Multi-sensor single-lens camera module

Abstract

The utility model relates to a multi-sensor single-lens camera module, comprising a single-lens assembly comprising a lens with an aspheric lens group and a lens barrel; the substrate assembly is arranged on the image side of the lens, and at least two sensor mounting grooves are formed in the substrate assembly; the plurality of image sensors are respectively fixed in the mounting grooves, and the photosensitive surfaces of the sensors and the optical axis of the lens form different included angles; the beam splitter prism assembly is arranged between the lens and the sensor and comprises at least two beam splitting surfaces; and the signal processing module is electrically connected with each image sensor. According to the multi-Sensor single-lens CCM module provided by the technical scheme of the invention, the single lens is used for providing light for a plurality of Sensors at the same time, so that higher performance and more functions are realized. And the plurality of sensors can be arranged in a linear manner, a matrix manner and the like, so that each sensor can obtain the optimal light irradiation and image acquisition effects. By using a plurality of Sensors, performance indexes such as higher resolution, signal to noise ratio and the like can be realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to camera technology field, concretely, a kind of multi-sensor single lens camera module. BACKGROUND

[0002] With the continuous development of electronic equipment, the performance requirements of camera are higher and higher. The traditional camera module usually adopts the combination of a single Sensor (image sensor) and a single lens. In some specific scenarios, it may not meet the needs of high resolution, high dynamic range, multi-angle shooting, etc. SUMMARY

[0003] The utility model aims at providing a kind of multi-sensor single lens camera module, to solve the partial technical problems existing in prior art.

[0004] Specifically, the utility model concrete technical scheme is as follows: a kind of multi-sensor single lens camera module, comprising:

[0005] Single lens assembly, containing lens with aspheric lens group and lens barrel;

[0006] Substrate assembly, is set to the image side of lens, at least two sensor mounting grooves are arranged on it;

[0007] Multiple image sensors are respectively fixed in mounting groove, and the different angles of each sensor photosurface and lens optical axis are formed;

[0008] Splitting prism assembly, is set between lens and sensor, containing at least two splitting surfaces;

[0009] Signal processing module, is electrically connected with each image sensor.

[0010] As preferred technical scheme, splitting prism assembly contains:

[0011] First right-angle prism, its inclined plane is coated with half-transmission half-reflection film;

[0012] Second right-angle prism and first right-angle prism are glued to form cubic structure;

[0013] At least one additional reflection prism is attached to the light exit surface of cubic structure through optical adhesive layer.

[0014] As preferred technical scheme, sensor mounting groove is arranged in matrix.

[0015] As preferred technical scheme, each groove bottom is provided with heat-conducting copper column.

[0016] As preferred technical scheme, further comprising:

[0017] The dynamic filter switching mechanism comprises a rotatable filter disc and a micro stepping motor.

[0018] The filter disc is arranged on the light inlet side of the lens, and the disc body is provided with an infrared cut-off filter, a narrowband filter and a polarizing filter.

[0019] As a preferred technical solution, the single-lens assembly comprises:

[0020] The six-piece optical system is composed of four plastic aspherical lenses and two glass spherical lenses.

[0021] The inner wall of the lens barrel is provided with a spiral light guide pattern.

[0022] The adjustable focus voice coil motor is integrated in the rear end of the lens barrel.

[0023] As a preferred technical solution, it further comprises:

[0024] The heat dissipation and flow guide structure comprises a graphene heat dissipation layer arranged on the back of the substrate.

[0025] The annular heat dissipation fin is arranged around the lens barrel.

[0026] The micro thermoelectric refrigerator is embedded in the substrate.

[0027] As a preferred technical solution, the image sensor comprises:

[0028] The first sensor is a global shutter CMOS sensor.

[0029] The second sensor is a back-illuminated BSI sensor.

[0030] The third sensor is an event-driven vision sensor.

[0031] The pixel size difference of each sensor is greater than 0.5 μm.

[0032] As a preferred technical solution, it further comprises:

[0033] The active alignment mechanism comprises a three-dimensional precision displacement stage and a laser alignment sensor.

[0034] The displacement stage is mechanically connected with the substrate assembly.

[0035] The laser alignment sensor is arranged on the outside of the lens barrel, and the output end is connected with the displacement stage controller.

[0036] As a preferred technical solution, it further comprises:

[0037] The composite anti-shake mechanism comprises a substrate suspension type OIS driving frame.

[0038] The sensor displacement type OIS compensation mechanism and the lens tilting type OIS compensation mechanism.

[0039] The utility model discloses the beneficial effect is: this technical scheme provides a kind of CCM module of multiple Sensor single lens, by using single lens simultaneously for multiple Sensor provides light, realize higher performance and more function.Multiple Sensor can adopt linear arrangement, matrix arrangement etc., ensure that every Sensor can obtain the best light irradiation and image acquisition effect.By using multiple Sensor, it can realize higher resolution, dynamic range, signal-to-noise ratio etc. BRIEF DESCRIPTION OF DRAWINGS

[0040] In order to more clearly illustrate the technical scheme of the embodiments of the utility model, the following will be needed to use the drawings in the embodiments briefly introduced, it should be understood that the following drawings only shows some embodiments of the utility model, therefore should not be seen as the limitation to the scope, for the ordinary skilled person in the art comes, without the premise of creative labor, can also obtain other related drawings according to these drawings.

[0041] Figure 1 The utility model discloses a kind of structure schematic diagram of multiple sensor single lens camera module for the embodiment of the utility model;

[0042] Figure 2 The multiple sensor structure schematic diagram for the embodiment of the utility model is proposed;

[0043] Figure 3 The heat dissipation flow guide structure schematic diagram for the embodiment of the utility model is proposed.

[0044] Legend of drawing mark: lens 1;Lens barrel 11;Substrate assembly 2;Multiple image sensor 3;First sensor 31;Second sensor 32;Third sensor 33;Flexible circuit board 4;Mounting groove 5;Split light prism component 6;Protective film 7;Heat dissipation flow guide structure 8;Graphene heat dissipation layer 81;Annular heat dissipation fin 82;Micro thermoelectric refrigerator 83. DETAILED DESCRIPTION

[0045] Example implementations will now be described more fully with reference to the accompanying drawings. Example implementations may, however, be implemented in many different forms and should not be construed as limited to the examples set forth herein; rather, these implementations are provided so that this disclosure will be thorough and complete, and will fully convey the scope of example implementations to those skilled in the art.

[0046] Moreover, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the application. One skilled in the relevant art will recognize, however, that the application can be practiced without one or more of the specific details, or with other methods, components, materials, and so forth. In other instances, well-known structures, devices, implementations, or operations are not shown or described in detail to avoid obscuring aspects of the application.

[0047] The block diagrams shown in the drawings are functional entities, which do not necessarily have to correspond to physically independent entities. That is, these functional entities can be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different network and / or processor devices and / or microcontroller devices.

[0048] The flowcharts shown in the drawings are only illustrative, and do not necessarily include all contents and operations / steps, nor are they necessarily executed in the order described. For example, some operations / steps can be further decomposed, and some operations / steps can be combined or partially combined, so the actual execution order can be changed according to actual conditions.

[0049] It should be noted that "multiple" as mentioned herein refers to two or more.

[0050] Embodiments

[0051] As shown in Figure 1 a multi-sensor single-lens camera module proposed in the embodiment, comprising:

[0052] A single-lens assembly includes a lens with an aspherical lens group and a lens barrel; the lens is provided with a protective film.

[0053] A substrate assembly is arranged on the image side of the lens and is provided with at least two sensor mounting grooves;

[0054] A plurality of image sensors are respectively fixed in the mounting grooves, and the light-sensitive surface of each sensor forms different angles with the optical axis of the lens; specifically, the flexible printed circuit board is provided with mounting grooves.

[0055] A light-splitting prism assembly is arranged between the lens and the sensor and includes at least two light-splitting surfaces;

[0056] A signal processing module is electrically connected to each image sensor.

[0057] Preferably, the light-splitting prism assembly includes:

[0058] A first right-angle prism has a half-mirror film coated on the inclined surface;

[0059] The second right-angle prism is glued with the first right-angle prism to form a cubic structure;

[0060] The at least one additional reflecting prism is attached to the light-out surface of the cubic structure through an optical glue layer.

[0061] Preferably, the sensor mounting grooves are arranged in a matrix.

[0062] Preferably, the sensor mounting grooves are arranged in a matrix.

[0063] The dynamic filter switching mechanism comprises a rotatable filter disc and a micro stepping motor.

[0064] The filter disc is arranged on the light-in side of the lens, and the disc body is provided with an infrared cut filter, a narrowband filter and a polarizing filter.

[0065] Preferably, the single-lens assembly comprises:

[0066] The six-piece optical system is composed of four plastic aspherical lenses and two glass spherical lenses.

[0067] The inner wall of the lens barrel is provided with a spiral light guide pattern.

[0068] The adjustable focus voice coil motor is integrated in the rear end of the lens barrel.

[0069] Preferably, the single-lens assembly comprises:

[0070] The heat dissipation and flow guiding structure comprises a graphene heat dissipation layer arranged on the back surface of the substrate.

[0071] The annular heat dissipation fin is arranged around the lens barrel.

[0072] The micro thermoelectric refrigerator is embedded in the substrate.

[0073] Preferably, the image sensor comprises:

[0074] The first sensor is a global shutter CMOS sensor.

[0075] The second sensor is a back-illuminated BSI sensor.

[0076] The third sensor is an event-driven vision sensor.

[0077] The pixel size difference of each sensor is greater than 0.5 μm.

[0078] Preferably, the single-lens assembly comprises:

[0079] The active alignment mechanism comprises a three-dimensional precision displacement stage and a laser alignment sensor.

[0080] The displacement stage is mechanically connected with the substrate assembly.

[0081] The laser alignment sensor is arranged outside the lens barrel, and an output end is connected to a displacement table controller.

[0082] Preferably, further comprising:

[0083] The composite anti-shake mechanism comprises a substrate suspension type OIS driving frame.

[0084] The sensor displacement type OIS compensation mechanism and the lens tilting type OIS compensation mechanism.

[0085] The above detailed description of the specific embodiments has further detailed the purpose, technical scheme and beneficial effects of the present application, and it should be understood that the above detailed description is only a specific embodiment of the present application and is not used to limit the protection scope of the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A multi-sensor single-lens camera module, characterized by comprising: It comprises: a single lens assembly, including a lens with an aspherical lens group and a lens barrel; a substrate assembly, provided on the image side of the lens, and provided with at least two sensor mounting grooves; a plurality of image sensors, respectively fixed in the mounting grooves, and each sensor photosensitive surface forms different angles with the lens optical axis; a light splitting prism assembly, provided between the lens and the sensor, including at least two light splitting surfaces; a signal processing module, electrically connected with each image sensor.

2. The multi-sensor single-lens video camera module of claim 1, wherein, The light splitting prism assembly comprises: a first right-angle prism, whose inclined surface is coated with a half-mirror half-reflection film; a second right-angle prism, which is glued with the first right-angle prism to form a cubic structure; at least one additional reflection prism is attached to the light-emitting surface of the cubic structure through an optical adhesive layer. 3.The multi-sensor single-lens video camera module of claim 1, wherein, The sensor mounting grooves are arranged in a matrix.

4. The multi-sensor single-lens video camera module of claim 3, wherein, Each of the mounting grooves is provided with a heat-conducting copper column at the bottom.

5. The multi-sensor single-lens video camera module of claim 1, wherein, It further comprises: a dynamic filter switching mechanism, including a rotatable filter disc and a micro stepping motor; The filter disc is provided on the light-entering side of the lens, and the disc body is provided with an infrared cut-off filter, a narrow-band filter and a polarizing filter.

6. The multi-sensor single-lens video camera module of claim 1, wherein, The single lens assembly comprises a six-piece optical system composed of four plastic aspherical lenses and two glass spherical lenses; The inner wall of the lens barrel is provided with a spiral light guide pattern; An adjustable focus voice coil motor is integrated in the rear end of the lens barrel.

7. The multi-sensor single-lens video camera module of claim 1, wherein, It further comprises: a heat dissipation and flow guide structure, including a graphene heat dissipation layer provided on the back of the substrate; a ring-shaped heat dissipation fin provided around the lens barrel; a micro thermoelectric refrigerator embedded in the substrate.

8. The multi-sensor single-lens video camera module of claim 1, wherein, The image sensor comprises: The first sensor is a global shutter CMOS sensor; The second sensor is a back-illuminated BSI sensor; The third sensor is an event-driven vision sensor; The pixel size difference of each sensor is more than 0.5μm.

9. The multi-sensor single-lens video camera module of claim 1, wherein, It further comprises: an active alignment mechanism, including a three-dimensional precision displacement stage and a laser alignment sensor; The displacement stage is mechanically connected with the substrate assembly; The laser alignment sensor is provided on the outside of the lens barrel, and the output end is connected with the displacement stage controller. 10.The multi-sensor single-lens camera module according to any one of claims 1-9, wherein, It further comprises: a composite anti-shake mechanism, including: a substrate suspension type OIS drive frame; a sensor displacement type OIS compensation mechanism and a lens tilting type OIS compensation mechanism.

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