CN211860298U

CN211860298U - Camera module and electronic equipment

Info

Publication number: CN211860298U
Application number: CN202020823967.0U
Authority: CN
Inventors: 张福印; 黄凯; 卢连朋
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2020-05-15
Filing date: 2020-05-15
Publication date: 2020-11-03
Anticipated expiration: 2030-05-15

Abstract

The embodiment of the utility model discloses camera module and electronic equipment. This camera module includes: the lighting device comprises a shell, a lighting device and a lighting device, wherein the shell is provided with an inner cavity and a lighting hole communicated with the inner cavity; a first reflector element disposed within the interior cavity and opposite the daylight opening; a second reflective element disposed within the cavity, the first reflective element and the second reflective element being disposed opposite one another; the photosensitive chip is arranged in the inner cavity and is opposite to the second light reflecting element; a lens assembly located between the first and second reflective elements. The camera module can improve the zooming capability of the camera module while reducing the size of the camera module as much as possible.

Description

Camera module and electronic equipment

Technical Field

The embodiment of the utility model provides a relate to camera device technical field, especially relate to a camera module and electronic equipment.

Background

At present, full touch display screen is loved by people deeply, how can accomplish full touch-sensitive screen, and this has also proposed higher requirement to the setting of the cell-phone camera that just can see outside the touch-sensitive screen, requires that the cell-phone camera is accomplished more well more promptly. However, the conventional camera includes a housing, a lens, a Voice Coil Motor (VCM), a filter, a photo sensor chip, and a Printed Circuit Board (PCB). The lens, the optical filter, the photosensitive chip and the PCB are arranged in the shell in a stacked mode. In order to reduce the size of the camera as much as possible, the focusing size of the camera can be sacrificed, so that the zooming capability of the camera is poor.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a new technical scheme of camera module is in order to solve, and the technical problem of its solution improves its zoom capability when reducing camera module size as far as possible.

In order to solve the technical problem, the utility model discloses a realize like this:

a camera module, comprising:

the lighting device comprises a shell, a lighting device and a lighting device, wherein the shell is provided with an inner cavity and a lighting hole communicated with the inner cavity;

a first reflector element disposed within the interior cavity and opposite the daylight opening;

a second reflective element disposed within the cavity, the first reflective element and the second reflective element being disposed opposite one another;

the photosensitive chip is arranged in the inner cavity and is opposite to the second light reflecting element;

a lens assembly located between the first and second reflective elements.

In a second aspect, the embodiment of the present invention further provides an electronic device. This electronic equipment includes the equipment shell and the utility model provides a camera module be provided with logical unthreaded hole on the equipment shell, lead to the unthreaded hole with the daylighting hole is relative.

In the embodiment of the utility model, the camera lens subassembly of camera module does not expose. When the light-reflecting lens is used, external light enters the first light-reflecting element from the lighting hole, is reflected by the first light-reflecting element, reaches the lens assembly, is focused by the lens assembly, then reaches the second light-reflecting element, and then reaches the photosensitive chip after being reflected by the second light-reflecting element.

Since the second light reflecting member is disposed behind the lens assembly, the incident direction of the light can be changed again. Due to the change of the incidence direction of the second reflecting element to the light, the camera assembly and the photosensitive chip do not need to be arranged in a stacking mode. Therefore, the thickness of the camera module can be smaller, and the development trend of lightness and thinness of electronic equipment is complied with.

In addition, the space between first light reflecting element and the second light reflecting element provides the space for zooming of the lens assembly, so that the zooming capacity of the camera module is improved, and the camera shooting effect is obviously improved.

Drawings

Fig. 1 is a cross-sectional view of a camera module according to an embodiment of the present invention.

Fig. 2 is an exploded view of a camera module according to an embodiment of the present invention.

Fig. 3 is a perspective view of an aperture adjusting apparatus according to an embodiment of the present invention.

Fig. 4 is a cross-sectional view of another camera module according to an embodiment of the present invention.

Description of reference numerals:

11: a first housing; 12: a second housing; 13: lighting holes; 14: a first light reflecting element; 15: a second light reflecting element; 16: a lens assembly; 17: a photosensitive chip; 18: a first light shielding member; 18 a: a light shielding portion of the first light shielding member; 18 b: a connecting portion of the first light shielding member; 19: a second light shielding member; 19 a: a light shielding portion of the second light shielding member; 19 b: a connecting portion of the second light shielding member; 20: a light inlet hole; 21: a thinning region; 23: a second coil; 24: a third coil; 26: notching: 27: an open end; 28: a groove; 29: and (3) a step structure.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, of the embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

According to the utility model discloses an embodiment provides a camera module. As shown in fig. 1 to 3, the camera module includes: the lens module comprises a shell, a first reflecting element 14, a second reflecting element 15, a photosensitive chip 17 and a lens assembly 16.

The housing has an interior cavity and a daylight opening 13 communicating with the interior cavity. The first reflective element 14, the second reflective element 15, the photosensitive chip 17, and the lens assembly 16 are disposed in the cavity. The first light reflecting member 14 is opposite to the lighting hole 13. The first retroreflective member 14 and the second retroreflective member 15 are oppositely disposed. The photosensitive chip 17 is opposite to the second light reflecting member 15. The lens assembly 16 is positioned between the first reflective element 14 and the second reflective element 15.

Optionally, the photosensitive chip 17 may also be located on the opposite side of the lighting hole 13, as shown in fig. 1; of course, it may also be located on the lens assembly 16. Because it is necessary to avoid the overlapping between the photosensitive chip 17 and the lens assembly 16, only the photosensitive chip 17 can be made small, and there may be a problem of light interference between the lens assembly 16 and the photosensitive chip 17, in some embodiments, the photosensitive chip 17 is disposed on a side of the housing close to the lighting hole 13 or a side opposite to the lighting hole 13, as shown in fig. 4, so that the problem of light interference can be avoided while the structural size of the camera module is reduced.

In the embodiment of the present invention, the lens assembly 16 of the camera module is not exposed. When the lighting device is used, external light enters the first reflecting element 14 from the lighting hole 13, is reflected by the first reflecting element 14, reaches the lens assembly 16, is focused by the lens assembly 16, reaches the second reflecting element 15, and reaches the photosensitive chip 17 after being reflected by the second reflecting element 15.

Since the second light reflecting member 15 is disposed behind the lens assembly 16, the incident direction of the light can be changed again. Due to the change of the incident direction of the light by the second light reflecting element 15, the camera assembly 16 and the photosensitive chip 17 do not need to be stacked. Therefore, the thickness of the camera module can be smaller, and the development trend of lightness and thinness of electronic equipment is complied with.

In addition, the space between the first reflective element 15 and the second reflective element 16 provides a space for zooming the lens assembly 16, so that the zooming capability of the camera module is improved, and the camera shooting effect is obviously improved.

In one embodiment, as shown in fig. 1-2, the housing is a rectangular parallelepiped in its entirety. Of course, the housing may be a cylindrical structure or other shape. The shell is of a closed structure or a frame structure. When the housing has a closed structure, external light is incident into the housing from the daylight opening 13. When the shell is of a frame structure, one side face of the shell is hollow, and the frame of the side face encloses a lighting hole 13. The first reflective element 14 and the second reflective element 15 are made of glass, metal or plastic. Two retroreflective elements are secured within the interior cavity. The first reflective element 14 and the second reflective element 15 are disposed opposite to each other, that is, the reflective surfaces of the two reflective elements are parallel, complementary, or have other angles in the housing, as long as they can form a light path and reflect light onto the photosensitive chip 17. The photosensitive chip 17 is placed in parallel to or inclined with respect to the lighting hole 13 side of the housing. When parallel, the space of the photosensitive chip 17 in the thickness direction of the housing is the smallest, and the camera module can be made thinner.

In one embodiment, the camera module further comprises an aperture adjusting device. The aperture adjusting device is used for adjusting the illuminance of light entering the lens assembly 16, wherein the light is reflected by the first reflective element 14. Illuminance is the amount of light flux received per unit area of the surface being illuminated. The larger the aperture, the larger the illuminance, and the smaller the aperture, the smaller the illuminance. The size of the aperture is adjusted according to different shooting scenes, so that a good shooting effect is achieved.

In addition, the larger the aperture, the larger the amount of light entering, and the shallower the depth of field of the camera module. The smaller the aperture, the larger the light-entering amount, and the deeper the depth of field of the camera module. The aperture adjusting device can effectively adjust the depth of field of the camera module, so that the camera module can meet the shooting requirements of different scenes.

For example, an aperture adjustment device is disposed between the first reflective element 14 and the lens assembly 16. As shown in fig. 1-2, the aperture adjustment device is fixed within the housing.

In one embodiment, the aperture adjustment device comprises a shading element. The light shielding element forms a light inlet hole 20, and the illumination intensity is adjusted by adjusting the size of the light inlet hole 20. For example, a plurality of light shielding elements may jointly form a light inlet, and the size of the light inlet 20 is adjusted by the movement of the plurality of light shielding elements; alternatively, the light inlet hole may be formed by a light shielding member, and the size of the light inlet hole 20 may be adjusted by moving different portions of the light shielding member.

As shown in fig. 1 to 3, the aperture adjustment device includes a first shade element 18 and a second shade element 19, and the first shade element 18 and the second shade element 19 are slidably disposed within a housing. When the aperture is adjusted, the first light shielding element 18 and the second light shielding element 19 are partially overlapped, and the first light shielding element 18 and the second light shielding element 19 together enclose a light inlet hole 20. The size of the light inlet aperture 20 is adjusted by moving the two light blocking elements either manually or by power means.

For example, the first light shielding member 18 and the second light shielding member 19 are made of metal, plastic, rubber, or the like. The two

shading elements

18,19 are of sheet-like or other construction.

Of course, the number of the light shielding elements is not limited to this, and may be more, and those skilled in the art may set the number according to actual needs.

As shown in fig. 2 to 3, the first light shielding element 18 and the second light shielding element 19 include

light shielding portions

18a,19a and connecting

portions

18b,19b, the

light shielding portions

18a,19a are sheet-shaped structures, a notch 26 is formed at a free end of the

light shielding portions

18a,19a, the two notches 26 surround the light inlet hole 20, the connecting

portions

18b,19b are connected with the

light shielding portions

18a,19a, and the connecting

portions

18b,19b are connected with the moving device. For example, the

light shielding portions

18a,19a are disposed perpendicular to the connecting

portions

18b,19 b. This way the length of the first and

second shading elements

18,19 is made smaller. The free end of the shading part is the end opposite to the connecting part.

The shape of the notch 26 is semi-circular, rectangular, triangular or other shape. Preferably, the two notches 26 are symmetrically arranged, and the arrangement of the notches 26 enables the aperture to have a set shape, so that the adjustment of the aperture is more accurate.

Of course, in other examples, the slit between the two light shielding portions forms the light entrance hole 20. In this way, by adjusting the distance between the two

light blocking portions

18a,19a, the size of the aperture can be adjusted as well.

In one embodiment, as shown in fig. 2, the camera module further comprises a moving device. The moving device comprises a first coil and a second coil 23, and under the condition that the number of the shading elements is at least two, the first coil and the second coil 23 are respectively arranged on different shading elements, and the shading elements are driven to move through the interaction of the first coil and the second coil 23.

For example, the first coil is provided on the first light shielding member 18, and the second coil 23 is provided on the second light shielding member 19. A magnetic force is formed between the first coil and the second coil 23, and the distance between the first light shielding member 18 and the second light shielding member 19 is adjusted by the magnetic force.

Of course, the moving means may be, but is not limited to, a linear drive, a swing drive, and the like. The coil has small volume, easy electric connection and easy control.

In other embodiments, the first coil is disposed on the connection portion 18a of the first shade element 18. The second coil 23 is disposed on the lens assembly 16, and a magnetic force is formed between the first coil and the second coil 23. The coil can form a magnetic field after being electrified, according to left-hand rule, one side pointed by the thumb is an N pole, and the side opposite to the N pole is an S pole. The movement of the first light shielding element 18 is realized by controlling the magnitude and direction of the currents of the first coil and the second coil 23, thereby adjusting the size of the light inlet hole 20. The moving device is simple in structure and high in adjusting precision.

Further, the number of the moving devices is two. Two moving devices are used to drive the first shutter element 18 and the second shutter element 19 to move, respectively. By controlling the four coils simultaneously, a relative movement of the first shading element 18 and the second shading element 19 is achieved for adjusting the aperture. The setting mode enables the aperture to be adjusted more accurately and more uniformly.

In one example, as shown in fig. 3, the two light shielding portions are formed with a thinned region 21 on the side opposite to each other, and the notches 26 are formed in the two thinned regions 21, respectively. The thinned region 21 is a region of the light shielding portion having a small thickness. By providing the thinned region 21, the weight of the first and second

light shielding members

18 and 19 can be effectively reduced, and the center of gravity of the first and second light shielding members 19 can be brought closer to the connecting portion, so that the adjustment of the aperture can be made more labor-saving and with higher accuracy.

In addition, the thinned region 21 can reduce the thickness of the first and second

light shielding members

18, 19.

Further, a step structure 29 is formed at the root of the thinned region 21. The step structure 29 can limit the shading element relative to the step structure, so that the diaphragm is prevented from being adjusted too small.

Of course, the aperture adjusting device is not limited to the above-mentioned embodiments, and can be set by those skilled in the art according to actual needs. For example, a plurality of vane-type aperture adjusting devices are used.

In one embodiment, the reflective surface of the first reflective element 14 is at a first angle to the plane of the lighting aperture 13. The first reflective element 14 and the second reflective element 15 are located on the same side of the housing, and a reflective surface of the first reflective element 14 and a reflective surface of the second reflective element 15 form a second included angle; and/or the first reflective element 14 and the second reflective element 15 are respectively located on different sides of the housing, and the reflective surface 14 of the first reflective element is parallel to the reflective surface of the second reflective element 15.

It should be noted that the size of the first included angle and the second included angle can be selected according to actual needs, as long as a set light path can be formed, so that light can be projected onto the photosensitive chip 17. The parallelism can be absolute parallelism of two reflecting surfaces; or approximately parallel, and the two form a certain included angle, as long as a set light path can be formed, so that the light can be projected onto the photosensitive chip 17.

As shown in fig. 1-2, the first reflector 14 and the second reflector 15 may be right triangular prisms, the inclined surfaces of the right triangular prisms may be light reflecting surfaces, and the first reflector 14 and the second reflector 15 may be respectively located at two opposite ends of the inner cavity and on two opposite sides of the housing.

In this example, the reflective surface of the first retroreflective element 14 is at a 45 angle to the right angle surface, i.e., the first angle is 45 and the reflective surfaces are parallel. The right-angle surface of the right-angle triangular prism is a mounting surface. The first and second

retroreflective elements

14 and 15 are mounted at opposite corners of the interior cavity by two right-angled surfaces, respectively. The first and second

retroreflective elements

14 and 15, respectively, are adhered to adjacent walls of the housing, such as by adhesive or double-sided tape. The right-angle surface can also play the roles of positioning and aligning. The mounting accuracy of such a reflecting element is high.

Of course, the included angle between the reflecting surface and the right-angle surface can be other angles. The first 14 and second 15 reflective elements may also be flat mirrors. The skilled person can select the desired one according to the actual need.

Alternatively, as shown in fig. 4, two right triangular prisms may be located on the same side of the housing. The angle between the reflective surface of the first reflective element 1 and the right-angled surface is 45 °, i.e. the first angle is 45 °, and the reflective surface of the first reflective element 14 and the reflective surface of the second reflective element 15 form a second angle, e.g. 90 °. The photosensitive chip is opposite to the second light reflecting member 15 and is located on the side of the housing near the lighting hole 13.

Of course, the first light reflecting member 14 and the second light reflecting member 15 may be flat mirrors. As long as a set light path can be formed so that the light is sensed by the photo sensor chip.

In one embodiment, the camera module further comprises a focusing device. The focusing apparatus is electrically connected to the lens assembly 16. The two can cooperate with each other. The focusing mechanism is configured to adjust a first distance between the lens assembly 16 and the first retroreflective element 14. The larger the first distance, the smaller the illuminance, the smaller the first distance, the larger the illuminance, and the focusing device enables the camera module to adapt to more application scenes.

In one embodiment, as shown in FIG. 2, the focusing apparatus includes a third coil 24 and a fourth coil, one of the third coil 24 and the fourth coil being disposed on the lens assembly 16 and the other being disposed on the housing. The lens assembly 16 is driven to move by the interaction of the third coil 24 with the fourth coil.

For example, lens assembly 16 may be slidably disposed within the internal cavity. The third coil 24 and the fourth coil can form a magnetic field after being energized, and according to left-hand rule, the side pointed by the thumb is the N pole, and the side opposite to the N pole is the S pole. Movement of the lens assembly 16 is achieved by controlling the magnitude and direction of the currents in the third coil 24 and the fourth coil, thereby effecting focus adjustment. The adjusting mode has simple structure and high adjusting precision.

Of course, the moving means and the focusing means are not limited to coils, and can be set by those skilled in the art according to actual needs. For example, the adjustment of the aperture and the focal length can also be realized by adopting a mode of matching a coil and a permanent magnet.

In one embodiment, as shown in fig. 1-2, the housing includes a first housing 11 and a second housing 12. A telescopic device is provided between the first housing 11 and the second housing 12. The telescopic device is used for adjusting a second distance between the first housing 11 and the second housing 12.

For example, the first housing 11 and the second housing 12 are each a rectangular parallelepiped structure with one open end, and the first housing 11 and the second housing 12 are fastened together with the open ends 27 facing each other. An inner cavity is formed inside the first housing 11 and the second housing 12. The first housing 11 is provided with a light inlet 20. When mounting, first, the first light reflecting member 14, the second light reflecting member 15, the lens block 16, the focusing means, the aperture adjusting means, and the like are fixed within the second housing 12. Then, the first housing 11 is snap-fitted to the outside of the second housing 12. This structure makes the assembly of the camera module easier. In addition, the sealing effect of the shell is good. The telescopic device is used for adjusting the second distance between the first shell 11 and the second shell 12 in the vertical direction, so as to adjust the distance between the light inlet hole and the first reflecting element 14, and the light inlet quantity can be adjusted in this way, so as to meet the shooting requirements of different scenes.

In other examples, the first housing 11 and the second housing 12 are relatively movable in the horizontal direction. The telescopic device is capable of adjusting a second distance of the first housing 11 and the second housing 12 in the horizontal direction. In this way, the maximum distance between the first reflective element 14 and the lens assembly 16 can be adjusted, which enables the zoom range of the camera module to be larger, and the camera module can adapt to more use scenes.

In one embodiment, the housing is provided with a groove 28, and the photosensitive chip 17 is embedded in the groove 28. For example, as shown in fig. 1-2, a groove 28 is formed on the second housing 12, and the photo sensor chip 17 is fixed in the groove 28 by an adhesive or a double-sided tape. The setting of recess 28 makes the location of sensitization chip 17 more accurate to sensitization chip 17 can not form the light interference, and the daylighting effect of camera module is better.

In other embodiments, a recess 28 is formed in the first housing 11. The photosensitive chip 17 is embedded in the groove 28.

According to another embodiment of the present invention, an electronic device is provided. The electronic equipment comprises the camera module. The electronic device may be, but is not limited to, a cell phone, a tablet computer, a learning machine, a smart watch, a laptop computer, a game console, and the like. The electronic equipment has the characteristics of lightness and thinness.

In one embodiment, the electronic device further comprises a device housing, and the light through hole is formed in the device housing. The light-passing hole is opposite to the lighting hole 13. The equipment shell comprises a first surface perpendicular to the thickness direction, the camera module is located in the equipment shell, and the photosensitive chip 17 is parallel to the first surface. The first surface is provided with a light through hole. For example, the first surface is a screen of the electronic device or a surface on which a rear cover is located. In this example, since the photosensitive chip 17 is parallel to the first surface, increasing the size of the photosensitive chip 17 does not increase the thickness of the device housing, so that the electronic device can be thinned while achieving the imaging effect of the camera module.

It should be noted that, in the foregoing embodiments, the difference between the embodiments is mainly described, and different optimization features between the embodiments may be combined to form a better embodiment as long as the difference is not contradictory, and further description is omitted here in view of brevity of the text.

The embodiments of the present invention have been described with reference to the accompanying drawings, but the present invention is not limited to the above-mentioned embodiments, which are only illustrative and not restrictive, and those skilled in the art can make many forms without departing from the spirit and scope of the present invention.

Claims

1. The utility model provides a camera module which characterized in that includes:

a lens assembly located between the first and second reflective elements.

2. The camera module of claim 1, further comprising an aperture adjustment device disposed between the lens assembly and the first reflective element, the aperture adjustment device being configured to adjust an illumination level of light entering the lens assembly, the light being reflected from the first reflective element.

3. The camera module according to claim 2, wherein the aperture adjustment device comprises a light blocking element, the light blocking element forms a light inlet, and the illumination intensity is adjustable by adjusting the size of the light inlet.

4. The camera module according to claim 3, further comprising a moving device, wherein the moving device comprises a first coil and a second coil, and in the case that the number of the shading elements is at least two, the first coil and the second coil are respectively disposed on different shading elements, and the shading elements are driven to move by interaction of the first coil and the second coil.

5. The camera module according to claim 1, wherein a first angle is formed between the light reflecting surface of the first light reflecting element and the plane of the lighting hole, the first light reflecting element and the second light reflecting element are located on the same side of the housing, and a second angle is formed between the light reflecting surface of the first light reflecting element and the light reflecting surface of the second light reflecting element; and/or

The first reflecting element and the second reflecting element are respectively positioned on different sides of the shell, and the reflecting surface of the first reflecting element is parallel to the reflecting surface of the second reflecting element.

6. The camera module of claim 1, further comprising a focusing mechanism electrically coupled to the lens assembly, the focusing mechanism configured to adjust a first distance between the lens assembly and the first reflective element.

7. The camera module of claim 6, wherein the focusing mechanism comprises a third coil and a fourth coil, one of the third coil and the fourth coil being disposed on the lens assembly and the other being disposed on the housing, the lens assembly being driven to move by interaction of the third coil and the fourth coil.

8. The camera module of claim 1, wherein the housing comprises a first housing and a second housing, and a telescopic device is disposed between the first housing and the second housing for adjusting a second distance between the first housing and the second housing.

9. The camera module according to claim 1, wherein a groove is formed in the housing, and the photosensitive chip is embedded in the groove.

10. An electronic device, comprising a device housing and the camera module according to any one of claims 1 to 9, wherein a light-passing hole is provided on the device housing, and the light-passing hole is opposite to the lighting hole.