CN211044762U - Michelson interferometer convenient to adjust - Google Patents
Michelson interferometer convenient to adjust Download PDFInfo
- Publication number
- CN211044762U CN211044762U CN201922131887.9U CN201922131887U CN211044762U CN 211044762 U CN211044762 U CN 211044762U CN 201922131887 U CN201922131887 U CN 201922131887U CN 211044762 U CN211044762 U CN 211044762U
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- protractor
- fixed
- laser
- light splitting
- reflector mirror
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Abstract
The utility model discloses a convenient michelson interferometer of adjusting, including fixed speculum, portable speculum, beam splitter, compensating plate, observation screen, beam splitter rear surface has plated semi-transparent semi-reflective membrane, still includes miniature laser first, miniature laser second, protractor. The micro laser device A is fixed at the center of the top of the fixed reflector mirror frame, and the vertical fixed reflector mirror face emits laser forwards. The miniature laser B is fixed at the center of the top of the movable reflector mirror frame, and the vertical movable reflector mirror face emits laser forwards. The protractor is horizontally attached to the top of the light splitting plate, the central point of the protractor is located at the middle point of the long edge of the rear surface of the light splitting plate, the 45-degree angle scale line of the protractor coincides with the rear surface of the light splitting plate, and the first miniature laser, the second miniature laser and the protractor are equal in height. The utility model discloses help the regulation of michelson interferometer, make accommodation process directly perceived, scientific, be favorable to improving experimental efficiency.
Description
Technical Field
The utility model relates to an optical experiment instrument specifically is a convenient michelson interferometer of adjusting.
Background
The michelson interferometer is a common optical experimental instrument and comprises a fixed reflector, a movable reflector, a light splitting plate, a compensation plate and an observation screen, wherein the fixed reflector and the movable reflector are perpendicular to each other, the light splitting plate and the compensation plate are parallel to each other and form an included angle of 45 degrees with the fixed reflector and the movable reflector, and the observation screen is used for bearing interference patterns. The rear surface of the light splitting plate is plated with a semi-transparent semi-reflective film which can divide incident light into two beams of transmission and reflection light, the two beams of light respectively irradiate the fixed reflector and the movable reflector, and meet after being reflected by the fixed reflector and the movable reflector, and interference fringes are presented on the observation screen. The compensating plate is used for equalizing the optical paths of the two beams of coherent light in the glass medium. Before the Michelson interferometer is used, the fixed reflector and the movable reflector need to be adjusted to be strictly vertical, and the fixed reflector, the movable reflector and the light splitting plate form 45-degree included angles. The interference pattern cannot be presented with slight deviations in the adjustment process. Students often spend a lot of time adjusting the instrument when using michelson interferometers.
Disclosure of Invention
The utility model discloses a solve the regulation difficulty of michelson interferometer, develop a convenient michelson interferometer of adjusting.
In order to solve the technical problem, the utility model discloses a following technical scheme: a Michelson interferometer convenient to adjust comprises a fixed reflector, a movable reflector, a light splitting plate, a compensation plate and an observation screen, wherein the fixed reflector and the movable reflector are perpendicular to each other; the laser device comprises a fixed reflector mirror frame, a micro laser device A, a micro laser device B and a protractor, wherein the micro laser device A is fixed in the center of the top of the fixed reflector mirror frame, and the fixed reflector mirror surface is vertical to the fixed reflector mirror surface and emits laser forwards; the miniature laser B is fixed at the center of the top of the movable reflector mirror frame, and the vertical movable reflector mirror surface emits laser forwards; the protractor is horizontally attached to the top of the light splitting plate, the central point of the protractor is positioned at the middle point of the long edge of the rear surface of the light splitting plate, and the 45-degree angle scale line of the protractor is superposed with the rear surface of the light splitting plate; the first micro laser, the second micro laser, the protractor and the like are equal in height.
The utility model discloses utilize the laser ray that miniature laser instrument first, miniature laser instrument second sent, the contained angle of fixed speculum, portable speculum and beam splitter is adjusted to the cooperation protractor, makes fixed speculum, portable speculum and beam splitter all become 45 degrees contained angles to be favorable to satisfying the michelson interferometer and producing the basic condition of the interference style, establish the basis for follow-up further fine setting. The utility model discloses a detailed description of the use sees embodiment. The utility model discloses help avoiding the blind regulation of michelson interferometer, make accommodation process directly perceived, scientific, be favorable to improving experimental efficiency.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
Fig. 1 is a schematic view of the present invention.
Fig. 2 is a schematic front view of a fixed mirror.
In the figure: 1. the device comprises a fixed reflector, 11 a mirror frame, 12 a plane mirror, 2 a movable reflector, 3 a light splitting plate, 31 a semi-transparent and semi-reflective film, 4 a compensation plate, 5 a micro laser A, 6 a micro laser B, 7 a protractor, 8 a light source and 9 an observation screen.
Detailed Description
As shown in fig. 1, the fixed reflector 1 and the movable reflector 2 are disposed in the mutually perpendicular directions, the beam splitter 3 is disposed between the movable reflector 2 and the observation screen 9, the beam splitter 3, the movable reflector 2 and the fixed reflector 1 both form an included angle of 45 degrees, the compensation plate 4 is disposed between the beam splitter 3 and the fixed reflector 1, the compensation plate 4 is parallel to the beam splitter 3, the rear surface of the beam splitter 3 is plated with a semi-transparent and semi-reflective film 31, and the light source 8 is disposed on the left side of the beam splitter 3 facing the fixed reflector 1.
As shown in fig. 1 and 2, the plane mirror 12 is embedded in the middle of the surface of the mirror frame 11, the micro laser device 5 is fixed in the center of the top of the mirror frame 11 of the fixed reflector 1, and the micro laser device 5 emits laser light forward perpendicular to the surface of the fixed reflector 1. The miniature laser B6 is fixed at the center of the top of the lens frame of the movable reflector 2, and the miniature laser B6 emits laser forward perpendicular to the lens surface of the movable reflector 2. The protractor 7 is horizontally attached to the top of the light splitting plate 3, the central point O of the protractor 7 is arranged at the middle point of a long edge on the rear surface of the light splitting plate 3 plated with the semi-transparent and semi-reflective film 31, and the 45-degree angle scale line on the protractor 7 coincides with the rear surface of the light splitting plate. The micro laser A5, the micro laser B6 and the protractor 7 are equal in height.
The utility model discloses when the in-service use, adjust the gradient adjusting screw at the 1 back of fixed mirror earlier, the laser line that makes first 5 of miniature laser instrument send is along the zero degree angle scale mark directive protractor 7's central point O of protractor 7. Then, the inclination adjusting screw on the back of the movable reflector 2 is adjusted to enable the laser line emitted by the miniature laser B6 to be shot to the protractor 7 along the 90-degree angle scale line of the protractor 7, and the laser line emitted by the miniature laser A5 is intersected with the central point O of the protractor 7. At this time, the fixed reflector 1, the movable reflector 2 and the spectroscope 3 form an included angle of 45 degrees. And then, the micro laser A5 and the micro laser B6 are closed, the light source 8 is turned on, the emitting direction of the light source 8 is adjusted, the light source 8 emits to the central point O of the protractor 7, and the interference pattern can be displayed on the observation screen 9 by slightly fine adjustment.
Claims (1)
1. A Michelson interferometer convenient to adjust comprises a fixed reflector, a movable reflector, a light splitting plate, a compensation plate and an observation screen, wherein the fixed reflector and the movable reflector are perpendicular to each other; the method is characterized in that: the laser device comprises a fixed reflector mirror frame, a micro laser device A, a micro laser device B and a protractor, wherein the micro laser device A is fixed in the center of the top of the fixed reflector mirror frame, and the fixed reflector mirror surface is vertical to the fixed reflector mirror surface and emits laser forwards; the miniature laser B is fixed at the center of the top of the movable reflector mirror frame, and the vertical movable reflector mirror surface emits laser forwards; the protractor is horizontally attached to the top of the light splitting plate, the central point of the protractor is positioned at the middle point of the long edge of the rear surface of the light splitting plate, and the 45-degree angle scale line of the protractor is superposed with the rear surface of the light splitting plate; the first micro laser, the second micro laser, the protractor and the like are equal in height.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922131887.9U CN211044762U (en) | 2019-12-03 | 2019-12-03 | Michelson interferometer convenient to adjust |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922131887.9U CN211044762U (en) | 2019-12-03 | 2019-12-03 | Michelson interferometer convenient to adjust |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211044762U true CN211044762U (en) | 2020-07-17 |
Family
ID=71535341
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922131887.9U Expired - Fee Related CN211044762U (en) | 2019-12-03 | 2019-12-03 | Michelson interferometer convenient to adjust |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211044762U (en) |
-
2019
- 2019-12-03 CN CN201922131887.9U patent/CN211044762U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200717 Termination date: 20211203 |