CN208156910U

CN208156910U - Object screen with light source

Info

Publication number: CN208156910U
Application number: CN201820630746.4U
Authority: CN
Inventors: 许文杰; 李莉; 张秀梅; 王廷志
Original assignee: Jiangnan University
Current assignee: Jiangnan University
Priority date: 2018-04-28
Filing date: 2018-04-28
Publication date: 2018-11-27
Anticipated expiration: 2028-04-28

Abstract

Object screen with light source, including concave mirror and object screen, there are three the fixation holes for being mutually 120 degree for the edge fixed setting of the concave mirror, lower part is provided with socket, there are two circle hole shape electrodes for the setting of socket top, two circle hole shape electrodes are connect with two one metal wires in conducting wire respectively, the object screen is thin cuboid, cylindrical bar is fixedly installed among its underpart, centre is provided with " 1 " font loophole, the setting of the left side face ring loophole of object screen is there are three the nut with adaptation on screw rod, each screw rod and meets：When socket is located at concave mirror lower part, three screw rods can be pierced by from corresponding three fixation holes respectively, and the concave mirror, object screen are each made of a metal, and socket is made of insulator.

Description

Object screen with light source

Technical field

The utility model is true to test clothing arts, is related to a kind of object screen with light source.

Background technique

Focal distance of thin convex lens measurement is an infrastest in Experiment of College Physics, and object screen and light source are point in laboratory at present It opens, when experiment needs to adjust light source and object screen, causes the inconvenience in experiment.

Summary of the invention

In view of the deficiencies of the prior art, provided by the utility model is a kind of object screen with light source, can directly be used, and is only needed Instrumentality screen.

Technical solution adopted by the utility model to solve its technical problems is：As shown in Figure 1, Figure 2, Figure 3 and Figure 4, band The object screen of light source, including concave mirror and object screen, the edge of the concave mirror are fixedly installed there are three the fixation hole for being mutually 120 degree, Lower part is provided with socket, the setting of socket top there are two circle hole shape electrode, two circle hole shape electrodes respectively with two in conducting wire Wire electrical connection, the object screen are thin cuboid, are fixedly installed cylindrical bar among its underpart, centre is provided with " 1 " word Shape loophole, nut of the left side face ring loophole setting of object screen there are three screw rod, with adaptation on each screw rod are simultaneously full Foot：When socket is located at concave mirror lower part, three screw rods can be pierced by from corresponding three fixation holes respectively, the concave mirror, object Screen is each made of a metal, and socket is made of insulator.

In use, two pins of pin small bulbs are inserted on two electrodes of socket, socket is made to be located at concave mirror Lower part, allow three screw rods to be pierced by from corresponding three fixation holes respectively, three nuts be screwed to respectively on three screw rods, are made Concave mirror is integrally formed with object screen, cylindrical bar is inserted into optical bench, the external 12V DC power supply of power supply line can be used.

The utility model has the beneficial effects that novel in design, structure is simple, is readily produced, convenient and practical.

Detailed description of the invention

Fig. 1 is the utility model structure diagram,

Fig. 2 is the structural schematic diagram of concave mirror 3,

Fig. 3 is socket 2-1 and pin small bulbs 3-1 connection figure,

Fig. 4 is the structural schematic diagram of object screen 1.

In figure：1- object screen 2- loophole 3- concave mirror 4- nut 5- fixation hole 2-1- socket 2-2- electrode 3-1- Pin small bulbs 3-2- power supply line 4-1- screw rod

Specific embodiment

Detailed the embodiments of the present invention with reference to the accompanying drawing：

As shown in Figure 1, Figure 2, Figure 3 and Figure 4, the object screen with light source, including concave mirror 3 and object screen 1, the concave mirror 3 Edge fixed setting is there are three the fixation hole 5 for being mutually 120 degree, and lower part is provided with socket 2-1, and there are two the settings of the top socket 2-1 Circle hole shape electrode 2-2, two circle hole shape electrode 2-2 are electrically connected with two one metal wires in conducting wire 3-2 respectively, and the object screen 1 is Thin cuboid is fixedly installed cylindrical bar 6 among its underpart, centre is provided with " 1 " font loophole 2, the left side of object screen 1 The setting of ring loophole 2 is there are three the nut 4 with adaptation on screw rod 4-1, each screw rod 4-1 and meets：Socket 2-1 is located at When 3 lower part of concave mirror, three screw rod 4-1 can be pierced by from corresponding three fixation holes 5 respectively, and the concave mirror 3, object screen 1 are equal It is made of metal, socket 2-1 is made of insulator.

In use, two pins of pin small bulbs 3-1 are inserted on two electrode 2-2 of socket 2-1, make socket 2- 1 is located at the lower part of concave mirror 3, allows three screw rod 4-1 to be pierced by from corresponding three fixation holes 5 respectively, three nuts 4 are distinguished It is screwed on three screw rod 4-1, is integrally formed concave mirror 3 with object screen 1, cylindrical bar 6 is inserted into optical bench, outside power supply line 3-2 Connecing 12V DC power supply can be used.

Claims

1. the object screen with light source, including concave mirror and object screen, it is characterised in that：There are three the edge fixed settings of the concave mirror It is mutually 120 degree of fixation hole, lower part is provided with socket, and there are two circle hole shape electrode, two circle hole shape electrodes for the setting of socket top Connect respectively with two one metal wires in conducting wire, the object screen is thin cuboid, be fixedly installed among its underpart cylindrical bar, Centre is provided with " 1 " font loophole, and the left side face ring loophole setting of object screen is suitable there are three having on screw rod, each screw rod The nut matched simultaneously meets：When socket is located at concave mirror lower part, three screw rods can be pierced by from corresponding three fixation holes respectively.

2. the object screen according to claim 1 with light source, it is characterised in that：The concave mirror, object screen are each made of a metal, Socket is made of insulator.