids the trouble of teachers drawing on the blackboard, and the phenomenon of spending a lot of time and effort on drawing. The teaching efficiency is improved.
[0028] The device can adjust the position of the candle model 8, allowing students to vividly and intuitively understand the convex lens imaging law. Students can not only mechanically memorize, but also truly observe the reasons and rules of image formation, improving the quality of teaching.
[0029] In the preferred embodiment, the display board 1 is provided with a rotating seat 101 at one side, a rotating hole 106 is provided at the center of the display board 1, a scale 103 and two sliding grooves 102 are provided on the display board 1, and a plurality of schematic columns 104 are provided at the top of the rotating hole 106. The screw rod 2 is connected with the rotating seat 101, and the scale 103 is used to directly read the position of the object and the image. The schematic columns 104 are used to connect with the second light rod 6. By drawing a convex lens diagram on the display board 1, different schematic columns 104 represent different sizes of convex lenses, and the vertex of the convex lens is the point of the schematic column 104 on the display board 1.
[0030] In the preferred embodiment, the display board 1 is provided with a screw rod 2 at one side, the screw rod 2 is connected with the rotating seat 101, and a handle 201 is provided at one end of the screw rod 2. By rotating the handle 201, the screw rod 2 is rotated.
[0031] In the preferred embodiment, the slide 3 comprises a U-shaped frame 301, the U-shaped frame 301 is provided with slide plates 303 at both ends, the slide plates 303 are provided with mounting columns 304 on one side, and the U-shaped frame 301 is provided with threaded holes 302. In this structure, the slide plates 303 slide against the slide grooves 102.
[0032] In the preferred embodiment, the slide plates 303 slide against the slide grooves 102, and the lead screws 2 are connected with the threaded holes 302. In this structure, the mounting columns 304 abut against the column sleeves 807.
[0033] In the preferred embodiment, the rotating device 4 comprises a rotating disc 401, the rotating disc 401 is rotationally connected with the display panel 1, the rotating disc 401 is provided with a connecting shaft 402 on one side, the connecting shaft 402 abuts against the rotating hole 106 at one end, the rotating disc 401 is provided with a column body 403 on one side, and the column body 403 is provided with a through groove 404. In this structure, the rotating device 4 is located at the center of the display panel 1, the rotating device 4 is rotationally connected with the display panel 1, the first light rod 5 abuts against the through groove 404. The second light rod 6 abuts against the first hanging column 105 close to the rotating device 4, and the intersection of the second light rod 6 and the scale 103 is one focal length of the convex lens.
[0034] In the preferred embodiment, the first light rod 5 penetrates the through groove 404, the second light rod 6 abuts against the first hanging column 105 close to the rotating device 4, one end of the second light rod 6 is provided with a second sleeve, the second sleeve is rotationally connected with the indicating column 104, one end of the first light rod 5 is provided with a first sleeve, and the first sleeve covers the candle model 8. In this structure, when the convex lens is determined, the position of the second light rod 6 is unchanged, the position of the candle model 8 is changed, and the position of the first light rod 5 is changed. The intersection of the first light rod 5 and the second light rod 6 is the top point of the inverted image of the second candle model 9.
[0035] In the preferred embodiment, the candle model 8 comprises an inner sliding body 802 and an outer sleeve body 801, the outer sleeve body 801 is provided with an expansion slot 8011, the inner sliding body 802 is installed in the expansion slot 8011, the outer sleeve body 801 is provided with a rotating shaft 806, the rotating shaft 806 is provided with a gear 805, and the inner sliding body 802 is provided with a rack 803. In this structure, the rotating shaft 806 on the candle model 8 is rotated to rotate the gear 805, move the rack 803, slide the inner sliding body 802 relative to the outer sleeve body 801, and expand the second candle model 9. In this way, the height of the candle model 8 can be adjusted to simulate different heights of objects.
[0036] In the preferred scheme, the rack 803 is engaged with the gear 805, the inner sliding body 802 is provided with a connecting shaft 804, the connecting shaft 804 is connected with one end of the first light bar 5, the outer sleeve body 801 is provided with two column sleeves 807, and the mounting column 304 is abutted on the column sleeves 807. Thus, the structure of the second candle model 9 is same as that of the candle model 8, when the imaging positions are different, the second candle model 9 is adjusted in height, so that the second candle model 9 can simulate different sizes of images.
[0037] In the preferred scheme, the display panel 1 is provided with a plurality of second candle models 9 on one side, the structure of the second candle model 9 is same as that of the candle model 8, the column sleeves at the bottom of the second candle model 9 are abutted on the hanging columns 105, and the supporting device 7 comprises a stand column 701, and the stand column 701 is provided with a plurality of suction cups 702 at the bottom. Thus, the stand column 701 is provided with a plurality of suction cups 702 at the bottom, so that the overall structure can be stably supported.
[0038] The above-mentioned embodiments are only the preferred technical solutions of the present application, and should not be regarded as the limitation of the present application, the protection scope of the present application should be the technical solutions recorded in the claims, including the equivalent replacement schemes of the technical features recorded in the claims as the protection scope. That is, the equivalent replacement improvement in this range is also within the protection scope of the present application.
Claims
1. A teaching aid for explaining the imaging principles of convex lenses, characterized by: The utility model provides a candle model display board, including display board (1), be equipped with the sliding slide (3) on display board (1), be equipped with candle model (8) on slide (3), be equipped with rotating tool (4) on display board (1), one end of candle model (8) is equipped with first light pole (5), first light pole (5) penetrates rotating tool (4), be equipped with second light pole (6) on display board (1), the bottom of display board (1) is equipped with a plurality of support device (7).
2. The convex lens imaging law teaching aid according to claim 1, characterized in that: One side of display board (1) is equipped with rotating seat (101), the center of display board (1) is equipped with rotating hole (106), display board (1) is equipped with scale (103) and two sliding slots (102), the top of rotating hole (106) is equipped with a plurality of schematic column (104).
3. The convex lens imaging rule teaching aid according to claim 2, characterized in that: One side of display board (1) is equipped with lead screw (2), lead screw (2) is connected with rotating seat (101), one end of lead screw (2) is equipped with handle (201).
4. The convex lens imaging law teaching aid of claim 1, wherein the slide is a transparent slide.
5. The convex lens imaging law teaching aid of claim 1, wherein the slide is a translucent slide. Tool (3) includes U-shaped frame (301), both ends of U-shaped frame (301) are equipped with sliding plate (303), one side of sliding plate (303) is equipped with mounting column (304), U-shaped frame (301) is equipped with screw hole (302).
5. The convex lens imaging law teaching aid according to claim 4, characterized in that: Sliding plate (303) is abutted on sliding slot (102) and slides, lead screw (2) is connected with screw hole (302).
6. The convex lens imaging law teaching aid of claim 1, wherein: Rotating tool (4) includes rotating disc (401), rotating disc (401) is rotatably connected with display board (1), one side of rotating disc (401) is equipped with connecting shaft (402), one end of connecting shaft (402) is abutted on rotating hole (106), one side of rotating disc (401) is equipped with column body (403), column body (403) is equipped with through slot (404). 7. The convex lens imaging law teaching aid according to claim 6, characterized in that: First light pole (5) penetrates through slot (404), second light pole (6) is abutted on the first hanging column (105) close to rotating tool (4), one end of second light pole (6) is equipped with second sleeve, second sleeve is rotatably connected with schematic column (104), one end of first light pole (5) is equipped with first sleeve, and first sleeve covers candle model (8).
8. The convex lens imaging law teaching aid of claim 1, wherein: Candle model (8) includes inner sliding body (802) and outer sleeve body (801), outer sleeve body (801) is equipped with telescopic slot (8011), inner sliding body (802) is installed on telescopic slot (8011), outer sleeve body (801) is equipped with rotating shaft (806), rotating shaft (806) is equipped with gear (805), inner sliding body (802) is equipped with rack (803). 9. The convex lens imaging rule teaching aid according to claim 8, characterized in that: Rack (803) is engaged with gear (805), inner sliding body (802) is equipped with connecting shaft (804), one end of connecting shaft (804) is connected with first light pole (5), outer sleeve body (801) is equipped with two column sleeves (807), and mounting column (304) is abutted on column sleeve (807).
10. The convex lens imaging law teaching aid of claim 1, wherein: One side of display board (1) is equipped with a plurality of second candle models (9), the structure of second candle model (9) is same with candle model (8), and the column sleeve at the bottom of second candle model (9) is abutted on hanging column (105), support device (7) includes stand column (701), and the bottom of stand column (701) is equipped with a plurality of suction cups (702).