CN102800229A - Variable-focus water lens - Google Patents
Variable-focus water lens Download PDFInfo
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- CN102800229A CN102800229A CN2012103109878A CN201210310987A CN102800229A CN 102800229 A CN102800229 A CN 102800229A CN 2012103109878 A CN2012103109878 A CN 2012103109878A CN 201210310987 A CN201210310987 A CN 201210310987A CN 102800229 A CN102800229 A CN 102800229A
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- water
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- transparent film
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- elastic transparent
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Abstract
The invention relates to a physical teaching aid, and particularly relates to a variable-focus water lens which comprises an orbit (namely a round lens frame), a crystalline lens (namely an elastic transparent film and water), a ciliary body (comprising a plastic straw, a valve core and an injector) and a metal rod. The variable-focus water lens is characterized in that the elastic transparent film is sheathed on the round lens frame for sealing so as to form a sealing cavity capable of containing the water; the bottom end of the round lens frame is connected with the metal rod; a small hole at the top end of the round lens frame is connected with the plastic straw; the part, extending out of the round lens frame, of the plastic straw is connected with the valve core; the other end of the valve core is connected with the injector; and the injector is used for injecting water into the elastic transparent film or sucking the water in the elastic transparent film, so that the convex degree of the elastic transparent film is changed, and then the focus of the water lens can continuously change according to experimental demands. The variable-focus water lens is simple and convenient in material selection, can show clear phenomena and vivid images, and is simple to operate and strong in practicability.
Description
Technical field:
The present invention relates to a kind of physics teaching and use teaching aid, especially varifocal water lens.
Background technology:
At present in physics teaching and the teaching of medicine universities and colleges medical physicses, teacher is last during about " eyes and glasses " this joint content, owing to the teaching material of existing various version all is to simulate eye's lens with convex lens; When probing into the principle of eye imaging; The picture of the different object of distance is become on optical screen, will use the convex lens of different focal instead and realize, because of the equipment restriction; In practical operation, be difficult to find the convex lens that focal length is suitable; Picture is clearly become on optical screen, will change the distance of convex lens and optical screen, this does not conform to the practical adjustments of eyes yet; Demonstration myopia and farsightedness lens shapes change when causing focal length variations, also can only use the convex lens of different focal instead and realize, lens shapes changes and can't demonstrate; Probing into myopia also is difficult to accurately become picture on retina with presbyopic rectification.In a word; The experiment equipment that provides according to teaching material experimentizes, because the used convex lens in laboratory are processed by glass material, its convex curvature immobilizes; Lenticular convexity is changed the student and contraction of muscle diastole situation is difficult to perception; And operation easier is big, and experiment effect is not obvious, and this brings very big difficulty to field research.
Summary of the invention:
The technical matters that the present invention will solve provides a kind of varifocal water lens; Lens with varifocal water lens simulation eyes; Simultaneously; Replace convex lens or concavees lens to correct farsightedness and myopia with varifocal water lens, through pushing away or drawing the piston of syringe to change the focal length of water lens, the deficiency of improving that teaching material can not change with the lenticular focal length of convex lens simulation eyes and can not continuously changing with concavees lens and convex lens correction of myopia and farsightedness focal length.
In order to solve the problems of the technologies described above, technical scheme of the present invention is:
Varifocal water lens comprise " eye socket " (round lens frame), " crystalline lens " (elastic transparent film, water), " ciliary body " (plastic suction pipe, valve inside, syringe), Metallic rod.It is characterized in that: elastic transparent film is enclosed within on the round lens frame and seals, and formation can be held the annular seal space of water, and round lens frame bottom is connected with Metallic rod; The top has an aperture to connect plastic suction pipe, and the plastic suction pipe extension is connected to valve inside, another termination syringe of valve inside; In elastic transparent film, inject water through syringe; Or the water in the absorption elastic transparent film, the degree of convexity of change elastic transparent film can change by experimental needs its focal length continuously.
Said plastic suction pipe and round lens frame junction, Metallic rod and round lens frame junction are positioned at said round lens frame axle center.
Said round lens frame and elastic transparent film, the channel seal between round lens frame and plastic suction pipe, valve inside, the syringe is air tight.
The air of the varifocal water lens of the dirigibility emptying that said valve inside can pull out on syringe the inside and the water of packing into.
Said Metallic rod plays a part to support, fixing varifocal water lens, and convenient and breadboard optical bench, the thing of looking (luminophor), optical screen are used.
The invention has the beneficial effects as follows: the present invention surrounds the annular seal space that can hold water through round lens frame and elastic transparent film; The passage that passes through then between round lens frame and plastic suction pipe, valve inside, the syringe injects water or the discharge annular seal space; To obtain curvature continually varying elastic transparent film, very clearly observe the variation that it converges effect.
The present invention cooperates breadboard optical bench, optical screen and candle to do experiment, can simulate principle and the myopia and the presbyopic correcting process of eye imaging vivid, realistically.Selection is easy, phenomenon is obvious, vivid, simple to operate, be convenient to student experimenting, observation.Can reach and let the student experience to probe into the process of physical phenomenon; Make the student in probing into the learning process of physical phenomenon, pinpoint the problems, analyze problems and solve them; Reach the purpose of observation ability that improves the student and the learning ability of initiatively probing into, better than the teaching efficiency of the experiment that provides in the teaching material.
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Among the figure: 1-Metallic rod, 2-elastic transparent film, 3-valve inside, 4-plastic suction pipe, 5-round lens frame, 6-water, 7-syringe.
Embodiment
Do a detailed explanation below in conjunction with accompanying drawing 1 specific embodiments of the invention.
Embodiment: varifocal water lens, its structure comprises Metallic rod 1, elastic transparent film 2, valve inside 3, plastic suction pipe 4, round lens frame 5, water 6, syringe 7.Said elastic transparent film 2 is enclosed within sealing on the round lens frame 5, and formation can be held the annular seal space of water 6, and round lens frame 5 bottoms are connected with Metallic rod 1; The top has an aperture to connect plastic suction pipe 4, and plastic suction pipe 4 extensions are connected to valve inside 3, valve inside 3 another termination syringes 7; In elastic transparent film 2, inject water 6 through syringe; Or draw the water 6 in the elastic transparent film 2, and change the degree of convexity of elastic transparent film 2, its focal length can be changed by experimental needs continuously.
Said plastic suction pipe 4 and round lens frame 5 junctions, Metallic rod 1 and round lens frame 5 junctions are positioned at the axle center of said round lens frame 5, and it is 1/8 of round lens frame 5 diameters that round lens frame 5 length are injected in plastic suction pipe 4 lower ends.
Said Metallic rod 1 plays a part to support, fixing varifocal water lens, and convenient and breadboard optical bench, the thing of looking (luminophor), optical screen are used.
Claims (4)
1. varifocal water lens comprise Metallic rod 1, elastic transparent film 2, valve inside 3, plastic suction pipe 4, round lens frame 5, water 6, syringe 7.It is characterized in that: elastic transparent film 2 is enclosed within sealing on the round lens frame 5; Formation can be held the annular seal space of water 6, and round lens frame 5 bottoms are connected with Metallic rod 1, and the top has an aperture to connect plastic suction pipe 4; Plastic suction pipe 4 extensions are connected to valve inside 3; Valve inside 3 another termination syringes 7 inject water 6 through syringe in elastic transparent film 2, or draw the water 6 in the elastic transparent film 2; Change the degree of convexity of elastic transparent film 2, its focal length can be changed by experimental needs continuously.
2. according to right 1 described varifocal water lens, it is characterized in that air that said valve inside 3 can the varifocal water lens of emptyings the inside and the water of packing into.
3. according to right 1 described varifocal water lens; It is characterized in that said plastic suction pipe 4 and round lens frame 5 junctions, Metallic rod 1 and round lens frame 5 junctions are positioned at the axle center of said round lens frame 5, it is 1/8 of round lens frame 5 diameters that round lens frame 5 length are injected in plastic suction pipe 4 lower ends.
4. according to right 1 described varifocal water lens, it is characterized in that said Metallic rod 1 plays a part to support, fixing varifocal water lens, convenient and breadboard optical bench, the thing of looking (luminophor), optical screen are used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103109878A CN102800229A (en) | 2012-08-29 | 2012-08-29 | Variable-focus water lens |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012103109878A CN102800229A (en) | 2012-08-29 | 2012-08-29 | Variable-focus water lens |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102800229A true CN102800229A (en) | 2012-11-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012103109878A Pending CN102800229A (en) | 2012-08-29 | 2012-08-29 | Variable-focus water lens |
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| CN (1) | CN102800229A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504978A (en) * | 2014-12-12 | 2015-04-08 | 东南（福建）汽车工业有限公司 | Visual imaging demonstration instrument |
| CN105891943A (en) * | 2016-05-25 | 2016-08-24 | 哈尔滨工程大学 | Dual-core optical fiber-based liquid dropping suspension type focus adjustable optical tweezers |
| CN107476483A (en) * | 2015-10-16 | 2017-12-15 | 张琴 | Intelligent curtain wall lighting roof with insulation, effect of heat insulation |
| CN110336950A (en) * | 2019-08-12 | 2019-10-15 | 珠海格力电器股份有限公司 | Zoom auxiliary device and camera device |
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| CN201035170Y (en) * | 2006-12-21 | 2008-03-12 | 上海市嘉定区第二中学 | Variable focal length self-closing lens |
| KR20090005579U (en) * | 2007-12-04 | 2009-06-09 | 방극정 | A Laboratory Device Of Light Refraction |
| CN201897898U (en) * | 2010-11-05 | 2011-07-13 | 张娃 | Hyperopia and myopia cause and correction demonstrator |
| CN201927259U (en) * | 2010-12-31 | 2011-08-10 | 康峰 | Demonstrating device for lens characteristics |
| CN202306922U (en) * | 2011-10-27 | 2012-07-04 | 周慧芳 | Convex lens teaching aid for physical teaching |
| CN203055284U (en) * | 2012-08-29 | 2013-07-10 | 熊德永 | Variable-focus water lens |
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- 2012-08-29 CN CN2012103109878A patent/CN102800229A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN2906791Y (en) * | 2006-04-14 | 2007-05-30 | 罗善涛 | Eye imaging teaching demonstrator |
| CN201035170Y (en) * | 2006-12-21 | 2008-03-12 | 上海市嘉定区第二中学 | Variable focal length self-closing lens |
| KR20090005579U (en) * | 2007-12-04 | 2009-06-09 | 방극정 | A Laboratory Device Of Light Refraction |
| CN201897898U (en) * | 2010-11-05 | 2011-07-13 | 张娃 | Hyperopia and myopia cause and correction demonstrator |
| CN201927259U (en) * | 2010-12-31 | 2011-08-10 | 康峰 | Demonstrating device for lens characteristics |
| CN202306922U (en) * | 2011-10-27 | 2012-07-04 | 周慧芳 | Convex lens teaching aid for physical teaching |
| CN203055284U (en) * | 2012-08-29 | 2013-07-10 | 熊德永 | Variable-focus water lens |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104504978A (en) * | 2014-12-12 | 2015-04-08 | 东南（福建）汽车工业有限公司 | Visual imaging demonstration instrument |
| CN107476483A (en) * | 2015-10-16 | 2017-12-15 | 张琴 | Intelligent curtain wall lighting roof with insulation, effect of heat insulation |
| CN107587662A (en) * | 2015-10-16 | 2018-01-16 | 张琴 | With insulation, the intelligent curtain wall lighting roof of effect of heat insulation and its method of work |
| CN107587662B (en) * | 2015-10-16 | 2019-04-23 | 深圳市博大建设集团有限公司 | Working method with heat preservation, the intelligent curtain wall lighting roof of heat insulation |
| CN107476483B (en) * | 2015-10-16 | 2019-05-10 | 深圳正玺绿色建筑科技工程有限公司 | Working method with heat preservation, the intelligent curtain wall lighting roof of heat insulation |
| CN105891943A (en) * | 2016-05-25 | 2016-08-24 | 哈尔滨工程大学 | Dual-core optical fiber-based liquid dropping suspension type focus adjustable optical tweezers |
| CN110336950A (en) * | 2019-08-12 | 2019-10-15 | 珠海格力电器股份有限公司 | Zoom auxiliary device and camera device |
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Application publication date: 20121128 |