WO2019127825A1

WO2019127825A1 - Installation structure of optical lens

Info

Publication number: WO2019127825A1
Application number: PCT/CN2018/074741
Authority: WO
Inventors: 徐应荣; 侯海雄; 李屹
Original assignee: 深圳光峰科技股份有限公司
Priority date: 2017-12-25
Filing date: 2018-01-31
Publication date: 2019-07-04
Also published as: CN207742395U

Abstract

An installation structure (1) of an optical lens (2), comprising a positioning part (11) used for determining the position of the optical lens (2) and a fixing assembly (12) used for fixing a support member (3) of the optical lens (2), wherein the optical lens (2) is removably arranged on the positioning part (11) by means of a vacuum adsorption manner; the support member (3) of the optical lens (2) is assembled on the positioning part (11) of the installation structure of the optical lens (2) by means of the fixing assembly (12). By means of the positioning part (11) of the installation structure (1) of the optical lens (2), the positioning of the optical lens (2) is achieved, thus replacing an existing positioning part (11) which is directly processed on the support member (3) of the optical lens (2), and reducing processing difficulty and production costs, such that the structure is simple, the usage is convenient, the adjustment of the optical lens (2) is facilitated, the reliability of the installed product is high, and good user experience is achieved.

Description

Optical lens mounting structure

Technical field

The utility model relates to the field of optics, in particular to an optical lens mounting structure.

Background technique

At present, optical lenses such as mirrors are widely used in optical systems, and these optical lenses require high fixation reliability and positioning accuracy.

technical problem

Because in the optical path, the mirror will reflect the error of the deflection angle twice to the outgoing light, so the accuracy of the optical lens fixing is generally higher, especially the deflection angle accuracy of the mirror is relatively higher. At the same time, there will be high requirements for its long-term reliability. In the actual optical system application scheme, an optical lens such as a mirror is fixed by using a non-adjustable structure with high processing precision as an optical lens fixing structure, and an optical lens such as a mirror is fixed by elastic plate fixing or glue bonding. On the support member, this solution requires high processing precision and consistency of the support structure and cannot be mass-produced. Another solution is to fix the optical lens such as the mirror on the support by means of elastic or adhesive bonding by using the adjustable optical lens and the fixed support structure, and then optically detecting the optical path. The method adjusts the angle of the optical lens to a desired angle, but the cost of this method is relatively high, and the volume of the adjustment mechanism is also limited by the space of the optical system. In addition, for an optical system that uses multiple optical lenses simultaneously, This kind of adjustment method is time-consuming and laborious, which seriously affects the production efficiency and reliability of the product.

Therefore, it is necessary to provide a new optical lens mounting structure to solve the above problems.

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Technical solution

The technical problem mainly solved by the utility model is to provide a novel optical lens mounting structure to solve the problems of low production efficiency and low reliability of the optical lens of the optical system in the prior art.

In order to solve the above technical problem, a technical solution adopted by the present invention is to provide an optical lens mounting structure, comprising: a positioning portion, and a fixing component that is combined with the positioning portion to form an accommodation space, wherein the positioning portion is a ladder a structure and including at least one positioning step for positioning the optical lens.

Preferably, the fixing assembly comprises a pressing plate and a fastening structure on both sides of the pressing plate.

Preferably, the optical lens mounting structure comprises at least two positioning steps, and the positioning step comprises a positioning surface having an inclined angle, wherein the inclination angles of the at least two positioning surfaces are the same or different.

Preferably, the fastening structure has two states of use that cause the pressure plate to close or open.

Preferably, the fastening structure comprises a nip and a connecting portion, and the connecting portion is connected to the positioning portion.

Preferably, the connecting portion is fixed on the positioning portion by a slot, a bolt or a welding.

Preferably, the lower surface of the pressure plate is provided with a protrusion or a groove matching the optical lens support for housing the optical lens housed in the accommodating space.

Preferably, the length and width of the positioning surface are greater than the length and width of the optical lens.

Preferably, the positioning surface is provided with at least one vacuum adsorption hole.

Preferably, a detection hole is disposed on a sidewall of the positioning portion opposite to the positioning surface.

Beneficial effect

The utility model has the beneficial effects that the optical lens mounting structure comprises a positioning portion for determining the position of the optical lens and a fixing component for fixing the optical lens supporting member, which is different from the prior art. The optical lens is removably disposed on the positioning portion by vacuum adsorption, and the optical lens support is assembled on the positioning portion of the optical lens mounting structure by the fixing component. The utility model realizes the positioning of the optical lens through the positioning part of the optical lens mounting structure, replaces the existing processing positioning part directly on the optical lens support member, reduces the processing difficulty and the production cost, and has the advantages of simple structure, convenient use and convenient optical lens. The adjustment and the reliability of the product after installation have a good user experience.

DRAWINGS

1 is a schematic exploded view of the optical lens mounting structure of the present invention;

2 is a top view of the positioning portion of the optical lens mounting structure of the present invention

3 is a view showing a state of use of the optical lens mounting structure of the present invention;

Fig. 4 is a view showing a state of use of another state of the optical lens mounting structure of the present invention.

Embodiments of the invention

It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in FIG. 1 , it is a schematic exploded view of the optical lens mounting structure of the present invention; as shown in FIG. 2 , it is a use state diagram of the optical lens mounting structure of the present invention.

The optical lens mounting structure 1 of the present invention is used to assist in positioning the optical lens 2, and the optical lens 2 is fixed on the optical lens support 3.

The optical lens 2 is a planar lens, and in the present embodiment, is a rectangular planar mirror. In some embodiments of the present invention, the planar lens may also be designed as a circular, trapezoidal or other irregular pattern. In another embodiment, the optical lens may also be a non-planar reflective concave mirror, a convex mirror or the like. The optical lens support 3 includes a mounting portion 31 for mounting the optical lens 2 and a fixing portion 32 connected to the mounting portion 31.

The optical lens mounting structure 1 includes a positioning portion 11 for positioning a mounting position of the optical lens 2, an accommodating space for accommodating the optical lens support 3, and a fixing assembly 12 for fixing the optical lens support 3. The optical lens support 3 is assembled by the fixing assembly 12 on the positioning portion of the optical lens mounting structure.

The positioning portion 11 is a stepped structure, and includes at least two positioning steps 111 for positioning the optical lens 2. The positioning step 111 is precision machined, and the positioning surface 1110 conforming to the inclination angle of the optical lens is disposed thereon. The connection faces of the respective positioning faces 1110 are connected. The positioning surface 1110 is highly accurate. The shape of the positioning surface 1110 is a rectangle that cooperates with the optical lens 2. In some embodiments, the shape of the positioning surface 1110 may also be a circular shape, a trapezoidal shape or other irregular patterns. In practical applications, the shape selection of the positioning surface 1110 is required. The space limitation of the support member 3 and the fixing reliability of the optical lens 2 are considered. Preferably, the length and width of the positioning surface 1110 are greater than the width of the optical lens 2. The optical lens 2 can be directly fixed on the positioning surface 1110 by vacuum adsorption to meet the installation requirements of the optical lens. Further, a detecting hole 112 is disposed on a side wall of the positioning portion 11 on the side opposite to the positioning surface. After the angle of the optical lens 2 is positioned, the tilt angle of the optical lens 2 and the mounting are performed by the laser light passing through the detecting hole 112. The position is tested for further adjustment.

As shown in FIG. 2, FIG. 2 is a top view of the positioning surface 1110 of the present invention. The optical lens 2 is fixed on the positioning surface 1110 by vacuum adsorption. As shown in the figure, the positioning surface 1110 is provided with a vacuum adsorption hole 1111. Preferably, the vacuum suction hole 1111 is shown at a position directly at the center of the positioning surface 1110. In some embodiments, the vacuum suction hole shown may also be disposed at a position other than the left-right of the positioning surface 1110. In some embodiments, two or two vacuum adsorption holes may be disposed on the positioning surface 1110. Taking two vacuum adsorption holes as an example, the two vacuum adsorption holes are respectively located at the left and right center positions of the positioning surface. As shown in the figure, the present embodiment has three vacuum adsorption holes, one of the three vacuum adsorption holes is positioned at the center of the positioning surface 1110, and the other two are respectively located at the left and right center positions of the positioning surface 1110. Of course, for the installation of larger optical lenses, there may be more than three vacuum adsorption holes, and the number of vacuum adsorption holes needs to be considered in consideration of the size and shape of the optical lens. In the present embodiment, the positioning portion 11 is provided with a plurality of positioning surfaces 1110, so that a plurality of sets of optical lenses can be simultaneously fixed, and the plurality of positioning surfaces 1110 are respectively finely processed to meet the installation requirements of the corresponding optical lenses. For example, mounting angles, flatness requirements, etc.; of course, in alternative embodiments, only one optical lens can be mounted in the manner of the present invention.

In some embodiments, the inclination angles of the plurality of positioning surfaces 1110 may be the same or different, and may be designed according to the optical path requirements of the optical lens support to be installed, and the inclination of the plurality of positioning surfaces 1110 of the present invention. The angle is the same.

The fixing assembly 12 includes a pressing plate 121 and a fastening structure 122 on both sides of the pressing plate 121. Wherein the plywood 121 and the fastening structure 122 are separate arrangements, the fastening structure 122 has two states of use that cause the optical lens mounting structure to be closed or opened. The fastening structure 122 includes a nip portion and a connecting portion, and the connecting portion of the fastening structure 122 is fixed to the positioning portion 11 of the optical lens mounting structure by a slot, a bolt or a welding. After the optical lens support 3 is mounted in the accommodating space of the optical lens mounting structure 1, the pressure plate 121 is mounted on the optical lens mounting structure 1 and abuts on a side surface of the optical lens support 3 facing away from the positioning portion. Subsequently, the fastening structure 122 is adjusted to the closed state, and the optical lens support member 3 is fixed on the optical lens mounting structure by applying pressure to both sides of the pressure plate 121 through the nip portion. It should be noted that, at this time, the optical lens 2 is There is still a certain tolerance between the surface of the positioning portion of the optical lens support 3, in order to prevent crushing of the reflective lens, and to leave room for subsequent detection, if the reflective lens is detected to be parallel, if not Parallel can be adjusted in real time; when the fastening structure 122 is in a relaxed state, the pressing plate and the positioning portion are relaxed, and the optical lens support 3 can be removed from the positioning portion of the optical lens mounting structure. In the present embodiment, the fastening structure 122 is a buckle. Of course, in other optional embodiments, other structures may be used, such as a combination of a bolt and a nut, or a buckle and a card slot, as long as it can be implemented. It is possible to detachably fix the pressure plate 121.

Preferably, the lower surface of the pressing plate 121 is provided with a protrusion, the lower surface of the pressing plate is a surface where the pressing plate 121 and the supporting member 3 are connected to each other, and the bottom surface of the supporting member 3 is provided to be matched with the lower surface of the pressing plate 121. The groove, the bottom surface of the support member 3 refers to the side opposite to the fixing portion 32 of the support member 3. When the pressure plate 121 is mounted to the mounting structure 1, the protrusion of the lower surface of the pressure plate 121 can be quickly combined with the support member 3. The bottom surface groove is matched and positioned to accurately set the pressure plate 121 on the bottom surface of the support member 3. In a modified embodiment, the lower surface of the pressure plate 121 may be provided with a groove, and the bottom surface of the support member 3 is provided with a The protrusion matching the groove on the lower surface of the pressing plate 121 is within the protection range of the present invention as long as the structure in which the pressing plate and the support member are positioned and fixed can be realized. In addition, the positioning and matching of the pressing plate 121 and the supporting member 3 of the embodiment can prevent the deviation of the pressing plate 121 during fastening, improve the fitting precision of the supporting member 3 and the positioning portion 11, and thereby improve the planar lens in the supporting member 3. The accuracy of the fit on the top.

The above description is only an embodiment of the present invention, and thus does not limit the scope of the patent of the present invention, and the equivalent structure or equivalent flow transformation made by using the specification and the drawings of the present invention, or directly or indirectly applied to other The related technical fields are all included in the scope of patent protection of the present invention.

Claims

An optical lens mounting structure, comprising: a positioning portion, and a fixing assembly formed with the positioning portion to form an accommodation space, wherein the positioning portion is a stepped structure and includes at least one for positioning an optical lens. Position the steps.
The optical lens mounting structure according to claim 1, wherein the fixing assembly comprises a pressing plate and a fastening structure on both sides of the pressing plate.
The optical lens mounting structure according to claim 1, wherein the optical lens mounting structure comprises at least two positioning steps, the positioning step includes a positioning surface having an inclined angle, wherein the at least two positioning surfaces The angles of inclination are the same or different.
The optical lens mounting structure according to claim 2, wherein the fastening structure has two states of use that cause the pressure plate to be closed or opened.
The optical lens mounting structure according to claim 2, wherein the fastening structure includes a nip portion and a connecting portion, and the connecting portion is coupled to the positioning portion.
The optical lens mounting structure according to claim 5, wherein the connecting portion is fixed to the positioning portion by a slot, a bolt or a welding.
The optical lens mounting structure according to claim 2, wherein the lower surface of the pressure plate is provided with a protrusion or a groove matching the optical lens support for housing the optical lens housed in the accommodating space. .
The optical lens mounting structure of claim 3 wherein the length and width of the locating surface are greater than the length and width of the optical lens.
The optical lens mounting structure according to claim 3, wherein the positioning surface is provided with at least one vacuum suction hole.
The optical lens mounting structure according to claim 3, wherein a detecting hole is provided in a side wall of the positioning portion on a side opposite to the positioning surface.