Summary of the invention
In view of this, the invention provides a kind of camera module and the electronic installation that can ensure consistency and the Consumer's Experience of focusing.
For achieving the above object, the invention provides a kind of camera module, described camera module comprises housing, camera lens, half-reflecting half mirror, imageing sensor and luminance sensor, described housing comprises a host cavity, described camera lens is positioned at one end of described host cavity and is closed by host cavity, described half-reflecting half mirror and imageing sensor to be fixed in described host cavity and all coaxially to arrange with camera lens, described half-reflecting half mirror is between camera lens and imageing sensor, in order to the light via described camera lens incidence is divided into the first light and the second light, described imageing sensor receives described first light or the second light, described luminance sensor is fixed in described host cavity, described luminance sensor place axis becomes angle to arrange with described imageing sensor place axis, described luminance sensor is in order to receive described second light or the first light.
Wherein, described imageing sensor is color image sensor, and described imageing sensor can obtain image information in described first light or the second light and part luma information, and described luminance sensor is in order to obtain the monochrome information of image.
Wherein, described camera module also comprises image processor, described image processor is electrically connected with described imageing sensor and luminance sensor, and described image processor carries out process and imaging in order to the phase difference that image information, part luma information and the described luminance sensor passed over by described imageing sensor passes over.
Wherein, described camera module also comprises a filter, and it is interior between camera lens and half-reflecting half mirror that described filter is fixed on described host cavity.
Wherein, described host cavity is provided with an opening, and described camera lens comprises driving mechanism and lens, and described lens are positioned at described opening part, and described driving mechanism drives described lens to move, to regulate the focal position of described lens.
Wherein, described CD-ROM drive motor is voice coil motor, mid-motor or closed loop motor.
Wherein, described half-reflecting half mirror comprises light splitting surface, and described light splitting surface and described camera lens optical axis are miter angle.
Wherein, described camera module also comprises flexible PCB, and described flexible PCB is positioned at described enclosure interior, and described flexible PCB is all electrically connected with described imageing sensor and luminance sensor.
Wherein, described luminance sensor place axis and the setting at a right angle of described imageing sensor place axis, and described luminance sensor and described imageing sensor effective coverage geometric center and lens optical imaging circle center superposition.
The invention provides a kind of electronic installation, it comprises body, display screen, mainboard, is arranged at the control element of mainboard, it is characterized in that, electronic installation also comprises described camera module, described camera module and mainboard are all fixed on described body, described camera module is electrically connected described control element, and described control element controls described camera module and takes pictures, to obtain the image information of described camera module and to show described image information by the display screen of electronic installation.
Camera module provided by the invention, by arranging half-reflecting half mirror below camera lens, the light via camera lens incidence is divided into the first light and the second light, then imageing sensor is set and luminance sensor is fixed in the host cavity of housing, imageing sensor can receive the first light or the second light, and luminance sensor can receive the second light or the first light.By the division of labor effect of imageing sensor and luminance sensor, thus focusing consistency can be put forward, improve image taking effect, and then improve Consumer's Experience.
Specific embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
The invention provides a kind of electronic installation, described electronic installation comprises body (not identifying in figure), display screen (not identifying in figure), mainboard (not identifying in figure), is arranged at control element on described mainboard and camera module, and described camera module, display screen and described mainboard are all located on described terminal body.Described camera module and described display screen are all electrically connected described control element, and described control element controls described camera module and takes pictures, to obtain the image information of described camera module and to control described display screen and show described image information.
Described electronic installation 100 can be include but not limited to the mobile communication equipments such as mobile phone, personal digital assistant (PersonalDigitalAssistant, PDA), panel computer.In the present embodiment, be described for mobile phone for described electronic installation 100.
Refer to Fig. 1 and Fig. 2, described camera module 100 comprises housing 10, camera lens 20, half-reflecting half mirror 30, imageing sensor 40 and luminance sensor 50, and described housing 10 comprises host cavity 11.Described camera lens 20 is positioned at one end of described host cavity 11 and is closed by host cavity 11.Described half-reflecting half mirror 30 and imageing sensor 40 are fixed in described host cavity 11, and all coaxially arrange with camera lens.Described half-reflecting half mirror 30 between described camera lens 20 and imageing sensor 40, in order to the light L1 via the incidence of described camera lens 20 is divided into the first light L2 and the second light L3.Described imageing sensor 40 receives described first light L2 or the second light L3.Described luminance sensor 50 is fixed in described host cavity 11, and described luminance sensor 50 place axis becomes angle to arrange with described imageing sensor 40 place axis, and described luminance sensor 50 is in order to receive described second light L3 or described first light L2.
In the present embodiment, described housing 10 can be made up of plastic parts.Described housing 10 can be rectangular or cylindrical etc.Described host cavity 11 is formed in housing.Preferably, described host cavity 11 comprises diapire 112, the roof 113 relative with described diapire 112 and perisporium 114.Described opening 111 is located on roof 113.In other embodiments, described housing 10 can also be made up of box body and cover plate, is then opened on described cover plate by described opening 111.Described imageing sensor 40 is fixed on described diapire 112.Described luminance sensor 50 is fixed on described perisporium 114.
Described camera lens 20 utilizes lens or compound lens to focus on scenery, thus realizes described light L1 to be projected in described host cavity 11, thus makes described imageing sensor 40 and described luminance sensor 50 clearly can identify scene image.In the present embodiment, described camera lens 20 comprises driving mechanism 21 and lens 22, described lens 22 are positioned at described opening 111 place, light outside described opening 111 is transmitted through on described half-reflecting half mirror 30 via described lens 22, described driving mechanism 21 drives described lens 22 to move, to regulate the focal position of described lens 22.Particularly, described driving mechanism 21 is voice coil motor, mid-motor or closed loop motor.Described driving mechanism 21 can be located at all sides of described lens 22, below or other positions, to realize the effect driving the movement of described lens 22.In the present embodiment, described lens 22 comprise the first lens 221 and the second lens 222 stacked gradually, described first lens 221 and described second lens 222 light L1 described in transmission successively.In the present embodiment, described first lens 221 and described second lens 222 are convex lens.Described camera lens 20 also comprises sleeve 223, described first lens 221 and described second lens 222 are fixed on the two ends of sleeve 223 successively, the lateral wall of described sleeve 223 is bolted in described driving mechanism 21, described driving mechanism 21 drives described sleeve 223 to move, namely realize described sleeve 223 to move back and forth along the opening direction of described host cavity 11, thus drive described first lens 221 and described second lens 222 to move back and forth along the opening direction of described host cavity 11, and then drive described first lens 221 and described second lens 222 near or away from scenery, thus the focal position realizing described lens 22 regulates.In other embodiments, described driving mechanism 21 can also be Electromagnetic Drive, and described lens 22 can also be the compound lenss comprising convex lens and concavees lens, and lens numbers is not limited to two.
In the present embodiment, described half-reflecting half mirror 30 is triangular blocks, states half-reflecting half mirror 30 and comprises a right-angle surface 31 and light splitting surface 32.In the present embodiment, described half-reflecting half mirror 30 is isosceles right triangle, forms miter angle between described light splitting surface 32 and described right-angle surface 31.Described light splitting surface 32 is inclined-plane, and itself and described camera lens 10 optical axis are that miter angle realizes described light L1 being divided into the described first light L2 of both direction and described second light L3.As shown in the figure.Described light L1 is projected on described light splitting surface 32 via described camera lens 20, is divided into described first light L2 and the second light L3 at described light splitting surface 32.Preferably, described first light L2 is directly incident upon described imageing sensor 40 through described right-angle surface 31 through light splitting surface.Described luminance sensor 50 is injected after described second light L3 reflects after light splitting surface 32.Described half-reflecting half mirror 30 can adopt the compound mode of 50% transmission and 50% reflection, thus realize can either transmitted ray, is capable of reflecting light again the effect of line.Be understandable that, in other embodiments, described half-reflecting half mirror 30 also can adjust the compound mode of transmission and reflection according to actual service condition.
Further, described imageing sensor 40 is color image sensor, and described imageing sensor 40 can obtain image information in described first light L2 and part luma information, and described luminance sensor 50 is in order to obtain the monochrome information of image.In the present embodiment, described imageing sensor 40 and luminance sensor 50 measure-alike.Described imageing sensor 40 and luminance sensor 50 both can be general transducers, also can be the transducers supporting PDAF function.Particularly, described imageing sensor 40 can be positioned at the below of described right-angle surface 31, and described imageing sensor 40 can be fixed on described diapire 112, and extended along the length direction of described diapire 112, that is, described imageing sensor 40 is arranged in the horizontal direction.Described imageing sensor 40 can receive the described first light L2 via the transmission of described right-angle surface 31, namely along the light that camera lens optical axis enters, and then the image information that can obtain in described first light L2 and part luma information.Preferably, described imageing sensor 40 is color image sensor, thus can be convenient to follow-up imaging.Be understandable that, in other embodiments, described imageing sensor 40 also can be PDAF (PhaseDetectionAuto-Focus phase-detection auto-focusing) transducer.
Further, described luminance sensor 50 place axis and the setting at a right angle of described imageing sensor 40 place axis, and described luminance sensor and described imageing sensor effective coverage geometric center and lens optical imaging circle center superposition.Thus ensure rapid focus effect.Concrete, described luminance sensor 50 fit described host cavity 11 perisporium 113 on namely, described luminance sensor 50 is vertically arranged.Described luminance sensor 50 receives the monochrome information through image, enough obtains the monochrome information in described second light L3 after namely accepting the described second light L3 reflected by described light splitting surface 32.
Further, described camera module 100 also comprises image processor (not identifying in figure), described imageing sensor is all electrically connected with described imageing sensor 40 and described luminance sensor 50, and described image processor carries out process and imaging in order to the monochrome information that image information, part luma information and the described luminance sensor 50 passed over by described imageing sensor 40 passes over.In the present embodiment, described image processor can be located in described housing 10.
When using described camera module 100 to take pictures, described imageing sensor 40 obtains image information, the part luma information that the first light L2 passes over, the monochrome information that acquisition second light L3 transmits is responsible for by described luminance sensor 50, both are synthesized by image processor, reach imaging effect, it is clear to obtain, bright image.Obtain image information by described imageing sensor 40 and described luminance sensor 50 obtains monochrome information, thus the inconsistent technical problem of existing focusing can be solved, and imaging effect is better.
Further, described camera module 100 also comprises filter 60, and described filter 60 is fixed in described host cavity 11, and described filter 60 is in order to the unnecessary light in the first light L2 described in filtering or described second light L3.In the present embodiment, described filter 60 can be smalt, described filter 60 is between described half-reflecting half mirror 30 and described imageing sensor 40, in order to the light that the light in the first light L2 described in filtering is longer, thus the image information that described imageing sensor 40 can be made to identify is softer, and then make described camera module 100 can shoot the softer photo of image information, and then improve the effect of taking pictures of described camera module 100.
Further, described camera module 100 also comprises flexible PCB (not identifying in figure), and described flexible PCB is electrically connected on described imageing sensor 40 and described luminance sensor 50.And preferably, described flexible PCB is electrically connected with described image processor, described flexible PCB realizes the transmission of the digital information of described imageing sensor 40 and the digital information of described luminance sensor 50, and described flexible PCB can be located in described housing 10 or be located on described terminal body, described flexible PCB is by connecting line or connector and described imageing sensor 40, luminance sensor 50 and the electrical connection of described image processor, thus realize the detachability of described camera module 100, and increase the suitability of described camera module 100, conveniently the maintenance of described camera module 100 is changed.
Camera module provided by the invention, by arranging half-reflecting half mirror below camera lens, the light via camera lens incidence is divided into the first light and the second light, then imageing sensor is set and luminance sensor is fixed in the host cavity of housing, imageing sensor can receive the first light or the second light, and luminance sensor can receive the second light or the first light.By the division of labor effect of imageing sensor and luminance sensor, thus focusing consistency can be put forward, improve image taking effect, and then improve Consumer's Experience.And only adopt single lens and focusing motor, there is not the problem of light axis consistency difference compared to prior art.
The above is the preferred embodiments of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications are also considered as protection scope of the present invention.