CN208922596U - Convex lens image-forming discipline one tester - Google Patents
Convex lens image-forming discipline one tester Download PDFInfo
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- CN208922596U CN208922596U CN201821422714.1U CN201821422714U CN208922596U CN 208922596 U CN208922596 U CN 208922596U CN 201821422714 U CN201821422714 U CN 201821422714U CN 208922596 U CN208922596 U CN 208922596U
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- 230000007246 mechanism Effects 0.000 claims abstract description 58
- 238000002474 experimental method Methods 0.000 claims abstract description 34
- 230000003287 optical effect Effects 0.000 claims abstract description 30
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- 239000004926 polymethyl methacrylate Substances 0.000 claims description 24
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 15
- 239000005357 flat glass Substances 0.000 claims description 15
- 244000309464 bull Species 0.000 claims description 10
- 230000008859 change Effects 0.000 claims description 5
- 230000000452 restraining effect Effects 0.000 claims description 4
- 239000004744 fabric Substances 0.000 claims 1
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- 239000007787 solid Substances 0.000 claims 1
- 238000012360 testing method Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 description 13
- 238000010586 diagram Methods 0.000 description 9
- 230000001360 synchronised effect Effects 0.000 description 7
- 230000000694 effects Effects 0.000 description 5
- 238000012795 verification Methods 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
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- 230000003321 amplification Effects 0.000 description 2
- 239000000571 coke Substances 0.000 description 2
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- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Utility model discloses convex lens image-forming discipline one tester, belong to Physical Experiment field, convex lens image-forming discipline one tester, including testing support device ontology, experiment support device ontology upper end, which is dug, limit sliding chutes, being slidably connected in limit sliding chutes, there are two T-shaped sliders, hinge is fixedly connected between two T-shaped sliders, two T-shaped slider upper ends are fixedly connected to sliding limit and move block, sliding limit moves block front end and slidably connects the movable block with graduation mark, sliding limit, which is moved block upper end and dug, bar shaped sliding groove, bar shaped sliding groove upper end is successively arranged from left to right with point-like laser device LED display, atomizer, directional light mechanism, lens mechanism, optical screen paper and camera, LED display is electrically connected with point-like laser device LED display right end, with point-like laser device LED display, thoroughly Illuminating apparatus structure, camera lower end are fixedly connected to lengthening support rod, and the demonstration that kinds of experiments is carried out on the same device may be implemented.
Description
Technical field
The utility model relates to Physical Experiment fields, more specifically to convex lens image-forming discipline one tester.
Background technique
Convex lens image-forming discipline has five rules altogether, is respectively: first be object distance be greater than two times of focal lengths when, image distance is one or two
Between times focal length, at handstand, diminution, real image, this rule is at least tested twice；Second be object distance be equal to two times of focal lengths when, image distance
Equal to two times focal lengths, at stand upside down, etc. big, real image；Third be object distance between one or two times of focal lengths when, image distance be greater than two times of focal lengths,
At handstand, amplification, real image, this rule is at least tested at least tests twice twice；Fourth is that object distance on one times of focal length, not at
Picture；Fifth is that when object distance is less than one times of focal length, Cheng Zhengli, amplification, the virtual image, and when experiment, which need to as required move on to object, requires position
Locate, each point on light source can to all the winds emit light, if wherein the light by convex lens refraction is in lens
Other side can converge at a bit, then just be in real image, adjustment screener position show clearly as if these light
It cannot converge at a bit, it would not be at real image, it is possible that not being imaged or at the virtual image (optical screen accept less than), this experiment is just
Be object distance in convex lens image-forming discipline to be solved (distance of object to convex lens), image distance (as arrive convex lens distance), as spy
Corresponding relationship between point (just falling, size, actual situation), and these relationships are applied.
Existing experimental provision is merely capable of verifying a kind of experimental principle, when needing each characteristic principle to lens
When carrying out experimental verification, needs to switch multiple devices, be not easy to the summary of experimental implementation and experimental result.
Utility model content
1. technical problems to be solved
Aiming at the problems existing in the prior art, the purpose of this utility model is to provide convex lens image-forming disciplines integrally to try
Instrument is tested, the demonstration that kinds of experiments is carried out on the same device may be implemented in it.
2. technical solution
To solve the above problems, the utility model adopts the following technical scheme.
Convex lens image-forming discipline one tester, including support device ontology is tested, on the experiment support device ontology
End, which is dug, limit sliding chutes, is slidably connected in the limit sliding chutes there are two T-shaped slider, fixed between two T-shaped sliders
It is connected with hinge, two T-shaped slider upper ends are fixedly connected to sliding limit and move block, and the sliding limit is moved the sliding of block front end and connected
It is connected to the movable block with graduation mark, the sliding limit, which is moved block upper end and dug, bar shaped sliding groove, bar shaped sliding groove upper end
It is successively arranged from left to right with point-like laser device LED display, atomizer, directional light mechanism, lens mechanism, optical screen paper and is taken the photograph
It is described to be electrically connected with LED display with point-like laser device LED display right end as head, it is described to have point-like laser device LED
Display screen, lens mechanism, camera lower end are fixedly connected to lengthening support rod, the lengthening support rod, atomizer, directional light
Mechanism and optical screen paper lower end are threaded with small magnet, and the small magnet lower end is fixedly connected with nanoscale abnormity sliding block, institute
Nanoscale abnormity sliding block lower end is stated to be slidably connected with bar shaped sliding groove, it is described with point-like laser device LED display, atomizer,
Directional light mechanism, lens mechanism, optical screen paper and camera pass through sliding limit shifting block and are flexibly connected with bar shaped sliding groove, described flat
Row ray machine structure includes rectangle placement plate and laser lamp, and the experiment support device ontology front end is equipped with acrylic glass plate, described
Acrylic glass plate outer end is fixedly connected with screw, and the acrylic glass plate is fixed by screw and experiment support device ontology
The demonstration that kinds of experiments is carried out on the same device may be implemented in connection.
Further, the acrylic glass front edge of board cutting has rectangular channel, and limit is slidably connected in the rectangular channel
Sliding block, the position limiting slide block upper end are fixedly connected with restraining position ring block, and bull stick, the bull stick lower end are slidably connected in the stop collar
It is rotatably connected to rotary shaft, the rotary shaft is fixedly connected with experiment support device ontology, and the rotary shaft upper end is equipped with red white
Alternate rope, the rope red and white are fixedly connected with acrylic glass plate, convenient for on experiment support device ontology
End convex lens refraction principle synchronizes contrast verification.
Further, acrylic glass plate rear end is coated with optical path strike line, facilitates experimenter to experimentation
Demonstration and synchronous contrast, make experimental phenomena and theoretical explanation synchronous contrast, accomplish that empirical theory connection is consistent, learning effect is more
Add obvious.
Further, the lens mechanism includes three blocks of annular acrylic sheet glass and multiple fastening bolts, and described three pieces
Annular acrylic sheet glass and column distribution are simultaneously mutually fixed by multiple fastening bolts, between described three annular acrylic sheet glass
It is equipped with PE film, the PE film is fixed between three annular acrylic sheet glass by multiple fastening bolts, and the lower end is tight
Fixing bolt outer end is threaded with supporting block, and the supporting block lower end is fixedly connected with support rod is lengthened, and keeps lens mechanism removable
Cleaning is unloaded, replaceable PE film, the liquid for the different refractivity that changes the outfit into lens mechanism, PE film outwardly convex, lens mechanism is at this time
For convex lens, liquid is extracted, PE film is recessed inwardly, and lens mechanism is concavees lens at this time, convenient for controlling this variable of lens mechanism,
It is convenient that different focal length and different types of lens mechanism are tested.
Further, it is fixedly connected with conduit between the PE film, the external catheter end is connected with syringe, described
Graduation mark is uniformly carved in syringe outer end, injects a certain amount of liquid into lens mechanism convenient for user.
3. beneficial effect
Compared with the prior art, utility model has the advantages that
(1) demonstration that kinds of experiments is carried out on the same device may be implemented in this programme.
(2) acrylic glass front edge of board cutting has rectangular channel, slidably connects position limiting slide block in rectangular channel, on position limiting slide block
End is fixedly connected with restraining position ring block, bull stick is slidably connected in stop collar, bull stick lower end is rotatably connected to rotary shaft, rotary shaft and reality
It tests support device ontology to be fixedly connected, rotary shaft upper end is equipped with rope red and white, rope red and white and acrylic glass
Glass plate is fixedly connected, convenient for synchronizing contrast verification to experiment support device ontology upper end convex lens refraction principle.
(3) acrylic glass plate rear end is coated with optical path strike line, facilitates experimenter to the demonstration of experimentation and same
Step comparison, makes experimental phenomena and theoretical explanation synchronous contrast, accomplishes that empirical theory connection is consistent, learning effect is more obvious.
(4) lens mechanism includes three blocks of annular acrylic sheet glass and multiple fastening bolts, three blocks of annular acrylic glass
Piece and column distribution are simultaneously mutually fixed by multiple fastening bolts, are equipped with PE film between three annular acrylic sheet glass, PE film is logical
It crosses multiple fastening bolts to be fixed between three annular acrylic sheet glass, lower end fastening bolt outer end is threaded with support
Block, supporting block lower end are fixedly connected with support rod is lengthened, and make lens mechanism disassembling cleaning, replaceable PE film, to lens mechanism
In change the outfit the liquid of different refractivity, PE film outwardly convex, lens mechanism is convex lens at this time, extracts liquid, and PE film concaves
It falls into, lens mechanism is concavees lens at this time, convenient to different focal length and different types of convenient for control this variable of lens mechanism
Illuminating apparatus structure is tested.
(5) conduit is fixedly connected between PE film, external catheter end is connected with syringe, and syringe outer end is uniformly dug
There is graduation mark, convenient for injecting a certain amount of liquid into lens mechanism.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the outside of the utility model；
Fig. 2 is the structural schematic diagram of the lens mechanism part of the utility model；
Fig. 3 is the structural schematic diagram with point-like laser device LED display part of the utility model；
Fig. 4 is the structural schematic diagram of the position limiting slide block part of the utility model；
Fig. 5 is the structural schematic diagram after the position limiting slide block partial movement of the utility model；
Fig. 6 is the structural schematic diagram of the T-shaped slider part of the utility model；
Fig. 7 is state diagram when the utility model verifies virtual image forming rule.
Figure label explanation:
1 experiment support device ontology, 2 limit sliding chutes, 3 T-shaped sliders, 4 sliding limits move block, 5 bar shaped sliding grooves, 6 bands a little
The laser/led display screen of shape, 7 atomizers, 8 nanoscale abnormity sliding blocks, 9 optical screen paper, 10 cameras, 11 lengthen support rods, 12 small
Magnet, 13 acrylic glass plates, 14 screws, 15 rectangular channels, 16 position limiting slide blocks, 17 bull sticks, 18 rotary shafts, 19 annular acrylic glass
Glass piece, 20 fastening bolts, 21 syringes, 22 LED displays, 23 laser lamps, 24 hinges.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe；Obviously, the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment, based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside", " top/bottom end " etc.
The orientation or positional relationship of instruction is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of description the utility model
It is described with simplifying, rather than the device or element of indication or suggestion meaning must have a particular orientation, with specific orientation structure
It makes and operates, therefore should not be understood as limiting the present invention.In addition, term " first ", " second " are only used for description mesh
, it is not understood to indicate or imply relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified
Dress ", " being provided with ", " be arranged/connect ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, can also be with
It is to be detachably connected, or be integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be with
Indirectly connected through an intermediary, it can be the connection inside two elements.For the ordinary skill in the art, may be used
The concrete meaning of above-mentioned term in the present invention is understood with concrete condition.
Embodiment 1:
Please refer to Fig. 1-7, convex lens image-forming discipline one tester, including experiment support device ontology 1, experiment support dress
Set the effect of ontology are as follows: support dynamic light-path diagram, all experimental provisions of storage and allow true Experimental Research process and dynamic electric
Road figure is at upper and lower synchronous contrast, and testing 1 upper end of support device ontology and digging has limit sliding chutes 2, and sliding connects in limit sliding chutes 2
It connects there are two T-shaped slider 3, is fixedly connected with hinge 24 between two T-shaped sliders 3, using foldover design, it is difficult to solve carrying
The problem of, the reduction of volume reduces memory space substantially, and two 3 upper ends of T-shaped slider are fixedly connected to sliding limit and move block 4,
Sliding limit moves 4 front end of block and slidably connects the movable block with graduation mark, and the zero graduation of the movable block with graduation mark is located at saturating
Mirror mechanism position, scale constantly increase to both sides, and the movable block with graduation mark can limit shifting block 4 along sliding and horizontally slip, and slide
Limit, which is moved 4 upper end of block and dug, bar shaped sliding groove 5, and 5 upper end of bar shaped sliding groove is successively arranged from left to right with point-like laser device LED
Display screen 6, atomizer 7, directional light mechanism, lens mechanism, optical screen paper 9 and camera 10 have point-like laser device LED display
Specially LED display is simultaneously listed in a left side on the right side, point-like laser device, and LED is in middle, and camera is furnished with USB extended line, atomization
The effect of device 7 allows light trend to be more easier to observe, by having point-like laser device LED display 6, atomizer 7, parallel ray machine
Structure, lens mechanism, optical screen paper 9 and camera 10 are respectively cooperating with, and the result verification of kinds of experiments may be implemented, swash with dotted
6 right end of light device LED display is electrically connected with LED display 22, is used as light source, normal daylight condition using LED display 22
Lower imaging is obvious, and light source size will not change, and imaging size is stablized, and can either observe and turn upside down, and it can be seen that left and right
It is reverse, it is fixedly connected to point-like laser device LED display 6, lens mechanism, 10 lower end of camera and lengthens support rod 11,
Convenient for being arranged experimental provision on sustained height, each optical component is the key that guarantee Success in Experiment, just on sustained height
In being normally carried out for experiment, lengthens support rod 11, atomizer 7, directional light mechanism and 9 lower end of optical screen paper and be threaded with small magnetic
Iron 12 is handled convenient for the replacement of experiment component, is increased experimenter and is done the efficiency tested, 12 lower end of small magnet, which is fixedly connected with, to be received
Meter level abnormity sliding block 8, is not easy to be stained, and damps moderate, can save the operation that locking unclamps sliding block, easy operating process, contracting
Short experimental period, for a long time using existing level is also able to maintain, 8 lower end of nanoscale abnormity sliding block and bar shaped sliding groove 5 are slided
Connection, it is equal with point-like laser device LED display 6, atomizer 7, directional light mechanism, lens mechanism, optical screen paper 9 and camera 10
It limits shifting block 4 by sliding to be flexibly connected with bar shaped sliding groove 5, directional light mechanism includes rectangle placement plate and laser lamp 23, makes to swash
Light lamp 23 replaces sunlight, expands the freedom degree of experiment condition, and experiment 1 front end of support device ontology is equipped with acrylic glass plate
13,13 outer end of acrylic glass plate is fixedly connected with screw 14, and acrylic glass plate 13 passes through screw 14 and experiment support device
Ontology 1 is fixedly connected, and the demonstration that kinds of experiments is carried out on the same device may be implemented.
13 front end of acrylic glass plate, which is dug, rectangular channel 15, and position limiting slide block 16 is slidably connected in rectangular channel 15, limits
16 upper end of sliding block is fixedly connected with restraining position ring block, and bull stick 17 is slidably connected in stop collar, and 17 lower end of bull stick is rotatably connected to rotation
Axis 18, rotary shaft 18 are fixedly connected with experiment support device ontology 1, and 18 upper end of rotary shaft is equipped with rope red and white,
The rope red and white is fixedly connected with acrylic glass plate 13, referring to Fig. 7, placing position above shaft 18 for convex lens
It sets, rope red and white is located on the reverse extending line of the light after convex lens refraction, when position limiting slide block 16 enters one times of coke
After interior, from convex lens right side, bull stick 17 intersects on the left of convex lens with straight line red and white, illustrates to form void
Picture, and illustrate the positional relationship of the virtual image and refracted light, convenient for experiment 1 upper end convex lens refraction principle of support device ontology
Contrast verification is synchronized, 13 rear end of acrylic glass plate is coated with optical path strike line, and wherein the short-term of cross indicates convex
Lens, long line indicate primary optical axis, there are four vertical small short thick stick on primary optical axis, are followed successively by two times of focal lengths from left to right, one times of coke
Away from place, at one times of focal length, at two times of focal lengths, experimenter is facilitated to make experimental phenomena to the demonstration and synchronous contrast of experimentation
With theoretical explanation synchronous contrast, accomplish that empirical theory connection is consistent, learning effect is more obvious, and lens mechanism includes three pieces of annulars
Acrylic sheet glass 19 and multiple fastening bolts 20, three blocks of annular acrylic sheet glass 19 and column distribution simultaneously pass through multiple fastening spiral shells
20 phase of bolt is fixed, and is equipped with PE film between three annular acrylic sheet glass 19, PE film is fixed on by multiple fastening bolts 20
Between three annular acrylic sheet glass 19, fastening bolt 20 outer end in lower end is threaded with supporting block, supporting block lower end with plus
Strut 11 of drawing money on credit is fixedly connected, and makes lens mechanism disassembling cleaning, replaceable PE film, change the outfit different refractivity into lens mechanism
Liquid, PE film outwardly convex, lens mechanism is convex lens at this time, extracts liquid, and PE film is recessed inwardly, and lens mechanism is at this time
Concavees lens facilitate comparison to obtain experimental result, are fixedly connected with conduit between PE film convenient for control this variable of lens mechanism,
External catheter end is connected with syringe 21, and graduation mark, while the injection of syringe 21 and extraction are uniformly carved in 21 outer end of syringe
The amount of liquid is accurately controlled by stepper motor and screw rod slide unit, injects quantitative liquid into lens mechanism convenient for user.
It has been sequentially placed from left to right referring to Fig. 1, limiting shifting 4 upper end of block in sliding with point-like laser device LED display
6, lens mechanism, optical screen paper 9 and camera 10, position and the liquid volume of adjusting lens mechanism by mobile related device,
And the imaging on optical screen paper 9 is observed, to obtain meniscus to the action rule of light and the imaging law of convex lens；
Shifting 4 upper end of block, which is limited, in sliding has been sequentially placed directional light mechanism, atomizer 7, nanoscale abnormity sliding block 8, optical screen paper 9 from left to right
With camera 10, laser lamp 23 and atomizer 7 are opened simultaneously, the position of each device is adjusted further according to variable, and observes laser
The refraction situation of lamp 23 obtains convex lens dynamic light-path diagram to summarize；It is limited in sliding and moves 4 upper end of block from left to right successively
It is placed with point-like laser device LED display 6, lens mechanism, optical screen paper 9 and camera 10, experimenter is by lens mechanism
It is adjusted to convex lens, then instrumentality obtains clearly as by object far from lens mechanism, optical screen is kept away from, image distance on optical screen
It is motionless, on optical screen at picture fog, extract out lens mechanism in a certain amount of liquid, keep lens mechanism thinning, refractive power become
It is weak, it is re-formed on optical screen clearly as the picture for forming object on lens mechanism, optical screen fogs, and is filled with some liquid
Body, lens mechanism refractive power become strong, restart to be formed on optical screen clearly as above procedure is that demonstrating eye can be seen
The principle of the nearly different object in Qingyuan City；Shifting 4 upper end of block is limited in sliding to be sequentially placed from left to right there are two convex lens, adjusts two
The distance between convex lens is observed that far object, simulates telescope, may be implemented to carry out on the same device more
The demonstration of kind experiment.
The preferable specific embodiment of the above, only the utility model；But the protection scope of the utility model is not
It is confined to this.Anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this
Novel technical solution and its improvement design is subject to equivalent substitution or change, should all cover in the protection scope of the utility model
It is interior.
Claims (5)
1. convex lens image-forming discipline one tester, including experiment support device ontology (1), the experiment support device ontology
(1) upper end is dug and is had limit sliding chutes (2), and being slidably connected in the limit sliding chutes (2), there are two T-shaped slider (3), and feature exists
In: it is fixedly connected with hinge (24) between two T-shaped sliders (3), two T-shaped slider (3) upper ends are fixedly connected with
There is sliding limit to move block (4), the sliding limit moves block (4) front end and slidably connects the movable block with graduation mark, the sliding limit
Moving block (4) upper end and digging has bar shaped sliding groove (5), and bar shaped sliding groove (5) upper end is successively arranged from left to right with dotted
Laser/led display screen (6), atomizer (7), directional light mechanism, lens mechanism, optical screen paper (9) and camera (10), the band
There is dotted laser/led display screen (6) right end to be electrically connected with LED display (22), it is described to be shown with point-like laser device LED
Screen (6), lens mechanism, camera (10) lower end, which are fixedly connected to, lengthens support rod (11), the lengthening support rod (11), mist
Change device (7), directional light mechanism and optical screen paper (9) lower end to be threaded with small magnet (12), small magnet (12) lower end is solid
Surely it is connected with nanoscale abnormity sliding block (8), the nanoscale abnormity sliding block (8) lower end is slidably connected with bar shaped sliding groove (5), institute
It states with point-like laser device LED display (6), atomizer (7), directional light mechanism, lens mechanism, optical screen paper (9) and camera
(10) block (4) are moved by sliding limit to be flexibly connected with bar shaped sliding groove (5), the directional light mechanism include rectangle placement plate with
Laser lamp (23), the experiment support device ontology (1) front end are equipped with acrylic glass plate (13), the acrylic glass plate
(13) outer end is fixedly connected with screw (14), and the acrylic glass plate (13) passes through screw (14) and experiment support device ontology
(1) it is fixedly connected.
2. convex lens image-forming discipline one tester according to claim 1, it is characterised in that: the acrylic glass plate
(13) front end is dug and is had rectangular channel (15), slidably connects position limiting slide block (16), the position limiting slide block in the rectangular channel (15)
(16) upper end is fixedly connected with restraining position ring block, slidably connects in the stop collar bull stick (17), bull stick (17) the lower end rotation
It is connected with rotary shaft (18), the rotary shaft (18) is fixedly connected with experiment support device ontology (1), on the rotary shaft (18)
End is equipped with rope red and white, and the rope red and white is fixedly connected with acrylic glass plate (13).
3. convex lens image-forming discipline one tester according to claim 2, it is characterised in that: the acrylic glass plate
(13) rear end is coated with optical path strike line.
4. convex lens image-forming discipline one tester according to claim 1, it is characterised in that: the lens mechanism includes
Three pieces of annular acrylic sheet glass (19) and multiple fastening bolts (20), described three pieces annular acrylic sheet glass (19) are divided side by side
Cloth is simultaneously mutually fixed by multiple fastening bolts (20), is equipped with PE film, institute between described three annular acrylic sheet glass (19)
It states PE film to be fixed between three annular acrylic sheet glass (19) by multiple fastening bolts (20), the lower end fastening bolt
(20) outer end is threaded with supporting block, and the supporting block lower end is fixedly connected with support rod (11) are lengthened.
5. convex lens image-forming discipline one tester according to claim 4, it is characterised in that: fixed between the PE film
It is connected with conduit, the external catheter end is connected with syringe (21), and graduation mark is uniformly carved in syringe (21) outer end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821422714.1U CN208922596U (en) | 2018-08-31 | 2018-08-31 | Convex lens image-forming discipline one tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821422714.1U CN208922596U (en) | 2018-08-31 | 2018-08-31 | Convex lens image-forming discipline one tester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208922596U true CN208922596U (en) | 2019-05-31 |
Family
ID=66703182
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821422714.1U Expired - Fee Related CN208922596U (en) | 2018-08-31 | 2018-08-31 | Convex lens image-forming discipline one tester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208922596U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822189A (en) * | 2022-04-22 | 2022-07-29 | 聊城高级财经职业学校 | Optical lens demonstration device for replacing and adjusting lens and focal length through computer |
-
2018
- 2018-08-31 CN CN201821422714.1U patent/CN208922596U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822189A (en) * | 2022-04-22 | 2022-07-29 | 聊城高级财经职业学校 | Optical lens demonstration device for replacing and adjusting lens and focal length through computer |
| CN114822189B (en) * | 2022-04-22 | 2023-08-11 | 聊城高级财经职业学校 | Optical lens demonstration device capable of adjusting lens and focal length through computer replacement |
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