CN214897208U - Geometric optics demonstration instrument - Google Patents

Abstract

The utility model relates to a geometry optics demonstration appearance belongs to teaching instrument technical field. Geometry optics demonstration appearance, the on-line screen storage device comprises a base, the fixed two lift posts that are equipped with in interval on the base, the fixed movable plate that is equipped with on the lift post, two slide respectively on the movable plate and be equipped with ruddiness laser pen and green glow laser pen, two the interval is equipped with first support column and second support column between the lift post, be equipped with first circular glass on the first support column and pile, be equipped with the circular glass of second on the second support column and pile. Has the advantages that: the interesting phenomenon that light is transmitted along a straight line and forms a light ring at the edge of the glass sheet after reflection and refraction is demonstrated, the observation is visual, vivid and interesting, and students can be well helped to understand geometrical and optical knowledge.

Description

Geometric optics demonstration instrument

Technical Field

The utility model belongs to the technical field of teaching instrument, concretely relates to geometry optics demonstration appearance.

Background

Light travels in a straight line in a homogeneous medium and has a certain velocity called the straight-line travel law of light.

Law of reflection of light: when light is reflected, the reflected light, the incident light and the normal are in the same plane; the reflected light and the incident light are respectively positioned at the two sides of the normal; the angle of reflection is equal to the angle of incidence.

When light is reflected on the interface of two media, the reflection phenomenon is different because of the different smoothness of the reflecting surface. If the surface of an object is rough, the normals of the points are not parallel, and even if the incident light rays are parallel, the reflection cannot be performed in a single direction, which is called diffuse reflection of light.

Law of refraction of light: when light strikes the interface of two media, the phenomenon that a part of light enters the second medium to continuously propagate is called light refraction; the refracted ray, the incident ray and the normal are all in the same plane; the refracted ray and the incident ray are respectively positioned on two sides of the normal; the ratio of the sine of the angle of incidence to the sine of the angle of refraction is a constant.

Most of the prior light reflection and refraction demonstration instruments are linear light, and the phenomena of reflection and refraction often occur only at one position, so that the observation is relatively monotonous.

Therefore, a geometrical optics demonstration instrument is provided to solve the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a solve above-mentioned technical problem and provide geometry optics demonstration appearance, demonstrated light and followed rectilinear propagation, formed the interesting phenomenon of aureole at the glass thin slice border after reflection, refraction, observed directly perceived, image, lively, taste, help student that can be fine understands geometry optics knowledge.

The utility model provides an above-mentioned technical problem's technical scheme as follows: this geometry optics demonstration appearance includes the base, the fixed two lift posts that are equipped with in interval on the base, the fixed movable plate that is equipped with on the lift post, two slide respectively on the movable plate and be equipped with ruddiness laser pen and green glow laser pen, two the interval is equipped with first support column and second support column between the lift post, be equipped with first circular glass on the first support column and pile, be equipped with the circular glass of second on the second support column and pile.

Has the advantages that: the interesting phenomenon that light is transmitted along a straight line and forms a light ring at the edge of the glass sheet after reflection and refraction is demonstrated, the observation is visual, vivid and interesting, and students can be well helped to understand geometrical and optical knowledge.

Further, the lift post includes hollow first pillar and hollow second pillar, the bottom of first pillar is fixed to be established on the base, the one end of second pillar slides and stretches into in the first pillar, the other end fixed connection of second pillar the movable plate, be equipped with on the lateral wall of first pillar and be used for the locking piece of second pillar position.

The beneficial effect of adopting the further scheme is that: simple structure, can adjust the height of light at will, conveniently make its light level shine on circular glass heap.

Furthermore, the locking piece is a locking handle, and one end of the locking handle extends into the first support column through thread fit and abuts against the second support column.

The beneficial effect of adopting the further scheme is that: the second support is locked by turning the locking handle, so that the height of the light is determined.

Further, the locking piece is a locking screw.

The beneficial effect of adopting the further scheme is that: simple structure, convenient operation, locking is effectual.

Furthermore, a magnet block is embedded at the bottom of the base.

The beneficial effect of adopting the further scheme is that: the adsorption on the laboratory bench is convenient for, avoids causing unexpected collision to influence the demonstration.

Furthermore, the base is made of plastic.

The beneficial effect of adopting the further scheme is that: low cost and portability.

Drawings

Fig. 1 is a schematic structural view of the present invention;

in the drawings, the components represented by the respective reference numerals are listed below:

1. a base; 2. locking the handle; 3. a first support; 4. a second support; 5. moving the plate; 6. a red light laser pen; 7. a first support column; 8. a first circular glass stack; 9. a second support column; 10. a second circular glass stack; 11. green laser pen.

Detailed Description

The principles and features of the present invention are described below in conjunction with the following drawings, the examples given are only intended to illustrate the present invention and are not intended to limit the scope of the present invention.

Example 1

As shown in fig. 1, the present embodiment provides a geometric optics demonstration instrument, which includes a base 1, wherein the base 1 is preferably made of plastic, so that it is portable and convenient to handle. Fixed two lift posts that are equipped with in interval on the base 1, the fixed movable plate 5 that is equipped with on the lift post, two slide respectively on the movable plate 5 and be equipped with ruddiness laser pen 6 and green glow laser pen 11, two the interval is equipped with first support column 7 and second support column 9 between the lift post, be equipped with first circular glass on the first support column 7 and pile 8, be equipped with the circular glass of second on the second support column 9 and pile 10.

The lift post includes hollow first pillar 3 and hollow second pillar 4, the bottom of first pillar 3 is fixed to be established on the base 1, the one end of second pillar 4 slides and stretches into in the first pillar 3, the other end fixed connection of second pillar 4 movable plate 5, be equipped with on the lateral wall of first pillar 3 and be used for the locking piece of second pillar 4 position.

As shown in fig. 1, the locking piece is locking handle 2, the one end of locking handle 2 stretches into through screw-thread fit in the first pillar 3 the butt be in on the second pillar 4, the cover is equipped with the rubber sleeve on the locking handle 2, improves the travelling comfort.

The locking piece is locking screw, and the screw rod end of locking screw locks second pillar 4 with the screw hole screw-thread fit that is equipped with on the first pillar 3, does not draw, and other locking structure of course also can be adopted, and it can to satisfy the function.

The bottom of base 1 inlays and is equipped with the magnet piece, and this device is placed at the workstation of metal material, and the locking of being convenient for prevents to appear accidental collision when the demonstration.

The operation mode is as follows:

the first operation mode is as follows: the red light laser pen 6 is opened to generate red light, the height is adjusted to enable the light to horizontally irradiate the edge of the middle glass sheet of the first circular glass stack 8, and a red light ring can be seen at the moment, because when the laser irradiates the edge of the glass sheet for the first time, a part of light enters the glass, is refracted and then deviates a certain direction to travel along a straight line, when the part of light reaches the edge opposite to the glass sheet, a part of light is reflected again, a part of light is transmitted, the reflected light continues to be reflected and transmitted when reaching the edge again in the glass sheet, the whole edge of the glass sheet has the reflected and transmitted light, and then the light ring is formed at the edge. When the laser pen is adjusted up and down, the red light rings are seen to be changed from small to big and from big to small.

The second operation mode is as follows: the green laser pen 11 is turned on to generate green light, the height is adjusted to enable the light to horizontally irradiate the edge of the middle glass sheet of the second circular glass stack 10, and a green light ring can be seen at the moment, because when the laser irradiates the edge of the glass sheet for the first time, a part of light enters the glass, is refracted and then deviates a certain direction to travel along a straight line, when the part of light reaches the edge opposite to the glass sheet, a part of light is reflected again, a part of light is transmitted, the reflected light continues to be reflected and transmitted when reaching the edge again in the glass sheet, the whole edge of the glass sheet has the reflected and transmitted light, and then the light ring is formed at the edge. When the laser pen is adjusted up and down, the green light rings can be seen to change from big to small and from small to big.

The third operation mode is as follows: one of the glass piles is taken down, two laser pens are opened simultaneously, two bundles of light of the laser pens irradiate on the edge of different glass sheets on the same glass pile respectively, two light rings with different colors can be observed at the moment, the height of the two laser pens is adjusted, and the two light rings can move up and down alternately.

In the description of the present invention, it is to be understood that the terms "center", "length", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "inner", "outer", "circumferential", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the system or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.

In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

The above description is only for the preferred embodiment of the present invention, and should not be construed as limiting the present invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included within the protection scope of the present invention.

Claims (6)

1. A geometric optics demonstrator, comprising:

base (1), fixed two lift posts that are equipped with in interval on base (1), the fixed movable plate (5) that is equipped with, two on the lift post slide respectively on movable plate (5) and be equipped with ruddiness laser pen (6) and green glow laser pen (11), two the interval is equipped with first support column (7) and second support column (9) between the lift post, be equipped with first circular glass on first support column (7) and pile (8), be equipped with the circular glass of second on second support column (9) and pile (10).

2. The geometric optics demonstration instrument according to claim 1, characterized in that the lifting column comprises a hollow first pillar (3) and a hollow second pillar (4), the bottom of the first pillar (3) is fixedly arranged on the base (1), one end of the second pillar (4) is slidably inserted into the first pillar (3), the other end of the second pillar (4) is fixedly connected with the moving plate (5), and a locking piece for locking the position of the second pillar (4) is arranged on the side wall of the first pillar (3).

3. Geometrical optics demonstrator according to claim 2, characterized in that said locking means is a locking handle (2), one end of said locking handle (2) protruding into said first support (3) by screw-fitting against said second support (4).

4. Geometrical optics demonstration apparatus as claimed in claim 2 wherein the locking means is a locking screw.

5. Geometrical optics demonstrator according to any of claims 1 to 4, characterized in that the bottom of said base (1) is embedded with a magnet block.

6. Geometrical optics demonstrator according to any of claims 1 to 4, characterized in that said base (1) is made of plastic.

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