CN210269115U - Fixing device of long-focus optical lens - Google Patents

Abstract

The embodiment of the utility model provides a long burnt optical lens's fixing device for the projection detects, include: the device comprises a device base, a guide pillar, a device front barrel and a lens front group fixing sleeve, wherein the device base is connected with the device front barrel through the guide pillar, and the lens front group fixing sleeve is connected with the device front barrel. The embodiment of the utility model provides a pair of telephoto optical lens's fixing device, effectual telephoto lens of having solved is first great, and the action of gravity of first half leads to the camera lens skew to give the fixed position and drop downwards, and this tool is perfect to have improved this shortcoming, makes optical lens keep the level, improves optical lens subassembly equipment yield, keeps the stability that the camera lens detected.

Description

Fixing device of long-focus optical lens

Technical Field

The utility model relates to a camera technical field especially relates to a long burnt optical lens's fixing device.

Background

With the continuous innovation and development of science and technology, the requirements of people on an optical system are also continuously improved, and the common fixed-focal-length lens cannot meet the requirements of people on the overview of a large-area object and the resolution of a small-area object at the same time. Compared with a fixed-focus lens, the zoom lens can adjust the imaging magnification by changing the focal length, and the general and detailed observation of a target object can be conveniently realized. It is clearly very meaningful to design a high performance zoom system. At present, the zoom system is applied in visible light and near infrared spectrum regions, and the contradiction between the long focal length and the high zoom ratio and the limitation of the length and the volume of the system causes the design of the high zoom ratio wide spectrum zoom system to be difficult. The lens can be generally divided into a common telephoto lens (the focal length is between 80 and 300 millimeters) and a chao telephoto lens (the focal length is between 300 and 2000 millimeters) according to the length of the focal length, and the telephoto lens has a large volume. The telephoto lens is used more when shooting scenes which are not easy to approach, and can fully show the advantages of the telephoto lens in capturing scenes of instantaneous dynamic and sports of people, various wild animals and the like. With this lens, the perspective of the picture is reduced, and the perspective of the foreground and background is not changed much. The lens has long focal length and small depth of field range, so that the focusing is accurate when the lens is used.

The market of long-focus and high-magnification-variation lenses is the main trend in the future, so that the large lens needs to be fixed by a jig in the detection process so as to avoid the lens inclination and influence the judgment of the resolving power.

Inspection of the telephoto lens is usually done manually by screwing the lens into the projector. In the detection process, the telephoto lens is relatively large, and the lens deviates from the preset position and falls downwards due to the gravity action of the front half part, so that the optical lens is inclined, the assembly yield of the optical lens assembly is low, and the stability of lens detection is further required.

SUMMERY OF THE UTILITY MODEL

An embodiment of the utility model provides a fixing device of long burnt optical lens to overcome prior art's defect.

In order to achieve the purpose, the utility model adopts the following technical scheme.

The utility model provides a following scheme:

a fixing device of a long-focus optical lens for projection detection comprises: the device comprises a device base, a guide pillar, a device front barrel and a lens front group fixing sleeve, wherein the device base is connected with the device front barrel through the guide pillar, and the lens front group fixing sleeve is connected with the device front barrel.

Preferably, the device base is connected with one end of the lens, and the device front barrel is connected with the other end of the lens.

Preferably, the device base, the guide post, the device front barrel and the lens front group fixing sleeve are detachably connected.

Preferably, the device base, the device front barrel and the lens front group fixing sleeve are made of stainless steel materials.

Preferably, the guide pillar is made of alloy materials.

Preferably, the device base, the device front barrel and the lens front group fixing sleeve are made of SUS304 materials.

Preferably, the guide pillar is made of A5056 material.

By the above-mentioned the embodiment of the utility model provides a technical scheme can see out, the embodiment of the utility model provides a pair of telephoto optical lens's fixing device, effectual telephoto lens that has solved is first great, and the action of gravity of first half leads to the camera lens skew to give the fixed position and drop downwards, and this tool is perfect has improved this shortcoming, makes optical lens keep the level, improves optical lens subassembly equipment yield, keeps the stability that the camera lens detected.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 is a schematic structural view of a fixing device for a telephoto optical lens according to an embodiment of the present invention.

Reference numerals:

1, a device base; 2, guiding a column; 3, mounting a front barrel; 4 lens front group fixing sleeve

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below by referring to the drawings are exemplary only for explaining the present invention, and should not be construed as limiting the present invention.

As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" or "coupled" to another element, it can be directly connected or coupled to the other element or intervening elements may also be present. Further, "connected" or "coupled" as used herein may include wirelessly connected or coupled. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.

For the convenience of understanding the embodiments of the present invention, the following description will be given by way of example only with reference to the accompanying drawings, and the embodiments are not limited thereto.

The embodiment of the utility model provides a pair of telephoto optical lens's fixing device for the projection detects, as shown in FIG. 1, include: the device comprises a device base 1, a guide post 2, a device front barrel 3 and a lens front group fixing sleeve 4, wherein the device base 1 is connected with the device front barrel 3 through the guide post 2, and the lens front group fixing sleeve 4 is connected with the device front barrel 3.

The device base 1 is connected with one end of the lens, and the device front barrel 3 is connected with the other end of the lens and used for ensuring that the lens is fixedly connected with the jig.

The device base 1, the guide post 2, the device front barrel 3 and the lens front group fixing sleeve 4 are detachably connected.

The device base 1, the device front barrel 3 and the lens front group fixing sleeve 4 are made of stainless steel materials, and particularly SUS304 can be selected.

The guide post 2 is made of alloy material, and particularly A5056 material can be selected.

When in use, the method comprises the following specific steps:

firstly, screwing a device base of a fixing device of a long-focus optical lens into the upper surface of a projector by using threads;

secondly, placing the lens between a front barrel and a base of the device;

thirdly, screwing the front group fixing sleeve into the front barrel of the device by using threads to tightly press the front group;

fourthly, the gradienter is placed above the lens front group fixing sleeve to confirm whether the gradienter is level

And fifthly, projection operation inspection.

To sum up, the embodiment of the utility model provides a through a long burnt optical lens's fixing device, through fixing device's device base and the preceding fixed lens of device, device base and projector fixed connection, the effectual optical lens slope problem of having solved can improve optical lens's equipment yield.

Those of ordinary skill in the art will understand that: the figures are schematic representations of one embodiment, and the blocks or processes in the figures are not necessarily required to practice the present invention.

Those of ordinary skill in the art will understand that: the components in the devices in the embodiments may be distributed in the devices in the embodiments according to the description of the embodiments, or may be correspondingly changed in one or more devices different from the embodiments. The components of the above embodiments may be combined into one component, or may be further divided into a plurality of sub-components.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any changes or substitutions that can be easily conceived by those skilled in the art within the technical scope of the present invention should be covered by the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims (7)

1. A fixing device of a long-focus optical lens for projection detection is characterized by comprising: the device comprises a device base, a guide pillar, a device front barrel and a lens front group fixing sleeve, wherein the device base is connected with the device front barrel through the guide pillar, and the lens front group fixing sleeve is connected with the device front barrel.

2. The fixture of claim 1, wherein the device base is connected to one end of the lens and the device front barrel is connected to the other end of the lens.

3. The fixture of claim 1, wherein the fixture base, the guide post, the fixture front barrel, and the lens front group fixing sleeve are detachably connected.

4. The fixture of claim 1, wherein the fixture base, the fixture front barrel, and the lens front group fixing sleeve are made of stainless steel.

5. The fixture of claim 1, wherein the guide post is made of an alloy material.

6. The mount of claim 1, wherein the mount base, the mount front barrel and the lens front group mount sleeve are made of SUS304 material.

7. The fixture of claim 1 wherein the guide post is a5056 material.

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