Mobile phone ranging module

Abstract

The utility model discloses a mobile phone distance measuring module, which comprises a shell, a telescopic optical system and a laser distance measuring system, the telescopic optical system and the laser distance measuring system are arranged in the shell, the telescopic optical system comprises an objective lens group, a reflector, a prism group, an eyepiece group and a rectangular prism which are sequentially arranged along an optical axis from a scenery side to an image plane side, and the optical axis is divided into three sections, the two optical axes are respectively an incident optical axis L1, a vertical optical axis L2 and an emergent optical axis L3, the incident optical axis L1 and the emergent optical axis L3 are vertically parallel and are positioned on the front side and the rear side of the vertical optical axis L2, the objective lens group and the reflecting mirror are distributed at intervals along the incident optical axis L1, the reflecting mirror, the prism group, the eyepiece group and the rectangular prism vertical optical axis L2 are distributed at intervals from top to bottom, and the rectangular prism and the image plane are positioned on the emergent optical axis L3. An external scene is imaged at an image plane position through the objective lens group, the reflector, the prism group, the eyepiece group and the right-angle prism; the system well realizes the functions of telescoping and distance measurement, and is high in image definition of telescoping and high in distance measurement precision.

Description

Technical Field

[0001] This utility model relates to a mobile phone ranging module. Background Technology

[0002] Current mobile phones generally do not have range-measuring functions, but in some special cases, it is indeed necessary to measure the distance of objects. Therefore, mobile phones with range-measuring functions have appeared on the market, as seen in the utility model patent with patent number CN201020639150 entitled "Laser Range Measuring Mobile Phone". However, due to the size limitations of mobile phones, adding laser emitting and receiving parts to the mobile phone undoubtedly creates difficulties in the spatial layout of the mobile phone. In addition, the optical design of existing mobile phone cameras cannot be fully utilized due to the size limitations of mobile phones, which affects the telescopic and range-measuring effects, such as poor image clarity and low range-measuring accuracy. Summary of the Invention

[0003] The purpose of this invention is to provide a mobile phone ranging module that eliminates the need for internal laser emission and reception components in the phone. This external ranging module effectively solves the technical problems of poor telescope and ranging performance in existing laser ranging phones.

[0004] The technical solution of this utility model is implemented as follows:

[0005] A mobile phone ranging module includes a housing, a telescope optical system and a laser ranging system installed inside the housing. The telescope optical system comprises an objective lens group, a reflecting mirror, a prism group, an eyepiece group, and a right-angle prism arranged sequentially along the optical axis from the scene side to the image plane side. The optical axis is divided into three segments: an incident optical axis L1, a perpendicular optical axis L2, and an exit optical axis L3. The incident optical axis L1 and the exit optical axis L3 are vertically parallel and located on the front and rear sides of the perpendicular optical axis L2. The perpendicular optical axis L2 is perpendicular to both the incident optical axis L1 and the exit optical axis L3. The objective lens group and the reflecting mirror are spaced apart along the incident optical axis L1. The reflecting mirror, the prism group, the eyepiece group, and the right-angle prism are spaced apart from top to bottom perpendicular to the optical axis L2. The right-angle prism and the image plane are located on the exit optical axis L3. External scenes are imaged at the image plane position after passing through the objective lens group, the reflecting mirror, the prism group, the eyepiece group, and the right-angle prism.

[0006] When the mobile phone's ranging module is installed on the back of the phone, the phone's camera captures and views the scene at the image plane position.

[0007] The laser ranging system described above includes a laser emitting part and a laser receiving part. The laser emitting part includes a emitting tube, and the laser emitted by the emitting tube is emitted through a prism group and then through a reflecting mirror and an objective lens group.

[0008] The aforementioned laser receiving section includes a receiving mirror and a receiving circuit board with a receiving sensor. The laser reflected back from the photographed scene passes through the receiving mirror and reaches the receiving circuit board.

[0009] The laser emitting and receiving parts mentioned above are located on the left and right sides of the telescope optical system.

[0010] The aforementioned casing also houses a battery that provides DC power.

[0011] Inside the aforementioned casing, a power board and a signal board are also installed. The power board uses a battery to provide DC power and converts it into various DC power outputs to meet different power supply voltage requirements.

[0012] The aforementioned signal board processes the ranging signal, and a serial communication port is set on the signal board to output ranging data. A USB interface is also set on the outer casing for charging the battery.

[0013] The aforementioned casing is also equipped with a push-button switch, which can be pressed to start or stop the laser ranging system.

[0014] The aforementioned outer shell is a flat, square box shape.

[0015] The aforementioned positioning sleeve is provided on the back of the casing. The positioning sleeve is used to fit onto the protruding camera bump on the back of the phone. A through hole is provided at the position of the positioning sleeve and on the casing, through which the light emitted from the right-angle prism passes.

[0016] Compared with the prior art, this utility model has the following advantages:

[0017] Effect 1: The mobile phone ranging module of this utility model is placed outside the mobile phone, so it does not affect the internal layout of the mobile phone and is no longer limited by the size of the mobile phone. The optical component design can be fully utilized to achieve the telescope and ranging functions well. The telescope image has high clarity and the ranging accuracy is high.

[0018] Effect 2: The optical axis of the mobile phone ranging module of this utility model is divided into three segments: the incident optical axis L1, the vertical optical axis L2, and the outgoing optical axis L3. The incident optical axis L1 and the outgoing optical axis L3 are parallel vertically and located on the front and rear sides of the vertical optical axis L2. The vertical optical axis L2 is perpendicular to the incident optical axis L1 and the outgoing optical axis L3. The objective lens group and the reflecting mirror are distributed at intervals along the incident optical axis L1. The reflecting mirror, the prism group, the eyepiece group, and the right-angle prism are distributed at intervals from top to bottom perpendicular to the optical axis L2. The right-angle prism and the image plane are located on the outgoing optical axis L3. External objects are imaged at the image plane position after passing through the objective lens group, the reflecting mirror, the prism group, the eyepiece group, and the right-angle prism. The structure is compact and small in size, making it easy to use with mobile phones. Attached Figure Description

[0019] Figure 1 This is a perspective view of the present invention from a frontal angle;

[0020] Figure 2 This is a perspective view of the rear of the present invention.

[0021] Figure 3 This is a perspective view of the present invention installed on the back of a mobile phone;

[0022] Figure 4 This is an exploded view of the present invention installed on the back of a mobile phone from one angle;

[0023] Figure 5 This is an exploded view of the present invention installed on the back of a mobile phone from another angle;

[0024] Figure 6 This is a side view of the present invention;

[0025] Figure 7 yes Figure 6 B-B sectional view;

[0026] Figure 8 yes Figure 7 AA sectional view. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0028] Example 1:

[0029] like Figures 1 to 8 As shown, this embodiment provides a mobile phone ranging module, including a housing 100, a telescope optical system and a laser ranging system installed inside the housing 1. The telescope optical system comprises an objective lens group 1, a reflecting mirror 2, a prism group 3, an eyepiece group 4, and a right-angle prism 5 arranged sequentially along the optical axis from the scene side to the image plane side. The optical axis is divided into three segments: the incident optical axis L1, the perpendicular optical axis L2, and the exit optical axis L3. The incident optical axis L1 and the exit optical axis L3 are vertically aligned. Parallel and located on both sides of the vertical optical axis L2, which is perpendicular to the incident optical axis L1 and the exit optical axis L3, the objective lens group 1 and the reflecting mirror 2 are distributed at intervals along the incident optical axis L1, and the reflecting mirror 2, the prism group 3, the eyepiece group 4 and the right-angle prism 5 are distributed at intervals from top to bottom perpendicular to the optical axis L2. The right-angle prism 5 and the image plane are located on the exit optical axis L3. External objects are imaged at the image plane position through the objective lens group 1, the reflecting mirror 2, the prism group 3, the eyepiece group 4 and the right-angle prism 5.

[0030] When the mobile phone ranging module is installed on the back 201 of the mobile phone 200, the camera 202 on the mobile phone 200 can capture and view the scene image at the image plane position, and the front 204 of the mobile phone 200 can view the scene image captured by the camera 202 at the image plane position.

[0031] The mobile phone ranging module of this utility model is placed outside the mobile phone, so it does not affect the internal layout of the mobile phone and is no longer limited by the size of the mobile phone. The optical component design can be fully utilized to achieve the telescope and ranging functions well. The telescope image has high clarity and the ranging accuracy is high.

[0032] The aforementioned laser ranging system includes a laser emitting section and a laser receiving section. The laser emitting section includes a emitting tube 6, from which the laser light is emitted. After passing through the prism group 3, the laser light is emitted along the reflecting mirror 2 and the objective lens group 1. The laser receiving section includes a receiving mirror 7 and a receiving circuit board 8 with a receiving sensor. The laser light reflected back from the photographed scene passes through the receiving mirror 7 and reaches the receiving circuit board 8. The laser emitting and receiving sections are located on the left and right sides of the telescope optical system. The structure is simple and the layout is reasonable.

[0033] The aforementioned housing 1 also houses a battery 9, which provides DC power. The housing 1 also houses a power board 10 and a signal board 11. The power board 10 utilizes the DC power provided by the battery 9 to convert it into various DC power outputs to meet different power supply voltage requirements. The structure is simple and the layout is reasonable.

[0034] The aforementioned signal board 11 processes the ranging signal. The signal board 11 is equipped with a serial communication port to output ranging data. The housing 100 is also equipped with a USB interface 12 for charging the battery 9, which is convenient to use and facilitates data transmission.

[0035] The aforementioned housing 100 is also equipped with a button switch 13. Pressing the button switch 13 allows the laser ranging system to be started or stopped, making it convenient to use and eliminating the need to keep the laser ranging system active, thus saving battery power.

[0036] The aforementioned outer casing 100 is a flat, square box shape, which makes it easy to attach to the back of the phone and reduce its size.

[0037] A positioning sleeve 15 is provided on the back of the outer casing 100. The positioning sleeve 15 is used to fit onto the protruding camera bump 203 on the back of the mobile phone. A through hole 14 is provided on the outer casing 100 at the position of the positioning sleeve 15, and the light emitted from the right-angle prism 5 passes through the through hole 14. The structure is reasonably designed and easy to install.

[0038] The above embodiments are preferred embodiments of the present utility model, but the embodiments of the present utility model are not limited thereto. Any changes, modifications, substitutions, combinations, or simplifications made without departing from the spirit and principle of the present utility model are equivalent substitutions and are included within the protection scope of the present utility model.

Claims

1. A mobile phone ranging module, comprising a housing (100), a telescope optical system and a laser ranging system installed inside the housing (100), characterized in that: The telescope optical system comprises, in sequence along an optical axis from a scene side to an image plane side, an objective lens group (1), a mirror (2), a prism group (3), an ocular lens group (4) and a right-angle prism (5), wherein the optical axis is divided into three sections, namely an incident optical axis L1, a vertical optical axis L2 and an outgoing optical axis L3, the incident optical axis L1 is parallel to the outgoing optical axis L3 and located on the front and back sides of the vertical optical axis L2, and the vertical optical axis L2 is perpendicular to the incident optical axis L1 and the outgoing optical axis L3, wherein the objective lens group (1) and the mirror (2) are spaced apart along the incident optical axis L1, the mirror (2), the prism group (3), the ocular lens group (4) and the right-angle prism (5) are spaced apart along the vertical optical axis L2 from top to bottom, the right-angle prism (5) and the image plane are located on the outgoing optical axis L3, and external scenes are imaged on the image plane position through the objective lens group (1), the mirror (2), the prism group (3), the ocular lens group (4) and the right-angle prism (5). When the mobile phone distance measuring module is installed on the back (201) of the mobile phone (200), the camera (202) on the mobile phone (200) captures the image of the scene viewed at the image plane position.

2. The handset ranging module of claim 1, wherein: The laser distance measuring system comprises a laser emitting part and a laser receiving part, the laser emitting part comprises an emitting tube (6), and the laser emitted by the emitting tube (6) is emitted out along the mirror (2) and the objective lens group (1) after passing through the prism group (3).

3. The handset ranging module of claim 2, wherein: The laser receiving part comprises a receiving mirror (7) and a receiving circuit board (8) provided with a receiving sensor, and the laser reflected from the captured scene reaches the receiving circuit board (8) through the receiving mirror (7).

4. The handset ranging module of claim 3, wherein: The laser emitting part and the laser receiving part are distributed on the left and right sides of the telescope optical system.

5. A handset ranging module according to any one of claims 1 to 4, wherein: A battery (9) is further installed in the shell (100), and the battery (9) provides a direct current power supply.

6. The handset ranging module of claim 5, wherein: A power supply board (10) and a signal board (11) are further installed in the shell (100), the power supply board (10) converts various direct current power outputs from the direct current power supply provided by the battery (9) to meet different power supply voltage requirements.

7. A handset ranging module according to claim 6, wherein: The signal board (11) processes the distance measuring signal, a serial communication port is arranged on the signal board (11) to output distance measuring data, and a USB interface (12) is further arranged on the shell (100) to charge the battery (9).

8. The handset ranging module of claim 7, wherein: A button switch (13) is further arranged on the shell (100), and the button switch (13) is pressed to start or stop the laser distance measuring system.

9. The handset ranging module of claim 8, wherein: The shell (100) is a flat four-square box body.

10. The handset ranging module of claim 8, wherein: A positioning sleeve (15) is arranged on the back of the shell (100), the positioning sleeve (15) is used to be sleeved on the protruding camera boss (203) on the back of the mobile phone, a through hole (14) is arranged on the shell (100) at the position of the positioning sleeve (15), and the outgoing light of the right-angle prism (5) passes through the through hole (14).

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