CN215067390U

CN215067390U - Optical lens

Info

Publication number: CN215067390U
Application number: CN202121630207.9U
Authority: CN
Inventors: 周长颖
Original assignee: Kaga Kotoku Science And Technology LLC
Current assignee: Kaga Kotoku Science And Technology LLC
Priority date: 2021-07-16
Filing date: 2021-07-16
Publication date: 2021-12-07
Anticipated expiration: 2031-07-16

Abstract

The utility model relates to an optical lens, which has a square structure as a whole, and the axial thickness is gradually increased from one corner to a relative corner; one side of the optical lens is provided with an incident surface, and the other side is provided with an emergent surface. The incident surface is a spherical convex surface, so that the focusing path of the light beam is shorter, and the focusing energy is more concentrated. The exit surface is a non-spherical convex surface, so that the refraction light path of light with different wavelengths can be changed, the light with different wavelengths is focused on one point, and the focusing effect and the energy concentration of light beams formed by the light with different wavelengths are improved. Compared with the traditional monolithic optical lens, the focusing position of the emergent ray can be adjusted up, down, left and right, and the difficulty in adjusting the focusing position is effectively reduced. Meanwhile, the focusing capacity of the single-chip optical lens is improved, and the utilization rate of an optical space is improved. Moreover, the focusing space position does not need to be adjusted in a mode of mutually matching a plurality of optical lenses, so that a light path processing system is simplified, the applicability of the lenses is improved, and the assembly cost is greatly reduced.

Description

Optical lens

Technical Field

The utility model relates to an optical element technical field especially relates to an optical lens.

Background

Before entering a target chamber of a physical experiment area, the light beam is processed by a light path processing system, and emergent rays are gathered to a specified position at a specific angle and a specific focal length. The light path processing system comprises an optical lens, and the optical lens can change the focusing position and the energy intensity of the emergent ray.

However, when the conventional optical lens is used for processing the light beam, the focusing position of the emergent light beam is not easily adjusted.

SUMMERY OF THE UTILITY MODEL

When being used for solving traditional optical lens and handling the light beam, the difficult problem of being adjusted of focus position of emergent ray, the utility model provides an optical lens.

In order to achieve the purpose of the present invention, the optical lens has a square structure, and the axial thickness gradually increases from one corner to the opposite corner;

one side of the optical lens is provided with an incident surface, and the other side of the optical lens is provided with an emergent surface;

the incident surface is a spherical convex surface;

the emergent surface is an aspheric convex surface.

In one embodiment, the four corners of the optical lens are a first corner, a second corner, a third corner and a fourth corner respectively;

the axial thickness of a first corner of the optical lens is a first preset thickness, the axial thickness of a second corner is a second preset thickness, the axial thickness of a third corner is a third preset thickness, and the axial thickness of a fourth corner is a fourth preset thickness;

the second preset thickness is equal to the third preset thickness, is larger than the first preset thickness, and is smaller than the fourth preset thickness.

In one embodiment, the first predetermined thickness is 72.59 mm;

the fourth preset thickness is 130.30 mm;

the thickness of the incident surface is 16.11mm, and the curvature radius is 237.03 mm;

the thickness of the exit face was 48.90 mm.

In one embodiment, antireflection films are attached to both the incident surface and the exit surface.

In one embodiment, the optical lens is made of optical glass.

In one embodiment, the top and bottom end surfaces of the optical lens are planar structures.

The utility model has the advantages that: the utility model discloses an one side of optical lens is equipped with the incident surface, and the incident surface is the ball convex surface for light beam focusing route is shorter, and the focused energy is more concentrated. The other side of the optical lens is provided with an emergent surface. The exit surface is a non-spherical convex surface, so that the refraction light path of light with different wavelengths can be changed, the light with different wavelengths is focused on one point, and the focusing effect and the energy concentration of light beams formed by the light with different wavelengths are improved. Compared with the traditional monolithic optical lens, the focusing position of the emergent ray can be adjusted up, down, left and right, the difficulty in adjusting the focusing position is effectively reduced, and the diversity of the emergent ray is increased. Meanwhile, the focusing capacity of the single-chip optical lens is improved, and the utilization rate of an optical space is improved. Moreover, the focusing space position does not need to be adjusted in a mode of mutually matching a plurality of optical lenses, so that a light path processing system is simplified, the applicability of the lenses is improved, and the assembly cost is greatly reduced.

Drawings

Fig. 1 is a schematic structural diagram of an embodiment of an optical lens according to the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.

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 with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it should be understood that the terms "top", "bottom", "inner", "outer", "axis", "circumferential" and the like refer to the orientation or positional relationship shown in the drawings, which are only for convenience of description of the present invention or simplification of the description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," "engaged," "hinged," and the like are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other suitable relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1, as an embodiment of the present invention, an optical lens 110 is a square structure, and the axial thickness gradually increases from one corner to the opposite corner. The optical lens 110 has an incident surface 111 on one side and an exit surface 112 on the other side. The incident surface 111 and the exit surface 112 are convex surfaces, specifically, the incident surface 111 is a spherical convex surface, and the exit surface 112 is an aspherical convex surface.

In this embodiment, the incident light enters the optical lens 110 from the incident surface 111 and exits through the exit surface 112. The incident surface 111 and the exit surface 112 are convex surfaces, so that the path of focusing the light beam is shorter, the light energy is more concentrated, and the loss of the light energy is reduced. Specifically, the incident surface 111 is a spherical convex surface, so that the focusing path of the light beam is shorter and the focusing energy is more concentrated. The exit surface 112 is an aspheric convex surface, which can reduce the influence of the material of the lens on the optical dispersion, improve the refraction light path of the light with different wavelengths, focus the light with different wavelengths on one point, and improve the focusing effect and energy concentration of the light beam composed of the light with different wavelengths. The optical lens 110 is a square structure, which is beneficial to the molding process of the optical lens 110. The optical lens 110 may be directly cut from a conventional lenticular lens with its diagonal coinciding with the diameter of the lenticular lens. The optical lens 110 increases in axial thickness from one angle to the opposite angle. Compared with the traditional monolithic optical lens, the focusing position of the emergent ray can be adjusted in the vertical direction and the water level direction, the difficulty in adjusting the focusing position is effectively reduced, and the diversity of the emergent ray is increased. Meanwhile, the focusing capacity of the single-chip optical lens is improved, and the utilization rate of an optical space is improved. Moreover, the focusing space position does not need to be adjusted in a mode of mutually matching a plurality of optical lenses, the optical path processing system is favorably simplified, the applicability of the lenses is improved, the assembly cost is greatly reduced, the assembly time is saved, and the loss of light energy is reduced.

In an embodiment of the present invention, the four corners of the optical lens 110 are the first corner, the second corner, the third corner and the fourth corner, respectively. The axial thickness at the first corner of the optical lens 110 is a first predetermined thickness, the axial thickness at the second corner is a second predetermined thickness, the axial thickness at the third corner is a third predetermined thickness, and the axial thickness at the fourth corner is a fourth predetermined thickness. And the second preset thickness is equal to the third preset thickness, the second preset thickness and the third preset thickness are both larger than the first preset thickness, and the second preset thickness and the third preset thickness are both smaller than the fourth preset thickness. So that the outgoing light path can exit at a specific 45 deg.. Specifically, the first predetermined thickness is 72.59mm, and the fourth predetermined thickness is 130.30 mm. The thickness of the entrance face 111 is 16.11mm, and the corresponding radius of curvature is 237.03 mm. The thickness of the exit face 112 is 48.90 mm.

In an embodiment of the present invention, the incident surface 111 and the emergent surface 112 are both coated with antireflection films, which can control the light with a wavelength between 350 ± 5nm to pass through, thereby improving the tolerance and the service life of the optical lens 110. In addition, the optical lens 110 is made of optical glass, so that the uniformity of the emergent light is better, and the low-stress birefringence effect is achieved. The top end surface and the bottom end surface of the optical lens 110 are planar structures, which is beneficial to forming processing.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," "one specific embodiment," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, a schematic representation of the term does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only a preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can equally replace or change the technical solution and the inventive concept of the present invention within the scope of the present invention.

Claims

1. An optical lens, characterized in that the optical lens is a square structure, and the axial thickness is gradually increased from one corner to the opposite corner;

the incident surface is a spherical convex surface;

the emergent surface is an aspheric convex surface.

2. The optical lens of claim 1, wherein four corners of the optical lens are a first corner, a second corner, a third corner and a fourth corner, respectively;

3. An optical lens as claimed in claim 2, characterized in that the first predetermined thickness is 72.59 mm;

the fourth preset thickness is 130.30 mm;

the thickness of the exit face is 48.90 mm.

4. An optical lens as claimed in any one of claims 1 to 3, wherein an antireflection film is applied to both the incident surface and the exit surface.

5. An optical lens according to any one of claims 1 to 3, wherein the material of the optical lens is optical glass.

6. An optical lens according to any one of claims 1 to 3, wherein the top and bottom faces of the optical lens are of planar construction.