CN203325309U - Light-guide fiber model - Google Patents
Light-guide fiber model Download PDFInfo
- Publication number
- CN203325309U CN203325309U CN2013204445838U CN201320444583U CN203325309U CN 203325309 U CN203325309 U CN 203325309U CN 2013204445838 U CN2013204445838 U CN 2013204445838U CN 201320444583 U CN201320444583 U CN 201320444583U CN 203325309 U CN203325309 U CN 203325309U
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- light
- lamp guide
- model
- guide bar
- fiber model
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Abstract
The objective of the utility model is to provide a light-guide fiber model which is simple in structure and convenient to use. The optical principle of a light-guide fiber can be directly demonstrated via switching on a laser emitter directly. Meanwhile, eyesight of an observer is ensured not to be damaged so that use is safer. In order to achieve the mentioned effects, the light-guide fiber model comprises a laser generator and a light-guide bar which is a transparent light-guide bar. The periphery of the light-guide bar is coated with a high density polyethylene layer. The left side and the right side of the light-guide bar are adhered with black tapes. As the mentioned technical scheme is adopted, the periphery of the light-guide bar is coated with the high density polyethylene layer, and the left side and the right side of the light-guide bar are adhered with the black tapes so that loss in the process of refraction is further reduced, and a situation, which causes serious risks to the observer, that the light ray part directly penetrates through edges and may directly penetrate into eyes of the observer is avoided.
Description
Technical field
The utility model relates to a kind of teaching demonstration equipment, relates in particular to a kind of light transmitting fiber model.
Background technology
Can relate to optical knowledge in middle school physical curriculum.In order to allow students intuitively recognize refraction, the reflection texts of light, need to adopt optical teaching aid to be demonstrated.Prior art Patent number, in the utility model of 201320065404.X " teaching light reflection demonstrating device ", disclosing a kind of teaching light reflection demonstrating device, relates to teaching demonstration device.The light path imaging plate vertically is fixedly connected on above the counterweight pedestal, and transparent tank is fixed in light path imaging plate front side; Described transparent tank is transparent cell body, and transparent tank left side is semi-cylindrical, and the cylinder axis of semi-cylindrical is vertical with the light path imaging plate; Annular solid is positioned at transparent tank lower-left side, annular solid is fixedly connected on a plate body in light path imaging plate left side, laser emitter is towards the bottom of the semi-cylindrical of transparent tank, the tail end of laser emitter is arranged in annular solid, be connected with a lock-screw on annular solid, lock-screw the inner withstands on the laser emitter surface.The device use cost that this utility model has solved existing teaching demonstration light total reflection is higher, and inconvenient problem with use.This utility model can be demonstrated light the phenomenon of total reflection repeatedly occurs in water, and this is fibre-optic optical principle namely, makes the student easily understand.
But the actual use of such teaching aid is very inconvenient, needs water filling in tank, easily pollute the teaching desktop.If in the water adopted, impurity is arranged, also can affect experiment effect.The more important thing is, such experimental facilities edge does not have safeguard procedures, and laser still has part and passes from edge part in refracting process, if now the observer just in time looks at this light source straight, likely eyes is damaged.
The utility model content
The purpose of this utility model is to provide a kind of light transmitting fiber model, simple in structure, easy to use, directly connects generating laser and just directly can demonstrate fibre-optic optical principle.Guarantee can not damage observer's eyesight simultaneously, use safer.
For reaching described effect, the utility model light transmitting fiber model, comprise laser generator and lamp guide, and described lamp guide is transparent light-guiding rod, and described lamp guide surrounding is coated with high-density polyethylene layer, and the black adhesive plaster is also posted in the described lamp guide left and right sides.
Preferably, described lamp guide is strip.Such structure fabrication is convenient, the effect reflected in the plane for demonstrating light.
Preferably, described lamp guide is S shape.Such structure is for demonstrating the reflecting effect of light on curved surface.
Preferably, described lamp guide one end is smooth end face, and the other end is coarse end face.Guarantee that like this end is the incident end, incident is held level with both hands and is wholely guaranteed that light incident loss is little.The other end is exit end, and rough surface increases the light scattering effect, avoids light beam directly to get making the observer look at straight causing injury.
Preferably, also comprise the experiment base plate, described experiment base plate is provided with the fixedly reference frame of lamp guide, and described reference frame surrounding also is provided with the incident angle scale.Can facilitate like this user to determine incident angle, observe the reflecting effect of optimum position.
Owing to having adopted described technical scheme, the utility model is coated with high-density polyethylene layer by described lamp guide surrounding, the black adhesive plaster is also posted in the described lamp guide left and right sides, the loss of so further minimizing in refracting process, also avoid light portion directly through edge, likely directly injected the risk that the observer is serious.
The accompanying drawing explanation
Below in conjunction with accompanying drawing, the utility model is described in further detail:
The one-piece construction schematic diagram that Fig. 1 is the utility model light transmitting fiber model.
The lamp guide cut-open view that Fig. 2 is the utility model light transmitting fiber model.
The lamp guide one-piece construction schematic diagram that Fig. 3 is the utility model light transmitting fiber model.
Embodiment
As shown in Figure 1 and Figure 2, the light transmitting fiber model, comprise laser generator 1 and lamp guide 2, and described lamp guide 2 is transparent light-guiding rod, and described lamp guide 2 surroundings are coated with high-density polyethylene layer 21, and black adhesive plaster 22 is also posted in described lamp guide 2 left and right sides.
Described lamp guide 2 is strip or S shape.Light transmits in light transmitting fiber, and it is a transmission body that the density ratio air is much larger, thus light can not overflow therein, only can directly advance or be rebuffed after continues directly to advance after producing total reflection, damage Expendable is very low.Improve the reflecting effect of light by high-density polyethylene layer 21, and black adhesive plaster 22 can be avoided the sidewall of part light penetration lamp guide 2.Described lamp guide 2 one ends are smooth end face, and the other end is coarse end face.Two ends are respectively as incident end and exit end like this.
It is also very convenient that the utility model is used, and left hand is held lamp guide 2, and the right hand is held laser generator 1, allows in the end section of laser by lamp guide and inject, and observes its travel track.
For convenient, use, the utility model also comprises experiment base plate 3, and described experiment base plate 3 is provided with the fixedly reference frame of lamp guide 2, and described reference frame surrounding also is provided with the incident angle scale.The firing angle anale settting scale is 45 degree, and the special angle such as 60 degree, so just can inject at specified angle, and observing effect is better.
The foregoing is only specific embodiment of the utility model, but architectural feature of the present utility model is not limited to this, any those skilled in the art is in field of the present utility model, and the variation of doing or modification all are encompassed among the scope of the claims of the present utility model.
Claims (5)
1. light transmitting fiber model, comprise laser generator (1) and lamp guide (2), it is characterized in that: described lamp guide (2) is transparent light-guiding rod, and described lamp guide (2) surrounding is coated with high-density polyethylene layer (21), and black adhesive plaster (22) is also posted in described lamp guide (2) left and right sides.
2. light transmitting fiber model as claimed in claim 1, it is characterized in that: described lamp guide (2) is strip.
3. light transmitting fiber model as claimed in claim 1 is characterized in that: described lamp guide (2) is S shape.
4. light transmitting fiber model as claimed in claim 2 or claim 3, it is characterized in that: described lamp guide (2) one ends are smooth end face, and the other end is coarse end face.
5. light transmitting fiber model as claimed in claim 1 is characterized in that: also comprise experiment base plate (3), described experiment base plate (3) is provided with the fixedly reference frame of lamp guide (2), and described reference frame surrounding also is provided with the incident angle scale.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204445838U CN203325309U (en) | 2013-07-23 | 2013-07-23 | Light-guide fiber model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204445838U CN203325309U (en) | 2013-07-23 | 2013-07-23 | Light-guide fiber model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203325309U true CN203325309U (en) | 2013-12-04 |
Family
ID=49664626
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204445838U Expired - Fee Related CN203325309U (en) | 2013-07-23 | 2013-07-23 | Light-guide fiber model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203325309U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345876A (en) * | 2013-07-23 | 2013-10-09 | 湖州文思必得科教仪器有限公司 | Optical fiber model |
| CN104732854A (en) * | 2015-03-16 | 2015-06-24 | 陕西师范大学 | Demonstration device for simulating optical fiber numerical apertures and experiment demonstration method |
-
2013
- 2013-07-23 CN CN2013204445838U patent/CN203325309U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103345876A (en) * | 2013-07-23 | 2013-10-09 | 湖州文思必得科教仪器有限公司 | Optical fiber model |
| CN104732854A (en) * | 2015-03-16 | 2015-06-24 | 陕西师范大学 | Demonstration device for simulating optical fiber numerical apertures and experiment demonstration method |
| CN104732854B (en) * | 2015-03-16 | 2017-01-25 | 陕西师范大学 | Demonstration device for simulating optical fiber numerical apertures and experiment demonstration method |
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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: 20131204 Termination date: 20140723 |
|
| EXPY | Termination of patent right or utility model |