Optical device

Abstract

An optical device includes a light blocking structure, a first optical element located in a first region beside the light blocking structure, and a first lens device located in the first region and on the light blocking structure, wherein the first lens device and a contact region of the light blocking structure form a first contact surface, and wherein the first contact surface includes a first bending portion.

Description

Technical Field

[0001] This invention relates to optical devices, and more particularly to optical devices that can prevent liquid leakage. Background Technology

[0002] In existing technologies, optical devices typically include a light-shielding structure to block certain optical elements from receiving unwanted light. However, gaps may exist between the light-shielding structure and other components, leading to water leakage. Therefore, there is a need for an optical device with a waterproof structure. Summary of the Invention

[0003] One objective of this invention is to disclose an optical device with a waterproof structure.

[0004] An embodiment of the present invention discloses an optical device, comprising: a light-blocking structure; a first optical element located in a first region adjacent to the light-blocking structure; and a first lens device located in the first region and on the light-blocking structure; wherein the first lens device and the contact area of ​​the light-blocking structure form a first contact surface, wherein the first contact surface includes a first bending portion.

[0005] In one embodiment, the light-blocking structure includes a recess and the first lens device includes a protrusion, and the first bent portion is formed by the protrusion being inserted into the recess. Alternatively, the light-blocking structure may include a protrusion and the first lens device includes a recess, and the first bent portion is formed by the protrusion being inserted into the recess.

[0006] In another embodiment, the optical device further includes: a second optical element located in a second region adjacent to the light-blocking structure; and a second lens device located in the second region and on the second optical element; wherein the second lens device forms a second contact surface with the contact area of ​​the light-blocking structure, and the second contact surface includes a second bend. The light-blocking structure may include a recess and the second lens device includes a protrusion, and the second bend is formed by the protrusion being embedded in the recess. Alternatively, the light-blocking structure may include a protrusion and the second lens device includes a recess, and the second bend is formed by the protrusion being embedded in the recess.

[0007] Another embodiment of the present invention discloses an optical device, comprising: a light-blocking structure; a first optical element located in a first region adjacent to the light-blocking structure; a first lens device located in the first region and on the light-blocking structure; a second optical element located in a second region adjacent to the light-blocking structure; and a second lens device located in the second region and on the second optical element; wherein the first lens device and the second lens device form a common portion on the light-blocking structure; wherein the common portion includes a scattering structure for scattering light.

[0008] The scattering structure can be a texture on the surface of the common part. The first lens assembly and the second lens assembly can be integrally formed. In one embodiment, the second optical element is a light source; the scattering structure is used to scatter the light emitted by the first optical element. The first optical element is an image sensor, and the light-blocking structure is used to prevent the first optical element from receiving light from the second optical element.

[0009] In conclusion, the waterproofing of optical devices can be improved through a simple structure, thereby mitigating leakage issues without significantly increasing costs or assembly complexity. Attached Figure Description

[0010] Figure 1 A schematic diagram of an optical device according to an embodiment of the present invention is shown.

[0011] Figure 2 It is illustrated Figure 1 The diagram shown is a partially enlarged illustration of the embodiment.

[0012] Figure 3 A schematic diagram of an optical device according to another embodiment of the present invention is shown.

[0013] Figure 4 It is illustrated Figure 3 The diagram shown is a partially enlarged illustration of the embodiment.

[0014] Figure 5 A schematic diagram of an optical device according to another embodiment of the present invention is shown.

[0015] Figure 6 It is illustrated Figure 5 A schematic diagram of an enlarged view of the common part in the embodiment shown.

[0016] Figure 7 A schematic diagram of an optical device according to another embodiment of the present invention is shown.

[0017] The reference numerals in the attached figures are explained as follows: 100, 300, 500 optical devices 101 Light-shielding structure 601 Scattering Structure 701 and 703 BP_11, BP_12 First bend Bending sections of BP_21, BP_22, BP_3, and BP_4 Parts EP_1, EP_2, and EP_3 L_1 First Lens L_2 Second Lens L_1a First auxiliary optical element L_2a Second auxiliary optical element L_1D First Lens Device L_2D Second Lens Device OP_1 First Optical Element OP_2 Second Optical Element SS sensing surface TS_1 First Contact Surface TS_2 Second Contact Surface Detailed Implementation The present invention will be described below with reference to several embodiments. Please note that the terms "first," "second," and similar descriptions used in the following description are only used to define different elements, parameters, data, signals, or steps, and are not intended to limit their order. For example, the first device and the second device may be devices with the same structure but different from each other. Furthermore, the following embodiments are illustrated using water, but the following embodiments can also be used to prevent leakage of other liquids.

[0018] Figure 1 A schematic diagram of an optical device according to an embodiment of the present invention is shown. Figure 1 As shown, the optical device 100 includes a light-shielding structure 101, a first optical element OP_1, a first lens assembly L_1D, a second optical element OP_2, and a second lens assembly L_2D. The first lens assembly L_1D may include the first lens itself (i.e., the first lens L_1) and a first auxiliary optical element L_1a connected to or integrally formed with the first lens L_1. Similarly, the second lens assembly L_2D may include the second lens itself (i.e., the second lens L_2) and a second auxiliary optical element L_2a connected to or integrally formed with the second lens L_2. More specifically, in one embodiment, light incident on the first optical element OP_1 passes through the first lens L_1 but not through the first auxiliary optical element L_1a. Furthermore, light emitted from the second optical element OP_2 passes through the second lens L_2 but not through the second auxiliary optical element L_2a.

[0019] The first optical element OP_1 is located in a first region adjacent to the light-shielding structure 101. The first lens L_1 is located in the first region and above the first optical element OP_1. In this embodiment and subsequent embodiments, the first optical element OP_1 is an image sensor, and the second optical element OP_2 is a light source. Therefore, the optical device 100 can be disposed in a camera or optical navigation device (e.g., an optical mouse), or any device that needs to sense images. However, the optical device of the present invention may include only one optical element, and is not limited to multiple optical elements.

[0020] In this case, the light-shielding structure 101 is used to prevent the first optical element OP_1 from receiving light from the second optical element OP_2. However, the first optical element OP_1 and the second optical element OP_2 are not limited to the aforementioned example.

[0021] Please refer to Figure 2 , it is Figure 1 An enlarged schematic diagram of part of EP_1 in the illustrated embodiment. (See diagram below.) Figure 2 As shown, the contact area where the first auxiliary optical element L_1a contacts the light-shielding structure 101 forms a first contact surface TS_1. The first contact surface TS_1 includes at least one first bend, for example... Figure 2 The first bends BP_11 and BP_12. Please note that other bends exist in this and subsequent embodiments, but only a portion of them are described here. In one embodiment, the curvature change of the bend is greater than a predetermined angle (e.g., or ).

[0022] More specifically, in Figure 2 In this configuration, the light-shielding structure 101 includes a recess, and the first auxiliary optical element L_1a includes a protrusion. In this case, the first bent portion BP_11 is formed by the protrusion embedding into the recess. Similarly, in... Figure 2 In the light-shielding structure 101, there is a protrusion and the first auxiliary optical element L_1a includes a recess, wherein the first bending portion BP_12 is formed by the protrusion being inserted into the recess.

[0023] exist Figure 2 In one embodiment, because the bends BP_11 and BP_12 extend the path of water flow, a stronger water-proof function can be provided when water seeps into the optical element 100. In another embodiment, a waterproof material can be added to the gap between the first auxiliary optical element L_1a and the light-shielding structure 101 to provide a stronger water-proof function.

[0024] Figure 1 and Figure 2 The structure described herein can be applied to other parts of the optical device 100. Figure 3 A schematic diagram of an optical device according to another embodiment of the present invention is illustrated. Figure 3 In this embodiment, the optical device 300 further includes a light-shielding structure 101, a first optical element OP_1, a first lens device L_1D, a second optical element OP_2, and a second lens device L_2D. The structures of the second optical element OP_2 and the second lens device L_2D are similar to those of the optical device OP_2 and L_2D. Figure 1 and Figure 2 The same.

[0025] Specifically, in Figure 3In this configuration, the second optical element OP_2 is located in the second region adjacent to the light-shielding structure 101. The second lens L_2 is located in the second region and is positioned above the second optical element OP_2. In one embodiment, the first and second regions are opposite to each other. Figure 4 for Figure 3 Enlarged schematic diagrams of EP_2 and part of EP_3 in the illustrated embodiment. (See attached diagram.) Figure 4 As shown, the second auxiliary optical element L_2a and the contact area of ​​the light-shielding structure 101 form a second contact surface TS_2, wherein the second contact surface includes at least one second bend, such as bends BP_21 and BP_22.

[0026] More specifically, in Figure 4 In one embodiment, the light-shielding structure 101 includes a recess, and the second auxiliary optical element L_2a includes a protrusion, wherein the second bending portion BP_22 is formed by the protrusion being embedded in the recess. Similarly, in Figure 4 In one embodiment, the light-shielding structure 101 includes a protrusion, and the second auxiliary optical element L_2a includes a recess, wherein the second bending portion BP_21 is formed by the protrusion being embedded in the recess.

[0027] exist Figure 4 In one embodiment, because the second bends BP_21 and BP_22 extend the path of water flow, a stronger water-proof function can be provided when water seeps into the optical device 300. In another embodiment, a waterproof material can be added to the gap between the second auxiliary optical element L_2a and the light-blocking structure 101 to provide a stronger water-proof function.

[0028] Figure 4 Further demonstration Figure 3 An enlarged view of the middle part EP_3. At this point, the protrusion of the first auxiliary optical element L_1a and the recess of the light-shielding structure 101 form bends BP_3 and BP_4. This extends the water flow path, providing stronger leak-proof functionality when water seeps into the optical device 300. More specifically, the first optical element OP_1 can sense light incident from above, while the protrusion of the first auxiliary optical element L_1a extends from left to right. Therefore, the protrusion is perpendicular to the sensing direction of the first optical element OP_1. In other words, the protrusion direction of the first optical element OP_1 is perpendicular to its sensing surface SS, and thus the protrusion of the first auxiliary optical element L_1a is perpendicular to the sensing direction of the first optical element OP_1. The sensing surface refers to the surface of the first optical element OP_1 that receives light.

[0029] In another embodiment, the first auxiliary optical element L_1a is inclined at the protrusion of portion EP_3. In this case, the protrusion direction is not parallel to the sensing direction. In another embodiment, the protrusion of the light-shielding structure 101 forms at least one bend with the recess of the first auxiliary optical element L_1a. In this case, the protrusion direction can also follow the rule of portion EP_3. Furthermore, according to this rule, the protrusions of EP_1 and portion EP_2 are parallel to the sensing direction of the first optical element OP_1.

[0030] In addition to the above-described structures, the present invention also discloses other waterproof structures. Figure 5 A schematic diagram of an optical device 500 according to yet another embodiment of the present invention is shown. Figure 5 In this embodiment, the optical device 500 also includes a light-shielding structure 101, a first optical element OP_1, a first lens device L_1D, a second optical element OP_2, and a second lens device L_2D. Figure 5 In this embodiment, the first optical element OP_1 is an image sensor, and the second optical element OP_2 is a light source.

[0031] exist Figure 5 In one embodiment, the first optical element OP_1 is located in a first region adjacent to the light-shielding structure; the second optical element OP_2 is located in a second region adjacent to the light-shielding structure. In one embodiment, the first region and the second region are opposite to each other. The first lens device L_1D and the second lens device L_2D form a common portion SP above the light-shielding structure 101. The common portion SP has a scattering structure for scattering light.

[0032] Figure 6 for Figure 5 An enlarged schematic diagram of the common part SP in the illustrated embodiment. (As shown) Figure 6 As shown, a scattering structure 601 is disposed on the surface of the common portion SP. In one embodiment, the scattering structure 601 includes a texture. However, the scattering structure 601 may also be disposed inside the common portion SP, and may be any other structure capable of providing scattering functionality.

[0033] exist Figure 5 and Figure 6In this embodiment, the waterproof function is enhanced because the first optical element OP_1 and the second optical element OP_2 are covered by the first lens assembly L_1D and the second lens assembly L_2D. The first lens assembly L_1D may include the first lens itself (i.e., the first lens L_1) and a first auxiliary optical element L_1a connected to or integrally formed with the first lens L_1. Similarly, the second lens assembly L_2D may include the second lens itself (i.e., the second lens L_2) and a second auxiliary optical element L_2a connected to or integrally formed with the second lens L_2. More specifically, light incident on the first optical element OP_1 passes through the first lens L_1 but not through the first auxiliary optical element L_1a. Similarly, light emitted from the second optical element OP_2 passes through the second lens L_2 but not through the second auxiliary optical element L_2a.

[0034] In one embodiment, the first lens assembly L_1D and the second lens assembly L_2D are formed in different parts. In this case, if a gap exists, a waterproof material can be placed in the gap formed between these parts to enhance the waterproof function. Furthermore, in another embodiment, the first lens assembly L_1D and the second lens assembly L_2D are integrally formed, thereby providing better waterproof functionality.

[0035] The scattering structure 601 can scatter light. As described above, the second optical element OP_2 can be a light source. In this case, the scattering structure 601 is used to scatter the light emitted from the second optical element OP_2. In this way, the scattering structure 601 can prevent the second lens device L_2D from receiving light incident on the first lens device L_1D.

[0036] As mentioned above, waterproof material can be added to the gaps between components. Figure 7 A schematic diagram of an optical device according to another embodiment of the present invention is shown. Figure 7 As shown, waterproof material was added to the gaps between zones 701 and 703. The gap in zone 701 is the gap between the light-shielding structure 101 and the first auxiliary optical element L_1a. The gap in zone 703 is the gap between the light-shielding structure 101 and the second auxiliary optical element L_2a. It should be noted that waterproof material can be added to the gaps between any other elements, and is not limited to these. Figure 7 An example.

[0037] In conclusion, the waterproofing of optical devices can be improved through a simple structure, thereby mitigating leakage issues without significantly increasing costs or assembly complexity.

[0038] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. An optical device, characterized in that, include: Light-blocking structure; The first optical element is located in the first region next to the light-blocking structure; as well as A first lens device is located in the first region and on the light-blocking structure; The first lens device and the light-blocking structure form a first contact surface in the contact area, wherein the first contact surface includes a first bend.

2. The optical device as claimed in claim 1, characterized in that, The light-blocking structure includes a recessed portion and the first lens device includes a protruding portion, and the first bent portion is formed by the protruding portion being inserted into the recessed portion.

3. The optical device as claimed in claim 1, characterized in that, The light-blocking structure includes a protrusion and the first lens device includes a recess, and the first bending portion is formed by the protrusion being inserted into the recess.

4. The optical device as claimed in claim 1, characterized in that, The first optical element is an image sensor.

5. The optical device as claimed in claim 1, characterized in that, Further includes: Waterproof material is located on the first contact surface.

6. The optical device as claimed in claim 1, characterized in that, Further includes: The second optical element is located in the second region next to the light-blocking structure; The second lens assembly is located in the second region and on the second optical element; The second lens device and the light-blocking structure form a second contact surface, wherein the second contact surface includes a second bend.

7. The optical device as claimed in claim 6, characterized in that, The light-blocking structure includes a recessed portion and the second lens device includes a protruding portion, and the second bent portion is formed by the protruding portion being inserted into the recessed portion.

8. The optical device as claimed in claim 6, characterized in that, The light-blocking structure includes a protrusion and the second lens device includes a recess, and the second bending portion is formed by the protrusion being inserted into the recess.

9. The optical device as claimed in claim 6, characterized in that, The first optical element is an image sensor; The second optical element is a light source; The light-blocking structure is used to prevent the first optical element from receiving light from the second optical element.

10. The optical device as claimed in claim 6, characterized in that, Further includes: Waterproof material is located on the first contact surface.

11. The optical device as claimed in claim 6, characterized in that, The first zone and the second zone are opposite each other.

12. An optical device, characterized in that, include: Light-blocking structure; The first optical element is located in the first region next to the light-blocking structure; A first lens device is located in the first region and on the light-blocking structure; The second optical element is located in the second region next to the light-blocking structure; as well as The second lens assembly is located in the second region and on the second optical element; The first lens device and the second lens device form a common part in the light-blocking structure; The common part includes a scattering structure for scattering light.

13. The optical device as claimed in claim 12, characterized in that, The scattering structure is the texture on the surface of the common part.

14. The optical device as claimed in claim 12, characterized in that, The first lens device and the second lens device are integrally formed.

15. The optical device as claimed in claim 12, characterized in that, The second optical element is a light source; The scattering structure is used to scatter the light emitted by the first optical element.

16. The optical device as claimed in claim 15, characterized in that, The first optical element is an image sensor; The light-blocking structure is used to prevent the first optical element from receiving light from the second optical element.

17. The optical device as claimed in claim 12, characterized in that, The first zone and the second zone are opposite each other.

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