Optical teaching experiment platform

Abstract

The utility model relates to an optical teaching experiment platform, which comprises a color experiment device, a light splitting experiment device, a lens imaging device and a refraction and reflection experiment device, wherein the color experiment device is used for carrying out experiment teaching of related knowledge of color synthesis of light, the light splitting experiment device is used for decomposing white light into light with different wavelengths through a light dispersion element, and the lens imaging device is used for carrying out experiment teaching of related knowledge of convex lens imaging. The refraction and reflection experiment device is used for carrying out experiment teaching of light reflection and refraction related knowledge. Compared with the prior art, the optical teaching aid systematically integrates basic optical knowledge, expanded optical knowledge and frontier optical knowledge related to middle schools, and can endow optical teaching with more intuitive principle display and more interesting operation experience.

Description

TECHNICAL FIELD

[0001] The utility model relates to physical teaching experimental apparatus field especially is related to an optical teaching experiment platform. BACKGROUND

[0002] At present, the education of middle school students in physics in domestic schools mainly surrounds the explanation of some physical concepts and theoretical knowledge and the demonstration of simple experiments, and the popular science education in the aspect of related cutting-edge technology knowledge is still lacking, the experimental device is relatively simple and old, does not have the function of assisting the popular science of cutting-edge technology, and it is difficult to arouse the interest of students, and it is impossible to meet the curiosity and exploration of students to science. Optics is an important branch of physics, and it plays a vital role in the development of science and technology in various countries. For example, the chip manufacturing technology of "neck" - high-precision photoetching machine belongs to the category of optics. Therefore, the popularization of optical knowledge, especially the popular science education of optical knowledge related to cutting-edge technology, plays an extremely important role in realizing the grand blueprint of a powerful country in science and education. However, the innovation of middle school students in optical experiments still needs to be improved, and the experimental content and instrument equipment need to be updated, and the related popular science education platform also needs to be innovated systematically to meet the development trend of modern popular science education.

[0003] At present, the structure of the related teaching device in the market with the refraction, reflection and color synthesis of light is relatively simple, the function is also relatively single, and there is lack of correlation between each other, and it is impossible to form a systematic organism to assist modern popular science education. In addition, the product is mainly demonstration, and the content for students to carry out hands-on practice activities is relatively scarce, so there is a serious shortage in the aspects of cutting-edge, interesting, functional and systematic. There are several products about the color synthesis of light on the market, but they can only simply demonstrate the color superposition synthesis of red, green and blue three primary colors in a region, and cannot form complex color patterns according to the needs, which restricts its wide application in modern popular science education. For example, there are several products about the refraction and reflection of light, which only use mirrors or water to demonstrate the reflection and refraction of light, and do not consider that different wavelengths of light sources can cause different refraction angles, and different media (such as oil, chemical reagents, glass, etc.) can cause different refraction angles, so it is impossible to effectively associate the important knowledge point of dispersion of light.

[0004] In summary, in order to better expand the knowledge of middle school students in physics textbook, establish close contact between textbook knowledge and practical application in daily life and related cutting-edge technology, and create a more interesting, operational, knowledgeable and exploratory hands-on experiment environment, and help popular science teaching in middle school, it is necessary to design an optical teaching experiment platform with strong operability and interactivity, which systematically includes related basic optical knowledge, extended optical knowledge and cutting-edge optical knowledge in middle school, so as to help students master optical knowledge from shallow to deep. Utility model content

[0005] The utility model discloses a optical teaching experiment platform, systematicallyly fuse the related basic optical knowledge of middle school, expand optical knowledge and cutting-edge optical knowledge, give optical teaching more intuitive principle display and more interesting operation experience.

[0006] The utility model discloses a optical teaching experiment platform, systematicallyly fuse the related basic optical knowledge of middle school, expand optical knowledge and cutting-edge optical knowledge, give optical teaching more intuitive principle display and more interesting operation experience.

[0007] The utility model provides a optical teaching experiment platform, including color experiment device, spectrometer experiment device, lens imaging device and refraction reflection experiment device,

[0008] Among them, the color experiment device is used for carrying out the experimental teaching of the color synthesis related knowledge of light, including projection screen, optical breadboard and optical element detachably fixed on the optical breadboard through support assembly, the optical element includes color combiner, projection lens and a plurality of monochromatic light source, the light of each monochromatic light source is respectively corrected through corresponding collimating lens barrel, passes through part of light transmission, part of light blocking pattern sample, is incident on different incidence surface of the color combiner, then is shot from the same light exit surface of the color combiner, is projected on the projection screen through the projection lens, and the display of superposition effect is realized.

[0009] The spectrometer experiment device is used for decomposing white light into light of different wavelengths through light dispersion element, and the light dispersion element includes medium type dispersion optical element and grating with periodic structure.

[0010] The lens imaging device is used for carrying out the experimental teaching of the convex lens imaging related knowledge, including second sliding rail adjusting table and first light source, lens and light screen arranged on the second sliding rail adjusting table in sequence, and the first light source is used for emitting specific shape light beam.

[0011] The refraction reflection experiment device is used for carrying out the experimental teaching of the reflection and refraction related knowledge of light, including medium material installation groove, second light source and disc, the disc has angle scale, is arranged in the medium material installation groove, and the diameter of the disc is greater than the depth of the medium material installation groove, and the second light source is arranged at the edge of the disc and can rotate around the center of the disc.

[0012] Further, the support assembly includes sleeve and telescopic support rod, the sleeve is detachably connected with the optical breadboard, and the support rod is inserted in the sleeve and is used for fixing the optical element and adjusting the height of the optical element.

[0013] Further, in the color experiment device, the multiple monochromatic light sources are arranged side by side, light emitted by each monochromatic light source is perpendicular to a plane in which an incident surface of the combined color prism is located, light emitted by one monochromatic light source is normally incident on the incident surface, and light emitted by the remaining monochromatic light sources is respectively bent by a mirror to be normally incident on the remaining incident surfaces of the combined color prism.

[0014] Further, in the color experiment device, the multiple monochromatic light sources are arranged side by side, light emitted by each monochromatic light source is perpendicular to a plane in which an incident surface of the combined color prism is located, light emitted by one monochromatic light source is normally incident on the incident surface, and light emitted by the remaining monochromatic light sources is respectively bent by a mirror to be normally incident on the remaining incident surfaces of the combined color prism.

[0015] Further, in the color experiment device, the projection lens is arranged on the first sliding rail adjusting table to slide and adjust the distance between the projection lens and the projection screen.

[0016] Further, in the color experiment device, the pattern sample is a slide, a mask plate with a light-transmitting pattern, or a light adjusting module based on liquid crystal materials.

[0017] Further, the color experiment device further comprises a signal generator, a computer, a printer and a transparent film arranged on the side of the optical breadboard, the computer is used to generate a black-and-white pattern through built-in programming software according to instructions emitted by the signal generator, the black part in the pattern is a light-blocking area, and the white part is a light-transmitting area, the black-and-white pattern generated by the computer is printed on the transparent film through the printer, and the slide is obtained, and the slide is fixed and adjusted through a two-dimensional fine adjustment film plate clamp arranged on the optical breadboard.

[0018] Further, the light adjusting module comprises one or more liquid crystal sub-modules, each liquid crystal sub-module comprises two polarizers, and at least one liquid crystal cell is arranged between the two polarizers, incident light of each liquid crystal sub-module is first converted into polarized light through the first polarizer, then is modulated through the liquid crystal cell, the polarization direction of the incident light is changed by changing the voltage of the liquid crystal cell, and the modulated polarized light is output as a patterned light beam through the second polarizer.

[0019] Further, in the light splitting experiment device, the medium type dispersive optical element comprises a triangular prism, a right-angle prism, a pentagonal prism, a cylindrical lens, a convex lens and a concave lens.

[0020] Further, the optical teaching experiment platform further comprises a supporting material display module used for placing and displaying supporting materials, and the supporting materials comprise an experiment introduction display board, teaching materials, reference literature and product instruction manuals.

[0021] Compared with the prior art, the optical teaching experiment platform has the following advantages:

[0022] 1. The utility model discloses a kind of optical teaching experimental platform, including color experiment device, light splitting experimental device, lens imaging device and refractive reflection experimental device, create more interesting, operability, knowledge, exploratory hands-on experimental environment, closely link the learning of theoretical knowledge, the application of actual scene and relevant leading technology, provide more interesting operation experience and more intuitive principle show, students can be demonstrated experiment by teacher operation or exploration experiment by self-operation, master light refraction, light reflection, light dispersion, light color synthesis, liquid crystal display principle, projector working principle, field sequential color principle etc.

[0023] 2, The utility model is integrated with mathematical, computer, chemical and other interdisciplinary elements in addition to physical knowledge, forming a set of multi-disciplinary cross-fusion optical teaching experimental platform, to encourage students to use knowledge comprehensively and explore methods to solve practical problems in life. DRAWINGS

[0024] Figure 1 It is the structural schematic diagram of the utility model;

[0025] Figure 2 It is the imaging principle diagram of color experiment device in the utility model;

[0026] Figure 3 It is the structural schematic diagram of support assembly in the utility model;

[0027] Figure 4 It is the use schematic diagram of two-dimensional fine adjustment dry plate clamp in the utility model;

[0028] Figure 5 It is another setting mode of color experiment device in the utility model, corresponding to embodiment 2;

[0029] Explanation of reference numerals: 1, color experiment device, 100, optical breadboard, 101, red light source, 102, green light source, 103, blue light source, 104, collimating lens barrel, 105, reflecting mirror, 106, two-dimensional fine adjustment dry plate clamp, 107, color combining prism, 108, first sliding rail adjusting table, 109, projection lens, 110, projection screen, 111, signal generator, 112, computer, 113, printer, 114, transparent film, 115, sleeve, 116, support rod;

[0030] 2, light splitting experimental device, 200, three-prism, 201, grating;

[0031] 3, lens imaging device, 300, second sliding rail adjusting table, 301, light screen, 302, lens, 303, first light source;

[0032] 4, refraction and reflection experiment device, 401, disc, 402, second light source, 403, medium material placing groove;

[0033] 5, light adjusting module, 501, first liquid crystal sub-module, 502, second liquid crystal sub-module, 503, third liquid crystal sub-module, 504, fourth liquid crystal sub-module;

[0034] 6, supporting data display module. DETAILED DESCRIPTION

[0035] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor should belong to the protection scope of the present application.

[0036] In the description of the present application, it should be noted that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like are the orientations or positional relationships shown in the drawings or the orientations or positional relationships commonly used when the product of the present application is used, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application. For example, "horizontal" only means that its direction is relatively more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly inclined.

[0037] In addition, the terms "first" and "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first" and "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0038] Embodiment 1

[0039] The present embodiment provides an optical teaching experiment platform, as shown in Figure 1 The present embodiment provides an optical teaching experiment platform, as shown in

[0040] The color experiment device 1 comprises a projection screen 110, an optical breadboard 100, and a plurality of optical elements (including a red light source 101, a green light source 102, a blue light source 103, a color combining prism 107, and a projection lens 109), each of which is fixed on the optical breadboard 100 by a support assembly. As shown in Figure 3 , the support assembly comprises a sleeve 115 and an extendable support rod 116, the sleeve 115 can be inserted into the optical breadboard 100, and the support rod 116 is arranged in the sleeve 115 for fixing the optical elements and adjusting the height of the optical elements.

[0041] The color experiment device 1 is used for experimental teaching of the color synthesis of light, and its principle is shown in Figure 2 , the red, green, and blue light sources emit light to the color combining component, and a patterned film (such as a slide or a mask plate) is used to form a pattern for each of the three light beams before reaching the color combining component, and finally the three patterned color lights form an additive color pattern through the color combining component, and the lens enlarges the pattern and projects it onto the imaging screen. In one arrangement, as shown in Figure 1 , the red light source 101, the green light source 102, and the blue light source 103 are arranged side by side and corrected by corresponding collimating lenses 104, the light emitted by each monochromatic light source is perpendicular to the plane where the incident surface of the color combining prism 107 is located, the light emitted by the green light source 102 is normally incident from the incident surface, and the light emitted by the red light source 101 and the blue light source 103 is bent by 90° by the reflecting mirror 105 to normally incident the incident surfaces on both sides of the color combining prism 107, and the multiple incident lights are emitted from the same light-emitting surface of the color combining prism 107 and projected onto the projection screen 110 through the projection lens 109, realizing the display of the additive effect. In a preferred embodiment, the projection lens 109 is arranged on the first slide rail adjusting table 108 to adjust the distance between the projection lens 109 and the projection screen 110.

[0042] The patterned film can be a slide, a mask plate with a light-transmitting pattern, or a light adjusting module 5 based on liquid crystal materials. The slide can be made by the following device: sending instructions to the computer 112 through the signal generator 111, the computer 112 generating a black and white pattern through the built-in programming software, the black part of the pattern being the light-blocking area, and the white part being the light-transmitting area, and printing the black and white pattern generated by the computer 112 on the transparent film 114 through the printer 113 to obtain the slide.

[0043] The light adjusting module 5 comprises a plurality of liquid crystal sub-modules, including but not limited to Figure 1The first liquid crystal sub-module 501, the second liquid crystal sub-module 502, the third liquid crystal sub-module 503 and the fourth liquid crystal sub-module 504 in the first liquid crystal module 500 each include two polarizers, and at least one liquid crystal cell is arranged between the two polarizers. The incident light of each liquid crystal sub-module is first converted into polarized light by the first polarizer, then modulated by the liquid crystal cell, and then output as a patterned light beam by the second polarizer. By changing the voltage of the liquid crystal cell, the polarization direction of the incident light is changed, and a patterned light beam can be transmitted at a low signal voltage (less than 5 volts) or at a high signal voltage (greater than 5 volts). Specifically, the first liquid crystal sub-module 501 is a small-size liquid crystal display module available on the market; the liquid crystal cell in the second liquid crystal sub-module 502 is customized and has a specific arrangement structure, which can adopt a patterned electrode structure, a twisted nematic (TN) structure, a vertically aligned nematic (VAN) structure, a hybrid aligned nematic (HAN) structure, an electrically controlled birefringence (ECB) structure, etc., the purpose being to generate different light beam patterns through different electrical signals; the liquid crystal cell in the third liquid crystal sub-module 503 is composed of a liquid crystal material with a fast response speed, such as a ferroelectric liquid crystal, a blue phase liquid crystal, a dual-frequency liquid crystal, etc., and the response speed is in the order of microseconds; considering that a single liquid crystal cell can only switch between one light beam pattern and no light beam pattern, the fourth liquid crystal sub-module 504 is arranged in the embodiment, i.e., two liquid crystal cells are arranged between the two polarizers, and multiple different light beam patterns can be generated.

[0044] As shown in Figure 4 The slide or light adjustment module 5 can be fixed and adjusted by the two-dimensional fine adjustment glass plate clamp 106 arranged on the optical face breadboard 100.

[0045] The light splitting experimental device 2 is used to decompose white light into light of different wavelengths through a light dispersion element, and the light dispersion element includes a medium type dispersion optical element (such as a triangular prism 200, a right-angle prism, a pentagonal prism, a cylindrical lens, a convex lens, a concave lens, etc.), a periodic structure grating 201 (such as a blazed grating, an amplitude grating, a phase grating, etc.), and other light splitting elements (such as a liquid crystal lens, a liquid crystal taper prism, etc.).

[0046] The lens imaging device 3 is used to carry out experimental teaching of convex lens imaging related knowledge, and includes a second sliding rail adjusting table 300 and a first light source 303, a lens 302 and a light screen 301 arranged in sequence on the second sliding rail adjusting table 300. The first light source 303 is used to emit a light beam with a specific shape, and the second sliding rail adjusting table 300 includes a sliding rail, a sliding block, a sleeve fixed on the sliding block, and a support rod capable of being inserted into the sleeve and used to fix the first light source 303 and the lens 302. If a pinhole plate is used to replace the lens 302, the pinhole imaging phenomenon can be observed on the light screen 301.

[0047] The refraction and reflection experiment device 4 is used for carrying out experiment teaching of the refraction and reflection of light, and includes a medium material placing groove 403, a second light source 402 and a disc 401.

[0048] The supporting data display module 6 is used for placing and displaying supporting data, so as to introduce background knowledge and operation steps of the experiment, and emphasize important knowledge contents, and the supporting data includes an experiment introduction display board, teaching materials, reference literature and product instruction manuals.

[0049] Embodiment 2

[0050] The embodiment is different from the embodiment 1 in that the red light source 101, the green light source 102 and the blue light source 103 are not arranged side by side but directly aligned with the three incident surfaces of the color combination prism 107, and in this case, the reflecting mirror 105 is not needed.

[0051] The utility model discloses an optical teaching experiment platform, unlike the optical experiment device of scattered in the market at present, the utility model discloses closely link together the theoretical knowledge and the practical application in daily life and the related cutting-edge technology, creates the more interesting, operability, knowledge, exploratory hands-on experiment environment, systematically the related basic optical knowledge of middle school, expansion optical knowledge, cutting-edge optical knowledge are included in it, and students can master the color synthesis of light, liquid crystal display principle, projector working principle, field sequential color display principle, spectrum color gamut diagram and other related popular science knowledge by shallow to deep based on relevant demonstration experiment, operation experiment and exploration experiment. In addition, many interdisciplinary elements (such as: physics, mathematics, computer, chemistry etc.) are also integrated in the platform, which can cultivate students' ability to independently explore how to solve practical problems in life.

[0052] The above merely illustrates the specific implementation of the utility model, but the protection scope of the utility model is not limited to this, any skilled person in the art can easily think of various equivalent modifications or replacements within the technical range disclosed by the utility model, and these modifications or replacements should be covered in the protection scope of the utility model. Therefore, the protection scope of the utility model should be subject to the protection scope of the claims.

Claims

1. An optical teaching experiment platform, characterized in that, The application relates to a color experiment device (1), a light dispersion experiment device (2), a lens imaging device (3) and a refraction and reflection experiment device (4). The color experiment device (1) is used for developing experiment teaching of light color synthesis related knowledge, and comprises a projection screen (110), an optical breadboard (100), and optical elements which are detachably fixed on the optical breadboard (100) through a supporting assembly; the optical elements comprise a color combining prism (107), a projection lens (109) and a plurality of monochromatic light sources; light emitted by each monochromatic light source is corrected through a corresponding collimating lens barrel (104), passes through a pattern sample which is partially light-transmitting and partially light-blocking, is normally incident on different incident surfaces of the color combining prism (107), is emitted from a same light emitting surface of the color combining prism (107), is projected onto the projection screen (110) through the projection lens (109), and the superposition effect is displayed. The light dispersion experiment device (2) is used for decomposing white light into light of different wavelengths through a light dispersion element; the light dispersion element comprises a medium type dispersion optical element and a grating (201) with a periodic structure. The lens imaging device (3) is used for developing experiment teaching of convex lens imaging related knowledge, and comprises a second sliding rail adjusting table (300), a first light source (303), a lens (302) and a light screen (301) which are sequentially arranged on the second sliding rail adjusting table (300); the first light source (303) is used for emitting a light beam with a specific shape. The refraction and reflection experiment device (4) is used for developing experiment teaching of light reflection and refraction related knowledge, and comprises a medium material placing groove (403), a second light source (402) and a disc (401); the disc (401) is provided with an angle scale, is arranged in the medium material placing groove (403), and the diameter of the disc (401) is greater than the depth of the medium material placing groove (403); the second light source (402) is arranged at the edge of the disc (401) and can rotate around the center of the disc (401).

2. The optical teaching experiment platform according to claim 1, characterized in that, The supporting assembly comprises a sleeve (115) and a telescopic supporting rod (116); the sleeve (115) is detachably connected with the optical breadboard (100); the supporting rod (116) is inserted into the sleeve (115) and is used for fixing the optical elements and adjusting the height of the optical elements.

3. The optical teaching experiment platform according to claim 1, characterized in that, In the color experiment device (1), the plurality of monochromatic light sources are arranged side by side; the light emitted by each monochromatic light source is perpendicular to the plane where one incident surface of the color combining prism (107) is located; the light emitted by one monochromatic light source is normally incident on the incident surface; and the light emitted by the remaining monochromatic light sources is bent through a reflecting mirror (105) to be normally incident on the remaining incident surfaces of the color combining prism (107).

4. The optical teaching experiment platform according to claim 1, characterized in that, In the color experiment device (1), the plurality of monochromatic light sources are arranged to be perpendicular to different incident surfaces of the color combining prism (107) respectively to be normally incident on the corresponding incident surfaces.

5. The optical teaching experiment platform according to claim 1, wherein, The color experiment device (1) is characterized in that the projection lens (109) is arranged on the first slide adjusting table (108) to adjust the distance between the projection lens (109) and the projection screen (110).

6. The optical teaching experiment platform according to claim 1, wherein, The color experiment device (1) is characterized in that the pattern sample is a slide, a mask plate with a light-transmitting pattern or a light adjusting module (5) based on liquid crystal materials.

7. The optical teaching experiment platform according to claim 6, characterized in that, The color experiment device (1) further comprises a signal generator (111), a computer (112), a printer (113) and a transparent film (114) arranged beside the optical breadboard (100), the computer (112) is used to generate a black-and-white pattern through built-in programming software according to the instruction issued by the signal generator (111), the black part of the pattern is a light-blocking area and the white part is a light-transmitting area, the black-and-white pattern generated by the computer (112) is printed on the transparent film (114) through the printer (113), and the slide is obtained, and the slide is fixed and adjusted through the two-dimensional fine adjustment glass plate clamp (106) arranged on the optical breadboard (100).

8. The optical teaching experiment platform according to claim 6, characterized in that, The light adjusting module (5) comprises one or more liquid crystal sub-modules, each liquid crystal sub-module comprises two polarizers, at least one liquid crystal cell is arranged between the two polarizers, the incident light of each liquid crystal sub-module is first converted into polarized light through the first polarizer, then is modulated through the liquid crystal cell, the polarization direction of the incident light is changed by changing the voltage of the liquid crystal cell, and the modulated polarized light is output as a patterned light beam through the second polarizer.

9. The optical teaching experiment platform according to claim 1, characterized in that, The color experiment device (1) is characterized in that the medium type dispersion optical element comprises a triangular prism (200), a right-angle prism, a pentagonal prism, a cylindrical lens, a convex lens and a concave lens.

10. The optical teaching experiment platform according to claim 1, characterized in that, The color experiment device (1) further comprises a supporting material display module (6) used for placing and displaying supporting materials, and the supporting materials comprise an experiment introduction display board, teaching materials, reference materials and product instruction manuals. The color experiment device (1) is characterized in that the medium type dispersion optical element comprises a triangular prism (200), a right-angle prism, a pentagonal prism, a cylindrical lens, a convex lens and a concave lens.

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