CN116088252A - Image acquisition device and method - Google Patents

Image acquisition device and method Download PDF

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Publication number
CN116088252A
CN116088252A CN202211741369.9A CN202211741369A CN116088252A CN 116088252 A CN116088252 A CN 116088252A CN 202211741369 A CN202211741369 A CN 202211741369A CN 116088252 A CN116088252 A CN 116088252A
Authority
CN
China
Prior art keywords
optical lens
image
imaging module
module
image information
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202211741369.9A
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Chinese (zh)
Inventor
杨天柱
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shenzhen Heroje Electronics Co ltd
Original Assignee
Shenzhen Heroje Electronics Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen Heroje Electronics Co ltd filed Critical Shenzhen Heroje Electronics Co ltd
Priority to CN202211741369.9A priority Critical patent/CN116088252A/en
Publication of CN116088252A publication Critical patent/CN116088252A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/17—Bodies with reflectors arranged in beam forming the photographic image, e.g. for reducing dimensions of camera
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
    • G01S7/48—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S17/00
    • G01S7/481—Constructional features, e.g. arrangements of optical elements
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B13/00—Optical objectives specially designed for the purposes specified below
    • G02B13/001—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras
    • G02B13/0055—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element
    • G02B13/0065—Miniaturised objectives for electronic devices, e.g. portable telephones, webcams, PDAs, small digital cameras employing a special optical element having a beam-folding prism or mirror
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B17/00—Systems with reflecting surfaces, with or without refracting elements
    • G02B17/08—Catadioptric systems

Abstract

The invention provides an image acquisition device and method, the device comprises an optical lens which is arranged in front of a preset object and focuses the image information of the preset object; the imaging module is used for acquiring the image information focused by the optical lens; the reflecting mirror module is arranged between the optical lens and the imaging module, reflects the image information focused by the optical lens to the imaging module and is used for changing the image distance between the optical lens and the imaging module so as to match the object distance between the preset object and the optical lens. By arranging the reflector module between the optical lens and the imaging module and adjusting the image distance through the reflector, the matching between the object distance and the image distance is realized, so that the object distance range of the collectable image can be enlarged, the effect of increasing the laser ranging range can be achieved in a limited space when the device is applied to a laser ranging device, and the effect of enlarging the shooting visual field can be achieved in shooting photographic equipment.

Description

Image acquisition device and method
Technical Field
The invention belongs to the technical field of optical imaging, and particularly relates to an image acquisition device and method.
Background
As shown in fig. 1, in the process of image acquisition or photographing, the size of the field of view and the focal position can be changed by adjusting the focal length of the lens, so as to acquire clear images and picture sizes at different positions.
When the lens is used for a long-focus use scene, the lens tends to be longer in prominence and larger in volume.
Disclosure of Invention
In order to meet the above needs, the present invention provides an image acquisition device and method, which are used for solving the problems that the occupied space of a long-focal-length optical path cannot be used in a scene with limited volume, and the focal length needs to be flexibly changed in a limited space.
The present invention is achieved by an image acquisition apparatus comprising:
an optical lens arranged in front of a preset object and focusing image information of the preset object;
the imaging module is used for acquiring the image information focused by the optical lens;
the reflecting mirror module is arranged between the optical lens and the imaging module, reflects the image information focused by the optical lens to the imaging module and is used for changing the image distance between the optical lens and the imaging module so as to match the object distance between the preset object and the optical lens.
Preferably, the reflector module comprises a reflector plate and a position adjusting assembly, and the reflector plate is fixed on the position adjusting assembly.
Preferably, the position adjusting assembly is a front-back adjusting assembly for adjusting the front-back movement of the reflecting mirror plate in the horizontal direction.
Preferably, the position adjusting assembly is a height adjusting assembly for adjusting the up-and-down movement of the reflecting mirror plate in the vertical direction.
Preferably, the optical lens comprises one or more convex lenses and/or one or more concave lenses.
Preferably, the camera is used for widening the camera view.
Preferably, the image acquisition device further comprises a laser emission module, the imaging module is a laser receiving element, and the image acquisition device is used for enlarging a laser ranging range.
The invention also discloses an image acquisition method, which comprises the following steps:
a reflector module is arranged between the optical lens and the imaging module;
focusing through an optical lens to obtain first image information of a preset object;
the reflector module adjusts the image distance between the optical lens and the imaging module through position change to perform focusing, so that the object distance between the preset object and the optical lens is matched with the image distance between the optical lens and the imaging module, and second image information of the preset object is obtained;
the imaging module collects the second image information.
Compared with the prior art, the beneficial effects are that:
according to the image acquisition device, the reflector module is arranged between the optical lens and the imaging module, the image distance is adjusted through the reflector, and the matching between the object distance and the image distance is realized, so that the object distance range of an acquired image can be enlarged, the image acquisition device can be applied to a laser ranging device in a limited space to achieve the effect of enlarging the laser ranging range, and can be applied to photographing equipment to achieve the effect of enlarging the photographing visual field.
Drawings
FIG. 1 is a schematic diagram of the optical path principle contrast of prior art image acquisition;
fig. 2 is a schematic view of an image pickup principle of an image pickup apparatus of the first embodiment;
fig. 3 is a schematic diagram of a ranging principle of a laser ranging device according to a second embodiment.
Reference numerals illustrate:
10. a reflector module; 11. a reflection lens; 12. a position adjustment assembly;
21. a focusing lens; 22. a photoelectric conversion element;
31. a laser emission module; 32. an optical lens; 33. a laser receiving element.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
In the description of the present invention, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "left", "right", "front", "rear", "forward", "reverse", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on the drawings, are merely for convenience of describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific direction, be configured and operated in a specific direction, and thus should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; furthermore, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be directly connected or indirectly connected through an intermediate medium, and can be the communication between the two parts. The specific meaning of the terms in the present invention will be understood by those of ordinary skill in the art in specific detail.
The invention relates to an image acquisition device, which comprises an optical lens, a lens holder and a lens holder, wherein the optical lens is arranged in front of a preset object and focuses image information of the preset object; the imaging module is used for acquiring the image information focused by the optical lens; the reflecting mirror module is arranged between the optical lens and the imaging module, reflects the image information focused by the optical lens to the imaging module and is used for changing the image distance between the optical lens and the imaging module so as to match the object distance between the preset object and the optical lens.
Compared with the prior art, the image acquisition device provided by the invention has the advantages that the image distance is adjusted through the reflector by arranging the reflector module between the optical lens and the imaging module, so that the matching between the object distance and the image distance is realized, the object distance range of the acquired image can be enlarged, the effect of enlarging the laser ranging range is achieved in a limited space when the image acquisition device is applied to a laser ranging device, and the effect of enlarging the shooting visual field is achieved in shooting photographic equipment.
Example 1
Referring to fig. 2, the image capturing device of the present embodiment is applied to a photographing apparatus. Specifically, the photographing apparatus includes a focus lens 21, a mirror module 10, and a photoelectric conversion element 22, the mirror module 10 being disposed between the focus lens 21 and the photoelectric conversion element 22.
In the present embodiment, the mirror module 10 includes a mirror plate 11 and a position adjusting assembly 12, and the mirror plate 11 is fixed on the position adjusting assembly 12.
In the present embodiment, the position adjusting assembly 12 is a front-rear adjusting assembly for adjusting the front-rear movement of the reflection mirror 11 in the horizontal direction. Specifically, the front-back adjusting component comprises a front-back moving base, a front-back moving sliding group and a front-back moving push rod, the reflecting lens 11 is fixed on the front-back moving push rod, the front-back moving push rod is fixed on a sliding block of the front-back moving sliding group, a sliding rail of the front-back moving sliding group is fixed on the front-back moving base, and the front-back moving base is fixed in the image acquisition device. The push rod can be manually controlled or automatically controlled to move back and forth, and the specific power mode is not limited.
In the present embodiment, the position adjusting assembly 12 is a height adjusting assembly for adjusting the up-and-down movement of the reflecting mirror 11 in the vertical direction. Specifically, the height adjusting assembly comprises a height moving base, a height moving sliding group and a height moving push rod, the reflecting lens 11 is fixed on the height moving push rod, the height moving push rod is fixed on a sliding block of the height moving sliding group, a sliding rail of the height moving sliding group is fixed on the height moving base, and the height moving base is fixed in the image collecting device. The height moving push rod can be controlled manually or automatically, and the specific power mode is not limited.
In the present embodiment, the focus lens 21 includes one or more convex lenses and/or one or more concave lenses. It can be appreciated that the optical lens 32 in this embodiment may be configured according to a specific application scenario, and may be a plurality of convex lenses, a plurality of concave lenses, or a combination of a plurality of convex lenses and a plurality of concave lenses.
The focusing method of the photographing apparatus includes:
focusing by the focusing lens 21 according to the preset object position to obtain first image information;
according to the visual field range and definition of the first image information, the height or distance of the reflector module 10 is adjusted, when the reflector module 10 moves upwards or moves towards the direction close to the photoelectric conversion element 22, the second image information with larger visual field is obtained, and when the reflector module 10 moves downwards or moves towards the direction far away from the photoelectric conversion element 22, the second image information with smaller visual field and clearer visual field is obtained;
the photoelectric conversion element 22 acquires the second image information and stores it as a clear image file.
The photographing apparatus can change the size of the field of view and the focus position without lengthening the lens or changing the lens by using the mirror module 10, thereby achieving the effect of adjusting the photographing field of view and the photographing definition of the lens.
Example two
Referring to fig. 3, the image acquisition device of the present embodiment is applied to a laser ranging device. Specifically, the laser ranging device includes a laser emitting module 31, an optical lens 32, a mirror module 10, and a laser receiving element 33, wherein the mirror module 10 is disposed between the optical lens 32 and the photoelectric conversion element 22. Wherein the mirror module 10 is the same as in the first embodiment.
In the present embodiment, the optical lens 32 includes one or more convex lenses and/or one or more concave lenses. It can be appreciated that the optical lens 32 in this embodiment may be configured according to a specific application scenario, and may be a plurality of convex lenses, a plurality of concave lenses, or a combination of a plurality of convex lenses and a plurality of concave lenses.
The ranging method of the laser ranging device comprises the following steps:
the laser emission module 31 emits laser perpendicular to the preset object;
the laser is reflected to the optical lens 32 and focused by the optical lens 32 to obtain first image information;
judging whether the preset object is in the range of the laser ranging device according to whether effective first image information can be acquired, and if the effective first image information is not available, adjusting the reflector module 10, specifically moving towards the direction close to the laser receiving element 33 or upwards so as to acquire the image information of the preset object and obtain second image information;
the laser receiving element 33 collects the second image information and calculates a preset object distance according to the second image information.
The laser ranging device can increase the ranging range through the use of the reflector module 10 so as to adapt to more application scenes.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.

Claims (8)

1. An image acquisition device, comprising:
an optical lens arranged in front of a preset object and focusing image information of the preset object;
the imaging module is used for acquiring the image information focused by the optical lens;
the reflecting mirror module is arranged between the optical lens and the imaging module, reflects the image information focused by the optical lens to the imaging module and is used for changing the image distance between the optical lens and the imaging module so as to match the object distance between the preset object and the optical lens.
2. The image capture device of claim 1, wherein the mirror module comprises a mirror plate and a position adjustment assembly, the mirror plate being secured to the position adjustment assembly.
3. The image capturing mechanism of claim 2, wherein the position adjustment assembly is a back and forth adjustment assembly for adjusting the back and forth movement of the mirror plate in a horizontal direction.
4. The image capturing mechanism of claim 2, wherein the position adjustment assembly is a height adjustment assembly for adjusting the upward and downward movement of the mirror plate in a vertical direction.
5. The image capturing device of claim 1, wherein the optical lens comprises one or more convex lenses and/or one or more concave lenses.
6. The image pickup apparatus according to claim 1, wherein the image pickup apparatus is used for widening a photographing field of view of a photographing device.
7. The image acquisition device of claim 1, further comprising a laser emission module, wherein the imaging module is a laser receiving element, and wherein the image acquisition device is configured to increase a laser ranging range.
8. An image acquisition method, comprising:
a reflector module is arranged between the optical lens and the imaging module;
focusing through an optical lens to obtain first image information of a preset object;
the reflector module adjusts the image distance between the optical lens and the imaging module through position change to perform focusing, so that the object distance between the preset object and the optical lens is matched with the image distance between the optical lens and the imaging module, and second image information of the preset object is obtained;
the imaging module collects the second image information.
CN202211741369.9A 2022-12-30 2022-12-30 Image acquisition device and method Pending CN116088252A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202211741369.9A CN116088252A (en) 2022-12-30 2022-12-30 Image acquisition device and method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202211741369.9A CN116088252A (en) 2022-12-30 2022-12-30 Image acquisition device and method

Publications (1)

Publication Number Publication Date
CN116088252A true CN116088252A (en) 2023-05-09

Family

ID=86201987

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202211741369.9A Pending CN116088252A (en) 2022-12-30 2022-12-30 Image acquisition device and method

Country Status (1)

Country Link
CN (1) CN116088252A (en)

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