CN113031195A - Infrared noninductive automatic focusing device - Google Patents
Infrared noninductive automatic focusing device Download PDFInfo
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- CN113031195A CN113031195A CN202110260433.0A CN202110260433A CN113031195A CN 113031195 A CN113031195 A CN 113031195A CN 202110260433 A CN202110260433 A CN 202110260433A CN 113031195 A CN113031195 A CN 113031195A
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/28—Systems for automatic generation of focusing signals
- G02B7/40—Systems for automatic generation of focusing signals using time delay of the reflected waves, e.g. of ultrasonic waves
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/18—Focusing aids
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B13/00—Viewfinders; Focusing aids for cameras; Means for focusing for cameras; Autofocus systems for cameras
- G03B13/32—Means for focusing
- G03B13/34—Power focusing
- G03B13/36—Autofocus systems
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
- Focusing (AREA)
Abstract
The invention discloses an infrared non-sensing automatic focusing device which comprises an infrared distance measuring module, a posture sensing module, a posture correcting module and a focusing module, wherein the infrared distance measuring module is used for measuring the linear distance between a camera lens and a shot object, the posture sensing module is used for sensing the posture change of the camera and generating posture change information, the posture correcting module generates the correction information of the lens posture according to the posture change information, the focusing module automatically focuses the camera lens according to the correction information, the posture change of the camera lens is detected through the posture sensing module, the distance between the camera lens and the shot object is detected through the infrared distance measuring module, and then the posture correcting module corrects the camera lens posture according to the posture change and the distance of the camera lens so as to realize automatic focusing.
Description
Technical Field
The invention relates to the technical field of focusing devices, in particular to an infrared non-inductive automatic focusing device.
Background
The basic principle of operation of the image pickup apparatus is the same: the optical image signal is converted into an electrical signal for storage or transmission. When an object is shot, light reflected by the object is collected by a camera lens, so that the light is focused on a light receiving surface of an image pickup device (such as a target surface of an image pickup tube), and then the light is converted into electric energy through the image pickup device, so that a 'video signal' is obtained. The photoelectric signal is weak, and needs to be amplified through a pre-discharge circuit, and then processed and adjusted through various circuits, and finally the obtained standard signal can be sent to a recording medium such as a video recorder and the like to be recorded, or can be transmitted through a transmission system or sent to a monitor to be displayed.
When the camera shooting device shoots, the camera shooting lens can be caused to generate attitude change due to the movement of the camera shooting device, and then the shot image can be caused to generate depth of field deviation, so that the definition of the image is influenced.
In order to solve the above problems, an infrared non-inductive automatic focusing device is proposed.
Disclosure of Invention
The technical problem to be solved by the invention is to overcome the defects of the prior art and provide an infrared non-inductive automatic focusing device, and in order to solve the technical problem, the invention provides the following technical scheme:
the invention provides an infrared non-inductive automatic focusing device which comprises an infrared distance measuring module, a posture sensing module, a posture correcting module and a focusing module, wherein the infrared distance measuring module is used for measuring the linear distance between a lens of a camera device and a shot object, the posture sensing module is used for sensing the posture change of the camera device and generating posture change information, the posture correcting module generates correction information of the posture of the lens according to the posture change information, and the focusing module performs automatic focusing on the lens according to the correction information.
As a further optimization of the above technical solution, the infrared ranging module includes an infrared ranging sensor, and the infrared ranging sensor is installed in a camera lens of the camera device.
As a further optimization of the above technical solution, the attitude sensing module includes a gyroscope or a gravity sensor.
As a further optimization of the above technical solution, the working method thereof includes:
step 1) when the lens of the camera shooting equipment shoots an article, the infrared distance measuring module detects the linear distance between the lens of the camera shooting equipment and the shot article, and the detected linear distance is defined as L;
step 2) sensing the posture change of the lens of the camera by the posture sensing module, and generating an angle between the lens of the camera and a shot object, wherein the angle is defined as A;
step 3) generating posture correction information of the lens of the camera equipment by the posture correction module according to the angle A and the linear distance L respectively detected by the posture sensing module and the infrared ranging module;
and 4) automatically adjusting the posture of the lens by the focusing module according to the posture correction information generated in the step so as to ensure the depth of field of the shot image.
As a further optimization of the above technical solution, the device further includes a feedback module, where the feedback module is configured to detect the depth of field focused by the focusing module, and automatically feed the detected depth of field back to the focusing module, and the detected depth of field is automatically corrected by the focusing module according to the detection result.
Compared with the prior art, the invention has the following beneficial effects: the attitude sensing module is used for detecting the attitude change of the camera lens, the infrared distance measuring module is used for detecting the distance between the camera lens and a shot object, and the attitude correction module is used for correcting the attitude of the camera lens according to the attitude change and the distance of the camera lens so as to realize automatic focusing.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic diagram of a frame structure of an infrared non-inductive automatic focusing apparatus according to the present invention;
description of reference numerals:
the system comprises an infrared distance measuring module 1, an attitude sensing module 2, an attitude correcting module 3, a focusing module 4 and a feedback module 5.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.
Examples
As shown in FIG. 1, an infrared non-sensing automatic focusing device comprises an infrared distance measuring module 1, a gesture sensing module 2, a gesture correcting module 3, a focusing module 4 and a feedback module 5, the infrared distance measuring module 1 is used for measuring the linear distance between the lens of the camera device and the shot object, the attitude sensing module 2 is used for sensing the attitude change of the camera device, and generates attitude change information, the attitude correction module 3 generates correction information of the lens attitude according to the attitude change information, the focusing module 4 automatically focuses the lens according to the correction information, the feedback module 5 is used for detecting the depth of field focused by the focusing module 4, and automatically fed back to the focusing module 4, and automatically corrected by the focusing module 4 according to the detection result, when the detected depth of field has deviation, and the focusing module 4 continues to automatically correct the posture of the lens according to the feedback result of the feedback module 5 until the image is clear.
The infrared ranging module 1 comprises an infrared ranging sensor, and the infrared ranging sensor is installed in a camera lens of the camera equipment.
The gesture sensing module 2 includes a gyroscope or a gravity sensor.
The embodiment also discloses a working method of the infrared non-inductive automatic focusing device, which comprises the following steps:
step 1), when a lens of the camera shooting equipment shoots an article, detecting the linear distance between the lens of the camera shooting equipment and the shot article by the infrared distance measuring module 1, and defining the detected linear distance as L;
step 2) sensing the posture change of the lens of the camera by the posture sensing module 2, and generating an angle between the lens of the camera and a shot object, wherein the angle is defined as A;
step 3), generating posture correction information of the lens of the camera equipment by the posture correction module 3 according to the angle A and the linear distance L respectively detected by the posture sensing module 2 and the infrared ranging module 1;
and 4) automatically adjusting the posture of the lens by the focusing module 4 according to the posture correction information generated in the step so as to ensure the depth of field of the shot image.
Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that changes may be made in the embodiments and/or equivalents thereof without departing from the spirit and scope of the invention. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (5)
1. The infrared non-inductive automatic focusing device is characterized by comprising an infrared distance measuring module, an attitude sensing module, an attitude correcting module and a focusing module, wherein the infrared distance measuring module is used for measuring the linear distance between a lens of a camera device and a shot object, the attitude sensing module is used for sensing the attitude change of the camera device and generating attitude change information, the attitude correcting module generates correction information of the attitude of the lens according to the attitude change information, and the focusing module automatically focuses the lens according to the correction information.
2. The infrared noninductive autofocus apparatus of claim 1, wherein the infrared ranging module comprises an infrared ranging sensor installed in a camera lens of the image pickup device.
3. The infrared non-inductive automatic focusing device according to claim 1, wherein said attitude sensing module comprises a gyroscope or a gravity sensor.
4. An infrared noninductive autofocus device according to claim 1, characterized in that the operating method comprises:
step 1) when the lens of the camera shooting equipment shoots an article, the infrared distance measuring module detects the linear distance between the lens of the camera shooting equipment and the shot article, and the detected linear distance is defined as L;
step 2) sensing the posture change of the lens of the camera by the posture sensing module, and generating an angle between the lens of the camera and a shot object, wherein the angle is defined as A;
step 3) generating posture correction information of the lens of the camera equipment by the posture correction module according to the angle A and the linear distance L respectively detected by the posture sensing module and the infrared ranging module;
and 4) automatically adjusting the posture of the lens by the focusing module according to the posture correction information generated in the step so as to ensure the depth of field of the shot image.
5. The infrared non-inductive automatic focusing device according to claim 1, further comprising a feedback module, wherein the feedback module is used for detecting the depth of field focused by the focusing module and automatically feeding back the depth of field to the focusing module, and the focusing module automatically feeds back the depth of field to the focusing module according to the detection result.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202110260433.0A CN113031195A (en) | 2021-03-10 | 2021-03-10 | Infrared noninductive automatic focusing device |
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| CN202110260433.0A CN113031195A (en) | 2021-03-10 | 2021-03-10 | Infrared noninductive automatic focusing device |
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| JPH0980520A (en) * | 1995-09-14 | 1997-03-28 | Nikon Corp | Camera capable of correcting image blurring |
| JP2005265448A (en) * | 2004-03-16 | 2005-09-29 | Canon Inc | Acceleration detecting apparatus, photographic apparatus, temperature correction method, lens drive rate correction method, shutter drive control method, and program |
| US20070098380A1 (en) * | 2005-11-03 | 2007-05-03 | Spielberg Anthony C | Systems and methods for improved autofocus in digital imaging systems |
| JP2008003394A (en) * | 2006-06-23 | 2008-01-10 | Nikon Corp | Camera, camera system, and position adjustment method |
| JP2010181642A (en) * | 2009-02-05 | 2010-08-19 | Nikon Corp | Focus detecting device and imaging apparatus |
| US20100329653A1 (en) * | 2009-02-03 | 2010-12-30 | Hoya Corporation | Camera |
| JP2012049999A (en) * | 2010-08-30 | 2012-03-08 | Nikon Corp | Imaging apparatus and posture adjustment program |
| KR20130106536A (en) * | 2012-03-20 | 2013-09-30 | 엘지이노텍 주식회사 | Camera module and calibration method thereof |
| CN108646384A (en) * | 2018-04-13 | 2018-10-12 | 维沃移动通信有限公司 | A kind of focusing method, device and mobile terminal |
| CN110972516A (en) * | 2018-09-26 | 2020-04-07 | 深圳市大疆创新科技有限公司 | Camera and unmanned aerial vehicle |
| TWI703400B (en) * | 2019-04-01 | 2020-09-01 | 中強光電股份有限公司 | Focal length calibration method and projection device |
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2021
- 2021-03-10 CN CN202110260433.0A patent/CN113031195A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0980520A (en) * | 1995-09-14 | 1997-03-28 | Nikon Corp | Camera capable of correcting image blurring |
| JP2005265448A (en) * | 2004-03-16 | 2005-09-29 | Canon Inc | Acceleration detecting apparatus, photographic apparatus, temperature correction method, lens drive rate correction method, shutter drive control method, and program |
| US20070098380A1 (en) * | 2005-11-03 | 2007-05-03 | Spielberg Anthony C | Systems and methods for improved autofocus in digital imaging systems |
| JP2008003394A (en) * | 2006-06-23 | 2008-01-10 | Nikon Corp | Camera, camera system, and position adjustment method |
| US20100329653A1 (en) * | 2009-02-03 | 2010-12-30 | Hoya Corporation | Camera |
| JP2010181642A (en) * | 2009-02-05 | 2010-08-19 | Nikon Corp | Focus detecting device and imaging apparatus |
| JP2012049999A (en) * | 2010-08-30 | 2012-03-08 | Nikon Corp | Imaging apparatus and posture adjustment program |
| KR20130106536A (en) * | 2012-03-20 | 2013-09-30 | 엘지이노텍 주식회사 | Camera module and calibration method thereof |
| CN108646384A (en) * | 2018-04-13 | 2018-10-12 | 维沃移动通信有限公司 | A kind of focusing method, device and mobile terminal |
| CN110972516A (en) * | 2018-09-26 | 2020-04-07 | 深圳市大疆创新科技有限公司 | Camera and unmanned aerial vehicle |
| TWI703400B (en) * | 2019-04-01 | 2020-09-01 | 中強光電股份有限公司 | Focal length calibration method and projection device |
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Address after: 210000 Zhening East Road 368, Lishui Economic Development Zone, Nanjing City, Jiangsu Province Applicant after: Jiangsu Jinshi Chuanqi Technology Co.,Ltd. Address before: 210000 North-2, 13th floor, building A3, 8 Bailongjiang East Street, Xincheng Science Park, Jianye District, Nanjing City, Jiangsu Province Applicant before: Jiangsu Jinshi Chuanqi Technology Co.,Ltd. |
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Application publication date: 20210625 |
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