CN201440171U - Optical member - Google Patents

Abstract

The utility model relates to an optical component, which includes a first lens and a second lens, wherein the first lens has a plurality of first lens areas, the first lens areas have the same focus and different areas, and the second lens has a plurality of second lens areas, the second lens areas have the same focus and different areas. The utility model can use two surfaces of a substrate to respectively set the above-mentioned first lens and second lens, and can also use the second lens to be set on one side of the first lens, and the first lens area and the second lens area face the same direction, but the incident light is incident on the original light-emitting surface of the first lens and the outgoing light is output from the original light-emitting surface of the second lens, so as to shorten the focal length of the optical component, and an optoelectronic device using the optical component of the utility model can reduce the volume and shorten the optical path.

Description

Optical components

technical field

The utility model relates to an optical component, which is used for concentrating light and shortening the focal length of the concentrating light.

Background technique

Due to the increasingly widespread use of optical lenses in optoelectronic devices today, such as: digital cameras, mobile phone cameras, web camera lenses, lighting equipment, solar chips, etc., in order to reduce the number of optical lenses used, various optoelectronic devices are no longer Basic lenses such as convex lenses, concave lenses, and prisms are set, and various optoelectronic devices using optical lenses are small in size and easy to carry. Therefore, various optical lenses are continuously developed, such as: Fresnel lens (Fresnel lens), its It has a good effect on guiding light and gathering light online.

Because no matter what kind of optical lens has a focal point and its corresponding focal length, the consideration of the focal point and its focal length for the condenser lens is more important. For miniaturization design, most people will intuitively reduce the size of the optical lens to facilitate the installation of small photoelectric In the device, it is difficult to overcome the problem of too long focal length, and the effect of shortening the focal length simply by reducing the size is limited. Therefore, a Fresnel lens has been developed, which is light, thin, plasticizable and low-cost, so its characteristics It is widely used in the research and development of optoelectronic devices, but the problem of the focal length of the optical lens still cannot be improved.

Therefore, the present invention proposes an optical component aimed at the above-mentioned problems, which can improve the focal length defect of the optical lens and reduce the use area of the optical lens, thereby solving the above-mentioned problems.

Contents of the invention

The purpose of the utility model is to provide an optical component, which utilizes two lenses arranged opposite to each other to shorten the focusing focal length.

Another object of the present invention is to provide an optical component, which uses lenses with different areas to have the same focal point to reduce the area used.

In order to realize the purpose of the utility model and solve its technical problems, it is realized through the following technical solutions.

The utility model discloses an optical component, which comprises:

a substrate;

at least one first lens, which is disposed on one side of the substrate, the first lens has a plurality of first lens regions, and the first lens regions have the same focal point and have different areas; and

At least one second lens is disposed on the other surface of the substrate and opposite to the first lens. The second lens has a plurality of second lens regions, and the second lens regions have the same focal point and different areas.

The utility model also discloses an optical component, which is characterized in that it comprises: a first lens with a first surface and a second surface, and a plurality of first lens areas are set on the first surface of the first lens , the first lens regions have the same focal point and have different areas; and

A second lens, which is arranged on one side of the first lens, the second lens has a first surface and a second surface, the second surface of the second lens faces the first surface of the first lens , the first surface of the second lens is provided with a plurality of second lens regions, and the second lens regions have the same focal point and have different areas;

Wherein, an incident light enters the second surface of the first lens, and exits through the first surface of the first lens, the second surface of the second lens and the first surface of the second lens and focusing, when the second lens is not arranged on one side of the first lens, the incident light is incident on the first surface of the first lens, and is emitted and focused through the second surface of the first lens , the incident light enters the first surface of the second lens, and is emitted and focused through the second surface of the second lens.

The utility model also discloses an optical component, which is characterized in that it comprises: a first lens with a first surface and a second surface, and a plurality of first lens areas are set on the second surface of the first lens , the first lens regions have the same focal point and have different areas; and

A second lens, which is arranged on one side of the first lens, the second lens has

A first surface and a second surface, the second surface of the second lens faces the first surface of the first lens, the second surface of the second lens is provided with a plurality of second lens regions, the first The two lens areas have the same focal point and have different areas;

Wherein, an incident light enters the second surface of the first lens, and exits through the first surface of the first lens, the second surface of the second lens and the first surface of the second lens and focusing, when the second lens is not arranged on one side of the first lens, the incident light is incident on the first surface of the first lens, and is emitted and focused through the second surface of the first lens , the incident light enters the first surface of the second lens, and is emitted and focused through the second surface of the second lens.

The optical component of the present invention uses the first lens and the second lens to be arranged opposite to each other, and the second lens further collects the emitted light of the first lens to shorten the focal length of the focus and increase the light-gathering efficiency.

Description of drawings

Fig. 1A is a side view of a preferred embodiment of the utility model;

Fig. 1B is a top view of a preferred embodiment of the present utility model;

Figure 2A is a side view of another preferred embodiment of the utility model

Fig. 2B is the upper view of another preferred embodiment of the present utility model;

Fig. 3 is a schematic diagram of the optical component of the present invention gathering incident light;

Fig. 4A is a side view of another preferred embodiment of the present utility model;

Fig. 4B is a schematic diagram of the utility model using a single third lens;

Figure 5A is a side view of another preferred embodiment of the present invention; and

FIG. 5B is a schematic diagram of the present invention using a single fifth lens.

[Simple description of figure number]

10 Optical components 12 Substrate

14 first lens 144 first convex lens

146 first annular lens 16 second lens

154 second convex lens 166 second annular lens

20 incident light 22 first outgoing light

24 Second outgoing light 26 Original optical path

30 Optical components 32 Third lens

322 The first side 324 The second side

326 third convex lens 328 third annular lens

34 The fourth lens 342 The first side

344 second side 346 fourth convex lens

348 fourth annular lens 40 incident light

42 The first outgoing light 44 The second outgoing light

46 original optical paths 50 optical components

52 The fifth lens 522 The first side

524 second side 526 fifth convex lens

528 fifth annular lens 54 sixth lens

542 The first side 544 The second side

546 sixth convex lens 548 sixth annular lens

60 incident light 62 first outgoing light

64 Second outgoing light 66 Original optical path

Detailed ways

In order to have a further understanding and understanding of the structural features of the present utility model and the achieved effects, for preferred embodiments and detailed descriptions, the descriptions are as follows:

Please refer to FIG. 1A to FIG. 2B , which are structural schematic diagrams of an embodiment of the optical component of the present invention. As shown in Figure 1A, the utility model is an optical component 10, which includes a substrate 12, at least one first lens 14 and at least one second lens 16, wherein the first lens 14 is arranged on a plane of the substrate 12, the second Two lenses 16 are arranged on another plane of the substrate 12. In this embodiment, a first lens 14 and a second lens 16 are respectively arranged on two planes of the substrate 12, but the utility model is not limited thereto. The substrate 12 The two planes can be further provided with a plurality of first lenses 14 and a plurality of second lenses 16. As shown in FIG. The lens 14 and the second lenses 16 are arranged opposite to each other, so that the output light from one of the lenses can be incident on the opposite lens for further focusing, thereby shortening the focus focal length.

As shown in Figure 1B and Figure 2B, since the first lens 14 is a Fresnel lens, that is, a concentric lens, the first lens 14 has a plurality of first lens regions 142, wherein these first lens regions 142 have the same focal point And have different areas, and these first lens regions include a first convex lens 144 and a plurality of first annular lenses 146, and these first annular lenses 146 are arranged around the outside of the first convex lens 144 in sequence; because the second lens 16 is arranged on another plane of the substrate 12, and is arranged opposite to the first lens 14, so similarly, the second lens 16 is also a Fresnel lens, and the second lens 16 has a plurality of second lens regions (not shown in the figure) , these second lens areas also have the same focal point and have different areas, these second lens areas include a second convex lens 154 and a plurality of second annular lenses 166, and these second annular lenses 166 are sequentially arranged around the first The outer side of the two convex lenses 154 . In addition, the first convex lens 144 and the second convex lens 154 of the present invention can be set to corresponding sizes according to the requirements of different light-gathering effects.

The substrate 12 of the present utility model, the first lens 14 and the second lens 16 are respectively selected from one of glass, acrylic, resin and the above-mentioned combination, because the substrate 12 of the present utility model, the first lens 14 and the second lens The two lenses 16 can be made of the same material, so the substrate, the first lens and the second lens can be integrally formed. Nowadays, the general integral forming method is to use a mold to shape the material at one time, such as injection molding. Manufacturing process, extrusion process and pressing process, etc.

Please refer to FIG. 3 , which is a schematic view of the optical component of the present invention focusing light. As shown in the figure, the present embodiment uses a first lens 14 and a second lens 16 to illustrate how the incident light is shortened and focused by the optical component 10 of the present utility model. At the beginning, an incident light 20 from the first The outside of the lens 14 is incident to the first lens 14, and is converted into a first outgoing light 22, the first outgoing light 22 is transmitted to the second lens 16 through the substrate 12, if the first outgoing light 22 is not further focused by the second lens 16 light, the first outgoing light 22 will be focused according to the original optical path 26. The incident light 20 in this embodiment is converted into the first outgoing light 22 through the first lens 14, and then emitted through the second lens 16 to form a first Two outgoing light 24, as can be seen from the figure, when the first outgoing light 22 is converted into the second outgoing light 24 through the second lens 16, the second outgoing light 24 is focused at a shorter focal length, so that the optical component of the present utility model can The shorter focal length can be applied to smaller optoelectronic devices.

Generally, the Fresnel lens is divided into the lens area set on the light incident surface and the lens area set on the light exit surface. When the light is incident from the light incident surface and emitted from the light exit surface, the Fresnel lens will focus the light. The Fresnel lens diverges the light when it exits from the incident surface.

Please refer to FIG. 4A and FIG. 4B , which are side views of another embodiment of the present invention. As shown in FIG. 4A , the optical component 30 of the present invention includes a third lens 32 and a fourth lens 34 , and the third lens 32 is disposed on one side of the fourth lens 34 . The third lens 32 has a first surface 322 and a second surface 324, the first surface 322 is provided with a plurality of third lens areas, and the third lens areas include a third convex lens 326 and a plurality of third annular lenses 328, The third convex lens 326 and the third annular lenses 328 have the same focal point and have different areas, wherein the third lens 32 is a Fresnel lens; the fourth lens 34 has a first surface 342 and a second surface 344, the first The surface 342 is provided with a plurality of fourth lens areas, the fourth lens areas include a fourth convex lens 346 and a plurality of fourth annular lenses 348, the fourth convex lens 346 and the fourth annular lenses 348 have the same focal point and have different areas , the third convex lens 326 and the third annular lenses 328 and the fourth convex lens 346 and the fourth annular lenses 348 face the same direction, wherein the fourth lens 34 is a Fresnel lens.

As shown in FIG. 4B , when the third lens 32 is used alone, an incident light 40 is incident on the first surface 322 of the third lens 32, and a first outgoing light 42 is emitted through the second surface 324 of the third lens 32. Focusing, similarly, when the fourth lens 34 is used alone, the incident light 40 enters the first surface 342 of the fourth lens 34 , emits an outgoing light through the second surface 344 of the fourth lens 34 and focuses it. Referring back to FIG. 4A, since the fourth lens 34 is directly arranged on one side of the third lens 32, and the third convex lens 326 and the third annular lenses 328 and the fourth convex lens 346 are located in the same direction as the fourth annular lenses 348 , but the incident light is incident from the second surface 324 of the third lens 32, and exits through the first surface 322 of the third lens 32, the second surface 344 of the fourth lens 34 and the first surface 342 of the fourth lens 34 A second outgoing light 44 is focused, and compared with the original optical path 46 of the first outgoing light 42, the second outgoing light 44 can be focused at a shorter focal length, so that the optical component 30 of the present invention The traveling direction of light is different from that of a single Fresnel lens, so the usage of the optical component 30 of the present invention is different from that of a single Fresnel lens.

Please refer to FIG. 5A and FIG. 5B , which are side views of another embodiment of the present invention. As shown in FIG. 5A , the optical component 50 of the present invention includes a fifth lens 52 and a sixth lens 54 , and the fifth lens 52 is disposed on one side of the sixth lens 54 . The fifth lens 52 has a first surface 522 and a second surface 524. The first surface 522 is provided with a plurality of fifth lens regions, and the fifth lens regions include a fifth convex lens 526 and a plurality of fifth annular lenses 528. The fifth convex lens 526 and the fifth annular lenses 528 have the same focal point and have different areas, wherein the fifth lens 52 is a Fresnel lens; the sixth lens 54 has a first surface 542 and a second surface 544, the first The surface 542 is provided with a plurality of sixth lens areas, the sixth lens areas include a sixth convex lens 546 and a plurality of sixth annular lenses 548, the sixth convex lens 546 and the sixth annular lenses 548 have the same focal point and have different areas , the third convex lens 526 and the third annular lenses 528 and the sixth convex lens 546 and the sixth annular lenses 548 face the same direction, wherein the sixth lens 54 is a Fresnel lens.

As shown in FIG. 5B, when the fifth lens 52 is used alone, an incident light 60 is incident on the first surface 522 of the fifth lens 52, and a first outgoing light 62 is emitted through the second surface 524 of the fifth lens 52. Focusing, in the same way, when the sixth lens 54 is used alone, the incident light 60 is incident on the first surface 542 of the sixth lens 54, and is emitted and focused through the second surface 544 of the sixth lens 54. Referring back to FIG. 5A, due to The sixth lens 54 is directly arranged on one side of the fifth lens 52, and the fifth convex lens 526 and the fifth annular lenses 528 and the sixth convex lens 542 are located in the same direction as the sixth annular lenses 544, but the incident light is from The second surface 524 of the fifth lens 52 is incident, and passes through the first surface 522 of the fifth lens 52, the second surface 544 of the sixth lens 54 and the first surface 542 of the sixth lens 54, and emits the second outgoing light 64 and focusing, and the second outgoing light 64 is compared with the original optical path 66 of the first outgoing light 62, the second outgoing light 64 can be focused at a shorter focal length, so that the light traveling direction of the optical component 50 of the present utility model is different from A single Fresnel lens, so the usage of the optical component 50 of the present invention is different from that of a single Fresnel lens.

To sum up, the optical component of the present invention utilizes the characteristics of the first lens and the second lens to be arranged opposite to each other, and the second lens further collects the emitted light of the first lens, shortens the focal length of the focus, and increases the light-gathering efficiency.

In summary, it is only a preferred embodiment of the present utility model, and is not used to limit the scope of implementation of the present utility model. All actions made according to the shape, structure, characteristics and spirit described in the claims of the present utility model Equal changes and modifications shall be included in the scope of claims of the present utility model.

Claims (19)

1. An optical component, characterized in that it comprises: a substrate; at least one first lens, which is disposed on one side of the substrate, the first lens has a plurality of first lens regions, and the first lens regions have the same focal point and have different areas; and At least one second lens is disposed on the other surface of the substrate and opposite to the first lens. The second lens has a plurality of second lens regions, and the second lens regions have the same focal point and different areas. 2 . The optical component according to claim 1 , wherein the first lens regions have a convex lens and a plurality of annular lenses from inside to outside. 3 . The optical component according to claim 1 , wherein the second lens regions have a convex lens and a plurality of annular lenses from inside to outside. 4 . 4. The optical component according to claim 1, wherein the first lens and the second lens are concentric circular lenses. 5. The optical component according to claim 1, wherein the first lens and the second lens are Fresnel lenses. 6 . The optical component according to claim 1 , wherein the substrate, the first lens and the second lens are selected from one of glass, acrylic, resin and combinations thereof. 7. The optical component according to claim 1, wherein the substrate, the first lens and the second lens are integrally formed. 8. An optical component, characterized in that it comprises: A first lens having a first surface and a second surface, the first surface of the first lens is provided with a plurality of first lens regions, the first lens regions have the same focal point and have different areas; and A second lens, which is arranged on one side of the first lens, the second lens has a first surface and a second surface, the second surface of the second lens faces the first surface of the first lens , the first surface of the second lens is provided with a plurality of second lens regions, and the second lens regions have the same focal point and have different areas; Wherein, an incident light enters the second surface of the first lens, and exits through the first surface of the first lens, the second surface of the second lens and the first surface of the second lens and focusing, when the second lens is not arranged on one side of the first lens, the incident light is incident on the first surface of the first lens, and is emitted and focused through the second surface of the first lens , the incident light enters the first surface of the second lens, and is emitted and focused through the second surface of the second lens. 9 . The optical component according to claim 8 , wherein the first lens regions have a convex lens and a plurality of annular lenses from inside to outside. 10 . The optical component according to claim 8 , wherein the second lens regions have a convex lens and a plurality of annular lenses from inside to outside. 11 . 11. The optical component according to claim 8, wherein the first lens and the second lens are concentric circular lenses. 12. The optical component according to claim 8, wherein the first lens and the second lens are Fresnel lenses. 13. The optical component according to claim 8, wherein the first lens and the second lens are selected from one of glass, acrylic, resin and combinations thereof. 14. An optical component, characterized in that it comprises: A first lens having a first surface and a second surface, the second surface of the first lens is provided with a plurality of first lens regions, the first lens regions have the same focal point and have different areas; and A second lens, which is arranged on one side of the first lens, the second lens has A first surface and a second surface, the second surface of the second lens faces the first surface of the first lens, the second surface of the second lens is provided with a plurality of second lens regions, the first The two lens areas have the same focal point and have different areas; Wherein, an incident light enters the second surface of the first lens, and exits through the first surface of the first lens, the second surface of the second lens and the first surface of the second lens and focusing, when the second lens is not arranged on one side of the first lens, the incident light is incident on the first surface of the first lens, and is emitted and focused through the second surface of the first lens , the incident light enters the first surface of the second lens, and is emitted and focused through the second surface of the second lens. 15. The optical component according to claim 14, wherein the first lens regions have a convex lens and a plurality of annular lenses from inside to outside. 16. The optical component according to claim 14, wherein the second lens regions have a convex lens and a plurality of annular lenses from inside to outside. 17. The optical component according to claim 14, wherein the first lens and the second lens are concentric circular lenses. 18. The optical component according to claim 14, wherein the first lens and the second lens are Fresnel lenses. 19. The optical component according to claim 14, wherein the first lens and the second lens are selected from one of glass, acrylic, resin and combinations thereof.

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