CN205665944U

CN205665944U - Novel optical bench

Info

Publication number: CN205665944U
Application number: CN201620212696.9U
Authority: CN
Inventors: 张烨; 张全民
Original assignee: Individual
Current assignee: Individual
Priority date: 2016-03-18
Filing date: 2016-03-18
Publication date: 2016-10-26
Anticipated expiration: 2026-03-18

Abstract

The utility model provides a novel optical bench, includes convex lens and formation of image screen, still includes a pair of guide rail, the guide rail includes that a guide rail rod and the 2nd guide rail rod form, threaded connection is passed through to a guide rail rod's one end and the 2nd guide rail rod's one end, and a guide rail rod other end and the 2nd guide rail rod's the other end is connected with the support through the eared nut respectively, sliding connection has first slider, second slider and third slider on the guide rail, middle part one side of first slider is provided with the recess, is equipped with square nut in the recess, convex lens pass through square nut and first slider swing joint, formation of image screen joint is on the second slider, and the joint has F shape LED light source on the third slider. The utility model discloses track design becomes to dismantle the decomposition, take in and save space, F shape LED light source compare with candle flame have steadily, bright, pollution -free, the picture that makes convex lens become on the formation of image screen is more clearly stable, but and repetitious usage, the environmental protection is practical.

Description

A kind of novel optical bench

Technical field

This utility model belongs to education experiment equipment technical field, a kind of novel optical bench.

Background technology

Convex lens image-forming discipline shows it is one of the infrastest in optical phenomenon research, at the refraction list of light in junior physics Meta learning introduces this experiment, to deepen student to the understanding of the concept of the refraction of light and grasp, the traditional experiment of this experiment Method be the flame with some lighted candle as luminous body, optical bench is fixed convex lens and optical screen, by mobile luminous structural reform Become the distance between itself and convex lens, look for the position of picture, the experimental data drawn by further computing at mobile optical screen, analyze Conclude the rule of convex lens, but, the flame instability of wax candle, swing the most with the wind, the light and shade of wax candle and edge variation Inconspicuous, cause sometimes to find out on optical screen the most clearly as；The candle flame shape of its imaging is upper and lower, left and right difference is not clear Aobvious, allowing student is that the understanding of " handstand " is the most deep to real image formed by convex lens；Additionally wax candle length in combustion can be gradually Gradual change is short, and " three's " center " at same height, does not needs re-adjustments, both inconvenient, again to make luminous body, optical screen and convex lens Lose time；Organize the student test time, tens wax candles burn in the optical laboratory closed, and candle combustion produces Gas have an impact teachers and students are healthy, and candle combustion fusing drips on optical bench and desktop to be done by optical bench etc. Dirty, and its solidification removing get up the most very inconvenient；The optical bench of the most existing research convex lens image-forming discipline typically has 1 meter How long, take up room relatively big, and store very inconvenient.

Utility model content

The purpose of this utility model is to provide a kind of novel optical bench, with solve in above-mentioned background technology propose ask Topic.

For achieving the above object, this utility model provides following technical scheme: a kind of novel optical bench, including convex lens and Imaging screen, also includes that pair of guide rails, described guide rail include the first guide rail pole and the second guide rail pole composition, described first guide rail pole One end and one end of the second guide rail pole be threaded connection, the other end of the first guide rail pole other end and the second guide rail pole is respectively Being connected by wing nut and have a support, described slide on rails connects the first slide block, the second slide block and the 3rd slide block, and described the The side, middle part of one slide block is provided with groove, is provided with square nut in groove, and described convex lens is sliding by square nut and first Block is flexibly connected, and described imaging screen is connected on the second slide block, and the 3rd slide block is connected with F shape LED light source, and the second slide block and 3rd slide block is positioned at the not homonymy of the first slide block, and the front of described F shape LED light source is provided with switch, the back of the body of described F shape LED light source Face is provided with aneroid battery mounting box, and described F shape LED light source is inlayed, by F shape, the light source that arrangement is made by several light emitting diodes, Light emitting diode is parallel with one another and is connected with power supply aneroid battery by wire, is provided with graduated scale between two supports.

Preferably, it is provided with cylinder shape groove bottom described F shape LED light source.

Preferably, described imaging screen is provided with scale grid.

Preferably, described first slide block is connected with narrow meshed black plate, displaces convex lens with the aperture plate of black.

Compared with prior art, the beneficial effects of the utility model are: it is removable that the Guide Rail Design of this novel optical bench becomes Unload decomposition, during storage, detachably decompose placement, save space；The light source of the use of this optical bench is to pass through LED row The F shape LED light source arranged, F shape LED light source has stable, bright, pollution-free compared with candle flame, makes convex lens Cheng Cheng As on screen as relatively sharp stable, and the light source of F shape is the most different, and left and right is also asymmetrically shaped, contributes to The experiment law that observation of students convex lens is upper and lower, reversed left to right.This novel optical bench simple in construction, effect are obvious, storage Convenient, and can be used for multiple times, environmental protection is practical.

Accompanying drawing explanation

Fig. 1 is structural representation of the present utility model；

Fig. 2 is the structural representation of this utility model pinhole imaging system experiment；

Fig. 3 is the structural representation of F shape LED light source in this utility model；

Fig. 4 is the structural representation of this utility model middle guide；

Fig. 5 is the structural representation of square nut in this utility model.

In figure: 1, F shape LED light source, 2, convex lens, 3, imaging screen, 4, guide rail, the 41, first guide rail pole, the 42, second guide rail Bar, the 5, first slide block, 6, support, 7, switch, 8, graduated scale, 9, square nut, 10, cylinder shape groove, 11, aperture plate.

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise The every other embodiment obtained, broadly falls into the scope of this utility model protection.

Referring to Fig. 1-5, this utility model provides a kind of technical scheme: a kind of novel optical bench, including convex lens 2 with become As screen 3, also including that pair of guide rails 4, described guide rail 4 include that the first guide rail pole 41 and the second guide rail pole 42 form, described first leads One end of rail bar 41 and one end of the second guide rail pole 42 are threaded connection, first guide rail pole 41 other end and the second guide rail pole 42 The other end respectively by wing nut connect have support 6, described guide rail 4 slidably connects first slide block the 5, second slide block and 3rd slide block, the side, middle part of described first slide block 5 is provided with groove, is provided with square nut 9 in groove, and described convex lens 2 leads to Crossing square nut 9 to be flexibly connected with the first slide block 5, described imaging screen 3 is connected on the second slide block, and the 3rd slide block is connected with F Shape LED light source 1, and the second slide block and the 3rd slide block be positioned at the not homonymy of the first slide block 5, the front of described F shape LED light source 1 sets Having switch 7, the back side of described F shape LED light source 1 to be provided with aneroid battery mounting box, described F shape LED light source 1 is by several luminescences two Pole pipe inlays, by F shape, the light source that arrangement is made, and light emitting diode is parallel with one another and is connected with power supply aneroid battery by wire, two Graduated scale 8 is installed between support 6.The guide rail 4 of this novel optical bench is designed to be detachable decomposition, removable during storage Unload decomposition to place, save space, and the combination of whole optical bench or dismounting are without instrument, convenient and swift；Convex lens 2 is by square spiral shell Female 9 are flexibly connected with the first slide block 5, use external square nut 9 than when making directly fixing be molded inserts time-consuming with become This, and square nut 9 is detachable, convenient and practical；The light source of the use of this optical bench is to be arranged into by light emitting diode F shape LED light source, in the aneroid battery mounting box at the back side of F shape LED light source 1, load onto aneroid battery during use, open switch 7 i.e. Can, F shape LED light source has stable, bright, pollution-free compared with candle flame, makes convex lens become the picture on imaging screen more Steady and audible, and the light source of F shape is the most different, left and right is also asymmetrically shaped, contributes to observation of students convex lens The experiment law that imaging is upper and lower, reversed left to right；The graduated scale 8 being provided with between two supports 6, it is possible to intuitively read object distance and Image distance, quick and convenient.

Specifically, bottom described F shape LED light source 1, it is provided with cylinder shape groove 10, makes F shape LED light source 1 can pass through to be provided with Cylinder shape groove 10 be connected with respective slide by inserting metallic rod, multiple connected mode can be easy to be suitable for different light and have Seat, practical.

Specifically, described imaging screen 3 is provided with scale grid, can compare intuitively as the size with thing, draw reality Test imaging law.

Specifically, described first slide block 5 is connected with the aperture plate 11 of black, displaces convex with the aperture plate 11 of black Lens 2, can be used to observe the experiment law of pinhole imaging system, reach a kind of optical bench experimental apparatus and have several functions, save into This, improve the utilization rate of experiment equipment.

As it is shown in figure 1, convex lens experimentation: aneroid battery mounting box at the back side of F shape LED light source 1 during use Inside load onto aneroid battery, open switch 7, make F shape LED light source 1 luminous, the F shape LED light source 1 above regulation guide rail 4, convex lens 2 and The height of imaging screen 3, make their center substantially on sustained height, during experiment, first Jiao of the convex lens 2 of experiments of measuring Away from, and record, fix convex lens 2 during operation and move F shape LED light source 1, make object distance be more than two times of focal lengths, equal to two times of Jiao Away from, between one times of focal length and two times of focal lengths, equal to one times of focal length, less than one times of focal length, observe imaging law respectively.

As in figure 2 it is shown, pinhole imaging system experimentation: the experiment equipment of pinhole imaging system is exactly the tester of convex lens Convex lens 2 in the material aperture plate 11 of black replaces, and during use, the aneroid battery mounting box at the back side of F shape LED light source 1 is built-in Upper aneroid battery, opens switch 7, makes F shape LED light source 1 luminous, the F shape LED light source 1 above regulation guide rail 4, the aperture plate of black 11 and the height of imaging screen 3, make their center substantially on sustained height, fix aperture plate 11 during experiment and move F shape LED light Source 1, observes imaging law.

Embodiment the most of the present utility model, for the ordinary skill in the art, It is appreciated that in the case of without departing from principle of the present utility model and spirit and these embodiments can be carried out multiple change, repair Changing, replace and modification, scope of the present utility model is defined by the appended claims and the equivalents thereof.

Claims

1. a novel optical bench, including convex lens (2) and imaging screen (3), it is characterised in that: also include pair of guide rails (4), institute State guide rail (4) and include the first guide rail pole (41) and the second guide rail pole (42) composition, one end of described first guide rail pole (41) and the One end of two guide rail poles (42) is threaded connection, and the other end of the first guide rail pole (41) other end and the second guide rail pole (42) divides Wing nut connection Tong Guo there is not support (6), described guide rail (4) slidably connects the first slide block (5), the second slide block and the 3rd Slide block, the side, middle part of described first slide block (5) is provided with groove, is provided with square nut (9), described convex lens (2) in groove Being flexibly connected with the first slide block (5) by square nut (9), described imaging screen (3) is connected on the second slide block, on the 3rd slide block It is connected with F shape LED light source (1), and the second slide block and the 3rd slide block are positioned at the not homonymy of the first slide block (5), described F shape LED light The front in source (1) is provided with switch (7), and the back side of described F shape LED light source (1) is provided with aneroid battery mounting box, described F shape LED light source (1) inlayed the light source made of arrangement by several light emitting diodes by F shape, light emitting diode parallel with one another and by wire with Power supply aneroid battery connects, and is provided with graduated scale (8) between two supports (6).

The novel optical bench of one the most according to claim 1, it is characterised in that: described F shape LED light source (1) bottom is provided with Cylinder shape groove (10).

The novel optical bench of one the most according to claim 1, it is characterised in that: described imaging screen (3) is provided with scale net Lattice.

The novel optical bench of one the most according to claim 1, it is characterised in that: it is connected with black on described first slide block (5) The aperture plate (11) of color, displaces convex lens (2) with the aperture plate (11) of black.