CN111768684A

CN111768684A - Telescope teaching aid

Info

Publication number: CN111768684A
Application number: CN201910259555.0A
Authority: CN
Inventors: 谭桐举
Original assignee: Beijing Martian Vision Technology Co ltd
Current assignee: Beijing Martian Vision Technology Co ltd
Priority date: 2019-04-02
Filing date: 2019-04-02
Publication date: 2020-10-13

Abstract

The embodiment of the invention provides a telescope teaching aid, which relates to the technical field of physical teaching, and comprises: the device comprises an outer barrel, an inner barrel, an objective lens clamping piece arranged on the outer barrel, an ocular lens clamping piece arranged on the inner barrel, an ocular lens and an objective lens; the eyepiece is installed on the inner cylinder, the objective lens is installed on the outer cylinder, and the inner cylinder is installed inside the outer cylinder and performs focus adjustment in a stretching mode. The telescope teaching aid provided by the embodiment of the invention has the characteristics of detachability and convenience for installation, is suitable for teaching demonstration, can visually display the internal structure of the telescope, is convenient for students to understand the working principle of the telescope, and is favorable for improving the teaching quality.

Description

Telescope teaching aid

Technical Field

The invention relates to the technical field of physical teaching, in particular to a telescope teaching aid.

Background

The telescopes sold in the market are various in types, the application scenes are quite wide, and the telescopes are used in the case of ascending, looking away, field exploration and the like. However, the telescopes sold in the market are mainly directed to the practical application of the telescope, so that the telescopes in the market are generally not detachable, and can only be used for operation, and therefore the specific principle of the telescope cannot be intuitively understood. In view of this, the embodiment of the invention provides a telescope teaching aid, which is disassembled and assembled so that students can intuitively understand the working principle of a telescope and the internal structure of the telescope.

Disclosure of Invention

The invention aims to provide a telescope teaching aid, which is used for enabling students to intuitively understand the working principle of a telescope and the internal structure of the telescope by disassembling and assembling the telescope teaching aid.

In order to achieve the purpose, the embodiment of the invention discloses a telescope teaching aid, which comprises an outer cylinder, an inner cylinder, an objective lens clamping piece arranged on the outer cylinder, an eyepiece lens clamping piece arranged on the inner cylinder, an eyepiece lens and an objective lens, wherein the inner cylinder is provided with a clamping groove; the eyepiece is installed on the inner cylinder, the objective lens is installed on the outer cylinder, and the inner cylinder is installed inside the outer cylinder and performs focus adjustment in a stretching mode.

Preferably, the eyepiece is a concave lens and the objective lens is a convex lens.

Preferably, the outer cylinder and the inner cylinder are respectively provided with a first clamping groove and a second clamping groove which are respectively used for placing the objective lens and the eyepiece.

Preferably, one end of the inner cylinder, which is far away from the eyes of people, is provided with a damping ring.

Preferably, the damping ring is made of pearl wool.

Preferably, one end of the outer cylinder close to the human eyes is provided with an antiskid projection.

Preferably, the inner side of the inner cylinder is made of a frosted material.

Preferably, the objective lens clamping piece is connected with the outer cylinder in a threaded mounting mode or a plug-in mounting mode, and the eyepiece lens clamping piece is connected with the inner cylinder in a threaded mounting mode or a plug-in mounting mode.

Preferably, the telescope teaching aid further comprises a fixed support or an adjustable support.

Preferably, the outer barrel and the inner barrel are made of environment-friendly materials.

The embodiment of the invention provides a telescope teaching aid which comprises an outer cylinder, an inner cylinder, an objective lens clamping piece arranged on the outer cylinder, an eyepiece lens clamping piece arranged on the inner cylinder, an eyepiece lens and an objective lens, wherein the inner cylinder is provided with a clamping groove; the eyepiece is installed on the inner cylinder, the objective lens is installed on the outer cylinder, and the inner cylinder is installed inside the outer cylinder and performs focus adjustment in a stretching mode. The telescope teaching aid provided by the embodiment of the invention has the characteristics of detachability and convenience for installation, is suitable for teaching demonstration, can visually display the internal structure of the telescope, is convenient for students to understand the working principle of the telescope, and is favorable for improving the teaching quality.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

FIG. 1 is a schematic diagram of an optical path of a telescope according to an embodiment of the present invention;

FIG. 2 is a schematic view of a telescope teaching aid according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a telescope teaching aid according to an embodiment of the invention, with parts disassembled;

FIG. 4a is a schematic view of a telescope teaching aid according to an embodiment of the present invention in a compressed state;

FIG. 4b is a schematic drawing showing the stretching state of a telescope teaching aid according to an embodiment of the present invention;

FIG. 5 is a schematic structural view of a damper disposed on an inner cylinder according to an embodiment of the present invention;

fig. 6 is a schematic structural view of an anti-slip projection provided on an outer cylinder according to an embodiment of the present invention.

The reference numbers in the drawings:

10 outer cylinder

20 inner cylinder

30 objective lens clamping piece

40 eyepiece clamping piece

50 damping ring

60 anti-slip bulge

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

A telescope is an optical instrument that uses lenses or mirrors, as well as other optical devices, to view a remote object. As shown in fig. 1, a schematic optical path diagram of a telescope provided by an embodiment of the present invention is obtained by refracting light passing through a lens or reflecting light by a concave mirror so that the light enters a pinhole and is focused to form an image, and the image is viewed through a magnifying eyepiece. The first function of the telescope is to magnify the field angle of a distant object, so that the human eye can see details with smaller angular distance. The telescope is used for transmitting the light beam collected by the objective lens and much thicker than the pupil diameter (maximum 8 mm) into human eyes, so that the observer can see the dark and weak objects which cannot be seen originally.

As described above, although there are many kinds of telescopes on the market, the eyepiece and the objective lens of the telescope sold on the market are not detachable for physical teaching, and it is difficult for students to see the eyepiece formed by the concave lens and the objective lens formed by the convex lens, and to intuitively understand the focal lengths of the convex lens and the concave lens.

In view of this, in order to enable students to intuitively understand the working principle of the telescope and the internal structure of the telescope, the embodiment of the invention provides a telescope teaching aid, and the telescope teaching aid provided by the embodiment of the invention is described in detail below.

Referring to fig. 2 and 3, the telescope teaching aid according to the embodiment of the present invention may include an outer cylinder 10, an inner cylinder 20, an objective lens clamp 30 mounted on the outer cylinder 10, an eyepiece lens clamp 40 mounted on the inner cylinder 20, an eyepiece lens (not shown), and an objective lens (not shown); wherein the eyepiece is mounted on the inner cylinder 20, and the objective lens is mounted on the outer cylinder 10, as shown in fig. 4a and 4b, the inner cylinder 20 is mounted inside the outer cylinder 10, and performs focus adjustment in a stretching manner.

Specifically, the objective lens clamping piece is connected with the outer barrel in a threaded mounting mode or a plug-in mounting mode, and the eyepiece lens clamping piece is connected with the inner barrel in a threaded mounting mode or a plug-in mounting mode.

It should be noted that each component of the telescope prop provided by the embodiment of the invention is detachable, the eyepiece and the objective lens can be replaced by different magnification factors, and in the teaching process, students can know the internal structure of the telescope and the working principle of the telescope by detaching the telescope prop into each component and assembling each component, so that teaching through lively activities is realized, and the teaching quality is improved.

In a preferred implementation, the inner side of the inner barrel 20 is a frosted material. It should be noted that, because the frosted material is non-planar, the mirror reflection can be greatly reduced when the light irradiates the inner cylinder wall made of the material, the influence of stray light in the telescope tube is reduced, and a better visual effect can be obtained.

In one specific implementation, the eyepiece is a concave lens and the objective lens is a convex lens. Preferably, the outer cylinder 10 and the inner cylinder 20 are respectively provided with a first clamping groove and a second clamping groove for placing an objective lens and an eyepiece.

It should be noted that the above-mentioned "first locking groove" and "second locking groove" are only used to distinguish the locking grooves on the outer barrel 10 and the inner barrel 20, and are not used to limit the locking grooves. It should be further noted that, in the embodiment of the present invention, the number of the first card slot and the second card slot is not required to be limited, that is, the number of the objective lens and the number of the eyepiece lens are not required to be limited in the embodiment of the present invention, and a person skilled in the art needs to perform reasonable setting according to specific situations in practical applications, for example, 1 group of eyepiece lenses and 2 groups of eyepiece lenses can be set.

As shown in FIG. 5, the end of the inner barrel 20 away from the eye is provided with a damping ring. It can be understood that, in order to make the inner tube and the urceolus of telescope teaching aid can be stabilized in a certain relative position and can not slide at will in the reasoning process, promote operation experience.

In a specific implementation manner, the damping ring is made of pearl wool. It should be noted that the damping ring mentioned here is only a specific form provided by the embodiment of the present invention, and those skilled in the art can make reasonable choice according to the specific situation in the practical application.

As shown in FIG. 6, the outer cylinder 10 is provided with a non-slip protrusion at one end near the eyes. It can be understood that the friction coefficient between one end of the outer barrel close to human eyes and fingers can be increased by arranging the anti-skid protrusions, so that the telescope is prevented from slipping off.

It should be noted that, the small-sized hand-held telescope generally used by an individual is not suitable for using an excessive magnification, generally 3 to 12 times, and when the magnification is too large, the imaging definition will be deteriorated, and the shaking is serious, so the telescope exceeding 12 times is generally fixed by using a tripod and the like. Therefore, the telescope teaching aid provided by the embodiment of the invention can further comprise a fixed bracket or an adjustable bracket. It should also be noted that those skilled in the art can make appropriate settings according to the specific situation in the practical application.

In a preferred implementation manner, the materials of the outer cylinder 10 and the inner cylinder 20 are both environment-friendly materials.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention shall fall within the protection scope of the present invention.

Claims

1. A telescope teaching aid is characterized by comprising an outer barrel, an inner barrel, an objective lens clamping piece arranged on the outer barrel, an eyepiece lens clamping piece arranged on the inner barrel, an eyepiece lens and an objective lens, wherein the eyepiece lens clamping piece is arranged on the inner barrel; the eyepiece is installed on the inner cylinder, the objective lens is installed on the outer cylinder, and the inner cylinder is installed inside the outer cylinder and performs focus adjustment in a stretching mode.

2. A telescope teaching aid as claimed in claim 1, wherein the eyepiece is a concave lens and the objective lens is a convex lens.

3. A telescope teaching aid as claimed in claim 1, wherein the outer barrel and the inner barrel are provided with first and second slots, respectively, for receiving an objective lens and an eyepiece, respectively.

4. The telescope teaching aid of claim 1, wherein the end of the inner barrel away from the eye is provided with a damping ring.

5. The telescope teaching aid of claim 4, wherein the damping ring is made of pearl wool.

6. A telescope teaching aid as claimed in any one of claims 1 to 5, wherein the outer barrel is provided with anti-slip lugs at its end adjacent to the eyes.

7. A telescope teaching aid as claimed in any of claims 1 to 5, wherein the inner barrel is frosted on its inside.

8. A telescope teaching aid as claimed in any one of claims 1 to 5, wherein the objective clamp is connected to the outer barrel in a threaded or plug-in mounting manner, and the eyepiece clamp is connected to the inner barrel in a threaded or plug-in mounting manner.

9. A telescope teaching aid as claimed in any of claims 1 to 5, further comprising a fixed or adjustable mount.

10. A telescope teaching aid as claimed in any one of claims 1 to 5, wherein the outer barrel and the inner barrel are both made of environmentally friendly materials.