TWM483443U - Optical lens - Google Patents

Description

Optical lenses

This creation is related to optics; in particular, an optical lens.

With the advancement of optical technology, optical devices such as cameras, cameras, and projectors are becoming more and more popular, and the one that has the greatest influence on the optical performance of the above optical devices is the design of its optical lens.

The optical lens composition usually includes two, one is an external lens barrel, and the other is an internal optical lens, which directly affects the optical performance of the optical lens, except for the optical design of the optical lens, the other is The error in the relative position between the optical lenses, when the error is smaller, indicates that the closer to the preset state of the design, the closer the optical lens is to the ideal.

However, when the lens is assembled, the outer circumference of the optical lens is usually pressed against the inner surface structure of the lens barrel to achieve the purpose of fixing, so that after the lens is formed, the outer circumference of the lens is usually polished or cut to make the outer circumference of the lens. The edge shape can conform to the inner shape of the lens barrel, which is not only time-consuming and labor-intensive, but also convenient for assembly, the inner diameter of the inner surface of the lens barrel is usually larger than the outer diameter of the outer circumference of the optical lens, so that the error in assembly is easy. Too large, which in turn affects the optical performance of the optical lens.

In view of this, the purpose of this creation is to provide an optical mirror. The sheet allows the relative position between the lenses to be reliably and surely fixed when the lens is assembled.

In order to achieve the above object, the optical lens provided by the present invention is made of glass, and has a first mirror surface on the opposite side and a second mirror surface, wherein the optical lens is on the surface of the side on which the first mirror surface is located. Having a positioning surface surrounding the first mirror surface and a first reference surface, the positioning surface and the first reference surface are configured to be coupled to a first positioning object to respectively fix the first mirror surface and the first surface An axially and radially opposite position between the positioning objects; the optical lens has a second reference surface disposed around the second mirror surface on a surface of the side of the second mirror surface, the second reference surface being used for a second positioning object is coupled to fix an axial relative position between the second mirror surface and the second positioning object; in addition, the optical lens has a convex protrusion disposed around an outer circumference of the optical lens, and the positioning surface The first reference surface is located between the first mirror surface and the tenon, and the second reference surface is located between the second mirror surface and the tenon.

Thereby, through the design of the optical lens and the manufacturing method thereof, the structure of the positioning surface, the first reference surface and the second reference surface can be used to assemble the optical lens without being affected by the lens barrel. The relative position between the optical lens and other positioning objects (such as other lenses or spacers, etc.) can be reliably and surely fixed.

10‧‧‧Optical lenses

11‧‧‧ first mirror

12‧‧‧Second mirror

13‧‧‧ first datum

14‧‧‧ positioning surface

15‧‧‧second datum

16‧‧‧垣

100‧‧‧First mould

110‧‧‧The first model

200‧‧‧ second mold

210‧‧‧Second mold

300‧‧‧glass materials

310‧‧‧ parts

D‧‧‧ interval

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a perspective view of an optical lens of the preferred embodiment of the present invention.

Figure 2 is a cross-sectional view of an optical lens of the preferred embodiment of the present invention.

3 to 4 are schematic views showing the main flow of manufacturing an optical lens.

In order to explain the present invention more clearly, the preferred embodiment will be described in detail with reference to the drawings. As shown in FIG. 1 and FIG. 2, the optical lens 10 of the preferred embodiment of the present invention is made of glass. And having a first mirror surface 11 and a second mirror surface 12 on opposite surfaces. The main difference between the present invention and the conventional technology is that the optical lens 10 has a first reference surface 13 and a positioning surface 14 disposed around the first mirror surface on the surface of the side of the first mirror surface 11 , and the first surface A positioning surface 14 is a beveled surface, and the first reference surface 13 is closer to the first mirror surface 11 than the positioning surface 14 so that the surface of the optical lens 10 on the side of the first mirror surface 11 is connected internally and outwardly. The first mirror surface 11 , the first reference surface 13 and the positioning surface 14 .

The function of the positioning surface 14 and the first reference surface 13 is mainly used for directly contacting a first positioning object (such as a lens, not shown) during assembly, thereby transmitting the first reference surface 13 The direct contact is achieved to achieve the effect of fixing the axial relative position between the first mirror surface 11 and the first positioning object, and at the same time, the first mirror surface 11 and the first surface are fixed by the direct contact of the positioning surface 14 The purpose of the radial relative position between the objects. In addition, an angle is formed between the first reference surface 13 and the positioning surface 14 , and the angle is an obtuse angle. The design of the obtuse angle ensures the positioning surface 14 and the first reference surface 13 . A fixing effect with the first positioning object.

In addition to the above technical features, the optical lens 10 has a second reference surface 15 disposed around the second mirror surface 12 on the surface of the side of the second mirror surface 12 for providing a second positioning during assembly. An object (such as a lens or a gasket, not shown) is coupled to fix the axial relative position between the second mirror 12 and the second spacer. It is worth mentioning that the second reference surface 15 and the first reference surface 13 are designed to be parallel to each other, and through the design, the first positioning object and the second positioning object can be effectively reduced. The error of the axial relative position between the first positioning object and the second positioning object after the two are assembled with the optical lens 10.

In this way, by using the structural design of the first reference surface 13 , the positioning surface 14 and the second reference surface 15 , the optical lens 10 and other positioning objects (such as other lenses or pads) can be reliably and reliably fixed. The relative position between the film and the like in the axial direction and the radial direction without being affected by the lens barrel or other assembly, and ensuring the optical performance of the optical lens 10 after assembly, and effectively and surely approaching the preset The ideal state.

In addition, referring to FIG. 3 to FIG. 4, the manufacturing method of the optical lens 10 described above is as follows:

As shown in FIG. 3, a first mold 100 and a second mold 200 are first obtained, and the first mold 100 has a first mold core 110, and the second mold 200 has a second mold core 210. And the second mold core 210 is facing the first mold core 110.

Then, an uncured glass raw material 300 is disposed on the first mold core 110, and the glass raw material 300 is disposed between the first mold core 110 and a second mold core 210, and the second mold 200 is moved. The first mold 100 and the second mold 200 are displaced from each other, but the first mold 100 and the second mold 200 have a space D therebetween and do not contact each other to form an open space. Of course, in actual implementation, the first mold 100 may be moved, or the first mold 100 and the second mold 200 may be simultaneously moved to achieve the same effect.

Then, as shown in FIG. 4, the second mold core 210 is pressed against the glass raw material 300, so that the glass raw material 300 faces the surface of the first mold core 110 to form a first mirror surface 11 and a first reference. The shape of the surface 13 and the positioning surface 14 is opposite to the surface of the second mold core 210, and the shape corresponding to the second mirror surface 12 and the second reference surface 15 is formed, and the glass raw material 300 is pressed to overflow. A portion 310 of the region between the first mold core 110 and the second mold core 210 is located in the space D between the first mold 100 and a second mold 200.

Finally, the glass raw material 300 is cured and moved to the second mold 200, and the surface of the glass raw material 300 contacting the first mold core 110 forms the first mirror surface 11, the positioning surface 14 and the first reference surface 13, and The second mold surface 12 and the second reference surface 15 are formed on the surface of the second mold core 210, and the first mold 100 and the second mold 200 are displaced from each other to obtain a displacement away from each other. The optical lens 10 of the type shown in FIG. 2, wherein the original glass material 300 is located at the portion 310 of the space D, forms a tenon 16 disposed around the outer periphery of the optical lens 10. More specifically, the first The reference surface 13 and the positioning surface 14 will be located between the first mirror surface 11 and the tenon 16 , and the second reference surface 15 is located between the second mirror surface 12 and the tenon 16 .

In addition, since the optical lens 10 is not directly in contact with the lens barrel (not shown) when the optical lens 10 is assembled, the first reference surface 13 , the positioning surface 14 , and the second reference surface 15 are utilized. The structure is used to fix the relative position between the optical lens 10 and other positioning objects (such as other lenses or spacers, etc.) such that the structure of the tenon 16 does not cause the optical center of the optical lens 10 to shift.

In this way, the shape of the tenon 16 does not need to be formed in a shape corresponding to the internal structure of the lens barrel, so that after the optical lens 10 is fabricated, the corresponding processing of the tenon 16 is not required. The manufacturing efficiency of the optical lens 10 can be greatly improved.

In summary, the optical lens 10 and the manufacturing method thereof of the present invention not only ensure that the position of the optical lens 10 is close to ideal when assembled, but also effectively improve the manufacturing efficiency of the optical lens 10, thereby saving labor and manpower. The extra effect of cost. In addition, the above description is only a preferred embodiment of the present invention, and equivalent changes to the scope of the present application and the scope of the patent application are intended to be included in the scope of the present patent.

10‧‧‧Optical lenses

11‧‧‧ first mirror

12‧‧‧Second mirror

13‧‧‧ first datum

14‧‧‧ positioning surface

15‧‧‧second datum

16‧‧‧垣

Claims (6)

An optical lens made of glass having a first mirror surface on a side opposite to the first mirror surface and a second mirror surface, wherein the optical lens has a surface surrounding the first mirror surface on the surface on which the first mirror surface is located a positioning surface and a first reference surface, the positioning surface and the first reference surface are configured to be coupled to a first positioning object to respectively fix an axial direction between the first mirror surface and the first positioning object a radial relative position; the optical lens has a second reference surface disposed around the second mirror surface on a surface of the second mirror surface, the second reference surface being used for contacting a second positioning object, The optical lens has a convex ridge disposed around the outer circumference of the optical lens, and the positioning surface is located at the outer circumference of the optical lens. The first mirror surface is between the convex surface and the second reference surface is located between the second mirror surface and the tenon. The optical lens of claim 1, wherein the first reference surface and the second reference surface are parallel to each other. The optical lens of claim 1, wherein the first reference surface is closer to the first mirror than the positioning surface. The optical lens of claim 1, wherein the optical lens is sequentially connected to the first mirror surface, the first reference surface and the positioning surface from a central axis to a convex surface on a surface of the side of the first mirror surface. The optical lens of claim 1, wherein an angle is formed between the first reference surface and the positioning surface, and the angle is an obtuse angle. The optical lens of claim 1, wherein the positioning surface is a bevel.