CN214315389U

CN214315389U - Bidirectional camera structure and mobile terminal

Info

Publication number: CN214315389U
Application number: CN202120175040.5U
Authority: CN
Inventors: 冯博涵
Original assignee: Shanghai Wingtech Information Technology Co Ltd
Current assignee: Shanghai Wingtech Information Technology Co Ltd; Shanghai Wentai Information Technology Co Ltd
Priority date: 2021-01-21
Filing date: 2021-01-21
Publication date: 2021-09-28
Anticipated expiration: 2031-01-21

Abstract

The utility model discloses a bidirectional camera structure, which comprises a shell, and a light path component, a driving mechanism and a chip which are all arranged in the shell; a first camera shooting hole and a second camera shooting hole are respectively formed in two sides of the shell; the light path component comprises a first right-angle isosceles prism and a plurality of lenses; the first right-angle isosceles prism is arranged between the first camera shooting hole and the second camera shooting hole, a rotating shaft is arranged at the center line of the total reflection surface in the thickness direction, and the driving mechanism can drive the first right-angle isosceles prism to rotate around the rotating shaft, so that one right-angle surface of the first right-angle isosceles prism is aligned with the first camera shooting hole or the second camera shooting hole, and incident light is received by the chip after being reflected by the total reflection surface of the first right-angle isosceles prism and sequentially passing through the other right-angle surface and the plurality of lenses. The utility model discloses a same module of sharing is taken photograph to the front and back, can save the space of leading camera in the design, has also reduced the cost of taking photograph in the front originally simultaneously.

Description

Bidirectional camera structure and mobile terminal

[ technical field ] A method for producing a semiconductor device

The utility model relates to an electronic equipment technical field especially relates to a two-way camera structure and mobile terminal.

[ background of the invention ]

With the continuous development of electronic technology, the demand of consumers for using mobile phones to self-shoot is increasing day by day, so that a self-shoot mobile phone is produced, and the mobile phone is characterized in that a camera with extremely strong functions is adopted as a front camera. Most of the current mobile phones with the self-photographing function as a selling point adopt an independent front-facing camera, and some manufacturers have a lot of time and labor for multiplexing the powerful main photographing on the traditional mobile phones, for example, a special structure is used for turning a rear-facing camera to the front. However, the existing technology of turning the back-view as the front-view is a mode of turning the whole camera module to the front side by using a mechanical structure, and since the rotating structure is exposed, there is a risk that dust and liquid invade and cause the rotation to be blocked. Meanwhile, due to the limitation of the turning structure and the thickness of the mobile phone, the number of lenses which can be arranged on the camera module is small, and the focusing range is small.

Accordingly, it is desirable to provide a bidirectional camera structure and a mobile terminal to overcome the above-mentioned drawbacks.

[ Utility model ] content

The utility model aims at providing a two-way camera structure and mobile terminal aims at improving present main multiplexing structure of taking a photograph because rotating-structure exposes outside, has dust, liquid to invade, leads to the problem that the card that rotates to pause, promotes the focusing scope, and the same module of sharing is taken a photograph around realizing, can save the space of leading camera in the design, has also reduced the cost of originally using in taking a photograph in the front simultaneously.

In order to achieve the above object, the present invention provides a bidirectional camera structure, which includes a housing, and a light path assembly, a driving mechanism and a chip all disposed in the housing; a first camera shooting hole and a second camera shooting hole are respectively formed in two sides of the shell; the light path component comprises a first right-angle isosceles prism and a plurality of lenses; the first right-angle isosceles prism is arranged between the first camera shooting hole and the second camera shooting hole, a rotating shaft is arranged at the center line of the total reflection surface along the thickness direction, the driving mechanism can drive the first right-angle isosceles prism to rotate around the rotating shaft, one right-angle surface of the first right-angle isosceles prism is aligned with the first camera shooting hole or the second camera shooting hole, and then incident light is received by the chip after being reflected by the total reflection surface of the first right-angle isosceles prism and sequentially passing through the other right-angle surface and the plurality of lenses.

In a preferred embodiment, the optical path assembly further comprises a second right-angle isosceles prism which is arranged at an interval on one side of the plurality of lenses far away from the first right-angle isosceles prism; the second right-angle isosceles prism is used for deflecting the incident light rays passing through the plurality of lenses by 90 degrees and then emitting the deflected incident light rays onto the chip.

In a preferred embodiment, the driving mechanism comprises a first linear motor and a second linear motor which are arranged at intervals on one side of the first right-angle isosceles prism away from the plurality of lenses; the first linear motor and the second linear motor are both provided with screw rods and are respectively connected to two sides of the rotating shaft, wherein the two sides of the rotating shaft are arranged on the total reflection surface of the first right-angle isosceles prism.

In a preferred embodiment, the lenses are arranged at intervals, and the centers of the lenses are all positioned on the same straight line; the central connecting lines of the plurality of lenses are perpendicular to the central connecting line connecting the first camera shooting hole and the second camera shooting hole.

In a preferred embodiment, the central lines of the plurality of lenses simultaneously pass through the longitudinal section midpoints of the total reflection surfaces of the first right-angle isosceles prism and the second right-angle isosceles prism.

In a preferred embodiment, a voice coil motor is further arranged in the shell; the voice coil motor is used for driving the plurality of lenses to perform focusing.

In a preferred embodiment, the chip includes a driving chip disposed on the housing and a photosensitive chip disposed on a side of the driving chip close to the optical path component; the driving chip is electrically connected with the driving mechanism and the voice coil motor.

In a preferred embodiment, the total reflection surfaces of the first right-angle isosceles prism and the second right-angle isosceles prism are both plated with optical films.

The utility model also provides a mobile terminal, mobile terminal includes as above any one of embodiment two-way camera structure.

The utility model provides a two-way camera structure is equipped with a first right angle isosceles prism between first hole of making a video recording and second hole of making a video recording, and actuating mechanism can drive first right angle isosceles prism and rotate round the pivot to make the right angle face of first right angle isosceles prism can only align first hole of making a video recording or second hole of making a video recording simultaneously, and another right angle face aligns a plurality of lenses; incident light can enter from the first camera shooting hole or the second camera shooting hole and then vertically enters a right-angle surface, then is subjected to total reflection of 90 degrees through a total reflection surface of the first right-angle isosceles prism, and then is vertically emitted from the other right-angle surface, and then is received by the chip through the plurality of lenses. At this time, the incident light entering from the second imaging hole or the first imaging hole is reflected from the outside by the total reflection surface, and does not interfere with the optical path in the first right-angle or other girdle prisms. Therefore, the setting angle of the first right angle isosceles prism can be adjusted as required, the incident light entering the first right angle isosceles prism is determined to enter the first camera shooting hole or enter the second camera shooting hole, the front camera shooting and the rear camera shooting are achieved to share the same module, the space of a front camera can be omitted in design, and meanwhile the cost of the front camera shooting is reduced. In addition, the first right-angle isosceles prism deflects the incident light rays by 90 degrees, so that the plurality of lenses can be arranged along the central axis of the shell, the limitation of the thickness of the shell is avoided, and the zoom times are greatly increased.

[ description of the drawings ]

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

Fig. 1 is a longitudinal section of the bidirectional camera structure provided by the present invention in a forward shooting mode;

fig. 2 is a longitudinal sectional view of the bi-directional camera structure shown in fig. 1 in a back-up mode.

Reference numbers in the figures: 100. a bi-directional camera structure; 10. a housing; 11. an accommodating cavity; 12. a first camera hole; 13. a second camera hole; 14. a rotating shaft; 20. an optical path component; 21. a first right-angle isosceles prism; 22. a lens; 23. a second right-angle isosceles prism; 30. a drive mechanism; 31. a first linear motor; 32. a second linear motor; 33. a screw rod; 40. a chip; 41. a driving chip; 42. and a photosensitive chip.

[ detailed description ] embodiments

In order to make the objects, technical solutions and advantageous technical effects of the present invention more clearly understood, the present invention is further described in detail with reference to the accompanying drawings and the following detailed description. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration only and not by way of limitation.

It is also to be understood that the terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the specification and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

It should be further understood that the term "and/or" as used in the specification and the appended claims refers to any and all possible combinations of one or more of the associated listed items, and includes such combinations.

The embodiment of the utility model provides an in, provide a two-way camera structure 100 for establish on mobile terminal, can use same camera module group to take a photograph with the backshooting, save the space of leading camera. The mobile terminal includes, but is not limited to, a mobile phone, a tablet computer, and other portable devices with a shooting function.

As shown in fig. 1 and fig. 2, the bidirectional camera structure 100 includes a housing 10, and an optical path component 20, a driving mechanism 30 and a chip 40 all disposed in the housing 10.

Specifically, the housing 10 is hollow, and has an accommodating cavity 11 for accommodating the optical path component 20, the driving mechanism 30, and the chip 40 therein, and a first camera hole 12 and a second camera hole 13 both communicating with the accommodating cavity 11 are respectively formed at both sides thereof. The first camera hole 12 and the second camera hole 13 can be a front camera hole and a rear camera hole, respectively, so as to be used for correspondingly arranging a front camera lens (not shown in the figure) and a rear camera lens (not shown in the figure). In this embodiment, the first camera hole 12 and the second camera hole 13 are both circular holes, and a connection line between centers of the two camera holes is disposed along the thickness direction of the housing 10, i.e., perpendicular to the central axis of the housing 10 along the length direction.

The optical path assembly 20 includes a first right-angled isosceles prism 21 and a plurality of lenses 22. The first right-angle isosceles prism 21 is a triangular prism, and includes a pair of perpendicular surfaces perpendicular to each other and an inclined surface connecting the pair of perpendicular surfaces, the inclined surface is a total reflection surface, and the plane angle between the right-angle surface and the inclined surface is 45 °. When an incident ray vertically enters a right-angled surface, the normal included angle with the inclined surface is 45 degrees, due to the total reflection principle (also called total internal reflection, when the ray enters a medium (such as air) with a lower refractive index from a medium (such as a prism) with a higher refractive index, if the incident angle is larger than a certain critical angle thetac (the ray is far away from the normal), the refracted ray will disappear, all the incident rays will be reflected and not enter the medium with the lower refractive index), the normal included angle between the emergent ray and the total reflection surface is 45 degrees, namely the emergent ray is perpendicular to the incident ray, so that the emergent ray is emitted from the other right-angled surface.

The first right-angle isosceles prism 21 is disposed between the first camera hole 12 and the second camera hole 13, and a rotating shaft 14 is disposed at a central line of the total reflection surface along the thickness direction. That is, as shown in fig. 1 and 2, the rotation axis 14 is located at the midpoint of the hypotenuse of the first right-angled isosceles prism 21 when viewed in longitudinal section. That is, the rotation axis 14 passes through the center line of the first camera hole 12 and the second camera hole 13. Therefore, the first right-angle isosceles prism 21 can be rotated about the rotation shaft 14, changing the placement angle. Three surfaces of the first right-angle isosceles prism 21, which enclose a triangle, are defined as a first right-angle surface, a second right-angle surface and an inclined surface (i.e., a total reflection surface). When the first right-angle surface is aligned with the first camera hole 12, the second right-angle surface is aligned with the plurality of lenses 22, at the moment, incident light sequentially passes through the first camera hole 12, the first right-angle surface, the inclined surface, the second right-angle surface and the plurality of lenses 22 and finally reaches the chip 40, and at the moment, light entering from the second camera hole 13 does not enter the plurality of lenses 22 after being refracted and reflected. When the second right-angle surface aligns with the second camera hole 13, the first right-angle surface aligns with the plurality of lenses 22, and at this time, incident light sequentially passes through the second camera hole 13, the second right-angle surface, the inclined surface, the first right-angle surface and the plurality of lenses 22 and finally reaches the chip 40, and at this time, light entering from the first camera hole 12 does not enter the plurality of lenses 22 after being refracted and reflected. It can be understood that by changing the placement angle of the first right-angle isosceles prism 21, the first right-angle isosceles prism 21 can select which of the light rays entering the first camera hole 12 and the second camera hole 13 can be reflected into the plurality of lenses 22.

Wherein, the driving mechanism 30 can drive the first right-angle isosceles prism 21 to rotate around the rotating shaft 14, thereby changing the placing angle of the first right-angle isosceles prism 21. Specifically, the driving mechanism 30 includes a first linear motor 31 and a second linear motor 32 both disposed at an interval on a side of the first right-angle isosceles prism 21 away from the plurality of lenses 22. The first linear motor 31 and the second linear motor 32 are both provided with a screw 33 and are respectively connected to two sides of the first right-angle isosceles prism 21, where the total reflection surface is provided with the rotating shaft 14. That is, as shown in fig. 1 and 2, when the longitudinal section is viewed, the screw rods 33 connected to the first linear motor 31 and the second linear motor 32 are located at both sides of the center point of the oblique side of the first right-angle isosceles prism 21, and are symmetrically disposed. The first linear motor 31 and the second linear motor 32 can adjust the length of the corresponding screw rod 33, respectively, so that the first right-angle isosceles prism 21 rotates about the rotating shaft 14.

In summary, by controlling the first linear motor 31 and the second linear motor 32, one of the right-angle surfaces of the first right-angle isosceles prism 21 is aligned with the first camera hole 12 or the second camera hole 13, so that the incident light is reflected by the total reflection surface of the first right-angle isosceles prism 21 and then sequentially passes through the other right-angle surface and the plurality of lenses 22 to be received by the chip 40, thereby realizing front-back camera shooting sharing of the same module, and in the conventional design, the space of a front camera can be omitted, and the cost of the front camera shooting is reduced.

Further, in an embodiment, as shown in fig. 1 and fig. 2, the optical path assembly 20 further includes a second right-angle isosceles prism 23 fixedly disposed on a side of the plurality of lenses 22 away from the first right-angle isosceles prism 21 at an interval, and configured to deflect the incident light passing through the plurality of lenses 22 by 90 degrees and enter the chip 40. Wherein, first right angle isosceles prism 21 forms periscopic structure with second right angle isosceles prism 23 jointly for the incident ray that gets into first right angle isosceles prism 21 and second right angle isosceles prism 23 is perpendicular with emergent ray, and then makes a plurality of lenses 22 arrange the setting along the axis of casing 10 in the lens cone, greatly increased the multiple that can zoom, promoted space utilization. Furthermore, the total reflection surfaces of the first right-angle isosceles prism 21 and the second right-angle isosceles prism 23 are both plated with optical films (not shown in the figure), so that the total reflection efficiency is improved, the light interference caused by the refraction and reflection of an external light path is further avoided, and the imaging quality is improved.

Further, the plurality of lenses 22 are disposed at intervals, and include concave lenses, convex lenses, and the like, and the centers of the lenses are all located on the same straight line, so as to zoom incident light. The central connecting lines of the lenses 22 are perpendicular to the central connecting line connecting the first camera shooting hole 12 and the second camera shooting hole 13, and the central connecting lines of the lenses 22 simultaneously pass through the middle points of the longitudinal sections of the total reflection surfaces of the first right-angle isosceles prism 21 and the second right-angle isosceles prism 22, so that light entering from the first camera shooting hole 12 and the second camera shooting hole 13 is received by the chip 40 to the maximum extent, and the shooting imaging precision is improved. Further, a voice coil motor (not shown) is disposed in the housing 10, and the voice coil motor is used for driving the plurality of lenses 22 to focus. It should be noted that, the focusing setting manner of the plurality of lenses 22 may refer to the prior art, and the present invention is not limited herein.

Further, in one embodiment, the chip 40 includes a driving chip 41 disposed on the housing 10 and a photosensitive chip 42 disposed on a side of the driving chip 41 close to the optical path component 20. The driving chip 41 is electrically connected to the driving mechanism 30 and the voice coil motor, and is used for controlling the operation of the driving mechanism 30 and the voice coil motor.

The utility model also provides a mobile terminal (not shown in the figure), mobile terminal includes as in any one of above-mentioned embodiment two-way camera structure 100.

To sum up, the utility model provides a two-way camera structure 100 is equipped with a first right angle isosceles prism 21 between first camera hole 12 and second camera hole 13, and actuating mechanism 30 can drive first right angle isosceles prism 21 and rotate around pivot 14 to make the right angle face of first right angle isosceles prism 21 can only align first camera hole 12 or second camera hole 13 simultaneously, and another right angle face then aligns a plurality of lenses 22; incident light can enter from the first camera hole 12 or the second camera hole 13 and then vertically enter a right-angle surface, then is totally reflected by 90 degrees through a total reflection surface of the first right-angle isosceles prism 21, and then is vertically emitted from the other right-angle surface, and further is received by the chip 40 through the plurality of lenses 22. At this time, the incident light entering from the second imaging hole 13 or the first imaging hole 12 is reflected from the outside by the total reflection surface, and does not interfere with the optical path in the first right-angle isosceles prism 21. Therefore, the setting angle of the first right-angle isosceles prism 21 can be adjusted as required, so that the incident light entering the first right-angle isosceles prism 21 is determined to enter the first camera shooting hole 12 or enter the second camera shooting hole 13, the front camera and the rear camera can share the same module, the space of the front camera can be saved in design, and the cost of the front camera is reduced. In addition, because the first right-angle isosceles prism 21 deflects the incident light rays by 90 degrees, the plurality of lenses 22 can be arranged along the central axis of the shell 10, so that the limitation of the thickness of the shell 10 is avoided, and the zoom multiple is greatly increased.

The invention is not limited solely to that described in the specification and the embodiments, and additional advantages and modifications will readily occur to those skilled in the art, and it is not intended to be limited to the specific details, representative apparatus, and illustrative examples shown and described herein, without departing from the spirit and scope of the general concept as defined by the appended claims and their equivalents.

Claims

1. A bidirectional camera structure is characterized by comprising a shell, and a light path component, a driving mechanism and a chip which are all arranged in the shell; a first camera shooting hole and a second camera shooting hole are respectively formed in two sides of the shell; the light path component comprises a first right-angle isosceles prism and a plurality of lenses; the first right-angle isosceles prism is arranged between the first camera shooting hole and the second camera shooting hole, a rotating shaft is arranged at the center line of the total reflection surface along the thickness direction, the driving mechanism can drive the first right-angle isosceles prism to rotate around the rotating shaft, one right-angle surface of the first right-angle isosceles prism is aligned with the first camera shooting hole or the second camera shooting hole, and then incident light is received by the chip after being reflected by the total reflection surface of the first right-angle isosceles prism and sequentially passing through the other right-angle surface and the plurality of lenses.

2. The bidirectional camera structure of claim 1, wherein the optical path assembly further comprises a second right-angle isosceles prism spaced apart from the plurality of lenses on a side thereof remote from the first right-angle isosceles prism; the second right-angle isosceles prism is used for deflecting the incident light rays passing through the plurality of lenses by 90 degrees and then emitting the deflected incident light rays onto the chip.

3. The bidirectional camera structure of claim 1, wherein the driving mechanism includes a first linear motor and a second linear motor both disposed at an interval on a side of the first right-angle isosceles prism away from the plurality of lenses; the first linear motor and the second linear motor are both provided with screw rods and are respectively connected to two sides of the rotating shaft, wherein the two sides of the rotating shaft are arranged on the total reflection surface of the first right-angle isosceles prism.

4. The bidirectional camera structure of claim 2, wherein the plurality of lenses are spaced apart and have lens centers all located on a same line; the central connecting lines of the plurality of lenses are perpendicular to the central connecting line connecting the first camera shooting hole and the second camera shooting hole.

5. The bidirectional camera structure of claim 4, wherein the central connecting lines of the plurality of lenses simultaneously pass through the longitudinal section midpoints of the total reflection surfaces of the first right-angle isosceles prism and the second right-angle isosceles prism.

6. The bi-directional camera structure of claim 1, wherein a voice coil motor is further disposed within said housing; the voice coil motor is used for driving the plurality of lenses to perform focusing.

7. The bidirectional camera structure of claim 6, wherein the chip includes a driving chip disposed on the housing and a photosensitive chip disposed on a side of the driving chip close to the optical path component; the driving chip is electrically connected with the driving mechanism and the voice coil motor.

8. The bidirectional camera structure of claim 2, wherein the total reflection surfaces of the first right-angle isosceles prism and the second right-angle isosceles prism are both coated with optical films.

9. A mobile terminal, characterized in that it comprises a bi-directional camera structure according to any of claims 1-8.