CN2158120Y

CN2158120Y - Rotary light source type optical experimental instrument

Info

Publication number: CN2158120Y
Application number: CN 93218783
Authority: CN
Inventors: 蓝学军
Original assignee: Individual
Current assignee: Individual
Priority date: 1993-07-13
Filing date: 1993-07-13
Publication date: 1994-03-02
Anticipated expiration: 2003-07-13

Abstract

The utility model relates to a rotary light source type optical experimental instrument for teaching. The utility model is composed of an optical disc 1, a rotary light source and a base 21, wherein, the optical disc forms the shape of a transparent flat cylindrical box; a water filling hole is arranged above the optical disc, and the lower half part of the optical disc is used as a water container; a rotatable dial (4) is installed in the optical disc. The rotary light source can rotate around the optical disc. The utility model can be used for observing the energy change of the reflection ray and the refraction ray, reading out the critical angle of water to air and validating the refractivity of the water to the air. The optical experimental instrument has the advantages of simple structure, small size, light weight and wide application range.

Description

Rotary light source type optical experimental instrument

The utility model relates to a kind of real dangerous instrument of optics of the usefulness of imparting knowledge to students, especially a kind of rotary light source formula reflection of light refraction experimental instrument that not only can be used as class demonstration but also student experimenting can be provided.

At present, to do experiments such as reflection of light, refraction be to adopt rotation solid medium and your optical disc of the fixing Hart of light source, this apparatus structure complexity in the middle school, member is many, needs one civil power is depressurized to the large-scale light source of 12V, and not only volume is big, cost height, and carrying and the equal inconvenience of operation." using the optics experiment instrument " that the Chinese patent communique is announced (notification number: CN2075374U), just the beam condensing unit to the optical test instrument improves, and directional light tool and index dial are fixing uncontrollable, thus the reliability and the effect of influence test. more

The purpose of this utility model is to overcome defective of the prior art, provides a kind of simple in structure, and light source is rotatable, and index dial can be regulated, and safeguards and rotary light source formula optical test instrument easy to carry.

The utility model is made of CD, rotary light source and base three parts.CD is that cylinder is flat box-like, adopts transparent material to make.The CD top has water filling port, and its Lower Half is as water container.Be provided with rotating near rear end face in the CD and indicate the index dial of scale.Rotary light source comprises shell, bulb, convergent lens and changes bulb and the adjusting volution of assembling lens distance.One end of spiral arm is the rotary light source shell fixedly, and the middle and lower part of spiral arm is fixed on the mandrel of CD, can rotate and is fixed on any position thereupon around CD.The lower end of rotary light source shell is provided with the slit cover, and the slit length direction on its slit cover is parallel with the cylindrical bus of CD, to obtain the required parallel plate light beam of test.The CD front end face is fixed with the transparent plate washer that exceeds the index dial parting line, and this plate washer and base link, and the height of base should guarantee that rotary light source is positioned at lowest part and does not collide with stilt.

Accompanying drawing 1 is a front view of the present utility model;

Accompanying drawing 2 is right side views of accompanying drawing 1.

Below in conjunction with accompanying drawing the utility model embodiment is done further narration.

With the axis hole of spiral arm 14, spring shim 20 is inserted on the mandrel of CD 1 rear end face, screws on nut spiral arm is connected with CD.Rotary light source shell 6 connects with CD 1 by spiral arm 14, shakes rotary handle 17 rotary light source is rotated around CD 1.CD adopts transparent organic glass to make, and index dial 4 is contained in the CD 1.The mandrel of CD rear end face can not be given prominence to the surface of index dial, in order to avoid shelves are lived light path.The periphery of index dial is shown the plane for black and is white.The index dial surface should not produce direct reflection, so the surface answers hacking, and 360 evenly divideds.Vertical curve is 0 degree line (normal), and horizontal line is 90 degree lines (parting line).The plate washer 2 that CD 1 front end face adopts the useful transparent organic glass of adhesive securement to make.The upper end of plate washer 2 exceeds 20 millimeters of index dial parting lines.Insert in the respective grooves of base 21 extension 3 of plate washer 2, and CD and base are connected as a single entity.Bulb 10 is screwed in the lamp socket 8, and lamp socket 8 back are provided with the elastic metallic push rod that contacts with bulb 10 afterbodys all the time, and this push rod top has and regulates the screw thread that volution 9 is meshed.By regulating volution 9, make the slit in the light transmission slit cover 7, thereby on index dial 4, parallel beam occurs to regulate the distance of 11 of bulb 10 and convergent lenses.Rotate setting nut 12,, make rotary light source do the pitching action, thereby obtain by the complete and bright light beam in index dial 4 centers by the effect of the doubling rubber gasket 13 between rotary light source shell 6 and the spiral arm 14.

During test, inject in it, reach the center of index dial 4, stir the protruding handle 5 of index dial that stretches out the corresponding opening of CD, the parting line on the index dial is overlapped with the water surface until the water surface with the water filling port of clean cold water from CD 1 top.Be to enlarge the scope of application, power supply of the present utility model can be supplied with from the battery the battery case 15, can also be with civil power by the rectification step-down after binding post 18 supplies.Battery case 15, telegraph key 16, turn handle 17, binding post 18 all are contained on the spiral arm 14.

The characteristics such as the utlity model has simple in structurely, volume is little, and is in light weight, safeguards and easy to carry, applied widely. The position of rotating spiral arm change light source can change the incidence angle of light, The energy variation of observable reflection ray and refracted ray; Read water to the critical angle of air, can verify that also water is to the refractive index of air. If semicircle glass block of adapted then can be obtained glass to water or the water relative index of refraction to glass, is a kind of comparatively ideal teaching test instrument.

Claims

1, a kind of rotary light source formula Experiments of Optics instrument, by CD (1), light source and base (21) constitute, it is characterized in that CD (1) is that to adopt transparent material to make cylinder flat box-like, its top has water filling port, the CD Lower Half is as water container, front end face is fixed with the transparent plate washer (2) that exceeds the index dial parting line, be provided with the index dial (4) that turns and indicate scale near rear end face in the CD, rotary light source comprises shell (6), bulb (10), convergent lens (11) and change bulb and the adjusting volution (12) of assembling lens distance, spiral arm (14) one ends are rotary light source shell (6) fixedly, the spiral arm middle and lower part is fixed on the mandrel of CD (1), can rotate around CD, rotary light source shell (6) lower end is provided with slit cover (7), its slit is parallel with the cylindrical bus of CD (1), base (21) links with plate washer (2), and the height of base should guarantee that rotary light source is positioned at lowest part and does not collide with stilt.

2, Experiments of Optics instrument according to claim 1 is characterized in that the protruding handle of index dial (5) stretches out from CD (1) corresponding opening, to regulate index dial parting line horizontal level.

3, Experiments of Optics instrument according to claim 1 and 2 is characterized in that lamp socket (8) back is provided with the elastic metallic push rod that contacts with bulb tail all the time, and this push rod top has and regulates the screw thread that volution (9) is meshed.

4, Experiments of Optics instrument according to claim 3 is characterized in that spiral arm (14) connects with the mandrel of CD (1) by spring shim (20) and nut, is provided with the rubber gasket (13) of doubling between spiral arm and the rotary light source shell (6).

5, Experiments of Optics instrument according to claim 3 is characterized in that battery case (15), telegraph key (16), rotary handle (17), binding post (18) are installed on the spiral arm (14).

6, Experiments of Optics instrument according to claim 5 is characterized in that plate washer (2) and CD front end face are bonded as one, and the extension (3) of plate washer below can be inserted in the groove of base (21).