CN214586220U

CN214586220U - Periscopic lens assembly

Info

Publication number: CN214586220U
Application number: CN202120375366.2U
Authority: CN
Inventors: 吴燕玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-02-18
Filing date: 2021-02-18
Publication date: 2021-11-02
Anticipated expiration: 2031-02-18

Abstract

The utility model relates to a periscopic lens subassembly, include: the triangular prism, the convex lens and the polygonal aspheric prism are arranged in sequence; incident light is refracted by the triangular prism and then vertically enters the convex lens for amplification; the amplified incident light enters the polygonal non-spherical prism through the light incident surface of the polygonal non-spherical prism, is reflected at least twice and then is emitted from the light emitting surface of the polygonal non-spherical prism; and the incident light refracted by the polygonal non-spherical prism is vertically incident into the photosensitive sensor arranged in parallel with the light-emitting surface of the polygonal non-spherical prism for imaging. The utility model has the advantages that: the light path is extended to improve the zooming ratio after the incident light is refracted through the triangular prism and then enters the convex lens to be amplified, the incident light is refracted for multiple times through the polygonal non-spherical prism, and meanwhile, the volume of the zooming light path is reduced, so that the refraction and reflection advantages are short in volume, the light path is long in zooming length, and the imaging quality is better.

Description

Periscopic lens assembly

Technical Field

The utility model belongs to the technical field of the camera lens, concretely relates to periscopic lens subassembly.

Background

In general, lenses are installed in 3C products used in daily life, such as electronic products like tablet phones, mobile phones, home appliances, and vehicle-mounted products, for obtaining images, and in order to improve the magnification effect of optical zooming of the lenses, a periscopic lens design is adopted to improve the magnification of zooming.

The optical path design of the existing periscopic lens shown in fig. 1 is a single-refraction type design of a triangular prism (that is, the light incident surface and the light emergent surface are planes), and the design is limited in that the optical zoom magnification and the image height cannot be increased by the refraction optical path and the semi-reflection design, and certain chromatic aberration imaging effect of single-refraction type imaging is poor.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem that the light path that prior art exists is long, zoom bulky, the imaging effect is poor, the utility model provides a periscopic lens subassembly, it has characteristics such as the volume is littleer, the imaging effect is better.

The utility model discloses the technical scheme who adopts does:

a periscopic lens assembly comprising: the triangular prism, the convex lens and the polygonal aspheric prism are arranged in sequence;

incident light is refracted by the triangular prism and then vertically incident into the convex lens for amplification;

the amplified incident light enters the polygonal non-spherical prism through the light incident surface of the polygonal non-spherical prism, is reflected at least twice and then is emitted out of the light emitting surface of the polygonal non-spherical prism;

and incident light refracted by the polygonal non-spherical prism is vertically incident into a photosensitive sensor arranged in parallel with the light-emitting surface of the polygonal non-spherical prism for imaging.

Further, the polygonal aspheric prism is a quadrangular aspheric prism, and the amplified incident light is emitted after being reflected twice by the quadrangular aspheric prism.

Furthermore, the light path of the light emitted from the light-emitting surface of the quadrangular aspheric prism is parallel to the light path of the amplified incident light.

Furthermore, the polygonal aspheric prism is a pentagonal aspheric prism, and the amplified incident light is emitted after being reflected twice by the pentagonal aspheric prism.

Furthermore, the light path of the light emitted from the light-emitting surface of the pentagonal aspheric prism is perpendicular to the light path of the amplified incident light.

Further, the polygonal aspheric prism is a pentagonal aspheric prism, and the amplified incident light is emitted after being reflected by the pentagonal aspheric prism for three times.

Furthermore, the included angle between the light path of the light emitted from the light-emitting surface of the pentagonal aspheric prism and the light path of the amplified incident light is larger than 90 degrees.

Further, the polygonal aspheric prism is a hexagonal aspheric prism, and the amplified incident light is emitted after being reflected by the hexagonal aspheric prism for four times.

Furthermore, the light path of the light emitted from the light-emitting surface of the hexagonal non-spherical prism is perpendicular to the light path of the amplified incident light.

Furthermore, the triangular prism, the convex lens and the polygonal non-spherical prism are made of plastic, glass and liquid materials.

The utility model has the advantages that: the light path is extended to improve the zooming ratio after the incident light is refracted through the triangular prism and then enters the convex lens to be amplified, the incident light is refracted for multiple times through the polygonal non-spherical prism, and meanwhile, the volume of the zooming light path is reduced, so that the refraction and reflection advantages are short in volume, the light path is long in zooming length, and the imaging quality is better.

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 these drawings without creative efforts.

FIG. 1 is a prior art lens assembly provided in accordance with an exemplary embodiment;

FIG. 2 is an optical path diagram of a periscopic lens assembly provided in accordance with an exemplary embodiment;

FIG. 3 is another block diagram of a periscopic lens assembly provided in accordance with an exemplary embodiment;

FIG. 4 is a further block diagram of a periscopic lens assembly provided in accordance with an exemplary embodiment;

FIG. 5 is yet another block diagram of a periscopic lens assembly provided in accordance with an exemplary embodiment;

fig. 6 is another block diagram of a periscopic lens assembly provided in accordance with an exemplary embodiment.

FIG. 1-triangular prism; 2-a lens; 3-a light sensitive sensor; 4-convex lens; 5-polygonal aspherical prism.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 2, an embodiment of the present invention provides a periscopic lens assembly, including: the triangular prism 1, the convex lens 4 and the polygonal aspheric prism 5 are arranged in sequence;

incident light is refracted by the triangular prism 1 and then vertically enters the convex lens 4 for amplification;

the amplified incident light enters the polygonal non-spherical prism 5 through the light incident surface of the polygonal non-spherical prism 5, is reflected at least twice and then is emitted out of the light emitting surface of the polygonal non-spherical prism 5;

the incident light refracted by the polygonal non-spherical prism 5 perpendicularly enters the photosensitive sensor 3 arranged in parallel with the light-emitting surface of the polygonal non-spherical prism 5 for imaging.

Specifically, referring to fig. 1, the optical path design of the existing periscopic lens is an amplification design of a single-refraction lens 2 which is a triangular prism 1, and is limited by the fact that the design of refraction optical path and half-reflection cannot increase the optical zoom magnification and increase the imaging height, and the single-refraction imaging chromatic aberration is poor in severe imaging effect.

After corresponding imaging amplification is carried out by adopting the convex lens 4, the image can enter the polygonal non-spherical prism 5 to be refracted and reflected again and then enter the photosensitive sensor 3 for imaging identification. Therefore, light rays after being zoomed by the prism are emitted into the convex lens to be amplified, and then the magnification of zooming is improved by fixing or moving the extension light path through the polygonal non-spherical prism, so that the refraction and reflection effect is good, the light path with small volume is increased, and the zooming is longer. The sizes and distances of different surfaces are increased by zoom magnification, and then the different surfaces are refracted to be fixed or moved to be increased by zoom magnification and then the different surfaces are imaged on the photosensitive sensor.

As a possible implementation manner of the above embodiment, referring to fig. 3, the polygonal aspherical prism 5 is a quadrangular aspherical prism, and the incident light after being amplified is reflected twice by the quadrangular aspherical prism and then emitted.

The light path of the light emitted from the light-emitting surface of the quadrangular aspheric prism is parallel to the light path of the amplified incident light.

Incident light is reflected by the triangular prism to enter the convex lens (moving or fixing) for zooming, then the light enters the quadrangular aspheric prism for fixing or moving and extending the light path to improve the zooming multiplying power, and is refracted to the photosensitive sensor for imaging, so that the folding type optical zoom lens has the advantages of small volume and long light path for zooming.

Referring to fig. 4, in another embodiment of the present invention, the polygonal aspheric prism is a pentagonal aspheric prism, and the magnified incident light is emitted after being reflected twice by the pentagonal aspheric prism.

The light path of the light emitted from the light-emitting surface of the pentagonal aspheric prism is perpendicular to the light path of the amplified incident light.

Incident light is reflected into the convex lens (moving or fixed) by the triangular prism, then the light is emitted into the pentagonal aspheric prism to be fixed or moved to extend the optical path to improve the zoom magnification, and the light is refracted to the photosensitive sensor to be imaged. The refractive imaging has certain chromatic aberration; the refraction and reflection type imaging edge has fuzzy feeling and large light entrance aperture, and the refraction and reflection type has the advantages of volume, short light path and long zooming length.

Referring to fig. 5, in some embodiments of the present invention, the polygonal aspheric prism is a pentagonal aspheric prism, and the magnified incident light is emitted after being reflected by the pentagonal aspheric prism three times.

The included angle between the light path of the light emitted from the light-emitting surface of the pentagonal aspheric prism and the light path of the amplified incident light is larger than 90 degrees. This allows a longer zoom distance with a better zoom effect.

Referring to fig. 6, in another embodiment of the present invention, the polygonal aspheric prism is a hexagonal aspheric prism, and the magnified incident light is emitted after being reflected by the hexagonal aspheric prism for four times.

The light path of the light emitted from the light emitting surface of the hexagonal non-spherical prism is perpendicular to the light path of the amplified incident light.

In specific implementation, the triangular prism, the convex lens and the polygonal aspheric prism are made of plastic, glass, liquid material and other lenses, and the light incident surface and the light emergent surface of the polygonal aspheric prism can be planar, aspheric, freesnel diffraction surface, array surface, freeform surface and other polygonal surface newly-optically-designed prisms.

Wherein the convex lens that has the magnifying function can adopt the camera lens that has the magnifying function in the current 3C product, to its concrete form of realization the utility model discloses do not do the restriction here.

The utility model discloses above-mentioned embodiment provides a periscopic lens subassembly passes through triangular prism and goes into convex camera lens after refracting with the incident light and enlarge the back and carry out the multiple refraction by polygonal aspheric surface prism to the incident light after realizing extending the light path and promoting the magnification of zooming, reduces the volume of the light path of zooming simultaneously, makes refraction and reflection advantage volume short, and the light path length is zoomed long, and imaging quality is better.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," 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 invention. In this specification, the schematic representations of the terms used above do 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.

What has been described above includes examples of one or more embodiments. It is, of course, not possible to describe every conceivable combination of components or methodologies for purposes of describing the aforementioned embodiments, but one of ordinary skill in the art may recognize that many further combinations and permutations of various embodiments are possible. Accordingly, the embodiments described herein are intended to embrace all such alterations, modifications and variations that fall within the scope of the appended claims. Furthermore, to the extent that the term "includes" is used in either the detailed description or the claims, such term is intended to be inclusive in a manner similar to the term "comprising" as "comprising" is interpreted when employed as a transitional word in a claim. Furthermore, any use of the term "or" in the specification of the claims is intended to mean a "non-exclusive or".

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A periscopic lens assembly, comprising: the triangular prism, the convex lens and the polygonal aspheric prism are arranged in sequence;

2. The periscopic lens assembly as recited in claim 1, wherein the polygonal aspheric prism is a quadrangular aspheric prism, and the magnified incident light is emitted after being reflected twice by the quadrangular aspheric prism.

3. The periscopic lens assembly as recited in claim 2, wherein the light path of the light emitted from the light-emitting surface of the quadrangular aspheric prism is parallel to the light path of the amplified incident light.

4. The periscopic lens assembly as recited in claim 1, wherein the polygonal aspheric prism is a pentagonal aspheric prism, and the magnified incident light is emitted after being reflected twice by the pentagonal aspheric prism.

5. The periscopic lens assembly of claim 4, wherein the light path of the light emitted from the light-emitting surface of the pentagonal aspheric prism is perpendicular to the light path of the amplified incident light.

6. The periscopic lens assembly of claim 1, wherein the polygonal aspheric prism is a pentagonal aspheric prism, and the magnified incident light is emitted after being reflected three times by the pentagonal aspheric prism.

7. The periscopic lens assembly of claim 6, wherein an angle between a light path of the light emitted from the light-emitting surface of the pentagonal aspheric prism and a light path of the amplified incident light is greater than 90 °.

8. The periscopic lens assembly of claim 1, wherein the polygonal aspheric prism is a hexagonal aspheric prism, and the magnified incident light is emitted after being reflected by the hexagonal aspheric prism for four times.

9. The periscopic lens assembly of claim 8, wherein the light path of the light emitted from the light-emitting surface of the hexagonal aspheric prism is perpendicular to the light path of the amplified incident light.

10. A periscopic lens assembly according to any one of claims 1 to 9, wherein the triangular prism, the convex lens and the polygonal aspheric prism are made of plastic, glass or liquid material.