CN105355126A - Light reflection and refraction measuring apparatus - Google Patents

Light reflection and refraction measuring apparatus Download PDF

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Publication number
CN105355126A
CN105355126A CN201510896619.XA CN201510896619A CN105355126A CN 105355126 A CN105355126 A CN 105355126A CN 201510896619 A CN201510896619 A CN 201510896619A CN 105355126 A CN105355126 A CN 105355126A
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China
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semi
shaped transparent
media containers
circle shaped
transparent media
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CN201510896619.XA
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Chinese (zh)
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CN105355126B (en
Inventor
闭吕庆
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Yulin Normal University
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Yulin Normal University
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    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09BEDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
    • G09B23/00Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes
    • G09B23/06Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics
    • G09B23/22Models for scientific, medical, or mathematical purposes, e.g. full-sized devices for demonstration purposes for physics for optics

Abstract

The invention relates to the teaching appliance technology field, and discloses a light reflection and refraction measuring apparatus. The apparatus comprises a first semicircular transparent medium container accommodating a first liquid medium, and a second semicircular transparent medium container accommodating a second liquid medium; the first semicircular transparent medium container and the second semicircular transparent medium container form a circular structure; a light source that can rotate around the circular structure is installed at the outboard end of the circular structure. According to the invention, the apparatus has the advantages of convenient operation and obvious effect, and the phenomenon and rule of light reflection, refraction and total reflection by different mediums can be better demonstrated.

Description

A kind of reflection and refraction measurement mechanism of light
Technical field
The present invention relates to teaching aid technical field, more particularly, particularly a kind of light reflection with refraction measurement mechanism.
Background technology
The reflection of light, refraction and total reflection are the important contents of Middle School Physics, usually during these experiments of demonstration or adopt optical disk teaching or adopt courseware teaching.But all there is certain deficiency in these two kinds of methods: with the teaching of traditional optical disk, instrument is heavy, move inconvenience, and some light paths can not clearly be demonstrated out; Adopt Multimedia Courseware on Teaching, operation of teacher is more convenient, but some physical phenomenon student is difficult to know from experience vividly and experience, and can only know from experience physical concept and rule from virtual image.Therefore, in order to enrich the content of education, allow the diversification of forms of the content of courses, student is allowed to drop into learning activities energetically, make the knowwhy that it not only learns in books, and experience the actual enjoyment of contact better, experience the glamour of Physical Experiment in life, abstract physical concept and rule image are specialized, allows student understand the general characteristic of light better.Therefore, be necessary that designing a kind of apparatus for demonstrating solves the problems referred to above.
Summary of the invention
The object of the present invention is to provide a kind of reflection of light and refraction measurement mechanism, this device is easy to operate, successful not only, and can demonstrate different medium preferably to light reflection, refraction and total reflection phenomenon and rule thereof.
In order to achieve the above object, the technical solution used in the present invention is as follows:
A kind of reflection and refraction measurement mechanism of light, comprise the first semi-circle shaped transparent media Containers accommodating first liquid medium, accommodate the second semi-circle shaped transparent media Containers of second liquid medium, described first semi-circle shaped transparent media Containers and the second semi-circle shaped transparent media Containers form a circular configuration, the outside of this circular configuration is also provided with the light source that can rotate around this circular configuration, and is the supply module of described light source power supply.
Preferably, also comprise base plate, column, rotary disk and fixed disc, described column is installed on base plate, described rotary disk is rotating to be installed on column, described fixed disc is fixedly installed on column, the axis of this fixed disc and rotary disk coincides, this fixed disc is positioned at the side of rotary disk, described first semi-circle shaped transparent media Containers and the second semi-circle shaped transparent media Containers are installed on fixed disc, described light source is installed on rotary disk, and described supply module is installed on base plate.
Preferably, the periphery of described fixed disc is also provided with angle index value.
Preferably, described light source is installed on rotary disk by a light source fixed head.
Preferably, described fixed disc is also provided with two decks that are relatively fixed, the inner side of each described Fixing clamp-seat is equipped with draw-in groove, and the face that two draw-in grooves form parallels with the surface of contact of the first semi-circle shaped transparent media Containers and the second semi-circle shaped transparent media Containers.
Preferably, the surface of contact place of described first semi-circle shaped transparent media Containers and the second semi-circle shaped transparent media Containers is also provided with eyeglass, and the two ends of this eyeglass are arranged in the draw-in groove of Fixing clamp-seat.
Preferably, the circular configuration that described first semi-circle shaped transparent media Containers and the second semi-circle shaped transparent media Containers form is made up of a transparent plastic annulus, and the bottom of this transparent plastic annulus is bonded in the surface of fixed disc by glue, the end face of this transparent plastic annulus is plastic seal end face, the inside of this transparent plastic annulus is separated by a lamina of septum pellucidum, to form the first semi-circle shaped transparent media Containers and the second semi-circle shaped transparent media Containers mutually separated.
Compared with prior art, the invention has the advantages that: the present invention adopts rotating light source, supply module and two semi-circle shaped transparent media Containers, different liquid mediums is injected in two semi-circle shaped transparent media Containers, by changing the incident angle of light source, can reflection angle under different incidence angles and refraction angle, have simple to operately to understand, digital independent is convenient, the advantage that is applicable to the Experiments of Optics class of secondary and high school.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the reflection of light of the present invention and the stereographic map of refraction measurement mechanism.
Fig. 2 is that the reflection of light of the present invention is carrying out the refraction experiment schematic diagram of light with refraction measurement mechanism.
Fig. 3 is that the reflection of light of the present invention is carrying out the reflecting experimental schematic diagram of light with refraction measurement mechanism.
Fig. 4 is that the reflection of light of the present invention tests schematic diagram with the refraction total reflection that measurement mechanism is carrying out light.
Description of reference numerals: 1, base plate, 2, column, 3, rotary disk, 4, Fixing clamp-seat, 5, fixed disc, 6, light source fixed head, 7, light source, the 8, first semi-circle shaped transparent media Containers, 9, lamina of septum pellucidum, the 10, second semi-circle shaped transparent media Containers, 11, draw-in groove, 12, eyeglass.
Embodiment
Below in conjunction with accompanying drawing, the preferred embodiments of the present invention are described in detail, can be easier to make advantages and features of the invention be readily appreciated by one skilled in the art, thus more explicit defining is made to protection scope of the present invention.
The present invention design based on principle be, refraction and reflection can be there is at interface when light enters another kind of medium by a kind of medium.Inject optically thinner medium when light by optically denser medium and change the incident angle firing angle of light, and after reaching certain angle, refracted ray starts slowly disappear and be totally reflected, continue to increase incident angle, reflection ray brightens almost the same with incident light brightness gradually, now according to formula: N=sini/sinr and N=1/sinc (wherein i, r, c are incident angle, refraction angle and critical angle respectively) can be read by circular protractor.
Consult shown in Fig. 1, the invention provides a kind of reflection of light and refraction measurement mechanism, comprise the first semi-circle shaped transparent media Containers 8 accommodating first liquid medium, accommodate the second semi-circle shaped transparent media Containers 10 of second liquid medium, first semi-circle shaped transparent media Containers 8 and the second semi-circle shaped transparent media Containers 10 form a circular configuration, the outside of this circular configuration is also provided with the light source 7 (can adopt ruddiness) that can rotate around this circular configuration, and is the supply module of described light source 7 power supply.The liquid that first liquid medium is different with the density that second liquid medium adopts.
Concrete, in order to better realize the present invention, it also comprises base plate 1, column 2, rotary disk 3 and fixed disc 5, wherein, column 2 is installed on base plate 1, rotary disk 3 is rotating to be installed on column 2, fixed disc 5 is fixedly installed on column 2, the axis of this fixed disc 5 and rotary disk 3 coincides, this fixed disc 5 is positioned at the side of rotary disk 3, first semi-circle shaped transparent media Containers 8 and the second semi-circle shaped transparent media Containers 10 are installed on fixed disc 5, and light source 7 is installed on rotary disk 3, and described supply module is installed on base plate 1.
Concrete, in order to can better reading numerical values when testing, the present invention be also provided with angle index value on the periphery of described fixed disc 5.This angle index value is corresponding with the first semi-circle shaped transparent media Containers 8, second semi-circle shaped transparent media Containers 10, and namely scale is the form (being equivalent to protractor) of 90 ° ~ 0 ° ~ 90 °.
As preferably, described light source 7 is installed on rotary disk 3 by a light source fixed head 6.
In order to the reflex of good test light, at the surface of contact place of the first semi-circle shaped transparent media Containers 8 and the second semi-circle shaped transparent media Containers 10, eyeglass 12 is also installed.And on fixed disc 5, be also provided with two decks 4 that are relatively fixed, the inner side of each Fixing clamp-seat 4 is equipped with draw-in groove 11, and the face that two draw-in grooves 11 form parallels with the surface of contact of the first semi-circle shaped transparent media Containers 8 and the second semi-circle shaped transparent media Containers 10, the two ends of eyeglass 12 can be arranged in the draw-in groove 11 of Fixing clamp-seat 4 like this, achieve the installation of eyeglass 12.
Concrete, the circular configuration that the first semi-circle shaped transparent media Containers 8 in the present invention and the second semi-circle shaped transparent media Containers 10 form is made up of a transparent plastic annulus, and the bottom of transparent plastic annulus is bonded in the surface of fixed disc 5 by glue, the end face of transparent plastic annulus is plastic seal end face, the inside of this transparent plastic annulus is separated by a lamina of septum pellucidum 9, mutually separates and the first independent sealed semi-circle shaped transparent media Containers 8 and the second semi-circle shaped transparent media Containers 10 to be formed.
Below in conjunction with Fig. 2-Fig. 4, the refraction of light is realized to device of the present invention, reflection, total reflection do following introduction.
Consult shown in Fig. 2, when light source 7 is incident with certain angle from the first semi-circle shaped transparent media Containers 8 or the second semi-circle shaped transparent media Containers 10, namely light is injected first liquid medium or second liquid medium from air and is reflected, pass through light path, clearly can find out refraction angle and reflection angle, then according to formula: N=sini/sinr and N=1/sinc (wherein i, r, c are incident angle, refraction angle and critical angle respectively) can calculate refractive index, namely can demonstrate the refraction of light.
Consult shown in Fig. 3, put one piece of eyeglass 12 at the intersection of the first semi-circle shaped transparent media Containers 8 and the second semi-circle shaped transparent media Containers 10, make light incident with certain angle, light, by eyeglass 12, then reflects, passes through light path, clearly can find out reflection angle, the reflecting experimental of light can be realized.
Consult shown in Fig. 4, when light source is incident with certain angle from the second semi-circle shaped transparent media Containers 10, namely light is injected air from liquid and is reflected, and incident angle slowly increases, and increases to a certain degree, and refracted ray disappears, and will be totally reflected.
Regulate the incident angle of light source in the present invention, realize by rotary disk 3, such as, light path can be allowed to inject in medium with 20 °, 30 °, 40 °, 50 °, 60 °, 70 ° etc.
Such as in the present invention, first liquid medium adopts water, second liquid medium to adopt salt solution, and refractive index and the critical angle of water and salt solution are as shown in table 1 below.
Table 1
Following table 2 is the refractive index of various medium.
Table 2
Medium Refractive index
Vacuum 1.0000
Air 1.0003
Water 1.3333
Salt solution 1.5442
Alcohol 1.3900
Ice 1.3090
Glass 1.5000
The invention has the advantages that: the refraction of light, reflection, total reflection integration 1, can be realized; 2, device is easy to make, light little convenience; 3, can show light path clearly in classroom experiment, not rely on Video tutorials, principle is understandable; Improve the enthusiasm of student, enliven classroom atmosphere, improve the curiosity of student, thus guiding student search problem further; 4, the semicircle media Containers of two different densities can be selected arbitrarily to test.
Although describe embodiments of the present invention by reference to the accompanying drawings; but patent owner can make various distortion or amendment within the scope of the appended claims; as long as be no more than the protection domain described by claim of the present invention, all should within protection scope of the present invention.

Claims (7)

1. a light reflection with refraction measurement mechanism, it is characterized in that: comprise the first semi-circle shaped transparent media Containers (8) accommodating first liquid medium, accommodate the second semi-circle shaped transparent media Containers (10) of second liquid medium, described first semi-circle shaped transparent media Containers (8) and the second semi-circle shaped transparent media Containers (10) form a circular configuration, the outside of this circular configuration is also provided with the light source (7) that can rotate around this circular configuration, and the supply module of powering for described light source (7).
2. light according to claim 1 reflection with refraction measurement mechanism, it is characterized in that: also comprise base plate (1), column (2), rotary disk (3) and fixed disc (5), described column (2) is installed on base plate (1), described rotary disk (3) is rotating to be installed on column (2), described fixed disc (5) is fixedly installed on column (2), the axis of this fixed disc (5) and rotary disk (3) coincides, this fixed disc (5) is positioned at the side of rotary disk (3), described first semi-circle shaped transparent media Containers (8) and the second semi-circle shaped transparent media Containers (10) are installed on fixed disc (5), described light source (7) is installed on rotary disk (3), described supply module is installed on base plate (1).
3. light according to claim 2 reflection with refraction measurement mechanism, it is characterized in that: the periphery of described fixed disc (5) is also provided with angle index value.
4. light according to claim 2 reflection with refraction measurement mechanism, it is characterized in that: described light source (7) is installed on rotary disk (3) by a light source fixed head (6).
5. light according to claim 2 reflection with refraction measurement mechanism, it is characterized in that: described fixed disc (5) is also provided with two decks that are relatively fixed (4), the inner side of each described Fixing clamp-seat (4) is equipped with draw-in groove (11), and the face that two draw-in grooves (11) form parallels with the surface of contact of the first semi-circle shaped transparent media Containers (8) and the second semi-circle shaped transparent media Containers (10).
6. light according to claim 2 reflection with refraction measurement mechanism, it is characterized in that: the surface of contact place of described first semi-circle shaped transparent media Containers (8) and the second semi-circle shaped transparent media Containers (10) is also provided with eyeglass (12), and the two ends of this eyeglass (12) are arranged in the draw-in groove (11) of Fixing clamp-seat (4).
7. light according to claim 2 reflection with refraction measurement mechanism, it is characterized in that: the circular configuration that described first semi-circle shaped transparent media Containers (8) and the second semi-circle shaped transparent media Containers (10) form is made up of a transparent plastic annulus, and the bottom of this transparent plastic annulus is bonded in the surface of fixed disc (5) by glue, the end face of this transparent plastic annulus is plastic seal end face, the inside of this transparent plastic annulus is separated by a lamina of septum pellucidum (9), to form the first semi-circle shaped transparent media Containers (8) and the second semi-circle shaped transparent media Containers (10) mutually separated.
CN201510896619.XA 2015-12-08 2015-12-08 A kind of reflection of light and refraction measuring device Active CN105355126B (en)

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105761593A (en) * 2016-05-21 2016-07-13 成都育芽科技有限公司 Physical experiment instrument for demonstrating optical propagation principle
CN106448392A (en) * 2016-09-09 2017-02-22 靳延 Light refraction demonstration teaching aid
CN106548694A (en) * 2017-02-09 2017-03-29 成都飞航智库科技有限公司 A kind of physics teaching device of demonstration anaclasis reflection
CN107886824A (en) * 2017-12-27 2018-04-06 将乐县科技馆 A kind of optical total-reflection apparatus for demonstrating

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060036888A (en) * 2005-12-21 2006-05-02 윤부연 Optical experimental equipment of reflection and refraction
CN201274114Y (en) * 2008-10-13 2009-07-15 昆明理工大学 Brewster law demonstrator
CN203338645U (en) * 2013-06-28 2013-12-11 王治全 Teaching aid for light reflection and refraction experiments
CN104167142A (en) * 2013-05-18 2014-11-26 王廷杰 Multifunctional optical experiment instrument
CN204576932U (en) * 2015-03-31 2015-08-19 陕西师范大学 Optical demonstration instrument for teaching

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20060036888A (en) * 2005-12-21 2006-05-02 윤부연 Optical experimental equipment of reflection and refraction
CN201274114Y (en) * 2008-10-13 2009-07-15 昆明理工大学 Brewster law demonstrator
CN104167142A (en) * 2013-05-18 2014-11-26 王廷杰 Multifunctional optical experiment instrument
CN203338645U (en) * 2013-06-28 2013-12-11 王治全 Teaching aid for light reflection and refraction experiments
CN204576932U (en) * 2015-03-31 2015-08-19 陕西师范大学 Optical demonstration instrument for teaching

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105761593A (en) * 2016-05-21 2016-07-13 成都育芽科技有限公司 Physical experiment instrument for demonstrating optical propagation principle
CN106448392A (en) * 2016-09-09 2017-02-22 靳延 Light refraction demonstration teaching aid
CN106548694A (en) * 2017-02-09 2017-03-29 成都飞航智库科技有限公司 A kind of physics teaching device of demonstration anaclasis reflection
CN107886824A (en) * 2017-12-27 2018-04-06 将乐县科技馆 A kind of optical total-reflection apparatus for demonstrating

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