CN218975048U

CN218975048U - Pinhole imaging principle experiment teaching aid

Info

Publication number: CN218975048U
Application number: CN202223233303.7U
Authority: CN
Inventors: 王延荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-12-04
Filing date: 2022-12-04
Publication date: 2023-05-05
Anticipated expiration: 2032-12-04

Abstract

The utility model provides a pinhole imaging principle experiment teaching aid, includes base, motion module, control module, baffle module, light source screen and imaging plate, baffle module installs on motion module, the base includes footing, deck plate, imaging plate fixed bolster and light source screen fixed bolster, the footing is installed in deck plate below, imaging plate installs on imaging plate fixed bolster, the light source screen is installed on light source screen fixed bolster, motion module installs in deck plate top, motion module includes motor, motor mount, lead screw support frame, polished rod mount, the motor is installed on motor mount, the lead screw is installed between lead screw support frame and motor, control module installs on deck plate. The utility model has the advantages that: the device can safely observe the pinhole imaging principle, accurately measure the image distance and the object distance, is convenient for students to operate by hands, and improves teaching efficiency.

Description

Pinhole imaging principle experiment teaching aid

Technical Field

The utility model relates to an experiment teaching aid, in particular to an experiment teaching aid based on a pinhole imaging principle, and belongs to the technical field of teaching aids.

Background

A plate with small holes is used for shielding between the wall body and the object, the object is reflected on the wall body, and the phenomenon is called small hole imaging. The size of the image on the wall will also change with the middle plate moving back and forth, which is an indication of the light traveling straight. In physical classes we often use candles, aperture screens and frosted glass screens to observe the aperture imaging principle. The candle was lit and the height of the candle and screen were adjusted so that the flame, aperture and frosted glass screen of the candle were approximately in line with the center. The distance between the candle and the small hole screen is not too large. After adjustment, a real image of the inverted candle flame can be seen on the ground glass screen. However, this experimental mode brings fire risk and is not suitable for students to operate. Moreover, the image distance and the object distance in the existing experimental mode are inconvenient to measure, so that students are inconvenient to study the relationship among the image, the object, the image distance and the object distance.

Therefore, a pinhole imaging principle experiment teaching aid is urgently needed at present, can safely observe the pinhole imaging principle and accurately measure the sizes of image distance and object distance, is convenient for students to operate by hands, and improves teaching efficiency.

Disclosure of Invention

Aiming at the defects, the utility model provides a pinhole imaging principle experiment teaching aid.

The utility model is realized by the following technical scheme: the utility model provides a pinhole imaging principle experiment teaching aid, includes base, motion module, control module, baffle module, light source screen and imaging plate, its characterized in that: the baffle module is installed on the motion module, the base includes footing, deck plate, imaging plate fixed bolster and light source screen fixed bolster, the footing is installed in deck plate below, imaging plate installs on imaging plate fixed bolster, the light source screen is installed on light source screen fixed bolster, the motion module is installed in deck plate top, the motion module includes motor, motor mount, lead screw support frame, polished rod mount, the motor is installed on the motor mount, the lead screw is installed between lead screw support frame and motor, the polished rod is installed on the polished rod mount, control module installs on the deck plate, control module includes shell, controller, button one, button two, charactron display one and charactron display two, the baffle module includes baffle, aperture, ultrasonic ranging module one, screw hole, guide cylinder and ultrasonic ranging module two.

Preferably, the light source screen may display different patterns.

Preferably, the threaded hole is matched with the screw rod, and the guide cylinder is matched with the polish rod.

Preferably, the controller is an STC89C52RC singlechip.

Preferably, the imaging plate, the baffle and the light source screen are the same size.

The utility model has the advantages that:

1. the utility model adopts the light source screen to display different patterns, and has high safety.

2. The utility model adopts the first ultrasonic ranging module and the second ultrasonic ranging module to measure the image distance and the object distance, and has high accuracy.

Drawings

FIG. 1 is a schematic diagram of the overall structure of an embodiment of the present utility model;

FIG. 2 is a schematic view of a base structure according to an embodiment of the present utility model;

FIG. 3 is a schematic diagram of a motion module according to an embodiment of the present utility model;

FIG. 4 is a schematic diagram of the front structure of a baffle according to an embodiment of the present utility model;

FIG. 5 is a schematic view of the back structure of a baffle according to an embodiment of the present utility model;

FIG. 6 is a schematic circuit diagram of a control module according to an embodiment of the present utility model;

fig. 7 is a schematic structural diagram of a control module according to an embodiment of the present utility model.

In the figure, 1, a base, 101, a footing, 102, a table board, 103, an imaging board fixing support, 104, a light source screen fixing support, 2, a motion module, 201, a motor, 202, a motor fixing support, 203, a polished rod fixing support, 204, a polished rod, 205, a screw rod, 206, a screw rod supporting frame, 3, a control module, 301, a shell, 302, a controller, 303, a key one, 304, a key two, 305, a nixie tube display one, 306, a nixie tube display two, 4, a baffle module, 401, a baffle, 402, a small hole, 403, an ultrasonic ranging module one, 404, a threaded hole, 405, a guide cylinder, 406, an ultrasonic ranging module two, 5, a light source display screen, 6 and an imaging board.

Detailed Description

The following description of the embodiments of the present utility model will be made more apparent and fully hereinafter with reference to the accompanying drawings, in which some, but not all embodiments of the utility model are shown. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Please refer to fig. 1-6, a small hole imaging principle experiment teaching aid, which comprises a base 1, a motion module 2, a control module 3, a baffle module 4, a light source screen 5 and an imaging plate 6, and is characterized in that: the baffle module 4 is installed on the moving module 2, the base 1 comprises a foot 101, a table panel 102, an imaging plate fixing support 103 and a light source screen fixing support 104, the foot 101 is installed below the table panel 102, the imaging plate 6 is installed on the imaging plate fixing support 103, the light source screen 5 is installed on the light source screen fixing support 104, the moving module 2 is installed above the table panel 102, the moving module 2 comprises a motor 201, a motor fixing frame 202, a screw rod 205, a screw rod supporting frame 206, a polished rod 204 and a polished rod fixing frame 203, the motor 201 is installed on the motor fixing frame 202, the screw rod 205 is installed between the screw rod supporting frame 206 and the motor 201, the polished rod 204 is installed on the polished rod fixing frame 203, the control module 3 is installed on the table panel 102, the control module 3 comprises a shell 301, a controller 302, a first button 303, a second button 304, a first digital tube display 305 and a second digital tube display 306, and the baffle module 4 comprises a baffle 401, a small hole 402, a first ultrasonic ranging module 403, a threaded hole 404, a guide cylinder 405 and a second ultrasonic ranging module 406.

Preferably, the light source screen 5 may display different patterns.

Preferably, the threaded hole 404 is matched with the screw rod 205, and the guide cylinder 405 is matched with the polish rod 204.

Preferably, the controller 302 is an STC89C52RC single-chip microcomputer.

Preferably, the imaging plate 6, the shutter 401 and the light source screen 5 are the same size.

Working principle: when the display device is used, the light source screen displays patterns after a power supply is connected, the patterns on the light source screen display inverted real images on the imaging plate through small holes on the baffle plate, the ultrasonic ranging module I of the baffle plate module measures the distance between the baffle plate and the imaging plate in real time, namely the image distance L1, the ultrasonic ranging module II of the baffle plate module measures the distance between the baffle plate and the light source screen in real time, namely the object distance L2, the image distance and the object distance are displayed on the nixie tube display I and the nixie tube display II on the control module, the ruler is further used for measuring the real image size H1 on the imaging plate and the pattern size H2 on the light source screen, and then H1=H2 is obtained by pressing the key I/L2.

Alterations, modifications, substitutions and variations of the embodiments herein will be apparent to those of ordinary skill in the art in light of the teachings of the present utility model without departing from the spirit and principles of the utility model.

Claims

1. The utility model provides a pinhole imaging principle experiment teaching aid, includes base, motion module, control module, baffle module, light source screen and imaging plate, its characterized in that: the baffle module is installed on the motion module, the base includes footing, deck plate, imaging plate fixed bolster and light source screen fixed bolster, the footing is installed in deck plate below, imaging plate installs on imaging plate fixed bolster, the light source screen is installed on light source screen fixed bolster, the motion module is installed in deck plate top, the motion module includes motor, motor mount, lead screw support frame, polished rod mount, the motor is installed on the motor mount, the lead screw is installed between lead screw support frame and motor, the polished rod is installed on the polished rod mount, control module installs on the deck plate, control module includes shell, controller, button one, button two, charactron display one and charactron display two, the baffle module includes baffle, aperture, ultrasonic ranging module one, screw hole, guide cylinder and ultrasonic ranging module two.

2. A pinhole imaging principle experiment teaching aid as claimed in claim 1, wherein: the light source screen may display different patterns.

3. A pinhole imaging principle experiment teaching aid as claimed in claim 1, wherein: the threaded hole is matched with the screw rod, and the guide cylinder is matched with the polish rod.

4. A pinhole imaging principle experiment teaching aid as claimed in claim 1, wherein: the controller is an STC89C52RC singlechip.

5. A pinhole imaging principle experiment teaching aid as claimed in claim 1, wherein: the imaging plate, the baffle and the light source screen are the same in size.