CN201622750U - Light composite demonstration device - Google Patents
Light composite demonstration device Download PDFInfo
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- CN201622750U CN201622750U CN2010201645133U CN201020164513U CN201622750U CN 201622750 U CN201622750 U CN 201622750U CN 2010201645133 U CN2010201645133 U CN 2010201645133U CN 201020164513 U CN201020164513 U CN 201020164513U CN 201622750 U CN201622750 U CN 201622750U
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- imaging
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Abstract
The utility model relates to a light composite demonstration device, which belongs to the technique field of junior high school physical teaching apparatus. The technical project of the utility model is that the composite demonstration device includes a box, a convex lens and three bulbs of red, yellow and green arranged in the box, the left side face of the box is provided with a circular hole, an imaging barrel is movably inserted into the left side face of the box vertically through the circular hole, the imaging barrel has a cylindrical structure, a semitransparent imaging screen is arranged on one end of the imaging barrel, a lens base is arranged on the external side of the box top part, the convex lens is slidingly connected with the lens base through a transversal through groove arranged on the top face of the box, and the three bulbs are arranged on the right inner side of the box. The technical project has advantages of simple structure and low cost, may be operated by teachers and students, demonstration is vivid and iconic, and students are easy to understand.
Description
Technical field
The utility model belongs to junior middle school physics teaching equipment technical field, relates in particular to a kind of compound demonstration device of light.
Background technology
In the physics experiment teaching of junior physics " optics " part, various polychromatic lights all mix mutually with three kinds of colors of RGB (being three primary colours) and obtain, therefore, as long as this three kinds of coloured light have been arranged, it is mixed by different proportion, can obtain various deep or light different coloured light.For example: red+green=yellow, red+blue=purple, green+blueness=cyan when RGB three mixture of colours, also can obtain white.But do not have suitable optics demonstration teaching aid in the teaching, the student is difficult to understand polychromatic light with imagination and how obtains, and only relies on and memorizes mechanically, grasp that can't be real.
Summary of the invention
The purpose of this utility model is, overcomes the deficiencies in the prior art, and a kind of compound demonstration device of light is provided, and this technical scheme is simple in structure, and cost is low, and Faculty and Students all can make, and demonstrates vividly, and the student understands easily.
For solving the problems of the technologies described above, the technical solution of the utility model is: the compound demonstration device of light, comprise casing, be positioned at the convex lens of casing and red, yellow, green three bulbs, on the casing left surface, circular hole is arranged, the imaging tube is by left surface vertical movable peg graft of circular hole with casing, described imaging tube is the right cylinder tubular structure, in the end of imaging tube translucent imaging screen is arranged, described casing top outer has microscope base, convex lens are slidingly connected by horizontal groove and the microscope base on the box top, red, yellow, green three bulbs are concentrated and are positioned on the right side inwall of casing, and the center of the center position of three bulbs and the center of lens and imaging screen point-blank.Cabinet wall described in the utility model is a black, and imaging screen is tracing paper.
Show single colored light (showing ruddiness or green glow or blue light): connect a kind of power supply of color bulb, on display screen, just demonstrate redness, green or blue respectively.Regulating slide rheostat can make luminance brightness of all kinds change.
Show the mixing of two kinds of different color lights: the power supply of connecting red and starboard sidelight: green bulb, regulate the position of convex lens or imaging screen, at this moment demonstrate two discrete hot spots on the screen, red and green, the position of continuing mobile lens can make two hot spots overlap, and observes the color of lap.By mixing of identical step demonstration green glow and blue light or mixing of ruddiness and blue light.
Show the mixing of three kinds of different color lights: three bulb powers are all connected.Regulate the position of convex lens simultaneously, make to demonstrate three hot spots that separate on the imaging screen, be respectively red, green and blue, mobile in the opposite direction convex lens can make three hot spots overlapped, existing two kinds of coloured light overlapping has the overlapping of three kinds of coloured light again, and central part can form white.
The beneficial effects of the utility model are: by this demonstration device, can make the student see that intuitively various polychromatic lights are all mixed mutually by three kinds of colors of RGB (being three primary colours) and obtain, understand memory easily.
Description of drawings
Fig. 1 is a structural representation of the present utility model,
Among the figure: 1-groove, 2-microscope base, 3-convex lens, 4-casing, 5-bulb, 6-imaging tube, 7-imaging screen.
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail:
Embodiment
According to shown in Figure 1, the compound demonstration device of light comprises 44 * 31 * 20 centimetres
3 Wooden casing 4, be positioned at the convex lens 3 of casing 4 and red, yellow, green three bulbs 5, bulb 5 is 3.8 volts, convex lens 3 focal lengths are about 20 centimetres, it is 9 centimetres circular hole that diameter is arranged on casing 4 left surfaces, external diameter is 9 centimetres, length is that 25 centimetres imaging tube 6 is pegged graft with the vertical activity of left surface of casing 4 by circular hole, described imaging tube 6 is the right cylinder tubular structure, the imaging screen of being made by translucent tracing paper 7 is arranged in the end of imaging tube 6, described casing 4 top outer have microscope base 2, convex lens 3 are slidingly connected by horizontal groove on casing 4 end faces 1 and microscope base 2, so that regulate the position of lens, make the hot spot (not being the picture of filament) that presents even illumination on the screen.Red, yellow, green three bulbs 5 are concentrated and are positioned on the right side inwall of casing 4, the center of the center position of three bulbs 5 and convex lens 3 and the center of imaging screen 7 point-blank, casing 4 inwalls described in the utility model are black.
Claims (3)
1. the compound demonstration device of light, it is characterized in that: comprise casing, be positioned at the convex lens of casing and red, yellow, green three bulbs, on the casing left surface, circular hole is arranged, the imaging tube is by left surface vertical movable peg graft of circular hole with casing, described imaging tube is the right cylinder tubular structure, in the end of imaging tube translucent imaging screen is arranged, described casing top outer has microscope base, convex lens are slidingly connected by horizontal groove and the microscope base on the box top, red, yellow, green three bulbs are concentrated and are positioned on the right side inwall of casing, and the center of the center position of three bulbs and the center of lens and imaging screen point-blank.
2. the compound demonstration device of light according to claim 1, it is characterized in that: described cabinet wall is a black.
3. the compound demonstration device of light according to claim 1 and 2, it is characterized in that: described imaging screen is tracing paper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201645133U CN201622750U (en) | 2010-04-14 | 2010-04-14 | Light composite demonstration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201645133U CN201622750U (en) | 2010-04-14 | 2010-04-14 | Light composite demonstration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201622750U true CN201622750U (en) | 2010-11-03 |
Family
ID=43026209
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201645133U Expired - Fee Related CN201622750U (en) | 2010-04-14 | 2010-04-14 | Light composite demonstration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201622750U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894867A (en) * | 2015-01-13 | 2016-08-24 | 郭茂清 | Three-primary color teaching projector |
-
2010
- 2010-04-14 CN CN2010201645133U patent/CN201622750U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105894867A (en) * | 2015-01-13 | 2016-08-24 | 郭茂清 | Three-primary color teaching projector |
| CN105894867B (en) * | 2015-01-13 | 2018-07-13 | 郭茂清 | Three primary colors educational projector |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20110414 |