CN203825917U

CN203825917U - A novel demonstration experiment apparatus for a convex lens imaging principle

Info

Publication number: CN203825917U
Application number: CN201420225033.1U
Authority: CN
Inventors: 吴学涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2014-05-05
Filing date: 2014-05-05
Publication date: 2014-09-10
Anticipated expiration: 2024-05-05

Abstract

The utility model discloses a novel demonstration experiment apparatus for a convex lens imaging principle, and belongs to teaching appliances. The novel demonstration experiment apparatus for the convex lens imaging principle comprises a dividing ruler, a light source, a convex lens (4), a reference object F and optical screen (5), crossbeams (6) and a support (7). The dividing ruler is an LED right lamp dividing ruler (2), and is installed on the front edge of the support (7). An LED right lamp power supply and a switch (1) are installed on one end of the support (7). The crossbeams (6) are installed on the support (7). The light source is an LED light source F (3). The LED light source F (3), the convex lens (4) and the reference object F and optical screen (5) are installed on the crossbeams (6) through a slide carriage. An image which is the same with the light source F is added to the optical screen (5). According to the novel demonstration experiment apparatus for the convex lens imaging principle of the utility model, a lot of insufficiencies in original experiments are overcome; the imaging effect is obvious; properties of environmental friendliness and cleanness are realized in a usage process; deformation will not occur in long-term usage; the novel demonstration experiment apparatus for the convex lens imaging principle can be used repeatedly; and in a teaching process, validity of teaching of knowledge of the lesson is improved.

Description

The demonstrating experiment device of novel convex lens imaging principle

Technical field

The utility model relates to a kind of teaching aid, and concrete is a kind of demonstrating experiment device of convex lens imaging principle.

Background technology

In junior middle school physics teaching, convex lens imaging principle is a weight, the difficult point of Students ' Learning.The method that teacher's common experimental is probed into goes to break through this heavy, difficult point, but in traditional experimentation, experiment equipment originally and experimental phenomena all exist the place of a lot of deficiencies.

At junior physics, test < < scientific exploration: in the process of convex lens > > teaching, the light source that original experimental provision uses is candle, candle its height and flame thereof in the process of burning can constantly change, and not only can produce a large amount of harmful gases but also its wax oil also can pollute optical bench in sealing and dark laboratory; In addition, the flame presenting on optical screen can only be observed up and down and to stand upside down and erratic image, and the size of image is difficult to quantitative going and measures, and the 3rd, the drawback such as the scale above original optical bench is very little, reading difficulty.

Summary of the invention

The purpose of this utility model is to provide a kind of demonstrating experiment device of novel convex lens imaging principle, this device has overcome many weak points of original experiment, imaging effect is obvious, in the process of using, both environmental protection was also clean, long-time use can be out of shape yet, can use by recharge, in teaching process, improved the validity of this section knowledge teaching.

The purpose of this utility model and solve its technical problem underlying and realize by the following technical solutions: a kind of demonstrating experiment device of novel convex lens imaging principle, comprise rule, light source, convex lens, object of reference " F " and optical screen, crossbeam and support, rule is LED red light rule, be contained in the front of support, LED red light power supply and switch are contained in one end of support, and crossbeam is contained on support; Light source is LED lamp source " F ", according to the image-forming principle of convex lens, LED lamp source " F ", convex lens, object of reference " F " and optical screen is contained on crossbeam by slide; Above optical screen, added an image the same with light source " F ".

" 0 " on described rule point is to start from convex lens, extends respectively to two ends with different colours, and scale registration is large and have a flicker effect of LED lamp.

The utility model compared with prior art has obvious advantage and beneficial effect.From above technical scheme, the utlity model has following characteristics:

(1) light source irradiates " F " (wrongly written or mispronounced character at the bottom of A4 paper print black) as " thing " with LED lamp cold light source, and imaging effect is very obvious.In the process of using, both environmental protection was also clean, and long-time use can be out of shape yet, and can use by recharge.

(2) above optical screen, added an image the same with light source " F ", be convenient to observe " as " carry out up and down with " thing ", stand upside down in left and right and big or small quantitative comparison.

(3) " 0 " on rule point is to start from convex lens, extends respectively to two ends with different colours, and scale registration is large and have the flicker effect of LED lamp, is convenient to student's reading, also can excite students ' interest of study simultaneously.

(4) thing, mirror, as three, can well be fixed in Metallic rod, convenient mobile, allow student at different angles observe phenomena.

Accompanying drawing explanation

Fig. 1 is the utility model structural representation;

Fig. 2 is the vertical view of Fig. 1.

Mark in figure: 1, LED red light power supply and switch, 2, LED red light rule, 3, LED lamp source " F ", 4, convex lens, 5, object of reference " F " and optical screen, 6, crossbeam, 7, support.

Embodiment

Below in conjunction with accompanying drawing and preferred embodiment, demonstrating experiment device embodiment, feature and effect thereof to the novel convex lens imaging principle according to the utility model proposes, be described in detail as follows.

Referring to Fig. 1-2, a kind of demonstrating experiment device of novel convex lens imaging principle, comprise rule, light source, convex lens 4, object of reference " F " and optical screen 5, crossbeam 6 and support 7, rule is LED red light rule 2, be contained in the front of support 7, LED red light power supply and switch 1 are contained in one end of support 7, and crossbeam 6 is contained on support 7; Light source is LED lamp source " F " 3, according to the image-forming principle of convex lens, LED lamp source " F " 3, convex lens 4, object of reference " F " and optical screen 5 is contained on crossbeam 6 by slide; Optical screen 5 has added an image the same with light source " F " above.

The utlity model has following characteristics:

The above, it is only preferred embodiment of the present utility model, not the utility model is done to any pro forma restriction, any technical solutions of the utility model content that do not depart from, any simple modification, equivalent variations and the modification above embodiment done according to technical spirit of the present utility model, all still belong in the scope of technical solutions of the utility model.

Claims

1. the demonstrating experiment device of a novel convex lens imaging principle, it is characterized in that: comprise rule, light source, convex lens (4), object of reference " F " and optical screen (5), crossbeam (6) and support (7), rule is LED red light rule (2), be contained in the front of support (7), LED red light power supply and switch (1) are contained in one end of support (7), and crossbeam (6) is contained on support (7); Light source is LED lamp source " F " (3), and LED lamp source " F " (3), convex lens (4), object of reference " F " and optical screen (5) are contained on crossbeam (6) by slide; On optical screen (5), added one with the same image of light source " F ".

2. the demonstrating experiment device of novel convex lens imaging principle as claimed in claim 1, is characterized in that: " 0 " point on described rule is to start from convex lens, extends respectively to two ends with different colours, and scale registration is large and have a flicker effect of LED lamp.