CN205388863U - White principles of laser demonstration appearance - Google Patents
White principles of laser demonstration appearance Download PDFInfo
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- CN205388863U CN205388863U CN201520928707.9U CN201520928707U CN205388863U CN 205388863 U CN205388863 U CN 205388863U CN 201520928707 U CN201520928707 U CN 201520928707U CN 205388863 U CN205388863 U CN 205388863U
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Abstract
The utility model discloses a white principles of laser demonstration appearance belongs to the teaching experiment instrument. In red laser and green laser's light path, set up inclined to one side vibration -damping sheet respectively, through adjusted redness of inclined to one side vibration -damping sheet and green two way laser, through pass through red anti - greenly or reveal the green anti - red dichroic mirror and close and restraint to laser beam all the way, restraint through passing through the red blue dichroic mirror in green reverse side with blue laser, close them and restraint to laser all the way, expand with collimating lens through objective focus in proper order again and restraint, obtain white laser result on the demonstration hawk. The rotatory inclined to one side vibration -damping sheet of this demonstration appearance accessible changes the intensity proportion of redgreenblue laser to obtain white laser. This demonstration appearance scientific and reasonable demonstrate directly perceivedly, and simple structure can demonstrate the formation principle of white laser directly perceivedly, but simultaneously through the colourometry experiment phenomena of the different corresponding different colours of red, green, blue ratio of rotatory inclined to one side vibration -damping sheet ocular demonstration, has richened the content of courses.
Description
Technical field
This utility model relates to a kind of white laser principle demonstration instrument, belongs to a kind of teaching and experiment equipment.
Background technology
Three kinds of laser beams of RGB are closed bundled together just can produce white laser in some strength ratio very high degree of precision.The researcher of the vertical university of State of Arizona, US in 2015 have developed and constituted nano level wafer from semiconducting material by the semiconducting alloy of zinc, cadmium, sulfur and selenium, its different piece produces the laser of different colours when light pulse excitation, part rich in cadmium and selenium produces red laser, part rich in cadmium and sulfur produces green glow, part rich in zinc and sulfur produces blue light, it is achieved thereby that the high accuracy of trichroism laser closes bundle, produce white laser, can be widely applied to illumination and optical communication field.In college course " Principles of Laser " and other relevant teaching processes, generally adopt the method describing in words and illustrating to impart knowledge to one's students, student cannot observe that white laser closes bundle intuitively, the process formed, different laser intensity ratio cannot be put into practice and produce the experiment of different colours laser, student majored in liberal arts is understood to difficulty especially of getting up, if developing a kind of instruments used for education, can the forming process of visual simulation white laser and principle, make student put into practice the experiment of different laser intensity ratio correspondence different colours laser simultaneously, can be very beneficial complement and auxiliary to the content of courses and means.
Summary of the invention
The deficiency that this utility model exists for prior art, it is provided that a kind of white laser principle demonstration instrument, this demonstrator can help it is appreciated that the principle of white laser formation, and the different red, green, blue laser intensity ratio correspondence of practice produces the experiment of different colours laser.
This utility model foregoing invention purpose can be achieved by the following technical programs: provides a kind of white laser principle demonstration instrument, its structure is: in the laser beam light path that red laser semiconductor laser and green laser semiconductor laser send, it is respectively provided with polaroid, redness after polaroid adjusts and green two-way laser, Shu Weiyi road laser is closed by dichroic mirror that is saturating red anti-green or that reveal the green anti-red, then through the blue laser beam sent with blue laser semiconductor laser, by saturating red green anti-blue dichroic mirror, they are closed Shu Weiyi road laser, focus on through object lens successively again and expand with collimating lens, the collimated light beam obtained shows result on hawk.
The operation wavelength of red laser semiconductor laser described in the utility model is 650nm, and the operation wavelength of green laser semiconductor laser is 532nm, and the operation wavelength of blue laser semiconductor laser is 405nm.
The laser beam that red laser semiconductor laser and green laser semiconductor laser send is mutually perpendicular to, described dichroic mirror and light path setting at 45 °.
The blue laser beam that blue laser semiconductor laser sends, vertical with the laser beam closing Shu Weiyi road through dichroic mirror, described saturating red green anti-blue dichroic mirror and light path setting at 45 °.
This utility model places polaroid in the emitting light path of HONGGUANG and green glow, is used for adjusting exiting light beam intensity, thus changing the intensity of redgreenblue laser；
The inventive principle of this utility model foundation is: laser emitting light is line polarized light, by rotating the polaroid arranged in light path, changes polarization direction and can change the intensity of emergent ray polarisation, thus realizing the purpose of the three road laser intensity ratios that adjust；Three road laser, by a piece of red anti-green or reveal the green anti-red dichroic mirror and a piece of red green anti-blue dichroic mirror conjunction bundle, expand a branch of collimated white laser beam with go-no-go of formation then through object lens convergence, collimating lens, are shown on hawk.When red, green, blue trichroism laser intensity ratio adjustment is appropriate, white laser light beam be can be observed.Rotatory polarization sheet, changes the intensity of trichroism laser, and the laser beam of different colours be can be observed.
Effect of the present utility model is in that: use dichroic mirror to close beam optical path, it is achieved the conjunction bundle of RGB three road laser.Saturating red anti-green dichroic mirror makes red laser pass through with high permeability, green laser is made to reflect with high reflectance, saturating red green anti-blue dichroic mirror makes redness and green laser pass through with high permeability, making blue laser reflect with high reflectance, after saturating red green anti-blue dichroic mirror, combiner is swashed on three roads is a road.If using the method that semi-transparent semi-reflecting lens or common beam splitter change light path, each beam splitting element can cause the light energy of input path loss half, uses dichroic mirror to be effectively reduced the loss of light energy.Meanwhile, using hawk display white laser, relative to blank display screen, the display visual impression of hawk dialogue other colors of normal complexion is better.
Accompanying drawing explanation
The structural representation of a kind of white laser principle demonstration instrument that Fig. 1 provides for this utility model embodiment.
In figure: 1, send the semiconductor laser of red laser light beam；2, the semiconductor laser of green laser beam is sent；3, the semiconductor laser of blue laser beams is sent；4, the polaroid of HONGGUANG emitting light path；5, the polaroid in green glow emitting light path；6, saturating red anti-green dichroic mirror；7, saturating red green anti-blue dichroic mirror；8, object lens are converged；9, collimating lens；10 display hawks.
Detailed description of the invention
Below in conjunction with drawings and Examples, technical solutions of the utility model are further elaborated.
Embodiment 1
The present embodiment provides a kind of white laser principle demonstration instrument.
Referring to accompanying drawing 1, the structural representation of the white laser principle demonstration instrument that it provides for the present embodiment, a kind of white laser principle demonstration instrument, operation wavelength respectively 650nm, 532nm and 405nm semiconductor laser 1,2 and 3 send redness, green and blue laser beams, HONGGUANG emitting light path is placed polaroid 4, green glow emitting light path being placed polaroid 5, being used for adjusting exiting light beam intensity, thus changing the intensity of redgreenblue laser.Red laser light beam is propagated from left to right along light path, first pass through a piece of saturating red anti-green dichroic mirror 6 at 45 ° with light path to pass through with high permeability, the direction of propagation is constant, green laser emitting light path is vertical with red laser emitting light path, and green laser closes bundle for an equidirectional road light with red laser light path after being reflected with high reflectance by saturating red anti-green dichroic mirror 6.Red and green laser closes Shu Houjing and crosses a piece of saturating red green anti-blue dichroic mirror 7 at 45 ° with light path, after blue laser is reflected with high reflectance by saturating red green anti-blue dichroic mirror 7, it is a branch of white laser with red green sharp combiner, converge then through object lens 8, collimating lens 9 expands a branch of collimated white laser beam with go-no-go of formation, is shown on hawk 10.
When adopting the demonstrator that this utility model provides to carry out the lecture experiment that white laser produces principle, pass through, change the direction rotating polaroid set in light path, the intensity of emergent ray polarisation can be changed, thus realizing the purpose of the three road laser intensity ratios that adjust.When red, green, blue trichroism laser intensity ratio adjustment is appropriate, white laser light beam be can be observed.Rotatory polarization sheet, changes the intensity of trichroism laser, and the laser beam of different colours be can be observed.This demonstrator simulates forming process and the principle of white laser comparatively intuitively, it is simple to understands, deepens the impression and remember.
Claims (4)
1. a white laser principle demonstration instrument, it is characterized in that: in the laser beam light path that red laser semiconductor laser (1) and green laser semiconductor laser (2) send, it is respectively provided with polaroid (4, 5), redness after polaroid adjusts and green two-way laser, Shu Weiyi road laser is closed by dichroic mirror (6) that is saturating red anti-green or that reveal the green anti-red, then through the blue laser beam sent with blue laser semiconductor laser (3), by saturating red green anti-blue dichroic mirror (7), they are closed Shu Weiyi road laser, focus on through object lens (8) successively again and expand with collimating lens (9), the collimated light beam obtained is in the upper display of hawk (10).
2. a kind of white laser principle demonstration instrument according to claim 1, it is characterized in that: the operation wavelength of described red laser semiconductor laser (1) is 650nm, the operation wavelength of green laser semiconductor laser (2) is 532nm, and the operation wavelength of blue laser semiconductor laser (3) is 405nm.
3. a kind of white laser principle demonstration instrument according to claim 1 and 2, it is characterized in that: the laser beam that red laser semiconductor laser (1) and green laser semiconductor laser (2) send is mutually perpendicular to, described dichroic mirror (6) and light path setting at 45 °.
4. a kind of white laser principle demonstration instrument according to claim 1 and 2, it is characterized in that: the blue laser beam that blue laser semiconductor laser (3) sends, vertical with the laser beam closing Shu Weiyi road through dichroic mirror (6), described saturating red green anti-blue dichroic mirror (7) and light path setting at 45 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928707.9U CN205388863U (en) | 2015-11-21 | 2015-11-21 | White principles of laser demonstration appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520928707.9U CN205388863U (en) | 2015-11-21 | 2015-11-21 | White principles of laser demonstration appearance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205388863U true CN205388863U (en) | 2016-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520928707.9U Expired - Fee Related CN205388863U (en) | 2015-11-21 | 2015-11-21 | White principles of laser demonstration appearance |
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| CN (1) | CN205388863U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321412A (en) * | 2015-11-21 | 2016-02-10 | 苏州科技学院 | Demonstration method and device for white laser generation principle |
-
2015
- 2015-11-21 CN CN201520928707.9U patent/CN205388863U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105321412A (en) * | 2015-11-21 | 2016-02-10 | 苏州科技学院 | Demonstration method and device for white laser generation principle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160720 Termination date: 20161121 |
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| CF01 | Termination of patent right due to non-payment of annual fee |