CN206685026U - Entrance pupil emergent pupil conjugate relation demonstrator - Google Patents
Entrance pupil emergent pupil conjugate relation demonstrator Download PDFInfo
- Publication number
- CN206685026U CN206685026U CN201720132883.0U CN201720132883U CN206685026U CN 206685026 U CN206685026 U CN 206685026U CN 201720132883 U CN201720132883 U CN 201720132883U CN 206685026 U CN206685026 U CN 206685026U
- Authority
- CN
- China
- Prior art keywords
- pupil
- blank
- plane mirror
- emergent
- entrance pupil
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Landscapes
- Microscoopes, Condenser (AREA)
Abstract
The utility model discloses a kind of entrance pupil emergent pupil conjugate relation demonstrator.The center of plane mirror and blank are placed in 4fThe image conjugate position of optical system, respectively to should optical system entrance pupil and exit pupil position.The collimated laser beam that can make different incidence angles around central rotation plane mirror enters 4f systems, and emergent light spot can be observed.Because rotary plane reflecting mirror only changes the angle of incident beam, the position of entrance pupil and the bore of light beam are not changed, therefore during rotary plane reflecting mirror, hot spot holding position and the size that can be clearly observed exit pupil position are constant.Blank is deviateed into exit pupil position, blank and plane mirror center are no longer on image conjugate position, again rotary plane reflecting mirror, and the position that hot spot can be observed changes with the rotation of plane mirror.Demonstrator provided by the utility model, demonstrative process is obvious, intuitively can demonstrate the conjugate position of entrance pupil and emergent pupil in optical system to student and correspond to, enrich teaching means.
Description
Technical field
The utility model belongs to a kind of instruments used for education, more particularly to a kind of entrance pupil-emergent pupil conjugate relation demonstrator.
Background technology
In college course《Application Optics》、《Geometric optics》、《Engineering optics》And in other related teaching processes, entrance pupil and
Emergent pupil is very important concept in optical system, is between the two conjugate relation, the description of teacher's generally use language and diagram
Method impart knowledge to one's students, student can not intuitively observe the conjugate position relation of entrance pupil and emergent pupil, if exploitation
Go out a kind of instruments used for education, can the entrance pupil of ocular demonstration optical system and the conjugate relation of emergent pupil, can be to the content of courses and means
The supplement and auxiliary being highly profitable.
The content of the invention
The utility model deficiency existing for existing optical demo instrument, there is provided one kind can effectively help student directly perceived
Ground understands the demonstrator of the conjugate relation of entrance pupil and emergent pupil in optical system.
Realize that the technical scheme of the present utility model purpose is to provide a kind of entrance pupil-emergent pupil conjugate relation demonstrator, it
Including laser, object lens, collimation lens, plane mirror, turntable, first positive lens, second positive lens, blank and cunning
Rail；Light beam caused by laser obtains collimated light beam after object lens and collimation lens expand, and plane mirror is placed on turntable；
The focal length of plane mirror, first positive lens and second positive lens isf, two panels positive lens is at a distance of 2f, form 4fOptics
System, described collimated light beam are reflected by plane mirror, into 4fOptical system；The center of plane mirror is placed in first
The front focus of positive lens, blank are placed on slide rail, slide rail and 4fThe optical axis of optical system is parallel and through second positive lens
Back focal plane, emergent light spot is shown on blank.
In technical solutions of the utility model, blank slides to the back focal plane of second positive lens, and it is flat to rotate turntable change
The angle of face speculum and described collimated light beam, the size and location of the emergent light spot shown on blank are constant.Blank deviates
The back focal plane of second positive lens, the angle that turntable changes plane mirror and described collimated light beam is rotated, is shown on blank
The position for the emergent light spot shown changes.
Entrance pupil provided by the utility model-emergent pupil conjugate relation demonstrator, the center of plane mirror and blank are placed in
4fThe image conjugate position of optical system, respectively to should optical system entrance pupil and exit pupil position.Light beam caused by laser
The collimated light beam for go-no-go is expanded through object lens and collimating mirror, the light beam is reflected by plane mirror, after the direction of propagation changes
Into 4fOptical system, emergent light spot can be observed on blank.Because the center of plane mirror and blank are placed in 4fOptics
The image conjugate position of system, plane mirror is rotated around by axle of its center using turntable, can control the angle of the reflected beams
Degree, makes the collimated laser beam of different incidence angles enter optical system, therefore the entrance pupil of the optical system is located in plane mirror
At the heart, entrance pupil size is determined by collimated beam sizes.Blank is the exit pupil position of the system simultaneously.Because Plane of rotation reflects
Mirror only changes the angle of incident beam, does not change the position of entrance pupil and the bore of light beam, therefore in the mistake of rotary plane reflecting mirror
Cheng Zhong, it can significantly observe that exit pupil position is that hot spot holding position on blank and size are constant.Blank is deviateed into emergent pupil position
Put, now blank and entrance pupil are no longer on conjugate position, again rotary plane reflecting mirror, and the position of hot spot on blank can be observed
Changed with the rotation of plane mirror.
Demonstrator provided by the utility model, demonstrative process is obvious, intuitively can demonstrate entrance pupil in optical system to student
It is corresponding with the conjugate position of emergent pupil, teaching means is enriched, the content of courses is more intuitively changed.
Brief description of the drawings
Fig. 1 is a kind of structural representation for entrance pupil-emergent pupil conjugate relation demonstrator that the utility model embodiment provides.
In figure, 1, laser；2nd, object lens；3rd, collimating mirror；4th, plane mirror；5th, turntable；6th, first positive lens；7、
Second positive lens；8th, blank；9th, slide rail.
Embodiment
Technical solutions of the utility model are further elaborated with reference to the accompanying drawings and examples.
Embodiment 1
The present embodiment provides a kind of entrance pupil-emergent pupil conjugate relation demonstrator.
Referring to accompanying drawing 1, it is a kind of structural representation for entrance pupil-emergent pupil conjugate relation demonstrator that the present embodiment provides；
Light beam caused by laser 1 expands the collimated light beam for go-no-go through object lens 2 and collimating mirror 3, and plane mirror 4 is placed in rotation
On platform 5, collimated light beam is reflected by plane mirror 4, and the direction of propagation enters just saturating by first positive lens 6 and second after changing
The 4 of the composition of mirror 7fOptical system, blank 8 can slide on slide rail 9, slide rail 9 and 4fThe optical axis of optical system is parallel, in blank 8
On emergent light spot can be observed.Plane mirror 4 is centrally located at the front focus of first positive lens 6, and blank 8 slides into second
The back focal plane of piece positive lens 7, the center of blank 8 overlap with the rear focus of second positive lens 7, i.e. the center of plane mirror 4
4 are placed in blank 8fThe image conjugate position of optical system.
When demonstrating entrance pupil-emergent pupil conjugate relation using the demonstrator, make plane mirror 4 around with wherein using turntable 5
The heart rotates for axle, can control the angle of the reflected beams, the collimated laser beam of different object space angular apertures is entered optical system, therefore
The entrance pupil of the optical system is located at the center of plane mirror 4, and entrance pupil size is determined by collimated beam sizes.Blank 8 is simultaneously
For the exit pupil position of the system.Because rotary plane reflecting mirror 4 only changes the angle of incident beam, do not change entrance pupil position and
The bore of light beam, therefore during rotary plane reflecting mirror 4, it is the light on blank 8 that can significantly observe exit pupil position
Spot holding position and size are constant.Blank 8 is slided to exit pupil position is deviateed, now blank 8 and entrance pupil are no longer on being conjugated position
Put, again rotary plane reflecting mirror 4, the position that hot spot on blank 8 can be observed changes with the rotation of plane mirror 4.
Claims (1)
- A kind of 1. entrance pupil-emergent pupil conjugate relation demonstrator, it is characterised in that：It includes laser（1）, object lens（2）, collimation lens （3）, plane mirror（4）, turntable（5）, first piece positive lens（6）, second piece positive lens（7）, blank（8）And slide rail（9）； Laser（1）Caused light beam is through object lens（2）And collimation lens（3）Collimated light beam, plane mirror are obtained after expanding（4）It is placed in Turntable（5）On；Plane mirror（4）, first piece positive lens（6）With second positive lens（7）Focal length bef, two panels is just Lens are at a distance of 2f, form 4fOptical system, described collimated light beam is by plane mirror（4）Reflection, into just saturating by first Mirror（6）With second positive lens positive lens（7）4 formedfSystem；Plane mirror（4）Center be placed in first positive lens （6）Front focus, blank（8）It is placed in slide rail（9）On, slide rail（9）With 4fThe optical axis of optical system is parallel and passes through second just Lens（7）Back focal plane, emergent light spot is shown on blank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132883.0U CN206685026U (en) | 2017-02-14 | 2017-02-14 | Entrance pupil emergent pupil conjugate relation demonstrator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720132883.0U CN206685026U (en) | 2017-02-14 | 2017-02-14 | Entrance pupil emergent pupil conjugate relation demonstrator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206685026U true CN206685026U (en) | 2017-11-28 |
Family
ID=60395919
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720132883.0U Expired - Fee Related CN206685026U (en) | 2017-02-14 | 2017-02-14 | Entrance pupil emergent pupil conjugate relation demonstrator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206685026U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440849A (en) * | 2022-01-27 | 2022-05-06 | 浙江大学 | Method and device for calibrating verticality of two-dimensional feedback positioning frame |
-
2017
- 2017-02-14 CN CN201720132883.0U patent/CN206685026U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114440849A (en) * | 2022-01-27 | 2022-05-06 | 浙江大学 | Method and device for calibrating verticality of two-dimensional feedback positioning frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Mashingaidze | The teaching of geometric (isometric) Transformations at secondary school level: What approach to use and why? | |
| CN206685026U (en) | Entrance pupil emergent pupil conjugate relation demonstrator | |
| Munier et al. | Interdisciplinary mathematics–physics approaches to teaching the concept of angle in elementary school | |
| CN205609077U (en) | Deflection law presentation device | |
| CN114360348A (en) | Three-dimensional light path experiment demonstration method | |
| Marciuc et al. | Understanding multiple reflections in two plane mirrors by building computer simulations | |
| CN105261272A (en) | Refractometer teaching model | |
| Frank et al. | Augmenting mathematics courses by problem-based learning | |
| Kuna et al. | Didactic materials supporting CAD/CAE system teaching | |
| Furió et al. | AMI: augmented Michelson interferometer | |
| Papamanolis et al. | Information Technologies in Architectural Pedagogy: from" Tool" to a" Comprehensive Educational Strategy" | |
| Saprudin et al. | The Design of Media on Two-Lens System Experiment (MTLSE) for Pre-service Physics Teachers | |
| Alsaqri et al. | The Impact of Using Electronic Brainstorming Strategy in a Blended Learning Environment on Grade-Eleven Female Students’ Achievement in Islamic Education in the Sultanate of Oman | |
| Siegel et al. | Teaching algebra and geometry concepts by modeling telescope optics | |
| Wirth et al. | Analysis of learning by doing in the creation of instructional video in teaching optics | |
| Enderson et al. | Emerging engineers design a paper table | |
| US2881536A (en) | Means for demonstrating optical refraction | |
| Wang et al. | Student-centered and ability-training–oriented curriculum reform in teaching Microcontroller Principles and Interface Techniques | |
| Mota et al. | REFLECTING UNDERSTANDING USING LAB STATIONS TO TEACH IMAGE FORMATION. | |
| Yurumezoglu et al. | Activity Teaches Mirror Concepts. | |
| López-Esteban | INTERNATIONALIZATION THROUGH THE SUSTAINABLE DEVELOPMENT GOALS OF SECONDARY TEACHER EDUCATION | |
| CN201054206Y (en) | Plane image imaging refection demonstration device | |
| Zik et al. | Claudius Ptolemy and Giambattista Della Porta: Two Contrasting Conceptions of Optics | |
| Avcu et al. | STEM Activity: Mathematics inside the Hologram Pyramid. | |
| CN201514717U (en) | Optical experiment demonstrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171128 Termination date: 20180214 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |