CN200941260Y - Synthetic experimental device for trichromatic colours - Google Patents
Synthetic experimental device for trichromatic colours Download PDFInfo
- Publication number
- CN200941260Y CN200941260Y CN 200620075862 CN200620075862U CN200941260Y CN 200941260 Y CN200941260 Y CN 200941260Y CN 200620075862 CN200620075862 CN 200620075862 CN 200620075862 U CN200620075862 U CN 200620075862U CN 200941260 Y CN200941260 Y CN 200941260Y
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- primary colors
- compound experiment
- lens barrel
- projection screen
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Abstract
An experimental instrument of trichroism synthesis belongs to an experiment instrument for physics teaching which is used for showing the synthesis of colors. By regulating respectively the primary colors of red, green and blue, different synthetic colors can be formed in order to deepen the understanding of students about the colors and the synthesis phenomena. According to the technical plan of the utility model, the inside of the shell is provided with a mirror block which is provided with three drawtubes; every front end of the drawtubes is respectively provided with projection lens, at every back end of which is provided respectively with a light emitting diode; the fronts of the shell and drawtubes are provided with a projection screen. The utility model can meet the need of students for grouping experiment.
Description
Technical field
The utility model belongs to a kind of physics teaching experiment instrument, is used to demonstrate the synthetic of color.Can form various secondary colour by regulating the proportioning of red green blue tricolor respectively, thereby deepen the understanding of student color and synthetic phenomenon thereof.
Background technology
Existing like product adopts white light source to form homogeneous beam by color filter mostly, forms the three primary colors hot spot that overlaps by projection on screen at a distance.Usually volume is bigger, and price is higher, and needs external power supply during work, is mainly used in teacher's class demonstration.Present education ideas is encouraged students'ability for practice and independent thinking ability, and the proportion of student experiment in group increases greatly, and above-mentioned instrument can not satisfy this requirement.Though the design of some miniaturizations has reduced the instrument volume by various means, or needs external power supply, perhaps the light source heating is bigger, perhaps so adopts the front projection mode that environment for use is had relatively high expectations, and all can not well satisfy the requirement of student experiment in group.
Summary of the invention
The utility model is to provide a kind of three primary colors compound experiment device, to satisfy the needs of student experiment in group.
The technical scheme that provides according to the utility model, microscope base is installed in casing, 3 lens barrels are installed on microscope base, projection objective is installed respectively at the front end of each lens barrel, rear end at each lens barrel is installed light emitting diode respectively, on casing, the place ahead of lens barrel installs projection screen.
Projection screen is combined by collimation field lens and diffuse transmission screen, and the collimation field lens is positioned at the side in the face of lens barrel.It is skewed that projection screen is, and its upper end is to the lopsidedness of lens barrel, and with the plane parallel of projection objective.Casing is closed, by be positioned at top top board, be positioned at both sides two blocks of side plates, be positioned at the header board of front, the base plate that is positioned at the back plate of back and is positioned at the bottom surface is formed, microscope base, lens barrel, projection objective and light emitting diode all are positioned at the casing of sealing, projection screen be positioned at header board above, and constitute the previous section of casing with header board.
The top board of casing forwards extends, and stretches out projection screen, forms the light shield of projection screen.3 brightness regulation buttons are installed on the header board of casing, and each brightness regulation button is corresponding to a light emitting diode.On the header board of casing, power switch is installed.On casing, be provided for placing the battery compartment of battery.The binding post that is used to connect external power supply is installed on casing.
The utility model has the advantages that: 1, adopt superhigh brightness LED to make light source, structure is small and exquisite, low price, monochromaticity is good, the light source heating is little, do not need external power supply.The design of employing lamp optical system, hot spot is even, clear.2, adopt the back projection mode, directly on the screen of instrument, observe, easy to operate, require lower to environment for use.3, the diffuse transmission screen is gone up to add the collimation field lens, has eliminated the solar effect of picture, and the three primary colors hot spot is evenly bright.4, can regulate three primary colors brightness respectively by light-control knob, three primary colors light-control knob and screen place homonymy, and be easy to operate directly perceived.5, instrument both can use internal battery, can insert the laboratory standard power supply by binding post again, had improved the suitable type of instrument.
Description of drawings
Fig. 1 is a structural drawing of the present utility model.
Fig. 2 is an outside drawing of the present utility model.
Fig. 3 is a wiring diagram of the present utility model.
Embodiment
As shown in the figure: microscope base 1 is installed in casing 5,3 lens barrels 10 are installed on microscope base 1, the projection objective 2 that designs according to bright system requirements is installed respectively at the front end of each lens barrel 10, install respectively in the rear end of each lens barrel 10 and can send three kinds of monochromatic light emitting diodes of red, green, blue, on casing 5, the place ahead of lens barrel 10 installs projection screen.The exiting surface of light emitting diode is projected to the screen place clearly, forms the red, green, blue hot spot of mutual juxtaposition.
Projection screen is combined by collimation field lens 3 and diffuse transmission screen 4, and collimation field lens 3 is positioned at the side in the face of lens barrel 10.Guarantee that emergent light converges towards observer's direction, observe brightness and eliminate solar effect to improve.
It is skewed that projection screen is, and its upper end is to the lopsidedness of lens barrel 10, and with the plane parallel of projection objective 2.This setting that slightly tilts, make watch more comfortable.
The top board 13 of casing 5 forwards extends, and stretches out projection screen, form the light shield 11 of projection screen, has alleviated the possibility that surround lighting direct projection screen influences observing effect.
3 brightness regulation buttons 7 of red green blue tricolor are installed on the header board 12 of casing 5, each brightness regulation button 7 is corresponding to a light emitting diode, and power switch 6, can when observing, adjust respectively trichromatic brightness easily, explore each former colour brightness change to the influence of quality.
On casing 5, be provided for placing the battery compartment 8 of battery.In battery compartment 8, can place battery,, instrument can be used at any time anywhere, be fit to various teaching occasionses for instrument provides the energy, and safe.For adapting to the different experiment condition of all kinds of schools, instrument is also installed the binding post 9 that is used to connect external power supply simultaneously on casing 5, is used for being connected with standard education experiment power supply such as standard cell box.
D1 among Fig. 3, D2, D3 are respectively and can send three kinds of monochromatic 3 light emitting diodes of red, green, blue, adjustable potentiometer PR1, PR2, PR3 are respectively 3 brightness regulation buttons 7, SW is the power switch 6 among Fig. 2, R1～6 are resistance, VD1 and VD2 are the pressure limiting diode, J1 is a ship type switch, and 3 contacts 1,2,3 are arranged.
These circuit theory diagrams are as long as be made up of resistance, adjustable potentiometer, pressure limiting diode and light emitting diode.Change the light and shade of light emitting diode D1, D2, D3 by adjusting adjustable potentiometer PR1, PR2 and PR3.
Two kinds of power supplys are arranged inside and outside the three primary colors compositor, 4.5V and 6V, 4.5V belongs to internal electric source, 6V belongs to external power source, and the ship type switch J1 by other setting switches, and the inner 6V of circuit board is to 4.5V, and a total power switch SW is arranged, realize by two pressure limiting diode VD1 and VD2.
According to each running parameter of light emitting diode, the working current of D1 green≤4V, D2 blueness≤4V, D3 redness≤2.5V all could be luminous greater than 10mA.Come pressure to satisfy above-mentioned requirements by resistance R 1～R6, and leave certain surplus, the luminescence efficiency that guarantees light emitting diode is not burnt again than higher, regulates the working current that adjustable potentiometer PR1, PR2, PR3 change 3 light emitting diode D1, D2, D3 two ends respectively then.
In sum, the utility model unique design and technical characterictic thereof are portability, ease for use, security, environmental suitability and good observing effect and the market adaptability that product brings, and make product can well adapt to the student and do it yourself to carry out the requirement that the three primary colors synthetic effect is probed into.
Claims (9)
1, three primary colors compound experiment device, it is characterized in that: microscope base (1) is installed in casing (5), go up installation 3 lens barrels (10) at microscope base (1), at the front end of each lens barrel (10) projection objective (2) is installed respectively, rear end at each lens barrel (10) is installed light emitting diode respectively, and projection screen is installed in the place ahead last at casing (5), lens barrel (10).
2, three primary colors compound experiment device as claimed in claim 1 is characterized in that: projection screen is combined by collimation field lens (3) and diffuse transmission screen (4), and collimation field lens (3) is positioned at the side in the face of lens barrel (10).
3, three primary colors compound experiment device as claimed in claim 1, it is characterized in that: projection screen is skewed, its upper end is to the lopsidedness of lens barrel (10), and with the plane parallel of projection objective (2).
4, three primary colors compound experiment device as claimed in claim 1, it is characterized in that: casing (5) is closed, by be positioned at top top board (13), be positioned at both sides two blocks of side plates, be positioned at the header board (12) of front, the base plate (15) that is positioned at the back plate (14) of back and is positioned at the bottom surface is formed, microscope base (1), lens barrel (10), projection objective (2) and light emitting diode all are positioned at the casing (5) of sealing, projection screen be positioned at header board (12) above, and constitute the previous section of casing (5) with header board (12).
5, as claim 1 or 4 described three primary colors compound experiment devices, it is characterized in that: the top board (13) of casing (5) forwards extends, and stretches out projection screen, forms the light shield (11) of projection screen.
6, as claim 1 or 4 described three primary colors compound experiment devices, it is characterized in that: go up at the header board (12) of casing (5) 3 brightness regulation buttons (7) are installed, each brightness regulation button (7) is corresponding to a light emitting diode.
7, as claim 1 or 4 described three primary colors compound experiment devices, it is characterized in that: go up at the header board (12) of casing (5) power switch (6) is installed.
8, three primary colors compound experiment device as claimed in claim 1 is characterized in that: the battery compartment (8) that is provided for placing battery on casing (5).
9, three primary colors compound experiment device as claimed in claim 1 is characterized in that: go up at casing (5) binding post (9) that is used to connect external power supply is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620075862 CN200941260Y (en) | 2006-09-01 | 2006-09-01 | Synthetic experimental device for trichromatic colours |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620075862 CN200941260Y (en) | 2006-09-01 | 2006-09-01 | Synthetic experimental device for trichromatic colours |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200941260Y true CN200941260Y (en) | 2007-08-29 |
Family
ID=38747437
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620075862 Expired - Lifetime CN200941260Y (en) | 2006-09-01 | 2006-09-01 | Synthetic experimental device for trichromatic colours |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200941260Y (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 |
-
2006
- 2006-09-01 CN CN 200620075862 patent/CN200941260Y/en not_active Expired - Lifetime
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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070829 |
|
| EXPY | Termination of patent right or utility model |