Combined optical experiment box teaching aid

Abstract

The utility model provides a combined optical experiment box teaching aid. The combined optical experiment box teaching aid is composed of a box body, three drawers capable of being drawn out completely are arranged in the box body and correspond to teaching aids of light reflection, light three-primary color and dispersion and light refraction respectively, and an experiment board is arranged at the top of the box body and corresponds to a light linear propagation teaching aid. According to the teaching aid, experiments of linear propagation of light, reflection of light, refraction of light, three primary colors and dispersion of light and the like are integrated in one experiment box through modular design, and the problems that an existing optical teaching aid is poor in integration, insufficient in light path visualization, complex in operation, poor in portability and the like are solved. The teaching aid has the advantages of simplicity and convenience in operation, clear light path, high interactivity and the like, is suitable for classroom teaching and autonomous exploration of students, and contributes to improving the teaching effect and the scientific literacy of the students.

Description

Technical Field

[0001] This utility model relates to the field of experimental teaching aids, specifically to a combined optical experimental box teaching aid, which is particularly suitable for the demonstration and practice of optical principles such as the rectilinear propagation of light, reflection of light, refraction of light, the three primary colors and dispersion of light, and imaging by convex lenses in classroom teaching. Background Technology

[0002] In optics teaching in primary and secondary schools, experimental teaching aids are important tools to help students understand abstract optical principles. Optical knowledge, such as the rectilinear propagation of light, reflection, refraction, the three primary colors of light and dispersion, and imaging with convex lenses, is core content in the physics curriculum. However, these concepts are often quite abstract, and theoretical explanations alone are insufficient for students to fully understand and master them. Experimental teaching aids, through intuitive demonstrations and hands-on operations, can transform abstract theories into concrete phenomena, helping students establish clear optical concepts and stimulating their interest in scientific inquiry.

[0003] Currently, traditional optical experimental teaching aids generally suffer from the following problems: First, they lack integration, requiring different devices for multiple experiments, leading to cumbersome and inefficient teaching preparation; second, they lack visualization of the optical path, making it difficult for students to clearly observe the propagation path of light, thus affecting experimental results; third, they are complex to operate, making it difficult for students to complete experiments independently, reducing their participation and learning interest; and fourth, they lack portability, hindering teachers' flexible use in the classroom. These problems severely restrict the effectiveness of optical teaching, causing students' understanding of optical principles to often remain superficial, making it difficult to grasp them in depth.

[0004] Therefore, developing a highly integrated, easy-to-operate, clear optical path, and portable modular optical experiment kit is of great significance for improving the quality of optics teaching in primary and secondary schools. This kit not only meets the needs of teachers in the classroom but also provides students with opportunities for independent exploration, cultivating their scientific thinking and practical abilities, thereby effectively promoting a deeper understanding and application of optical knowledge. Utility Model Content

[0005] The purpose of this invention is to provide a modular optical experiment box teaching aid to solve the problems of poor integration, insufficient visualization of optical paths, complex operation, and poor portability of existing optical teaching aids.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] The combined optical experiment box teaching aid includes a teaching aid box body (1). The inner cavity of the teaching aid box body (1) is provided with a first drawer (2), a second drawer (3), and a third drawer (4) arranged longitudinally. One end of the teaching aid box body (1) is provided with a drawer opening. The first drawer (2), the second drawer (3), and the third drawer (4) can be pulled out from the drawer opening. The top of the teaching aid box body (1) is provided with a slide rail (501). The slide rail (501) is provided with a first cross-shaped base (508), a second cross-shaped base (509), a third cross-shaped base (510), and a fourth cross-shaped base (511). The first cross-shaped base (508) is provided with a white screen (504), the second cross-shaped base (509), and the third cross-shaped base (500). The teaching aid box (1) is provided with a first perforated plate (505), a second perforated plate (506) on a third cross-shaped base (510), and a third perforated plate (507) on a fourth cross-shaped base (511); a laser pointer holder (502) is provided at the top of the teaching aid box (1) near the third perforated plate (507), and a laser pointer (503) with its light-emitting point aligned with the small hole of the third perforated plate (507) is clamped on the laser pointer holder (502); a periscope module, a light reflection experiment module, and a plane mirror module are provided in the first drawer (2); a three primary color experiment module and a light dispersion experiment module are provided in the second drawer (3); and a light refraction experiment module and an eyeball magnet are provided in the third drawer (4).

[0008] Preferably, the first cross-shaped base (508), the second cross-shaped base (509), the third cross-shaped base (510), and the fourth cross-shaped base (511) are the same size and located at the same horizontal height, placed parallel to each other, and can move back and forth along two slide rails (501). The first small hole plate (505), the second small hole plate (506), and the third small hole plate (507) are the same size and located at the same horizontal height, placed parallel to the white screen (504). The laser pen (503) clamped on the laser pen holder (502) is in a straight line with the small holes in the first small hole plate (505), the second small hole plate (506), and the third small hole plate (507). The small holes in the first small hole plate (505), the second small hole plate (506), and the third small hole plate (507) are aligned with the center points of the second cross-shaped base (509), the third cross-shaped base (510), and the fourth cross-shaped base (511).

[0009] Preferably, the first drawer (2) has a small square opening on the drawer panel and a small circular opening on the upper side panel of the first drawer (2); the periscope module includes a periscope (201) disposed in the cavity of the first drawer (2) and close to the drawer panel; the light reflection experiment module includes a chamber disposed in the cavity of the first drawer (2) and formed by splicing together an EVA upper plate (215), an EVA bottom plate (216) (fitted with the side bottom plate of the first drawer), an EVA lower plate (217) and an EVA right plate (218), the EVA upper plate (215) has a small circular hole at the lower left corner, the EVA right plate (218) has a small circular hole in the center, and the EVA bottom plate (216) has a first one of the same size attached to it. The EVA triangular base (219), the second EVA triangular base (220), and the third EVA triangular base (221) are provided with a cut in the middle of each of the three bases. A fourth plane mirror (222), a fifth plane mirror (223), and a sixth plane mirror (224) are placed on the cut respectively. A laser head (213) and a battery box (214) are connected to the circular hole of the right plate (218) of the EVA. The laser emitted by the laser head (213) is reflected by the sixth plane mirror (224), the fifth plane mirror (223), and the fourth plane mirror (222) and passes through the circular hole of the upper plate (215) of the EVA.

[0010] More preferably, the plane mirror module includes a third plane mirror (209) disposed above the upper plate (215) of the EVA, a protractor (212) is disposed above the third plane mirror (209), a semi-circular slide rail (210) is disposed around the protractor (212), a sliding laser pen (211) is disposed on the semi-circular slide rail (210), the sliding laser pen (211) can move along the semi-circular slide rail (210), and the laser emitted by the sliding laser pen (211) can just illuminate the center point of the protractor (212).

[0011] Preferably, the periscope (201) is composed of a first lens (202), a first lens barrel (204), a connector (206), a second lens barrel (205), and a second lens (203) assembled in sequence. The first plane mirror (207) can be inserted parallel to the first lens (202), and the second plane mirror (208) can be inserted parallel to the second lens (203). The first plane mirror (207) and the second plane mirror (208) are both at a 135° (or 45°) angle with the first lens barrel (204) and the second lens barrel (205).

[0012] Preferably, the three primary color experimental module includes a small wooden stick (309) disposed in the inner cavity of the second drawer (3). A first three-color turntable (301) and a second three-color turntable (302) are threaded on the small wooden stick (309). A circular buckle (308) is threaded between the first three-color turntable (301) and the second three-color turntable (302). A first buckle (306) and a second buckle (307) are threaded at the front and back of the first three-color turntable (301) and the second three-color turntable (302) respectively. A handle (310) is provided on the second three-color turntable (302). The three color blocks on the first three-color turntable (301) and the second three-color turntable (302) are composed of layers of red cellophane (303), green cellophane (304), and blue cellophane (305).

[0013] More preferably, the light dispersion experiment module includes a first cardboard cuboid base (313) disposed in the inner cavity of the second drawer (3). A handheld prism (314), a flashlight (315), a red watercolor pen (316), a green watercolor pen (317), and a blue watercolor pen (318) are sequentially disposed on the first cardboard cuboid base (313). A magnetic whiteboard (311) is disposed above the first cardboard cuboid base (313), and a magnetic eraser (312) is attached to the magnetic whiteboard (311).

[0014] Preferably, the light refraction experiment module includes a second paper cuboid base (403) located directly below the third drawer (4). The second paper cuboid base (403) is provided with a plano-convex lens (404), a thin convex lens (405), a medium convex lens (406), a semi-circular lens (407), a plano-concave lens (408), a thick convex lens (409), a square lens (410), and a triangular lens (411) in sequence. The inner cavity of the third drawer (4) is provided with a three-way parallel laser pointer (401) near the drawer panel. The three-way parallel laser pointer (401) is placed parallel to the edge of the drawer. A magnetic strip (402) is attached to the front of the three-way parallel laser pointer (401) to facilitate the attachment and replacement of the lens in the second paper cuboid base (403). The inner side of the back panel of the third drawer (4) is provided with a full-surface magnetic sheet (413), and an eyeball magnet (412) is attached to the magnetic sheet (413).

[0015] Preferably, the back of the first drawer (2), the second drawer (3) and the third drawer (4) are provided with a magnetic surface (601), and a first magnetic piece (602), a second magnetic piece (603) and a third magnetic piece (604) are provided on one side of the magnetic surface (601).

[0016] The present invention will be further described below:

[0017] The combined optical experiment box teaching aid of this utility model includes a box body, drawers and a top experiment board. The top experiment board is placed on the top of the box body. The box body has three pull-out drawers, which can be completely removed from the box body.

[0018] The top experimental board includes two slide rails, four cross-shaped bases, three perforated plates, a white screen, a laser pointer holder, and a laser pointer. The two slide rails are mounted on the top of the enclosure. The laser pointer holder is mounted in the middle of the left side of the two slide rails. The four cross-shaped bases are positioned between the two slide rails and can move back and forth. The three perforated plates and the white screen can slide left and right on the cross-shaped bases. The laser pointer is fixed to the laser pointer holder, ensuring that the emitted laser light always passes through the three perforations, making it convenient for students to operate and observe the law of rectilinear propagation of light.

[0019] The first drawer contains a periscope module, a light reflection experiment module, and a plane mirror module.

[0020] The periscope module is located in the first drawer near the drawer panel. The periscope lens, barrel, and connectors can be spliced ​​together. Two plane mirrors can be installed into the lens from the side. The periscope can be adjusted in height up, down, left, and right to see different perspectives. Students can learn about the application of the principle of light reflection in life.

[0021] The light reflection experiment module includes a small house made of EVA board and three plane mirrors, which are placed on the lower right side of the first drawer. The three plane mirrors can be installed on three EVA triangular bases, and students can adjust the angle of the three plane mirrors themselves so that the laser on the right side is reflected through the mirrors and passes through the small hole on the top of the small house, thus practicing the principle of light reflection.

[0022] The plane mirror module is placed above the EVA upper plate. A protractor is installed above the plane mirror, and a semi-circular slide rail is provided around the protractor. A sliding laser pointer is installed on the semi-circular slide rail. The sliding laser pointer can move along the semi-circular slide rail, which makes it easy for students to change the incident angle of the light and keep the laser emitted by the sliding laser pointer shining on the center point of the protractor. This makes it easy for students to operate and observe the law that the reflection angle is equal to the incident angle.

[0023] The second drawer contains experimental modules for the three primary colors of light and the dispersion of light.

[0024] The experiment module for the three primary colors of light is located in the second drawer near the drawer panel. There are two buckles on the front and back of the two three-color turntables, and a circular buckle in the middle of the two three-color turntables. The second three-color turntable has a handle, which makes it easy for students to explore and rotate the turntable to obtain the combination rules of the three primary colors of light.

[0025] The light dispersion experiment module is located on the other side of the second drawer, with a cuboid base on which a handheld prism, a flashlight, and red, green, and blue watercolor pens are placed. Students can use the flashlight to shine on the prism to scatter seven colors of light on the whiteboard on the right, further helping them understand the principles of light scattering. The three colors of watercolor pens are then used to create overlapping drawings on the whiteboard, allowing students to derive the rules for combining the three primary colors through practice.

[0026] The third drawer contains a light refraction experiment module and eyeball magnets.

[0027] The light refraction experiment module is located in the third drawer near the drawer panel and is equipped with three parallel laser pointers. A cuboid base is located directly below the third drawer, and eight different lenses are installed inside the cuboid base. Students can magnetically replace the eight lenses themselves to facilitate observation of the light refraction laws of different lenses and to facilitate collaborative observation among students.

[0028] The eye-shaped magnetic stickers are placed on the right side of the third drawer. Students can use these stickers to understand the imaging principle of convex lenses.

[0029] Compared with the prior art, the present invention has the following beneficial effects:

[0030] High integration: Multiple optical experiments are integrated into one experimental box, making it convenient for teaching and carrying.

[0031] Easy to operate: The modular design makes experimental assembly and operation more convenient, improving teaching efficiency;

[0032] Clear optical path: The laser pointer and adjustable components ensure that the optical path is clearly visible, making it easy for students to observe and understand.

[0033] Highly interactive: Students can complete experiments independently, enhancing their sense of participation and interest in exploration;

[0034] Highly practical: The back of the drawer has a reflection and recording section, which makes it easy for students to record and display experimental results, and promotes group cooperation and discussion. Attached Figure Description

[0035] Figure 1 This is a schematic diagram of the box structure of this utility model;

[0036] Figure 2 This is a schematic diagram of the internal structure of the first drawer of this utility model;

[0037] Figure 3 This is a schematic diagram of the internal structure of the second drawer of this utility model;

[0038] Figure 4 This is a schematic diagram of the internal structure of the third drawer of this utility model;

[0039] Figure 5 This is a schematic diagram of the experimental plate structure for the linear propagation of light from the top of this utility model;

[0040] Figure 6 This is a schematic diagram of the back structure of the three-layer drawer of this utility model;

[0041] Figure 7 This is a schematic diagram of the periscope in the first drawer of this utility model.

[0042] In the diagram: 1. Box body; 2. First drawer; 3. Second drawer; 4. Third drawer; 201. Periscope; 202. First lens; 203. Second lens; 204. First lens barrel; 205. Second lens barrel; 206. Connector; 207. First plane mirror; 208. Second plane mirror; 209. Third plane mirror; 210. Semicircular slide rail; 211. Sliding laser pointer; 212. Protractor; 213. Laser head; 214. Battery box; 215. EVA top plate; 216. EVA bottom plate; 217. 218. EVA bottom plate; 219. EVA right plate; 220. First EVA triangular base; 221. Second EVA triangular base; 222. Third EVA triangular base; 223. Fourth plane mirror; 224. Fifth plane mirror; 225. Sixth plane mirror; 301. First three-color turntable; 302. Second three-color turntable; 303. Red cellophane; 304. Green cellophane; 305. Blue cellophane; 306. First buckle; 307. Second buckle; 308. Circular buckle; 309. Small wooden stick; 310. Handle; 311. Magnetic whiteboard; 312. Magnetic eraser; 313. First cardboard cuboid base; 314. Handheld prism; 315. Flashlight; 316. Red watercolor pen; 317. Green watercolor pen; 318. Blue watercolor pen; 401. Three-way parallel laser pointer; 402. Magnetic strip; 403. Second cardboard cuboid base; 404. Plano-convex lens; 405. Thin convex lens; 406. Medium convex lens; 407. Semicircular lens; 408. Plano-concave lens; 409. Thick convex lens; 410. Square Lens; 411, Prism Lens; 412, Eyeball Magnetic Patch; 413, Magnetic Adhesive Piece; 501, Two Sliding Rails; 502, Laser Pointer Holder; 503, Laser Pointer; 504, White Screen; 505, First Perforated Plate; 506, Second Perforated Plate; 507, Third Perforated Plate; 508, First Cross-Shaped Base; 509, Second Cross-Shaped Base; 510, Third Cross-Shaped Base; 511, Fourth Cross-Shaped Base; 601, Magnetic Adhesive Surface; 602, First Magnetic Adhesive Piece; 603, Second Magnetic Adhesive Piece; 604, Third Magnetic Adhesive Piece. Detailed Implementation

[0043] See Figures 1 to 7The combined optical experiment kit includes a kit body 1. The inner cavity of the kit body 1 has a first drawer 2, a second drawer 3, and a third drawer 4 arranged longitudinally. One end of the kit body 1 has a drawer opening, from which the first drawer 2, second drawer 3, and third drawer 4 can be pulled out. The top of the kit body 1 has a slide rail 501, on which slide rail 501 are slidable first cross-shaped base 508, second cross-shaped base 509, third cross-shaped base 510, and fourth cross-shaped base 511. A white screen 504 is mounted on the first cross-shaped base 508, and a white screen 504 is mounted on the second cross-shaped base 509. The teaching aid box 1 is equipped with a first perforated plate 505, a second perforated plate 506 on a third cross-shaped base 510, and a third perforated plate 507 on a fourth cross-shaped base 511. A laser pointer holder 502 is provided at the top of the teaching aid box 1 near the third perforated plate 507, and a laser pointer 503 with its light-emitting point aligned with the small hole of the third perforated plate 507 is clamped on the laser pointer holder 502. The first drawer 2 contains a periscope module, a light reflection experiment module, and a plane mirror module. The second drawer 3 contains a three primary color experiment module and a light dispersion experiment module. The third drawer 4 contains a light refraction experiment module and an eyeball magnet.

[0044] The first cross-shaped base 508, the second cross-shaped base 509, the third cross-shaped base 510, and the fourth cross-shaped base 511 are the same size and located at the same horizontal height, placed parallel to each other, and can move back and forth along the two slide rails 501. The first small hole plate 505, the second small hole plate 506, and the third small hole plate 507 are the same size and located at the same horizontal height, placed parallel to the white screen 504. The laser pen 503 clamped on the laser pen holder 502 is in a straight line with the small holes in the first small hole plate 505, the second small hole plate 506, and the third small hole plate 507. The small holes in the first small hole plate 505, the second small hole plate 506, and the third small hole plate 507 are aligned with the center points of the second cross-shaped base 509, the third cross-shaped base 510, and the fourth cross-shaped base 511.

[0045] The first drawer 2 has a small square opening on its drawer panel and a small circular opening on its upper side panel. The periscope module includes a periscope 201 disposed within the cavity of the first drawer 2, near the drawer panel. The light reflection experiment module includes a chamber disposed within the cavity of the first drawer 2, formed by an EVA upper plate 215, an EVA bottom plate 216 attached to the side bottom panel of the first drawer, an EVA lower plate 217, and an EVA right plate 218. The lower left corner of the EVA upper plate 215 has a small circular hole, and the center of the EVA right plate 218 has a small circular hole. The EVA bottom plate 216 has a piece of the same size attached to it. The first EVA triangular base 219, the second EVA triangular base 220, and the third EVA triangular base 221 each have a cutout in the middle. A fourth plane mirror 222, a fifth plane mirror 223, and a sixth plane mirror 224 are placed on the cutouts, respectively. A laser head 213 and a battery box 214 are connected to the circular hole of the right EVA plate 218. The laser emitted by the laser head 213 is reflected by the sixth plane mirror 224, the fifth plane mirror 223, and the fourth plane mirror 222, and then passes through the circular hole of the upper EVA plate 215.

[0046] The plane mirror module includes a third plane mirror 209 disposed above the EVA upper plate 215. A protractor 212 is disposed above the third plane mirror 209. A semi-circular slide rail 210 is disposed around the protractor 212. A sliding laser pointer 211 is disposed on the semi-circular slide rail 210. The sliding laser pointer 211 can move along the semi-circular slide rail 210. The laser emitted by the sliding laser pointer 211 can just illuminate the center point of the protractor 212.

[0047] The periscope 201 is composed of a first lens 202, a first lens barrel 204, a connector 206, a second lens barrel 205, and a second lens 203, which are sequentially spliced ​​together. The first plane mirror 207 can be inserted parallel to the first lens 202, and the second plane mirror 208 can be inserted parallel to the second lens 203. The first plane mirror 207 and the second plane mirror 208 are both at an angle of 135° or 45° to the first lens barrel 204 and the second lens barrel 205.

[0048] The three primary color experimental module includes a small wooden stick 309 disposed in the inner cavity of the second drawer 3. A first three-color turntable 301 and a second three-color turntable 302 are threaded onto the small wooden stick 309. A circular buckle 308 is threaded between the first three-color turntable 301 and the second three-color turntable 302. A first buckle 306 and a second buckle 307 are threaded at the front and back of the first three-color turntable 301 and the second three-color turntable 302, respectively. A handle 310 is provided on the second three-color turntable 302. The three color blocks on the first three-color turntable 301 and the second three-color turntable 302 are composed of layers of red cellophane 303, green cellophane 304, and blue cellophane 305, respectively.

[0049] The light dispersion experiment module includes a first paper cuboid base 313 disposed in the inner cavity of the second drawer 3. A handheld prism 314, a flashlight 315, a red watercolor pen 316, a green watercolor pen 317, and a blue watercolor pen 318 are sequentially disposed on the first paper cuboid base 313. A magnetic whiteboard 311 is disposed above the first paper cuboid base 313, and a magnetic eraser 312 is attached to the magnetic whiteboard 311.

[0050] The light refraction experiment module includes a second paper cuboid base 403 located directly below the third drawer 4. The second paper cuboid base 403 is sequentially equipped with a plano-convex lens 404, a thin convex lens 405, a medium convex lens 406, a semi-circular lens 407, a plano-concave lens 408, a thick convex lens 409, a square lens 410, and a triangular lens 411. A three-way parallel laser pointer 401 is located near the drawer panel inside the third drawer 4. The three-way parallel laser pointer 401 is placed parallel to the drawer edge. A magnetic strip 402 is attached to the front of the three-way parallel laser pointer 401 to facilitate the attachment and replacement of the lenses in the second paper cuboid base 403. A full-surface magnetic sheet 413 is located on the inner side of the back panel of the third drawer 4, and an eyeball magnet 412 is attached to the magnetic sheet 413.

[0051] The back of the first drawer 2, the second drawer 3 and the third drawer 4 are each provided with a magnetic surface 601, and a first magnetic piece 602, a second magnetic piece 603 and a third magnetic piece 604 are provided on one side of the magnetic surface 601.

[0052] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A modular optical experiment box teaching aid, comprising a teaching aid box body (1), characterized in that: The teaching aid box (1) has a longitudinally arranged first drawer (2), second drawer (3), and third drawer (4) inside. One end of the teaching aid box (1) has a drawer opening, and the first drawer (2), second drawer (3), and third drawer (4) can be pulled out from the drawer opening. The top of the teaching aid box (1) is provided with a slide rail (501). The slide rail (501) is provided with a sliding first cross-shaped base (508), a second cross-shaped base (509), a third cross-shaped base (510), and a fourth cross-shaped base (511). The first cross-shaped base (508) is provided with a white screen (504), and the second cross-shaped base (509) is provided with a first small hole. The board (505) and the third cross-shaped base (510) are provided with a second small hole plate (506) and a fourth cross-shaped base (511) are provided with a third small hole plate (507); the top of the teaching aid box (1) is provided with a laser pen holder (502) near the third small hole plate (507), and a laser pen (503) with its light-emitting point aligned with the small hole of the third small hole plate (507) is clamped on the laser pen holder (502); the first drawer (2) is provided with a periscope module, a light reflection experiment module and a plane mirror module; the second drawer (3) is provided with a three primary color experiment module and a light dispersion experiment module; the third drawer (4) is provided with a light refraction experiment module and an eyeball magnet.

2. The combined optical experiment box teaching aid according to claim 1, characterized in that: The first cross-shaped base (508), the second cross-shaped base (509), the third cross-shaped base (510), and the fourth cross-shaped base (511) are the same size and located at the same horizontal height, placed parallel to each other, and can move back and forth along two slide rails (501). The first small hole plate (505), the second small hole plate (506), and the third small hole plate (507) are the same size and located at the same horizontal height, placed parallel to the white screen (504). The laser pen (503) clamped on the laser pen holder (502) is in a straight line with the small holes in the first small hole plate (505), the second small hole plate (506), and the third small hole plate (507). The small holes in the first small hole plate (505), the second small hole plate (506), and the third small hole plate (507) are aligned with the center points of the second cross-shaped base (509), the third cross-shaped base (510), and the fourth cross-shaped base (511).

3. The combined optical experiment box teaching aid according to claim 1, characterized in that: The first drawer (2) has a square opening on the drawer panel and a circular opening on the upper side panel; the periscope module includes a periscope (201) located in the cavity of the first drawer (2) and close to the drawer panel; the light reflection experiment module includes a chamber located in the cavity of the first drawer (2) and formed by splicing together an EVA upper plate (215), an EVA bottom plate (216), an EVA lower plate (217), and an EVA right plate (218); a circular hole is provided at the lower left corner of the EVA upper plate (215), a circular hole is provided at the center of the EVA right plate (218), and a first EVA triangular base (218) of the same size is attached to the EVA bottom plate (216). 19) The second EVA triangular base (220) and the third EVA triangular base (221) are provided with a cut in the middle of the first EVA triangular base (219), the second EVA triangular base (220) and the third EVA triangular base (221). A fourth plane mirror (222), a fifth plane mirror (223) and a sixth plane mirror (224) are placed on the cut respectively. A laser head (213) and a battery box (214) are connected to the circular hole of the right plate of EVA (218). The laser emitted by the laser head (213) is reflected by the sixth plane mirror (224), the fifth plane mirror (223) and the fourth plane mirror (222) and passes out through the circular hole of the upper plate of EVA (215).

4. The combined optical experiment box teaching aid according to claim 3, characterized in that: The plane mirror module includes a third plane mirror (209) disposed above the upper plate (215) of the EVA. A protractor (212) is disposed above the third plane mirror (209). A semi-circular slide rail (210) is disposed around the protractor (212). A sliding laser pointer (211) is disposed on the semi-circular slide rail (210). The sliding laser pointer (211) can move along the semi-circular slide rail (210). The laser emitted by the sliding laser pointer (211) can just illuminate the center point of the protractor (212).

5. The combined optical experiment box teaching aid according to claim 3, characterized in that: The periscope (201) is composed of a first lens (202), a first lens barrel (204), a connector (206), a second lens barrel (205), and a second lens (203) assembled in sequence. A first plane mirror (207) is inserted parallel to the first lens (202), and a second plane mirror (208) is inserted parallel to the second lens (203). The first plane mirror (207) and the second plane mirror (208) are at an angle of 135° or 45° to the first lens barrel (204) and the second lens barrel (205).

6. The combined optical experiment box teaching aid according to claim 1, characterized in that: The three primary color experimental module includes a small wooden stick (309) set in the inner cavity of the second drawer (3). A first three-color turntable (301) and a second three-color turntable (302) are threaded on the small wooden stick (309). A circular buckle (308) is threaded between the first three-color turntable (301) and the second three-color turntable (302). A first buckle (306) and a second buckle (307) are threaded at the front and back of the first three-color turntable (301) and the second three-color turntable (302) respectively. A handle (310) is provided on the second three-color turntable (302). The three color blocks on the first three-color turntable (301) and the second three-color turntable (302) are composed of layers of red cellophane (303), green cellophane (304), and blue cellophane (305).

7. The combined optical experiment box teaching aid according to claim 6, characterized in that: The light dispersion experiment module includes a first cardboard cuboid base (313) set in the inner cavity of the second drawer (3). A handheld prism (314), a flashlight (315), a red watercolor pen (316), a green watercolor pen (317), and a blue watercolor pen (318) are arranged sequentially on the first cardboard cuboid base (313). A magnetic whiteboard (311) is set above the first cardboard cuboid base (313), and a magnetic eraser (312) is attached to the magnetic whiteboard (311).

8. The combined optical experiment box teaching aid according to claim 1, characterized in that: The light refraction experiment module includes a second paper cuboid base (403) located directly below the third drawer (4). The second paper cuboid base (403) is provided with a plano-convex lens (404), a thin convex lens (405), a medium convex lens (406), a semi-circular lens (407), a plano-concave lens (408), a thick convex lens (409), a square lens (410), and a triangular lens (411) in sequence. The inner cavity of the third drawer (4) is provided with a three-way parallel laser pointer (401) near the drawer panel. The three-way parallel laser pointer (401) is placed parallel to the edge of the drawer. The inner side of the back panel of the third drawer (4) is provided with a full-surface magnetic absorbing sheet (413). The magnetic absorbing sheet (413) is attached with an eyeball magnet (412).

9. The combined optical experiment box teaching aid according to claim 1, characterized in that: The back of the first drawer (2), the second drawer (3) and the third drawer (4) are provided with a magnetic surface (601), and a first magnetic piece (602), a second magnetic piece (603) and a third magnetic piece (604) are provided on one side of the magnetic surface (601).

Images