Optical device and optical apparatus

Abstract

The embodiment of the utility model provides an optical device and optical equipment, and the optical device comprises a light projection part, a light receiving part, and a lens assembly. The lens assembly includes: a first lens; a second lens arranged in parallel with the first lens in a first direction; the connecting assembly is connected with at least part of the edge of the first lens and at least part of the edge of the second lens so as to connect the first lens and the second lens; the reflecting ribs are arranged on at least one side surface, parallel to the first direction, of at least one of the connecting assembly, the first lens and the second lens, the axial direction of the reflecting ribs is perpendicular to the first direction, and each reflecting rib comprises at least one reflecting surface; and the reflecting surface is parallel to the axial direction of the reflecting rib and forms a preset included angle with the first direction. Therefore, the path of the light propagating in the optical device can be changed, the generation of dim light can be reduced or even avoided, and the misoperation caused by the dim light can be reduced or even avoided.

Description

Technical Field

[0001] This application relates to the field of optoelectronic technologies, and in particular, to an optical device and an optical equipment. Background Art

[0002] In some production and life scenarios, people often have the need for data monitoring. Currently, a commonly used method is to use various sensors for data monitoring. As a device that can convert optical signals into electrical signals, optoelectronic sensors have a wide range of applications in various fields, such as the communication field, the smart home field, the intelligent transportation field, the security field, detection, and industrial automation control.

[0003] Existing optoelectronic sensors usually include two lenses. One lens is used to emit the emitted light generated by the light projecting part of the optoelectronic sensor, and the other lens is used to converge the light reflected or refracted by an external object from the emitted light to the light receiving part of the optoelectronic sensor.

[0004] It should be noted that the above introduction to the technical background is only for the convenience of clearly and completely explaining the technical solutions of this application and facilitating the understanding of those skilled in the art. It cannot be considered that the above technical solutions are well-known to those skilled in the art just because these solutions are described in the background art part of this application. Summary of the Utility Model

[0005] The inventor found that the two lenses of existing optoelectronic sensors are integrally formed, and it is necessary to cut off the excess part to make it into a suitable shape. However, cutting will cause straight edges on the lenses, which results in part of the emitted light from the light projecting part being directly received by the light receiving part under the reflection of these straight edges, that is, stray light is generated. As part of the received light of the light receiving part, stray light will have a greater impact on the operation of the optoelectronic sensor or the device applying the optoelectronic sensor. For example, for a device applying a reflective type optoelectronic sensor, it operates in the case of no detected object. Stray light will cause the device to misidentify that there is no detected object, thereby causing the device to malfunction, reducing the accuracy of the device, and affecting the user experience.

[0006] To solve at least one of the above problems or other similar problems, embodiments of this application provide an optical device and an optical equipment.

[0007] According to the first aspect of the embodiments of this application, an optical device is provided. The optical device includes a light projecting component, a light receiving component, and a lens assembly;

[0008] The lens assembly includes:

[0009] A first lens;

[0010] A second lens, which is arranged side by side with the first lens along a first direction;

[0011] A connecting component, which is respectively connected to at least part of the edges of the first lens and at least part of the edges of the second lens to connect the first lens and the second lens;

[0012] A plurality of reflecting ribs, which are arranged on at least one surface parallel to the first direction of at least one of the connecting component, the first lens and the second lens. The axial direction of the reflecting ribs is perpendicular to the first direction. The reflecting ribs include at least one reflecting surface, and the reflecting surface is parallel to the axial direction of the reflecting ribs and forms a preset angle with the first direction.

[0013] In some embodiments, the shape of the reflecting ribs is columnar, and the reflecting surface is at least one side surface of the reflecting ribs.

[0014] In some embodiments, the reflecting surface is a plane or a curved surface.

[0015] In some embodiments, the reflecting ribs are triangular prisms; one side surface of the reflecting ribs is parallel to the first direction, and the value range of the included angle between the two side surfaces of the reflecting ribs that are not parallel to the first direction is 50° to 70°.

[0016] In some embodiments, the first lens, the second lens, the connecting component and the reflecting ribs are integrally formed.

[0017] In some embodiments, the optical device further includes:

[0018] A light-shielding component, which is arranged between the first lens and the second lens of the lens assembly.

[0019] In some embodiments, the optical device further includes:

[0020] A base, which includes a first cavity and a second cavity arranged side by side; the light-emitting component is arranged in the first cavity, and the light-receiving component is arranged in the second cavity;

[0021] The lens assembly is arranged on the base, and the first lens covers the first cavity, and the second lens covers the second cavity.

[0022] In some embodiments, the shapes of the first cavity and the second cavity are trumpet-shaped.

[0023] In some embodiments, the optical device is a photoelectric sensor.

[0024] According to the second aspect of the embodiments of the present application, an optical device is provided, wherein the optical device includes any one of the optical devices described in the first aspect of the embodiments of the present application.

[0025] One of the beneficial effects of the embodiments of the present application is that by providing a reflective rib on the lens assembly of the optical device, the path of the light that may be directly received by the light projecting part through reflection by the lens assembly can be changed, thereby reducing or even avoiding the generation of stray light, and thus reducing or even avoiding the malfunction of the optical device and the optical device using the optical device due to stray light, and further improving the accuracy of the optical device and the optical device, and improving the user experience.

[0026] Referring to the following description and drawings, specific embodiments of the present application are disclosed in detail, indicating the ways in which the principles of the present application can be adopted. It should be understood that the embodiments of the present application are not limited in scope thereby. Within the spirit and terms of the appended claims, the embodiments of the present application include many changes, modifications and equivalents.

[0027] Features described and / or illustrated for one embodiment can be used in the same or similar way in one or more other embodiments, combined with the features in other embodiments, or replace the features in other embodiments.

[0028] It should be emphasized that the term "comprising / including" when used herein refers to the presence of features, whole, steps or components, but does not exclude the presence or addition of one or more other features, whole, steps or components. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings included are used to provide a further understanding of the embodiments of the present application, which form a part of the specification, illustrate the embodiments of the present application, and together with the written description are used to explain the principles of the present application. Obviously, the drawings in the following description are only some embodiments of the present application, and for those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. In the drawings:

[0030] Figure 1 is a top view of an existing optical device;

[0031] Figure 2 is Figure 1 a schematic diagram of the lens assembly of the optical device shown;

[0032] Figure 3 is Figure 2 a partially enlarged schematic diagram of the lens assembly shown;

[0033] Figure 4 is Figure 2Schematic diagram of light propagation in the lens assembly shown;

[0034] Figure 5 is a top view of an optical device according to an embodiment of the present application;

[0035] Figure 6 is Figure 5 a schematic diagram of the lens assembly of the optical device shown;

[0036] Figure 7 is Figure 6 a partially enlarged schematic diagram of the lens assembly shown;

[0037] Figure 8 is Figure 5 a schematic diagram of light propagation in the lens assembly shown;

[0038] Figure 9 is another schematic diagram of the lens assembly according to an embodiment of the present application;

[0039] Figure 10 is a side view of an optical device according to an embodiment of the present application. Detailed implementation manners

[0040] Referring to the accompanying drawings, through the following description, the foregoing and other features of the present application will become apparent. In the description and drawings, specific embodiments of the present application are specifically disclosed, which show some embodiments in which the principles of the present application can be adopted. It should be understood that the present application is not limited to the described embodiments. On the contrary, the present application includes all modifications, variations, and equivalents falling within the scope of the appended claims.

[0041] In the embodiments of the present application, the term "and / or" includes any one and all combinations of one or more of the related listed terms. The terms "comprise", "include", "have", etc. mean the presence of the stated features, elements, components, or assemblies, but do not exclude the presence or addition of one or more other features, elements, components, or assemblies.

[0042] In the embodiments of the present application, the singular forms "a", "the", etc. may include the plural forms and should be broadly understood as "a kind" or "a class" rather than being limited to the meaning of "one"; in addition, the term "said" should be understood to include both the singular form and the plural form unless the context clearly indicates otherwise. In addition, the term "according to" should be understood as "at least partially according to...", and the term "based on" should be understood as "at least partially based on...", unless the context clearly indicates otherwise.

[0043] Figure 1 is a top view of an existing optical device, Figure 2 is Figure 1 a schematic diagram of the lens assembly of the optical device shown. AsFigure 1 and Figure 2 As shown in Figure 2 , the optical device 1 includes a lens assembly 10. The lens assembly 10 includes a first lens 101 and a second lens 102, and a connecting portion 103 for fixedly connecting the first lens 101 and the second lens 102 together.

[0044] Due to the limitations of the production process, currently, the first lens 101, the second lens 102, and the connecting portion 103 of the lens assembly 10 are usually integrally formed and made of the same material; according to different optical devices, the lens assembly 10 also needs to be cut so that it can be adapted to various types of optical devices. The inventor found that after the lens assembly 10 is cut, straight edges will be generated on the cut parts of the first lens 101, the second lens 102, and the connecting portion 103. For example Figure 1 and Figure 2 in Figure 2 , a straight edge 11 will be generated after the connecting portion 103 is cut. Since the first lens 101, the second lens 102, and the connecting portion 103 are integrally formed and made of the same material, light can also enter the connecting portion 103 and be reflected by the connecting portion 103.

[0045] Figure 3 is Figure 2 a partial enlarged schematic diagram of the lens assembly shown in Figure 2 , that is Figure 2 the partial enlarged schematic diagram in box 3 in Figure 2 , Figure 4 is Figure 2 a schematic diagram of the light propagation in the lens assembly shown in Figure 2 . As shown in Figure 3 and Figure 4 assuming that the first lens 101 is used to emit the light generated by the light projecting portion 121 ( Figure 4 shown in Figure 4 ) to the outside, and the second lens 102 is used to converge the light from the outside to the light receiving portion 122 ( Figure 4 shown in Figure 4 ), then part of the light generated by the light projecting portion 121 will be emitted by the first lens 101 and enter the connecting portion 103. Since the connecting portion 103 has a straight edge 11 ( Figure 3 shown in Figure 3 ), this straight edge 11 will directly reflect part of the light entering the connecting portion 103 into the second lens 102 and thus be received by the light receiving portion 122.

[0046] That is to say, due to the reflection of the straight edge of the connecting portion 103, the light receiving portion 122 receives light that has not been reflected or refracted by an external object. Here, it is called "stray light". The propagation path of the stray light in the lens assembly 10 is, for example Figure 3 shown by the arrow in Figure 3 , that is, a part of the light generated by the light projecting portion 121 (see Figure 3 and Figure 4The first light beam 131) enters the connecting part 103 which is integrally formed with and made of the same material as the first lens 101 through reflection, refraction, etc. via the first lens 101. When a part of the first light beam 131 reaches the straight edge 11 of the connecting part 103, a part of it leaves the lens assembly 10 through refraction ( Figure 3 and Figure 4 not shown), and another part (see Figure 3 and Figure 4 The second light beam 132) enters the second lens 102 through reflection and is then received by the light-receiving part 122 through reflection, refraction, etc.

[0047] Stray light has a great impact on the performance of optical devices. For example, for a device corresponding to a photoelectric sensor using a reflection type model, it operates in the case of no detected object. Since the stray light is directly received by the light-receiving part 122 from the light-projecting part 121 through the lens assembly 10 without being reflected by an external object, the detection result obtained by the device based on the stray light may be "no detected object", thus causing the device to malfunction, reducing the accuracy of the device, and affecting the user experience.

[0048] To solve at least one of the above problems or other similar problems, embodiments of the present application provide an optical device and an optical device. The implementation manners of the embodiments of the present application will be described below with reference to the accompanying drawings.

[0049] Embodiments of the present application provide an optical device, Figure 5 is a top view of the optical device according to an embodiment of the present application. As Figure 5 shown, the optical device 2 according to an embodiment of the present application includes a light-projecting component 221 ( Figure 5 not shown, please refer to Figure 8 and the corresponding description), a light-receiving component 222 ( Figure 5 not shown, please refer to Figure 8 and the corresponding description), and a lens assembly 20. Among them, the light-projecting component 221 is used to generate emitted light and emit the emitted light to the outside through the lens assembly 20; the light-receiving component 222 is used to receive the light after the emitted light is reflected, refracted, etc. by an external object, that is, receive light. The optical device performs corresponding optoelectronic processing based on the emitted light and the received light to achieve different purposes, such as object detection, parameter detection, etc. The present application mainly relates to the improvement of the structure of the optical device, so the content related to the application of the optical device and optoelectronic processing is not elaborated herein, and specific references can be made to related prior arts.

[0050] Figure 6 is Figure 5 a schematic diagram of the lens assembly of the optical device shown in Figure 6 As shown, the lens assembly 20 includes a first lens 201, a second lens 202, a connecting assembly 203, and a plurality of reflecting ribs 204.

[0051] Among them, the first lens 201 covers the light projecting component 221 ( Figure 6 not shown), and is used to emit the emitted light generated by the light projecting component 221; the second lens 202 covers the light receiving component 222 ( Figure 6 not shown), and is used to converge the light from the outside to the light receiving component 222. The first lens 201 and the second lens 202 are arranged side by side along the first direction X.

[0052] The connecting component 203 is respectively connected to at least part of the edges of the first lens 201 and at least part of the edges of the second lens 202, and is used to connect and fix the first lens 201 and the second lens 202. For example, as Figure 6 shown, the connecting component 203 is arranged around the edges of the first lens 201 and the second lens 202. In practical applications, the connecting component 203 can also be only arranged on part of the edges of the first lens 201 and the second lens 202. For example, the connecting component 203 can be arranged between the first lens 201 and the second lens 202 and connected to the opposite edges of the first lens 201 and the second lens 202; or, the connecting component 203 can be arranged on Figure 6 the left side of the first lens 201 and the second lens 202 as shown, and is respectively connected to the edges on the left side of the first lens 201 and the second lens 202; or, the connecting component 203 can be arranged on Figure 6 the right side of the first lens 201 and the second lens 202 as shown, and is respectively connected to the edges on the right side of the first lens 201 and the second lens 202. Thus, the first lens 201 and the second lens 202 can be connected together and the relative positions of the two can be fixed.

[0053] The number of the reflecting ribs 204 includes a plurality, and the plurality of reflecting ribs 204 are arranged on at least one surface parallel to the first direction X of at least one of the connecting component 203, the first lens 201 and the second lens 202. For example, as Figure 6 shown, the plurality of reflecting ribs 204 are simultaneously arranged on the surfaces parallel to the first direction X of the connecting component 203, the first lens 201 and the second lens 202, and the reflecting ribs 204 are arranged on both the left and right sides parallel to the first direction X of the connecting component 203, the first lens 201 and the second lens 202. In addition, the reflecting ribs 204 can be arranged on at least one surface parallel to the first direction X of the connecting component 203, for example Figure 6 the reflecting ribs shown in box 5; or, the reflecting ribs 204 can be arranged on at least one surface parallel to the first direction X of the first lens 201, for example Figure 6 the reflecting ribs shown in box 6; or, the reflecting ribs 204 can be arranged on at least one surface parallel to the first direction X of the second lens 202, for exampleFigure 6 the reflective rib shown in box 7 in Figure 6 at least two of boxes 5, 6, and 7 in Figure 6 This is an example of the setting method of the reflective rib 204 provided in the embodiments of the present application, and the present application is not limited thereto. The more the number of the reflective ribs 204 and the larger the setting range, the better the effect of suppressing stray light.

[0054] Taking the multiple reflective ribs 204 provided on the left side of the connection component 203, the first lens 201, and the second lens 202 as an example, the reflective ribs 204 are closely arranged along the first direction X, and the row of reflective ribs 204 on the left is directly connected to the left edges of the first lens 201 and the second lens 202 as a whole; or, when the left edges of the first lens 201 and the second lens 202 are connected with the connection component 203, the row of reflective ribs 204 on the left is connected to the surface of the left connection component 203 facing away from the first lens 201 and the second lens 202 as a whole. The row of reflective ribs 204 provided on the right side of the first lens 201 and the second lens 202 is similar, and reference may be made to the setting of the row of reflective ribs 204 on the left here.

[0055] For each reflective rib 204, its axis is perpendicular to the first direction X. For example, the axis of each reflective rib 204 is parallel to Figure 6 the direction perpendicular to the paper surface and outward or the direction perpendicular to the paper surface and inward in Figure 7 is Figure 6 a partial enlarged schematic diagram of the lens assembly shown in Figure 6 a partial enlarged schematic diagram in box 4 in Figure 7 shown, the reflective rib 204 has a reflective surface 2041, and the reflective surface 2041 is parallel to the axis of the reflective rib 204 and forms a preset angle with the first direction X. It can be understood that the angle between the reflective surface 2041 and the first direction X refers to an angle less than or equal to 90°.

[0056] The reflective surface 2041 can change the path of the light entering the reflective rib 204 from the first lens 201 or change the path of the light entering the reflective rib 204 from the first lens 201 via the connection component 203, and reflect the above light to the outside of the lens assembly 20 or the optical device 2. Figure 8 is Figure 6 a schematic diagram of the light propagation in the lens assembly shown in Figure 7 and Figure 8As shown, a part of the light rays generated by the light projecting component 221 ( Figure 8 shown in) (see Figure 7 and Figure 8 for the third light ray 231) enters the reflecting rib 204 from the first lens 201 through reflection, refraction, etc., and then a part of it leaves the lens assembly 20 through refraction ( Figure 7 and Figure 8 not shown), and another part (see Figure 7 and Figure 8 for the fourth light ray 232) is reflected by the reflecting surface 2041 and then continues to leave the optical device 2 through reflection, refraction, etc., that is, the fourth light ray 232 propagates to the outside of the optical device 2. Since the reflecting surface 2041 forms a preset angle with the first direction X, it is possible to reduce or even avoid the fourth light ray 232 from being reflected into the second lens 202, and further reduce or even avoid the light rays emitted by the light projecting component 221 from being directly received by the light receiving component 222 through the lens assembly 20.

[0057] Figure 7 and Figure 8 only show the reflecting surfaces 2041 of two reflecting ribs 204 reflecting the light rays, and the reflection principles of the reflecting surfaces 2041 of the remaining reflecting ribs 204 are similar.

[0058] Thus, by providing reflecting ribs on the lens assembly of the optical device, it is possible to change the path of the light rays that may be directly received by the light projecting part through reflection by the lens assembly, thereby reducing or even avoiding the generation of stray light, and further reducing or even avoiding malfunction of the optical device and the optical equipment using the optical device due to stray light, and then improving the accuracy of the optical device and the optical equipment and enhancing the user experience. In some embodiments, the preset included angle α ranges from greater than or equal to 40 degrees to less than or equal to 80 degrees.

[0059] In some embodiments, the preset included angle α ranges from greater than or equal to 55 degrees to less than or equal to 75 degrees. At this time, the reflecting surface 2041 can reflect most of the light rays emitted from the first lens 201 to the outside of the optical device 2, and a better effect of suppressing stray light can be achieved.

[0060] In some embodiments, when the reflecting rib 204 is provided on at least one surface of the first lens 201 perpendicular to the first direction X, the reflecting rib 204 can be provided at a partial edge of the first lens 201 perpendicular to the first direction X; similarly, when the reflecting rib 204 is provided on at least one surface of the second lens 202 perpendicular to the first direction X, the reflecting rib 204 can be provided at a partial edge of the second lens 202 perpendicular to the first direction X. For example, as Figures 5 to 8As shown, the reflective rib 204 is disposed on both sides of the partial edges of the first lens 201 and the second lens 202 perpendicular to the first direction X. The reflective rib 204 is disposed outside the upper half edges on the left and right sides of the first lens 201, and outside the lower half edges on the left and right sides of the second lens 201. In some other embodiments, the reflective rib 204 is disposed on both sides of the edges of the first lens 201 and the second lens 202 parallel to the first direction X, that is, the reflective rib 204 is disposed on the outside of all the edges of the first lens 201 and the second lens 202 perpendicular to the first direction X. Thus, the number of the reflective ribs 204 disposed on both sides of the first lens 201 and the second lens 202 increases, and correspondingly, the effect of suppressing stray light is better.

[0061] In some embodiments, the shape of the reflective rib 204 is columnar, and the reflective surface 2041 of the reflective rib 204 is at least one side surface of the reflective rib 204.

[0062] For example, the shape of the reflective rib 204 is a prism, that is, the cross-section of the reflective rib 204 is a polygon. At this time, the reflective surface of the reflective rib 204 is at least one side surface of the prism and is a plane. For example, as Figures 5 to 8 shown, the shape of the reflective rib 204 is a triangular prism. One side surface of the triangular prism-shaped reflective rib 204 is parallel to the first direction X, and this side surface coincides with the edges on both sides of the first lens 201 and the second lens 202, or when there is a connecting component 203 disposed on the edges on both sides of the first lens 201 and the second lens 202, one side surface of the triangular prism-shaped reflective rib 204 is parallel to the first direction X, and this side surface coincides with the connecting component 203. The side surfaces of the triangular prism-shaped reflective rib 204 that are not parallel to the first direction X and whose included angle with the first direction X satisfies the value range of the above preset included angle α are used as the reflective surface 2041 of the reflective rib 204.

[0063] In some embodiments, as Figure 7 shown, the value range of the included angle β between the two side surfaces of the triangular prism-shaped reflective rib 204 that are not parallel to the first direction X is 50° to 70°. Thus, the reflective surface 2041 can reflect most of the light emitted from the first lens 201 to the outside of the optical device 2, and a better effect of suppressing stray light can be achieved.

[0064] In some embodiments, Figure 7 the edges opposite to the side surfaces of the emission rib 204 parallel to the first direction X are provided with chamfers.

[0065] In some embodiments, the reflective rib 204 has at least one arc surface, that is, the cross-section of the reflective rib 204 is a shape with at least one arc edge. For example, the cross-section of the reflective rib 24 is semi-circular. Figure 9Another schematic diagram of the lens module according to an embodiment of the present application is as follows: Figure 9 As shown, the reflecting rib 204 has a curved surface, and at least a part of the curved surface serves as the reflecting surface 2041 of the reflecting rib 204. Figure 9 The remaining structures in Figure 7 are the same as those in

[0066] and will not be repeated here. When the reflecting surface 2041 is a curved surface, the preset angle α between the reflecting surface 2041 and the first direction X refers to the angle between the tangent of the curved surface and the first direction X. Figure 9 As shown, the top of the reflecting rib 204 is provided with a chamfer, and the present application does not limit this.

[0067] In some embodiments, the first lens 201, the second lens 202, the connecting component 203, and the reflecting rib 204 are integrally formed. Thus, it is convenient for the production and manufacturing of the lens module, meets the requirements of the current lens module production process, and is conducive to implementation.

[0068] In some embodiments, as shown in Figures 5 to 8 the optical device 2 further includes:

[0069] A light-shielding component 23, which is disposed between the first lens 201 and the second lens 202 of the lens module 2. For example, as shown in Figure 7 the light-shielding component 23 physically separates the first lens 201 and the second lens 202, and can reduce the light directly entering the second lens 202 from the first lens 201. The light-shielding component 23 is not integrally formed with the lens module 20. Therefore, the light-shielding component 23 can directly adopt a light-impermeable material to physically block the light.

[0070] Figure 10 A side view of the optical device according to an embodiment of the present application is as follows: Figure 10 As shown, the optical device 2 further includes:

[0071] A base 24, which includes a first cavity 241 and a second cavity 242 arranged in parallel; a light-projecting component 221 is disposed in the first cavity 241, and a light-receiving component 222 is disposed in the second cavity 242;

[0072] The lens module 20 is disposed on the base 24, and the first lens 201 covers the first cavity 241, and the second lens 202 covers the second cavity 242.

[0073] In some embodiments, the shapes of the first cavity 241 and the second cavity 242 are trumpet-shaped. For example, as shown in Figure 10 the first cavity 241 and the second cavity 242 are trumpet-shaped.

[0074] In some embodiments, a plurality of stepped structures 243 are provided inside the second cavity 242. Thus, the number of reflecting surfaces inside the second cavity 242 can be reduced, and further, the reflection of the received light inside the second cavity 242 can be reduced, which is beneficial to suppressing stray light.

[0075] In some embodiments, a plurality of stepped structures 244 are provided inside the first cavity 241. Thus, the number of reflecting surfaces inside the first cavity 241 can be reduced, and further, the reflection of the emitted light inside the first cavity 241 can be reduced, which is beneficial to suppressing stray light.

[0076] In some embodiments, the optical device is a photoelectric sensor.

[0077] The embodiment of the present application further provides an optical device, wherein the optical device includes any one of the optical devices in the foregoing embodiments of the present application.

[0078] In some embodiments, the optical device further includes at least one external device, which is connected to the above optical device by a wired connection method or a wireless connection method, and receives the signal detected by the optical device through the wired connection method or the wireless connection method. The external device includes, for example, but is not limited to, a device for performing at least one of the processes of photoelectric conversion, analysis, display, etc. on the signal detected by the optical device.

[0079] In some embodiments, the wired connection method includes, for example, but is not limited to, connecting through a signal transmission line; the wireless connection method includes, for example, but is not limited to, connecting through Bluetooth, WiFi, zigbee, 2G / 3G / 4G / 5G / 6G, and various future wireless communication methods.

[0080] In some embodiments, the optical device includes, for example, but is not limited to, a tachometer, a smoke alarm, an automatic door, and a security monitoring device, etc.

[0081] Thus, by providing a reflecting rib on the lens assembly of the optical device, the path of the light that may be directly received by the light projecting part through reflection by the lens assembly can be changed, thereby reducing or even avoiding the generation of stray light, and thus reducing or even avoiding the malfunction of the optical device and the optical device using the optical device due to stray light, and further improving the accuracy of the optical device and the optical device, and improving the user experience.

[0082] The above describes the embodiments of the present application in combination with specific implementation manners, but those skilled in the art should understand that these descriptions are exemplary and do not limit the protection scope of the embodiments of the present application. Those skilled in the art can make various variations and modifications to the embodiments of the present application according to the spirit and principle of the embodiments of the present application, and these variations and modifications are also within the scope of the embodiments of the present application.

[0083] The preferred embodiments of the embodiments of the present application have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and thus the appended claims are intended to cover all such features and advantages that fall within the true spirit and scope of these embodiments. In addition, since many modifications and variations are readily contemplated by those skilled in the art, the embodiments of the present application are not to be limited to the exact structures and operations illustrated and described, but may cover all suitable modifications and equivalents that fall within their scope.

Claims

1. An optical device, characterized in that: The optical device includes a light-projecting component, a light-receiving component and a lens assembly; The lens assembly comprises: First lens; A second lens, which is arranged in parallel with the first lens along a first direction; a connecting assembly connected to at least a portion of an edge of the first lens and at least a portion of an edge of the second lens, respectively, so as to connect the first lens and the second lens; A plurality of reflective ribs are arranged on at least one side surface of at least one of the connecting component, the first lens and the second lens which is parallel to the first direction, the axial direction of the reflective rib is perpendicular to the first direction, and the reflective rib includes at least one reflective surface which is parallel to the axial direction of the reflective rib and forms a preset angle with the first direction.

2. The optical device according to claim 1, characterized in that The reflective rib is in a columnar shape, and the reflective surface is at least one side surface of the reflective rib.

3. The optical device according to claim 2, characterized in that: The reflecting surface is a flat surface or a curved surface.

4. The optical device according to claim 3, characterized in that: The reflective ribs are triangular prisms; One side surface of the reflective rib is parallel to the first direction, and an angle between two side surfaces of the reflective rib that are not parallel to the first direction is in a range of 50° to 70°.

5. The optical device according to claim 1, characterized in that: The first lens, the second lens, the connecting assembly and the reflective rib are integrally formed.

6. The optical device according to claim 1, characterized in that: The optical device further comprises: The light shielding component is arranged between the first lens and the second lens of the lens assembly.

7. The optical device according to claim 1, characterized in that: The optical device further comprises: The base comprises a first cavity and a second cavity arranged in parallel; the light-projecting component is arranged in the first cavity, and the light-receiving component is arranged in the second cavity; The lens assembly is disposed on the base, and the first lens covers the first cavity, and the second lens covers the second cavity.

8. The optical device according to claim 7, characterized in that: The first cavity and the second cavity are trumpet-shaped.

9. The optical device according to claim 1, characterized in that: The optical device is a photoelectric sensor.

10. An optical device, characterized in that: The optical apparatus comprises the optical device according to any one of claims 1-9.

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