CN211479470U

CN211479470U - Dark box for optical experiment

Info

Publication number: CN211479470U
Application number: CN202020021371.9U
Authority: CN
Inventors: 不公告发明人
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-01-06
Filing date: 2020-01-06
Publication date: 2020-09-11
Anticipated expiration: 2030-01-06

Abstract

The utility model discloses a camera bellows for optical experiment. The utility model discloses, including the box, the bottom fixed mounting of box has the indicator, one side fixed mounting anchor clamps of indicator, and the inside fixed mounting of anchor clamps has the connecting rod, and the surface movable mounting of connecting rod has splint. The utility model discloses, through taking out a supporting cylinder from anchor clamps, rotatory screw thread section of thick bamboo, adjust the height and the horizontal angle of this camera bellows, when the inside bubble of indicator is located the intermediate position, represent this camera bellows and be in the horizontality, when experimenting, put into light through the light trap, and observe light reflection to the observation panel on through the speculum, the rotary drum of installation on the rotatory speculum can also be passed through simultaneously, and through the angle scale on the rotary drum, observe under the different reflection angles, the change of figure on the observation panel, this camera bellows not only keep and the level between the experimental objective, improve the accuracy of experiment, still observe the light change under the different reflection angles.

Description

Dark box for optical experiment

Technical Field

The utility model relates to the field of optical technology, specifically a camera bellows for optics experiments.

Background

The camera bellows is also called a cassette, and is an optical instrument that can project an image on a screen. The concept of a dark box has emerged earlier in the era. Since the beginning of the 15 th century, it was used by artists as an aid to painting. By the end of the 18 th century, some photographic pioneers performed photographic experiments with a dark box. Through the sealed box with the small hole on one side, the scene outside the box penetrates through the small hole, and an image which is reversed and has two opposite sides is formed on the completely dark inner wall of the box. This was also the earliest form of camera.

The camera bellows can be used in partial optical experiment, however, because the experiment is placed the region and is not completely horizontal, consequently, lead to the camera bellows to be in non-horizontality and carry out the experiment, this has also led to having certain contained angle between camera bellows and the experimental object, and then can appear great deviation when calculating the angle, influence the accuracy of experiment.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera bellows for optics experiments to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a camera bellows for optical experiments, includes the box, the bottom fixed mounting of box has the indicator, one side fixed mounting anchor clamps of indicator, the inside fixed mounting of anchor clamps has the connecting rod, the surface movable mounting of connecting rod has splint, the lateral wall fixed mounting spring of splint, one side fixed mounting of anchor clamps has the fixed block, there is a support section of thick bamboo bottom of fixed block through pivot movable mounting, the bottom fixed mounting who supports a section of thick bamboo has a screw thread section of thick bamboo, there is the threaded rod inside of screw thread section of thick bamboo through threaded connection, the inside movable mounting of box has the speculum, the top fixed mounting of speculum has the observation plate, the top movable mounting of box has the apron, the lateral wall fixed mounting of box has the light trap, the lateral wall fixed mounting of box has the braces.

Preferably, the number of the clamps is four, and the four clamps are symmetrically distributed on two sides of the indicator by taking the indicator as a symmetry axis.

Preferably, the shape of splint is the arc of radian and threaded rod looks adaptation, the quantity of splint is two and distributes in the inside of anchor clamps and two in the form of symmetry the interval between the splint has the diameter that is less than the threaded rod.

Preferably, the installation position of the indicator is located at the center of two sides of the bottom end of the box body, a water pipe with air bubbles inside is arranged inside the indicator, and a red marked line is arranged at the center of the water pipe.

Preferably, the bottom of the reflector is provided with a rotating drum, the rotating drum penetrates through the side wall of the box body and extends to the outside of the box body, and a circular ring carved with an angle mark is fixedly arranged on the periphery of the rotating drum positioned on the outer side.

Preferably, the number of the fixed blocks is four, and the four fixed blocks are symmetrically arranged at four top corners of the bottom of the box body.

Compared with the prior art, the beneficial effects of the utility model are that: the camera bellows for optical experiments is characterized in that when the camera bellows is placed at an experimental position by taking out the supporting cylinder from the clamp, the height of the dark box is adjusted by rotating the threaded cylinder and utilizing the thread action between the threaded cylinder and the threaded rod, the horizontal angle of the dark box is adjusted according to the water bubble in the middle indicator, when the bubble in the indicator is in the middle position, the dark box is in a horizontal state, and when the experiment is carried out, by opening the upper shielding plate of the light hole, putting light into the light hole and reflecting the light to the observation plate through the reflector for observation, meanwhile, the change of the graph on the observation board under different reflection angles can be observed by rotating the rotary drum arranged on the reflector and by the angle scale on the rotary drum, the dark box not only keeps the level between the light box and an experimental target, improves the accuracy of the experiment, but also observes the light change under different reflection angles.

Drawings

Fig. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the internal structure of the case of the present invention;

fig. 3 is the schematic diagram of the internal structure of the clamp of the present invention.

In the figure: the device comprises a box body 1, an indicator 2, a clamp 3, a connecting rod 4, a clamping plate 5, a spring 6, a fixing block 7, a supporting barrel 8, a threaded barrel 9, a threaded rod 10, a reflector 11, an observation plate 12, a cover plate 13, a light hole 14 and a strap 15.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-3, the present invention provides an embodiment: the utility model provides a camera bellows for optics experiments, the power distribution box comprises a box body 1, the bottom fixed mounting of box 1 has indicator 2, the mounted position of indicator 2 is located the center department of 1 bottom both sides of box, the inside of indicator 2 is provided with the water pipe that has the bubble in, the center department of above-mentioned water pipe is equipped with the mounted position of red mark line indicator 2 and is located the center department of 1 bottom both sides of box, the inside of indicator 2 is provided with the water pipe that has the bubble in, the center department of above-mentioned water pipe is equipped with red marking, one side fixed mounting anchor clamps 3 of indicator 2, the quantity of anchor clamps 3 is four, four anchor clamps 3 use indicator 2 to be the both sides of symmetry axis symmetric distribution in indicator 2, the inside fixed mounting of anchor clamps 3 has connecting rod 4, the surface movable mounting of connecting rod 4 has splint 5, splint 5's shape is the arc of radian and threaded rod 10 looks adaptation, the quantity of splint 5 is two and is the form distribution in the inside of anchor clamps 3 The diameter of a threaded rod 10, a spring 6 is fixedly installed on the side wall of a clamping plate 5, a fixed block 7 is fixedly installed on one side of a clamp 3, the number of the fixed blocks 7 is four, the four fixed blocks 7 are symmetrically arranged at four top corners of the bottom of a box body 1, a supporting cylinder 8 is movably installed at the bottom of each fixed block 7 through a rotating shaft, a threaded cylinder 9 is fixedly installed at the bottom of the supporting cylinder 8, the threaded rod 10 is connected inside the threaded cylinder 9 through threads, a reflecting mirror 11 is movably installed inside the box body 1, a rotating cylinder is installed at the bottom of the reflecting mirror 11, the rotating cylinder penetrates through the side wall of the box body 1 and extends to the outside of the box body 1, a circular ring carved with angle marks is fixedly installed at the periphery of the rotating cylinder at the outer side, an observation plate 12 is fixedly installed at the top of the reflecting mirror 11, the side wall of the box body 1 is fixedly provided with a strap 15.

The working principle is as follows: when in use, the supporting cylinder 8 is taken out from the clamp 3, when the dark box is placed at an experimental position, the height of the dark box is adjusted by rotating the threaded cylinder 9 and utilizing the threaded action between the threaded cylinder 9 and the threaded rod 10, the horizontal angle of the dark box is adjusted according to the water bubble inside the middle indicator 2, when the air bubble inside the indicator 2 is positioned at the middle position, the dark box is in a horizontal state, when in experiment, the light is placed in by opening the shielding plate on the light transmitting hole 14 and utilizing the light transmitting hole 14, and is reflected to the observation plate 12 by the reflector 11 for observation, simultaneously, the change of the figure on the observation plate 12 under different reflection angles can be observed by rotating the rotary drum arranged on the reflector 11 and utilizing the angle scale on the rotary drum, after the use is finished, the threaded rod 10 is rotated to the lowest distance, and then the threaded rod 10 is fixed by rotating the clamp plate 5 arranged in the clamp 3, and the threaded rod 10 is clamped by the clamp plate 5 under the action of the spring 6.

It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or scope of the present invention. Accordingly, the embodiments of the present invention are exemplary, and not limiting. The scope of the invention is indicated by the appended claims rather than by the foregoing description, and all changes that come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a camera bellows for optical experiments, includes box (1), its characterized in that: the bottom of the box body (1) is fixedly provided with an indicator (2), one side of the indicator (2) is fixedly provided with a clamp (3), the inside of the clamp (3) is fixedly provided with a connecting rod (4), the outer surface of the connecting rod (4) is movably provided with a clamp plate (5), the side wall of the clamp plate (5) is fixedly provided with a spring (6), one side of the clamp (3) is fixedly provided with a fixed block (7), the bottom of the fixed block (7) is movably provided with a supporting cylinder (8) through a rotating shaft, the bottom of the supporting cylinder (8) is fixedly provided with a threaded cylinder (9), the inside of the threaded cylinder (9) is connected with a threaded rod (10) through threads, the inside of the box body (1) is movably provided with a reflector (11), the top of the reflector (11) is fixedly provided with an observation plate (12), and the top of the box body (1, the lateral wall fixed mounting of box (1) has light trap (14), the lateral wall fixed mounting of box (1) has braces (15).

2. The camera bellows of claim 1, wherein: the number of the clamps (3) is four, and the four clamps (3) are symmetrically distributed on two sides of the indicator (2) by taking the indicator (2) as a symmetry axis.

3. The camera bellows of claim 1, wherein: the shape of splint (5) is the arc of radian and threaded rod (10) looks adaptation, the quantity of splint (5) is two and is the form distribution of symmetry in the inside of anchor clamps (3) and two interval between splint (5) has the diameter that is less than threaded rod (10).

4. The camera bellows for optical experiments according to claim 1), characterized in that: the mounting position of the indicator (2) is located in the centers of two sides of the bottom end of the box body (1), a water pipe with air bubbles inside is arranged inside the indicator (2), and red marked lines are arranged in the center of the water pipe.

5. The camera bellows of claim 1, wherein: the bottom of the reflector (11) is provided with a rotating drum, and the rotating drum penetrates through the side wall of the box body (1), extends to the outside of the box body (1), and is fixedly provided with a circular ring carved with an angle mark at the periphery of the rotating drum positioned at the outer side.

6. The camera bellows of claim 1, wherein: the number of the fixed blocks (7) is four, and the four fixed blocks (7) are arranged at four top corners at the bottom of the box body (1) in a mutually symmetrical mode.