CN206819630U - Combined optical mirror device for university physics experiment - Google Patents

Abstract

The utility model discloses a kind of Experiment of College Physics combination mirror assembly, including：Base, support base, mirror holder, lamp bracket and projection arrangement, base top are provided with permanent magnetism iron bar, and support base includes support block, supporting plate and adapter sleeve, and supporting plate bottom is fixed at the top of support block, and top connection branch sleeve, support block bottom embeds permanent magnetism piece；Mirror holder and lamp bracket bottom are provided with connecting pole, and lens are provided with mirror holder, bulb is provided with lamp bracket；Projection arrangement includes two support bars and spool, support bar it is vertical be arranged on base, volume is provided with curtain outside spool.Therefore, the utility model passes through longitudinal setting permanent magnetism iron bar on base, and permanent magnet pieces are installed in the support base bottom for placing light source and lens, so as to being fixed on multiple lens and light stability on base, and the adjustment of distance between the combination of a variety of different lens and lens can be realized by converting and moving mirror holder, so as to improve the accuracy of experiment, the complexity of device is reduced.

Description

Combined optical mirror device for university physics experiment

technical field

The utility model relates to the field of teaching equipment, in particular to a combined optical mirror device for university physics experiments.

Background technique

With the development of teaching career and the improvement of teaching quality, more and more teaching equipment are used in the teaching of various subjects. Since physics teaching is a natural subject that is most closely related to real life, for example, when learning about light propagation and imaging, a variety of experimental equipment such as light mirrors is needed to assist teaching, so that students can intuitively grasp it.

The optical mirror experimental devices in the prior art can only observe the effect of a single lens on the light propagation characteristics due to the simplicity of a large number of optical mirror experimental devices. In order to observe the propagation change characteristics of the same light passing through different lenses, by opening multiple slots on the base and realizing the combination of various lenses through structures such as springs, an experimental device that can combine various lenses is provided.

However, in the prior art, the combined light-mirror device for physical experiments sets the position of the lens through the slot, so that the position of the lens is fixed, and the manufacturing is complicated, thereby reducing the accuracy of the experiment and increasing the manufacturing cost and complexity.

Utility model content

The utility model provides a combined optical mirror device for university physics experiments, which solves the problems of low accuracy and complicated manufacture of the combined optical mirror device for university physics experiments in the prior art.

The utility model provides a combined optical mirror device for university physics experiments, comprising: a base, a plurality of support bases, a plurality of mirror frames, lamp stands and a projection device, the top of the base is longitudinally provided with a permanent magnet bar, and the support base includes A support block, a support plate and a connecting sleeve, the bottom of the support plate is fixed on the top of the support block, the top is connected to the connecting sleeve, and a permanent magnet is embedded in the bottom of the support block; the mirror frame and the The bottom end of the lamp stand is provided with a connecting column for inserting the connecting sleeve, and a light bulb is arranged inside the lamp stand; the projection device includes two support rods and a reel, and the two support rods are installed vertically on the One end of the base, the two ends of the reel are respectively connected to the tops of the two support rods, and the reel is wound with a curtain.

Preferably, scales are provided on both sides of the permanent magnet bar of the combined optical mirror device for university physics experiments provided by the utility model.

Preferably, vertical reference lines are provided on the central axes of the two opposite sides of the support block of the combined optical mirror device for university physics experiments provided by the utility model, and the surfaces where the two reference lines are located are in line with the The curtains are parallel.

In summary, the combined light mirror for university physics experiments provided by the utility model is provided with a permanent magnet strip vertically on the base, and a permanent magnet sheet is installed at the bottom of the support seat where the light source and the lens are placed, so that multiple The lens and the light source are stably fixed on the base, and the combination of various lenses and the adjustment of the distance between the lenses can be realized by changing and moving the frame. Therefore, the accuracy of the experiment is improved, the complexity of the device is reduced, and the manufacturing cost is reduced.

Description of drawings

Fig. 1 is a schematic structural diagram of a combined optical mirror device for university physics experiments provided by an embodiment of the present invention.

Description of reference signs: 100-base, 101-permanent magnet bar, 200-support base, 201-support block, 202-support plate, 203-connecting sleeve, 204-permanent magnet sheet, 205-connecting column, 206-reference Line, 300-frame, 301-lens, 400-light stand, 401-bulb, 500-projection device, 501-support rod, 502-reel, 503-curtain.

detailed description

The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of them. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

For the convenience of understanding and description, the combined optical mirror device for university physics experiments of the embodiment of the present invention will be described in detail below through FIG. 1 . FIG. 1 is a schematic structural view of a combined optical mirror device for university physics experiments provided by an embodiment of the present invention. As shown in Figure 1, the device may include:

Base 100, multiple support bases 200, multiple mirror frames 300, lamp stand 400 and projection device 500, the top of base 100 is longitudinally provided with permanent magnet bar 101, support base 200 includes support block 201, support plate 202 and connecting sleeve 203 , the bottom of the support plate 202 is fixed on the support block 201, the top is connected to the connection sleeve 203, and the bottom of the support block 201 is embedded with a permanent magnet piece 204; column 205, and the diameter of connecting column 205 is smaller than the inner diameter of connecting sleeve 203, lens 301 is provided in mirror frame 300, bulb 401 is provided in lamp frame 400; projection device 500 includes two support rods 501 and reel 502, two support rods 501 is installed vertically at one end of the base 100 , and the two ends of the reel 502 are respectively connected to the tops of the two support rods 501 , and the reel 502 is rolled with a curtain 503 .

Specifically, in the embodiment of the present utility model, a cuboid base 100 can be provided at first, and a groove is provided on the top surface of the cuboid along the long side direction, and a permanent magnet bar equal to the long side of the cuboid is embedded in the groove provided. 101. In addition, multiple support seats 200 are provided, that is, a block-shaped support block 201 may be provided first. It should be understood that the support block 201 may be a cube or a cylinder, and the present invention is not limited thereto. Then, a vertical support plate 202 is fixedly arranged on the support block 201, and a connecting sleeve 203 is connected to the top of the support plate 202, so as to form a stable placement structure for the lens or light source. It should also be understood that in order for the support block 201 to be stably placed on the base 100 without slipping or falling, a permanent magnet piece 204 needs to be embedded in the bottom of the support block 201 . At the same time, in order to cooperate with the connecting sleeves 203 on a plurality of supporting bases 200, a plurality of mirror frames 300 for placing different lenses 301 can be provided, and a connecting column 205 that can be inserted into the connecting sleeve 203 is provided at the bottom of the mirror frames 300 , so that the erection of the lens can be realized. It should be understood that the lens 301 in the mirror frame 300 in this utility model can be a concave lens, a convex lens, a concave-convex lens or a convex-concave lens. Similarly, a connecting post 205 inserted into the connecting sleeve 203 on one of the supporting bases 200 can be provided at the lower end of the lamp holder 400 to realize erection of the lamp cannon 401 . Finally, a projection device 500 needs to be installed at one end of the base 200 for demonstration of experimental results. The projection device 500 can be realized by arranging two vertical support rods 501 on one end surface of the base 200 and erecting a reel 502 on the top of the support rods 501 . It should be understood that a plurality of different curtains 503 are set on the reel 502 .

In practical applications, firstly, the combination method and type of the lenses 301 can be specifically selected according to experimental requirements. And select the wavelength of the light that needs to be tested, that is, determine the color of the bulb 401, or use the LED to emit light to set the light source as a laser with a single wavelength. Then turn on the switch of the light bulb 401, and open the curtain. Finally, adjust the focal length by constantly moving the distance between each lens, and observe the image projected on the screen. And by changing the bulb 401, observe the effect of the lens 301 on the propagation of different light. For example, the propagation characteristics of light of different wavelengths, such as refraction, can be observed by changing bulbs 401 of different colors.

Preferably, in order to improve the accuracy of the experiment, the combined optical mirror device for university physics experiments in the embodiment of the present invention can be provided with scales on both sides of the permanent magnet strip 101 . Therefore, the distance between each lens, the lens and the light source, and the distance between the lens and the screen can be accurately measured.

Further, in order to increase the measurement accuracy, a vertical reference line 206 can also be set on the central axis of the two opposite sides of the support block 201 . That is, the planes where the two reference lines 206 are located are parallel to the screen.

In summary, the combined light mirror for university physics experiments provided by the utility model is provided with a permanent magnet strip vertically on the base, and a permanent magnet sheet is installed at the bottom of the support seat where the light source and the lens are placed, so that multiple The lens and the light source are stably fixed on the base, and the combination of various lenses and the adjustment of the distance between the lenses can be realized by changing and moving the frame. Therefore, the accuracy of the experiment is improved, the complexity of the device is reduced, and the manufacturing cost is reduced.

The above disclosures are only a few specific embodiments of the present invention, but the embodiments of the present invention are not limited thereto, and any changes conceivable by those skilled in the art should fall within the scope of protection of the present invention.

Claims (3)

1. A kind of 1. Experiment of College Physics combination mirror assembly, it is characterised in that including：Base (100), multiple support bases (200), multiple mirror holders (300), lamp bracket (400) and projection arrangement (500), base (100) top longitudinal direction are provided with permanent magnet Bar (101), the support base (200) include support block (201), supporting plate (202) and branch sleeve (203), the supporting plate (202) bottom is fixed at the top of the support block (201), and top connects the branch sleeve (203), the support block (201) Bottom is embedded with permanent magnet pieces (204)；The mirror holder (300) and the lamp bracket (400) bottom, which are provided with, to be used to insert the connection The connecting pole (205) of sleeve (203), the mirror holder (300) is interior to be provided with lens (301), and bulb is provided with the lamp bracket (400) (401)；The projection arrangement (500) includes two support bars (501) and spool (502), and two support bars (501) are vertical Be arranged on the base (100) one end, the both ends of the spool (502) are connected to two support bars (501) Top, the spool (502) is rolled up outside is provided with curtain (503).
2. 2. Experiment of College Physics according to claim 1 combination mirror assembly, it is characterised in that the permanent magnetism iron bar (101) both sides are provided with scale.
3. 3. Experiment of College Physics according to claim 2 combination mirror assembly, it is characterised in that the support block (201) central axis of two relative sides is provided with vertical reference line (206), the institute of two reference lines (206) It is parallel with the curtain in plane.