WO2009086748A1 - A zoom method and zoom lens therefor - Google Patents
A zoom method and zoom lens therefor Download PDFInfo
- Publication number
- WO2009086748A1 WO2009086748A1 PCT/CN2008/071214 CN2008071214W WO2009086748A1 WO 2009086748 A1 WO2009086748 A1 WO 2009086748A1 CN 2008071214 W CN2008071214 W CN 2008071214W WO 2009086748 A1 WO2009086748 A1 WO 2009086748A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- zoom
- lens
- photographer
- optical
- image
- Prior art date
Links
Classifications
-
- 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
- G02B7/10—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens
- G02B7/102—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification by relative axial movement of several lenses, e.g. of varifocal objective lens controlled by a microcomputer
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/69—Control of means for changing angle of the field of view, e.g. optical zoom objectives or electronic zooming
Definitions
- the present invention relates to a lens, and more particularly to a zoom method of a lens, and a zoom lens using the zoom method.
- Lens is a must-have book component for many imaging devices, such as cameras, camcorders, etc. Photographers can achieve optimal results with lens focus (FOCUS) and zoom (ZOOM) operations.
- FOCUS lens focus
- ZOOM zoom
- zoom lenses In order to meet the needs of people standing in the same position and shooting different objects, the various zoom lenses (ZOOM LENS) that can be seen on the market now have similar functions, that is, the lens focus can be changed within a predetermined range. The location is taken at different magnifications.
- the zoom mode of the zoom lens can be divided into digital zoom (DIGITAL ZOOM) and optical zoom (OPTICAL ZOOM).
- the digital zoom is a partial imaging using an image sensor, that is, under the control of the device control software, an area is taken out from the originally captured image to be enlarged, thereby realizing the enlargement of the captured image; the optical zoom is changed by the movement of the lens in the lens.
- the focal length of the lens which enables zooming in or out of the captured image.
- digital zoom is a zoom mode at the expense of resolution, that is, image quality, and the image obtained by optical zoom can not only magnify the captured subject, but also the quality of the image will not be degraded.
- digital imaging devices commonly used on the market such as digital cameras and digital video cameras, basically use both optical zoom and digital zoom functions.
- the digital zoom function is enabled. Make up the lens of the device Insufficient optical zoom capability.
- a conventional optical zoom lens in order to achieve the movement of the lens in the lens, in particular, the angle of the lens conforms to the requirements of optically clear imaging, a conventional optical zoom lens must have a precision lens telescopic drive structure to cooperate.
- this drive structure is a mating structure of a helical gear set or a worm/worm gear. This type of drive structure is bulky and complex in structure, and the system is also very expensive.
- the existing zoom method that first uses optical zoom and then enables digital zoom, its optical zoom is a mechanical continuous zoom; and after reaching the limit of the optical zoom function, it can only be electronic Digital zoom at the expense of image quality.
- a first object of the present invention is to provide a more optimized zooming method using a combination of optical zoom and digital zoom.
- a second object of the present invention is to provide a compact and simple structure using the aforementioned zooming method. And a manufacturing lens with a lower cost.
- a zooming method including optical zooming by lens lens movement and digital zooming by image device control software characterized in that At the optical zoom magnification level, The image device control software takes an optical image obtained by the scene on the image sensor and provides the image to the photographer; between the two adjacent optical zoom magnification bits, the image device control software selects an optical zoom magnification bit from a smaller magnification. In the obtained optical image, an area is taken centering on the center of the photographer's framing, and the digital zoom is enlarged to a multiple of the photographer's instruction.
- a zooming method characterized in that it comprises the following steps:
- the lens lens is at the initial position, the initial magnification of the optical zoom of the lens is X times, the captured image acquires an initial X-fold optical image on the image sensor, and the photographer obtains a zoomed X-fold subject;
- a zoom lens characterized in that: a base on which an accommodation space and a positioning component are disposed;
- a driving device comprising a driving motor and a set of transmission gears disposed in the accommodating space of the pedestal; the driving motor is configured to provide power, and the transmission gear set is coupled to the driving motor to be driven;
- An imaging lens device includes a driving collar, a zoom raising ring, a zoom moving body composed of a set of zoom lenses housed in the lens barrel, and a spring that abuts against the zoom moving body; the driving collar The outer wall is provided with a fan-shaped tooth pattern that is coupled to the transmission gear; the inner wall of the transmission collar is provided with a drive buckle; the outer wall of the zoom elevation ring is provided with a transmission provided by the inner wall of the drive collar a buckle that is driven by the buckle; an inner wall of the zoom raising ring is provided with a raised bevel; the zoom moving body is closely attached to the raised hypotenuse of the zoom raising ring by the elastic force of the spring on.
- the driving device further includes a driving screw, one end of the driving screw is fixedly connected to a transmission gear, and a surface of the driving screw is formed with a spiral conductive section;
- the imaging lens device is further
- the utility model comprises a retractable casing which is arranged in the accommodating space of the pedestal and is reciprocally displaceable only along a predetermined lens axial direction by the positioning component, and one side of the retractable casing is arranged There is a interlocking convex ring with an internal thread; the conductive section of the screw is screwed to the interlocking convex ring.
- a sensor is further disposed on the base of the zoom lens, and a sensing device is further disposed on the telescopic housing.
- the optical zoom is a jump operation at a plurality of intermittent positions, and therefore, the optical zoom structure of the lens is relatively simple, and can be realized by an ordinary spur gear transmission, the zoom lens
- the manufacturing cost is very low; between the two optical zoom positions, the image is magnified by digital zoom, which allows the user to obtain acceptable image quality at a lower cost, optimizing the hybrid optical zoom and digital zoom.
- the zoom mode of operation not only reduces the overall manufacturing cost of the lens, but also meets the practical needs of consumers of ordinary digital camera products.
- Figure 1 is a schematic view showing the principle of the zooming method of the present invention
- FIG. 2 is a schematic view showing the working flow of the zooming method of the present invention.
- FIG. 3 is a schematic overall view of the zoom lens of the present invention.
- Figure 4 is an exploded exploded view of the zoom lens of Figure 3. detailed description
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- the image device control software takes an optical image obtained by the scene on the image sensor and supplies it to the photographer. That is, when the photographer operates the zoom control button to set the zoom magnification of the lens to the zoom magnification position of IX or 2X, the image device is an optical zoom function that enables the lens lens, and provides the zoomed image to the photographer. In other words, in these positions, the lens works with optical zoom.
- IX can be double optical zoom, here 2X, can be twice the optical zoom.
- the image device control software is taken from the optical image obtained by IX times, centered on the center of the photographer's framing. An area and the digital zoom is magnified to a multiple of the photographer's command. That is, when the photographer operates the zoom control button, the zoom magnification of the lens is set between the zoom magnification positions of IX times and 2X times, for example, at the position of 1.1 times, the image device control software calls IX times from the memory of the device.
- Optical image taking an area centered on the center of the photographer's framing, enabling the digital zoom function, digitally zoomed in to 1.1 times, and providing it to the photographer; in other words, between the two optical zoom ratios, the lens is digitally zoomed Way to work.
- the operator can press the zoom control button from the IX position to 1.1 times position, that is, zoom zoom (ZOOM IN) to 1.1 times position; also the operator can press the zoom control button from the 1.2 times position to 1.1 times position, that is, zoom reduction (ZOOM OUT) to 1.1 times position.
- 1.1, 1.2, etc. can be 1.1 times or 1.2 times the zoom magnification.
- Figure 1 only depicts the basic principles of the zooming method of the present invention. That is, the optical zoom is intermittently jumping at a plurality of positions, for example, the optical zoom can be at the IX position point, the 2X position position, the 3X position position, the 4X position position, and the N times position point. Working up; and between these two adjacent points, the imaging device works in digital zoom mode.
- the zoom method of the present invention the optical zoom and the digital zoom are alternately operated, the optical zoom operates only at several points, and the digital zoom fills and acts as the position between the adjacent two optical zoom working positions. Zoom function.
- the interval between two adjacent optical zoom working position points is not necessarily the one-time zoom magnification interval; the working position of the optical zoom is not necessarily limited to an integral multiple of the zoom magnification; the initial working position of the optical zoom , it is not necessarily double the zoom ratio; and between two adjacent optical zoom working positions, the digital zoom can also work continuously.
- the zoom method of the present invention can be used in this way: the initial optical zoom of the boot is doubled, and the only position at which the lens lens can be moved is to enlarge the captured scene by 2.5. Double, that is, the other one of the optical zoom operation, and the only one that can be reached is the 2.5x zoom position, and between one and 2.5 times, the zoom function is completely realized by digital. If it is a professional digital camera, the zoom method of the present invention can be used in this way: the initial optical zoom of the boot is doubled, and the lens lens can be moved to reach the working position every 0.5 times zoom magnification, and it can move to the maximum. The working position point of 30 times zoom magnification, and the micro zoom function is realized by digital in every 0.5 time interval.
- the driving structure of the lens in the lens does not need to adopt a complex helical gear set or a worm/worm gear matching structure capable of achieving a continuous optical zoom function, and an ordinary spur gear transmission can be used.
- Drive structure, ie optical zoom structure becomes Very simple, reducing the cost of manufacturing the lens.
- the zoom method of the present invention the optical zoom and the digital zoom alternately work, optimizing the zoom operation mode when the optical zoom and the digital zoom are mixed, so that the user can obtain an acceptable image quality at a low cost.
- Embodiment 2 Embodiment 2:
- a zooming method of the present invention includes the following steps:
- the lens lens When the imaging device is turned on, the lens lens is at the initial position, the initial magnification of the optical zoom of the lens is X times, and the captured image obtains an initial X-fold optical image on the image sensor, and the photographer obtains an X-magnified subject.
- X times here is not limited to double.
- the initial working position of the optical zoom is not necessarily double the zoom magnification; in a preferred embodiment of the present invention, the initial multiple of the optical zoom of the lens Doubled.
- most imaging devices such as digital cameras, digital camcorders, etc., have twice the initial magnification of the optical zoom; at this time, if the photographer presses the capture button, the imaging device is optical imaging that enables the lens optics to obtain optics. The subject being photographed after zooming.
- Y here is not limited to less than X.
- ⁇ is smaller than X, and ⁇ is a decimal value greater than 0 and less than 1, please refer to the situation shown in FIG. 1 , where X is equivalent to IX in FIG. 1 , and ⁇ is 0.1.
- ⁇ + ⁇ is equivalent to 1.1, 1.2, 1.3, etc. in Fig. 1.
- the ⁇ here is not limited to the zoom magnification with a step size of 0.1.
- "the photographer presses the zoom button to ⁇ + ⁇ times” may be a zoom zoom operation (Zoom ln) performed by the photographer from a lower zoom magnification to a higher zoom magnification, or may be a photographer. Zoom Out from a higher zoom ratio to a lower zoom ratio (Zoom Out) Q
- the image device control software calls X times the optical image from the memory of the device.
- the heart takes out an area, enables the digital zoom function, and digitally zooms in to X+Y times and supplies it to the photographer; in other words, the scene image obtained at this time is an image enlarged by digital zoom, and the Y value is not too In large cases, the image quality of the scene being photographed is acceptable.
- the image device is a lens-enabled optical zoom function, and the zooming operation is completed by moving the lens in the lens, and the obtained image of the scene is a very clear optical zoom magnified image; This is also the first zoom operation of the imaging device through the movement of the lens.
- the zoom function between this step (3) and the above step (1) is completely realized by the digital zoom function of the image device control software.
- the steps of this embodiment do not represent all the steps of the zoom method of the present invention.
- the image device will activate the optical zoom function of the lens lens.
- the photographer will obtain an image that is magnified by optical zoom, which is similar to the work of step (3) above.
- the embodiments described in the above embodiments do not represent all the implementations of the present invention;
- the embodiments are not specifically limited to the present invention, and all the technical solutions similar to the present invention, that is, the zoom method of the present invention: optical zoom and digital zoom are alternately operated, and the optical zoom operates only at several positions.
- the digital zoom fills and acts as a zoom function between the two adjacent optical zoom working position points, which should belong to the protection range of the zoom method of the present invention.
- a zoom lens of the present invention includes:
- a base 1 which is a mounting platform for each component of the lens, is a part of the image device, and is provided with a plurality of accommodating spaces 11 for protecting and accommodating functions, and a plurality of fixed positions.
- Positioning component 12 is a base 1, which is a mounting platform for each component of the lens, is a part of the image device, and is provided with a plurality of accommodating spaces 11 for protecting and accommodating functions, and a plurality of fixed positions.
- a driving device 2 includes a driving motor 21 and a set of transmission gears 22 disposed in the accommodating space of the susceptor; the driving motor is for supplying power, and the driving gear set is coupled to the driving motor to be driven.
- the driving device is a power source of the zoom lens of the present invention.
- An imaging lens device 3 includes a drive collar 31, a zoom elevation ring 32, a zoom moving body 34 composed of a set of zoom lenses housed in the lens barrel 33, and a spring that abuts against the zoom moving body
- the outer wall of the transmission collar is provided with a fan-shaped tooth 311 that is in contact with the transmission gear; the inner wall of the transmission collar is provided with a drive buckle (not shown);
- the outer wall of the ring is provided with a driven buckle 321 driven by a drive buckle provided on the inner wall of the drive collar;
- the inner wall of the zoom elevation ring is provided with a raised bevel 322; the zoom moving body is subjected to the spring
- the elastic force is closely attached to the raised hypotenuse of the zoom raising ring.
- the displacement of the zoom moving body composed of a set of zoom lenses will cause a change in the zoom magnification of the lens.
- the drive motor acts as the power source for the lens zoom, its start or stop, and the forward or reverse rotation of the motor can be controlled by the imaging device control software. Therefore, when the zoom lens of the present invention is combined with the zoom method of the present invention, the image device control software can completely issue a start command to the drive motor at the lens optical zoom working position point described in the first embodiment or the second embodiment. , thereby driving the zoom moving body, that is, the zoom lens group is appropriately displaced to complete the corresponding optical zoom function.
- the zoom lens of the present invention has an optical zoom structure which is very simple, and does not use a conventional helical gear set or a worm/worm gear matching structure, and the manufacturing cost of the zoom lens is reduced a lot.
- the overall manufacturing cost of the image product is reduced, and it is also in line with the practical needs of consumers of ordinary digital camera products.
- the driving device further includes a driving screw 4, one end of the driving screw is fixedly connected to a transmission gear, and the surface of the driving screw is formed to have a spiral conduction.
- the imaging lens device further includes a retractable housing 5 disposed in the accommodating space 11 of the base and restricted by the positioning assembly 12 to be reciprocally displaceable only along a predetermined lens axial direction.
- One side of the retractable housing is provided with an interlocking convex ring 51 with an internal thread; the conductive section of the screw is screwed with the interlocking convex ring.
- the retractable housing when the drive motor is activated and the drive gear is rotated, that is, when the lens is zoomed, the retractable housing is also displaced forward or backward along the axial direction of the lens.
- this retractable housing does not have any optical lens having a zooming effect, such front and rear reciprocating displacement does not cause an optical zooming effect.
- the movement of the lens of the conventional imaging apparatus is very similar to that of the conventional imaging apparatus. Therefore, the preferred embodiment of the present invention can be used to remind the photographer of the ongoing operation in a very visual manner. Zoom operation.
- the zoom lens is further provided on the base of the zoom lens.
- a sensor the telescopic housing is further provided with a sensing device, and the sensor disposed on the base can sense the moving distance of the retractable housing. If the sensor is connected to the image device control system, after the sensor senses that the retractable housing has been displaced by a certain distance, the image device control system can issue an instruction to stop the rotation of the drive motor. That is, an instruction to stop the zoom operation is issued.
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Physics & Mathematics (AREA)
- General Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Studio Devices (AREA)
- Lens Barrels (AREA)
Abstract
A lens' zoom method and zoom lens therefore are provided. This zoom method includes optical zoom which is realized by moving the lens and digital zoom which is realized by image device control software. At certain optical zoom ratio, the said image device control software gets optical image of scenery which is acquired on the imaging sensor, and provides to the cameramen; between the two neighboring optical zoom ratios, the said image device control software takes out a region which center is the viewing center of the cameramen,in the optical image which obtains from the smaller optics zoom ratio position, and enlarges to the cameramen instructioned ratio by digital zooming.
Description
一种变焦方法及其变焦镜头 技术领域 Zoom method and zoom lens thereof
本发明涉及镜头, 具体的说, 是涉及一种镜头的变焦方法, 及使用 该变焦方法的变焦镜头。 The present invention relates to a lens, and more particularly to a zoom method of a lens, and a zoom lens using the zoom method.
说 背景技术 Background technology
镜头 (LENS) 是很多影像设备必备的书部件, 如照相机、 摄像机等; 摄影者可以通过镜头的调焦(FOCUS)和变焦(ZOOM)操作而获取最 佳的拍摄效果。 Lens (LENS) is a must-have book component for many imaging devices, such as cameras, camcorders, etc. Photographers can achieve optimal results with lens focus (FOCUS) and zoom (ZOOM) operations.
为了满足人们站在同一位置而拍摄远近不同物体的需要, 现在市场 上可以见到的各种各样的变焦镜头( ZOOM LENS ),其功能都基本类似, 即, 可以在预定范围内改变镜头焦点的位置而以不同放大率拍摄景物。 In order to meet the needs of people standing in the same position and shooting different objects, the various zoom lenses (ZOOM LENS) that can be seen on the market now have similar functions, that is, the lens focus can be changed within a predetermined range. The location is taken at different magnifications.
一般而言, 变焦镜头的变焦方式可以分为数字变焦 (DIGITAL ZOOM)和光学变焦(OPTICAL ZOOM)两种。 数字变焦是利用影像传 感器的局部成像, 即在设备控制软件的控制下, 在原来拍摄的影像中取 出一块区域来放大, 从而实现被摄影像的放大; 光学变焦是依靠镜头内 镜片的移动来改变镜头焦距,从而实现被拍摄影像的放大或缩小。显然, 数字变焦是以牺牲分辨率, 即图像质量为代价的变焦方式, 而通过光学 变焦所获得的影像不但可以放大被拍摄的景物, 同时影像的质量不会降 低。 因此, 现在市场上常见的数码影像设备, 如数码相机、 数码摄像机 等, 基本上都同时采用了光学变焦和数码变焦功能, 在设备镜头的可用 光学变焦倍数用尽后, 启用数码变焦功能, 从而弥补该设备所带镜头的
光学变焦能力的不足。 In general, the zoom mode of the zoom lens can be divided into digital zoom (DIGITAL ZOOM) and optical zoom (OPTICAL ZOOM). The digital zoom is a partial imaging using an image sensor, that is, under the control of the device control software, an area is taken out from the originally captured image to be enlarged, thereby realizing the enlargement of the captured image; the optical zoom is changed by the movement of the lens in the lens. The focal length of the lens, which enables zooming in or out of the captured image. Obviously, digital zoom is a zoom mode at the expense of resolution, that is, image quality, and the image obtained by optical zoom can not only magnify the captured subject, but also the quality of the image will not be degraded. Therefore, digital imaging devices commonly used on the market, such as digital cameras and digital video cameras, basically use both optical zoom and digital zoom functions. When the available optical zoom magnification of the device lens is exhausted, the digital zoom function is enabled. Make up the lens of the device Insufficient optical zoom capability.
但是, 如上所述, 传统的光学变焦镜头, 为了达到镜头内镜片的移 动, 特别是使镜片的角度符合光学清晰成像的要求, 必须有一精密的镜 头伸缩驱动结构加以配合。 就现有技术而言, 这种驱动结构是一种斜齿 轮组或蜗杆 /蜗轮的配合结构。这种驱动结构体积很大, 且结构复杂, 制 造成本也非常高昂。 However, as described above, in order to achieve the movement of the lens in the lens, in particular, the angle of the lens conforms to the requirements of optically clear imaging, a conventional optical zoom lens must have a precision lens telescopic drive structure to cooperate. In the prior art, this drive structure is a mating structure of a helical gear set or a worm/worm gear. This type of drive structure is bulky and complex in structure, and the system is also very expensive.
另外, 现有的这种先采用光学变焦, 然后启用数码变焦的变焦方法, 其光学变焦是一种机械式的连续变焦; 而在达到光学变焦功能的极限 后,又只能是采用电子式的以牺牲图像质量为代价的数码变焦功能。即, In addition, the existing zoom method that first uses optical zoom and then enables digital zoom, its optical zoom is a mechanical continuous zoom; and after reaching the limit of the optical zoom function, it can only be electronic Digital zoom at the expense of image quality. which is,
( 1 ) 在光学变焦期间, 存在着光学变焦功能的浪费: 机械式的连续变 焦, 意味着摄影者对所拍摄景物的略微放大即带来镜头镜片的移动, 而 这种对所摄景物的略微放大的需求, 是可以采用简单的数码变焦即可以 满足的, 因为采用数码变焦对景物所作的略微放大, 不会过于影响图像 的质量; 再有, (2) 在数码变焦期间, 存在着数码变焦功能的虚设: 达 到光学变焦的极限后, 所谓的数码变焦, 不过是影像设备的控制软件从 光学变焦最大倍数时所获取影像中取出一块区域来放大, 显然, 这种放 大, 即数码变焦功能, 是有限的, 否则, 被放大的影像因为质量太差而 根本不符合摄影者的需求。 发明内容 (1) There is a waste of the optical zoom function during optical zooming: Mechanical continuous zoom means that the photographer's slight magnification of the captured subject brings the lens lens to move, and this is slightly different from the subject. The need for zooming in can be met with a simple digital zoom, because the slight zooming of the scene with the digital zoom does not affect the quality of the image too much; (2) During digital zoom, there is a digital zoom Function imaginary: After reaching the limit of optical zoom, the so-called digital zoom, but the control software of the image device takes a part of the image taken from the maximum magnification of the optical zoom to enlarge, obviously, this zoom, that is, the digital zoom function, It is limited. Otherwise, the magnified image does not meet the photographer's needs at all because of poor quality. Summary of the invention
本发明的第一个目的, 在于提供一种更优化的混合运用光学变焦和 数码变焦的变焦方法; 本发明的第二个目的, 在于提供一种采用了前述 变焦方法后, 体积小巧、 结构简单且制造成本较低的变焦镜头。 A first object of the present invention is to provide a more optimized zooming method using a combination of optical zoom and digital zoom. A second object of the present invention is to provide a compact and simple structure using the aforementioned zooming method. And a manufacturing lens with a lower cost.
本发明的优化运用光学变焦和数码变焦的变焦方法是这样实现的: 一种变焦方法, 包括了由镜头镜片移动所实现的光学变焦和由影像 设备控制软件所实现的数码变焦, 其特征在于, 在光学变焦倍率位上,
所述影像设备控制软件取用景物在影像传感器上获得的光学影像, 提供 给摄影者; 在相邻两个光学变焦倍率位之间, 所述影像设备控制软件从 较小倍率的光学变焦倍率位所获得的光学影像中, 以摄影者取景中央为 中心取出一块区域, 并数码变焦放大至摄影者指令的倍数。 一种变焦方法, 其特征在于, 包括了如下步骤: The zooming method of the present invention that utilizes optical zoom and digital zoom is implemented as follows: A zooming method including optical zooming by lens lens movement and digital zooming by image device control software, characterized in that At the optical zoom magnification level, The image device control software takes an optical image obtained by the scene on the image sensor and provides the image to the photographer; between the two adjacent optical zoom magnification bits, the image device control software selects an optical zoom magnification bit from a smaller magnification. In the obtained optical image, an area is taken centering on the center of the photographer's framing, and the digital zoom is enlarged to a multiple of the photographer's instruction. A zooming method, characterized in that it comprises the following steps:
( 1 ) 影像设备开机, 镜头镜片位于初始位置, 镜头光学变焦的初始 倍数为 X倍,被拍摄景物在影像传感器上获得初始 X倍的光学影像,摄 影者获得放大 X倍的被拍摄景物; (1) When the imaging device is turned on, the lens lens is at the initial position, the initial magnification of the optical zoom of the lens is X times, the captured image acquires an initial X-fold optical image on the image sensor, and the photographer obtains a zoomed X-fold subject;
(2) 摄影者按压变焦按钮至 X+Y倍, 影像设备的控制软件接受摄 影者的指令, 从初始 X倍的光学影像中, 以摄影者取景中央为中心取出 一块区域, 并数码放大至 X+Y倍, 摄影者获得放大了 X+Y倍的被拍摄 景物; (2) The photographer presses the zoom button to X+Y times, and the control software of the image device receives the instruction of the photographer. From the initial X-fold optical image, an area is taken out from the center of the photographer's framing, and digitally enlarged to X. +Y times, the photographer gets a zoomed out X+Y times of the captured scene;
(3 ) 摄影者按压变焦按钮至 2X倍, 影像设备的控制软件接受摄影 者的指令, 在控制电路的控制下, 移动镜头镜片至光学变焦的 2X倍位 置, 被拍摄景物在影像传感器上获得 2X倍的光学影像, 摄影者获得放 大了 2X倍的被拍摄景物; (3) The photographer presses the zoom button to 2X times, and the control software of the image device accepts the photographer's instruction. Under the control of the control circuit, the lens lens is moved to the 2X position of the optical zoom, and the captured object obtains 2X on the image sensor. Double the optical image, the photographer gets a 2X magnification of the captured scene;
(4)摄影者按压变焦按钮至 2X+Y倍, 影像设备的控制软件接受摄 影者的指令, 从 2X倍的光学影像中, 以摄影者取景中央为中心取出一 块区域, 并数码放大至 2X+Y倍, 摄影者获得放大了 2X+Y倍的被拍摄 景物。 优选实施方式是, 影像设备开机, 镜头镜片位于初始位置, 镜头光 学变焦的初始倍数为 1倍, 所述 Y为大于 0小于 1之间的小数。 一种变焦镜头, 其特征在于, 包括了:
一个基座, 其上设置有容置空间及定位组件; (4) The photographer presses the zoom button to 2X+Y times, and the control software of the image device accepts the instruction of the photographer. From the 2X-fold optical image, an area is taken out from the center of the photographer's framing, and digitally enlarged to 2X+ Y times, the photographer gets a 2X+Y times larger shot. In a preferred embodiment, the image device is turned on, the lens lens is at the initial position, and the initial magnification of the optical zoom of the lens is 1 time, and the Y is a decimal value greater than 0 and less than 1. A zoom lens characterized in that: a base on which an accommodation space and a positioning component are disposed;
一个驱动装置, 包括了一个驱动马达及设置在所述基座容置空间中 的一组传动齿轮; 所述驱动马达用以提供动力, 所述传动齿轮组与所述 驱动马达连接而受带动; a driving device comprising a driving motor and a set of transmission gears disposed in the accommodating space of the pedestal; the driving motor is configured to provide power, and the transmission gear set is coupled to the driving motor to be driven;
一个成像镜头装置, 包括了一传动套环, 一变焦抬高环, 容纳在镜 头筒体内的由一组变焦镜片组成的变焦移动体, 以及一紧抵变焦移动体 的弹簧; 所述传动套环的外壁设置有一扇形的与所述传动齿轮齿合的齿 纹; 所述传动套环的内壁设置有传动卡扣; 所述变焦抬高环的外壁设置 有受所述传动套环内壁设置的传动卡扣带动的受动卡扣; 所述变焦抬高 环的内壁设置有抬高斜边; 所述变焦移动体受所述弹簧的弹力而紧贴在 所述变焦抬高环的抬高斜边上。 An imaging lens device includes a driving collar, a zoom raising ring, a zoom moving body composed of a set of zoom lenses housed in the lens barrel, and a spring that abuts against the zoom moving body; the driving collar The outer wall is provided with a fan-shaped tooth pattern that is coupled to the transmission gear; the inner wall of the transmission collar is provided with a drive buckle; the outer wall of the zoom elevation ring is provided with a transmission provided by the inner wall of the drive collar a buckle that is driven by the buckle; an inner wall of the zoom raising ring is provided with a raised bevel; the zoom moving body is closely attached to the raised hypotenuse of the zoom raising ring by the elastic force of the spring on.
优选实施方式是, 所述驱动装置还包括有一个传动螺杆, 所述传动 螺杆的一端与一个传动齿轮固定连接, 所述传动螺杆的表面形成有呈螺 旋状的传导段; 所述成像镜头装置还包括有一设置在所述基座的容置空 间中, 并受所述定位组件的限制而仅能沿预定的镜头轴向作往复位移的 可伸缩壳体, 所述可伸缩壳体的一侧设置有一带有内螺纹的连动凸环; 所述螺杆的传导段与所述连动凸环螺接。 In a preferred embodiment, the driving device further includes a driving screw, one end of the driving screw is fixedly connected to a transmission gear, and a surface of the driving screw is formed with a spiral conductive section; the imaging lens device is further The utility model comprises a retractable casing which is arranged in the accommodating space of the pedestal and is reciprocally displaceable only along a predetermined lens axial direction by the positioning component, and one side of the retractable casing is arranged There is a interlocking convex ring with an internal thread; the conductive section of the screw is screwed to the interlocking convex ring.
优选实施方式是, 所述变焦镜头的基座上还设置有一传感器, 所述 可伸缩壳体上还设置有一传感受测件。 In a preferred embodiment, a sensor is further disposed on the base of the zoom lens, and a sensing device is further disposed on the telescopic housing.
实施本发明的一种变焦方法和变焦镜头, 光学变焦是在间断的多个 位置点上跳跃式的工作, 因此, 镜头的光学变焦结构相对简单, 采用普 通的正齿轮传动即可实现, 变焦镜头的制造成本十分低廉; 在两个光学 变焦位置之间, 由数码变焦完成图像的放大功能, 从而使得用户可以以 较低的成本获得可以接受的图像质量, 优化了混合运用光学变焦和数码 变焦时的变焦工作模式, 既降低了镜头的整体制造成本, 也符合普通数 码摄像产品消费者的实用需求。
附图说明 A zoom method and a zoom lens embodying the present invention, the optical zoom is a jump operation at a plurality of intermittent positions, and therefore, the optical zoom structure of the lens is relatively simple, and can be realized by an ordinary spur gear transmission, the zoom lens The manufacturing cost is very low; between the two optical zoom positions, the image is magnified by digital zoom, which allows the user to obtain acceptable image quality at a lower cost, optimizing the hybrid optical zoom and digital zoom. The zoom mode of operation not only reduces the overall manufacturing cost of the lens, but also meets the practical needs of consumers of ordinary digital camera products. DRAWINGS
图 1是本发明变焦方法的原理示意图; Figure 1 is a schematic view showing the principle of the zooming method of the present invention;
图 2是本发明变焦方法的工作流程示意图; 2 is a schematic view showing the working flow of the zooming method of the present invention;
图 3是本发明变焦镜头的整体外形示意图; 3 is a schematic overall view of the zoom lens of the present invention;
图 4是图 3变焦镜头的分解爆炸图。 具体实施方式 Figure 4 is an exploded exploded view of the zoom lens of Figure 3. detailed description
下面, 结合附图和实施例对本发明作进一步的详细说明。 Hereinafter, the present invention will be further described in detail with reference to the accompanying drawings and embodiments.
实施例一: Embodiment 1:
如图 1所示, 本发明的一种变焦方法, 在 IX倍或 2X倍的光学变焦 倍率位置上, 影像设备控制软件取用景物在影像传感器上获得的光学影 像, 提供给摄影者。 即, 当摄影者操作变焦控制按钮, 将镜头的变焦倍 率设定在 IX倍或 2X倍的变焦倍率位置上时,影像设备是启用镜头镜片 的光学变焦功能, 将变焦后的图像提供给摄影者的; 换句话说, 在这些 位置上, 镜头是以光学变焦方式工作的。此处的 IX, 可以就是一倍光学 变焦, 此处的 2X, 可以就是两倍光学变焦。 As shown in Fig. 1, in a zooming method of the present invention, at an optical zoom magnification of IX or 2X, the image device control software takes an optical image obtained by the scene on the image sensor and supplies it to the photographer. That is, when the photographer operates the zoom control button to set the zoom magnification of the lens to the zoom magnification position of IX or 2X, the image device is an optical zoom function that enables the lens lens, and provides the zoomed image to the photographer. In other words, in these positions, the lens works with optical zoom. Here IX, can be double optical zoom, here 2X, can be twice the optical zoom.
如图 1所示, 在两个光学变焦倍率位之间, 比如, 在 IX倍和 2X倍 之间, 影像设备控制软件是从 IX倍所获得的光学影像中, 以摄影者取 景中央为中心取出一块区域,并数码变焦放大至摄影者指令的倍数。即, 当摄影者操作变焦控制按钮,将镜头的变焦倍率设定在 IX倍和 2X倍的 变焦倍率位置之间, 比如在 1.1倍位置时, 影像设备控制软件从设备的 存储器中调用 IX倍的光学影像, 以摄影者取景中央为中心取出一块区 域, 启用数码变焦功能, 数码放大到 1.1倍后, 提供给摄影者; 换句话 说,在两个光学变焦倍率位之间,镜头是以数码变焦方式工作的。并且, 此处的 1.1倍位置, 既可以是操作者从 IX倍位置按压变焦控制按钮至
1.1倍位置, 即变焦放大 (ZOOM IN) 至 1.1倍位置; 也可以是操作者 从 1.2倍位置按压变焦控制按钮至 1.1倍位置,即变焦缩小 (ZOOM OUT) 至 1.1倍位置。图中的 1.1, 1.2等,可以就是 1.1倍或 1.2倍的变焦倍率。 As shown in Fig. 1, between two optical zoom magnification bits, for example, between IX and 2X, the image device control software is taken from the optical image obtained by IX times, centered on the center of the photographer's framing. An area and the digital zoom is magnified to a multiple of the photographer's command. That is, when the photographer operates the zoom control button, the zoom magnification of the lens is set between the zoom magnification positions of IX times and 2X times, for example, at the position of 1.1 times, the image device control software calls IX times from the memory of the device. Optical image, taking an area centered on the center of the photographer's framing, enabling the digital zoom function, digitally zoomed in to 1.1 times, and providing it to the photographer; in other words, between the two optical zoom ratios, the lens is digitally zoomed Way to work. And, here 1.1 times the position, the operator can press the zoom control button from the IX position to 1.1 times position, that is, zoom zoom (ZOOM IN) to 1.1 times position; also the operator can press the zoom control button from the 1.2 times position to 1.1 times position, that is, zoom reduction (ZOOM OUT) to 1.1 times position. In the figure, 1.1, 1.2, etc., can be 1.1 times or 1.2 times the zoom magnification.
显然, 图 1 只是描述了本发明变焦方法的基本原理。 即, 光学变焦 是间断的在多个位置点上跳跃式的工作, 比如, 光学变焦可以在 IX倍 位置点, 2X倍位置点, 3X倍位置点, 4X倍位置点, 一直到 N倍位置 点上工作; 而在这些相邻的两个位置点之间, 影像设备是以数码变焦方 式工作的。 换句话说, 本发明的变焦方法, 光学变焦和数码变焦是交替 着工作的, 光学变焦只在几个位置点上工作, 而数码变焦填补并充当了 相邻两个光学变焦工作位置点之间的变焦功能。 显而易见的, 相邻两个 光学变焦工作位置点之间的间隔, 不一定就是一倍变焦倍率间隔; 光学 变焦的工作位置点, 也不一定限于整数倍的变焦倍率; 光学变焦的初始 工作位置点, 也不一定就是一倍的变焦倍率; 而在相邻两个光学变焦工 作位置点之间, 数码变焦也可以是连续工作的。 Obviously, Figure 1 only depicts the basic principles of the zooming method of the present invention. That is, the optical zoom is intermittently jumping at a plurality of positions, for example, the optical zoom can be at the IX position point, the 2X position position, the 3X position position, the 4X position position, and the N times position point. Working up; and between these two adjacent points, the imaging device works in digital zoom mode. In other words, the zoom method of the present invention, the optical zoom and the digital zoom are alternately operated, the optical zoom operates only at several points, and the digital zoom fills and acts as the position between the adjacent two optical zoom working positions. Zoom function. Obviously, the interval between two adjacent optical zoom working position points is not necessarily the one-time zoom magnification interval; the working position of the optical zoom is not necessarily limited to an integral multiple of the zoom magnification; the initial working position of the optical zoom , it is not necessarily double the zoom ratio; and between two adjacent optical zoom working positions, the digital zoom can also work continuously.
比如, 如果是制造成本极其低廉的玩具级数码相机, 可以这样运用 本发明的变焦方法: 其开机的初始光学变焦为一倍, 其镜头镜片唯一可 移动到达的位置, 是将所拍摄景物放大 2.5倍, 即光学变焦工作的另一 个, 也是唯一一个可到达的位置点是 2.5 倍变焦位置, 而在一倍和 2.5 倍之间, 完全由数码实现变焦功能。 如果是制造专业的数码相机, 可以 这样运用本发明的变焦方法: 其开机的初始光学变焦为一倍, 其镜头镜 片可以移动到达每隔 0.5倍变焦倍率的工作位置点, 且其可以移动到达 最大 30倍变焦倍率的工作位置点, 而在每个 0.5倍的间隔内, 由数码实 现微小的变焦功能。 For example, if it is a toy-grade digital camera that is extremely inexpensive to manufacture, the zoom method of the present invention can be used in this way: the initial optical zoom of the boot is doubled, and the only position at which the lens lens can be moved is to enlarge the captured scene by 2.5. Double, that is, the other one of the optical zoom operation, and the only one that can be reached is the 2.5x zoom position, and between one and 2.5 times, the zoom function is completely realized by digital. If it is a professional digital camera, the zoom method of the present invention can be used in this way: the initial optical zoom of the boot is doubled, and the lens lens can be moved to reach the working position every 0.5 times zoom magnification, and it can move to the maximum. The working position point of 30 times zoom magnification, and the micro zoom function is realized by digital in every 0.5 time interval.
因此, 采用本发明的变焦方法, 镜头中镜片的驱动结构不需要采用 复杂的, 能够实现连续光学变焦功能的斜齿轮组或蜗杆 /蜗轮配合结构, 而采用普通的正齿轮传动即可, 镜片的驱动结构, 即光学变焦结构变得
非常简单, 降低了镜头的制造成本。 另一方面, 本发明的变焦方法, 光 学变焦和数码变焦交替工作, 优化了混合运用光学变焦和数码变焦时的 变焦工作模式, 使得用户可以以较低的成本获得可以接受的图像质量。 实施例二: Therefore, with the zooming method of the present invention, the driving structure of the lens in the lens does not need to adopt a complex helical gear set or a worm/worm gear matching structure capable of achieving a continuous optical zoom function, and an ordinary spur gear transmission can be used. Drive structure, ie optical zoom structure becomes Very simple, reducing the cost of manufacturing the lens. On the other hand, the zoom method of the present invention, the optical zoom and the digital zoom alternately work, optimizing the zoom operation mode when the optical zoom and the digital zoom are mixed, so that the user can obtain an acceptable image quality at a low cost. Embodiment 2:
如图 2所示, 本发明的一种变焦方法, 包括了如下步骤: As shown in FIG. 2, a zooming method of the present invention includes the following steps:
( 1 ) 影像设备开机, 镜头镜片位于初始位置, 镜头光学变焦的初始 倍数为 X倍,被拍摄景物在影像传感器上获得初始 X倍的光学影像,摄 影者获得放大了 X倍的被拍摄景物。 显然, 此处的 X倍, 不限于一倍, 换句话说, 光学变焦的初始工作位置点, 不一定就是一倍的变焦倍率; 在本发明的一个优选实施方式中, 镜头光学变焦的初始倍数为一倍。 事 实上, 大多数的影像设备, 如数码相机, 数码摄像机等, 其光学变焦初 始倍率都是一倍; 此时, 如果摄影者按下拍摄按钮, 影像设备是启用镜 头镜片的光学成像, 获得光学变焦后的被拍摄景物。 (1) When the imaging device is turned on, the lens lens is at the initial position, the initial magnification of the optical zoom of the lens is X times, and the captured image obtains an initial X-fold optical image on the image sensor, and the photographer obtains an X-magnified subject. Obviously, X times here is not limited to double. In other words, the initial working position of the optical zoom is not necessarily double the zoom magnification; in a preferred embodiment of the present invention, the initial multiple of the optical zoom of the lens Doubled. In fact, most imaging devices, such as digital cameras, digital camcorders, etc., have twice the initial magnification of the optical zoom; at this time, if the photographer presses the capture button, the imaging device is optical imaging that enables the lens optics to obtain optics. The subject being photographed after zooming.
(2) 摄影者按压变焦按钮至 X+Y倍, 影像设备的控制软件接受摄 影者的指令, 从初始 X倍的光学影像中, 以摄影者取景中央为中心取出 一块区域, 并数码放大至 X+Y倍, 摄影者获得放大了 X+Y倍的被拍摄 景物。 显然, 此处的 Y, 不限于小于 X。 在本发明的一个优选实施方式 中, Υ小于 X, Υ为大于 0小于 1之间的小数, 请参考图 1所示的情形, 此处的 X相当于图 1中的 IX, Υ为 0.1, 0.2, 0.3等, 则 Χ+Υ相当于图 1中的 1.1, 1.2, 1.3等。显然, 此处的 Υ不限于步长为 0.1的变焦倍率。 另外, 此处的 "摄影者按压变焦按钮至 Χ+Υ倍", 可能是摄影者从较低 的变焦倍率向较高的变焦倍率所进行的变焦放大操作 (Zoom ln), 也可 能是摄影者从较高的变焦倍率向较低的变焦倍率所进行的变焦缩小操 作 (Zoom Out)Q 此时, 如果摄影者按下拍摄按钮, 影像设备控制软件 是从设备的存储器中调用 X倍的光学影像,然后以摄影者取景中央为中
心取出一块区域, 启用数码变焦功能, 数码放大到 X+Y倍后, 提供给 摄影者; 换句话说, 此时所获得的景物图像, 是经数码变焦放大后的图 像, 在 Y值不是太大的情况下, 被拍摄景物的图像质量是可以接受的。 (2) The photographer presses the zoom button to X+Y times, and the control software of the image device receives the instruction of the photographer. From the initial X-fold optical image, an area is taken out from the center of the photographer's framing, and digitally enlarged to X. +Y times, the photographer gets a zoomed out X+Y times of the scene being photographed. Obviously, Y here is not limited to less than X. In a preferred embodiment of the present invention, Υ is smaller than X, and Υ is a decimal value greater than 0 and less than 1, please refer to the situation shown in FIG. 1 , where X is equivalent to IX in FIG. 1 , and Υ is 0.1. 0.2, 0.3, etc., then Χ+Υ is equivalent to 1.1, 1.2, 1.3, etc. in Fig. 1. Obviously, the Υ here is not limited to the zoom magnification with a step size of 0.1. In addition, here, "the photographer presses the zoom button to Χ+Υ times" may be a zoom zoom operation (Zoom ln) performed by the photographer from a lower zoom magnification to a higher zoom magnification, or may be a photographer. Zoom Out from a higher zoom ratio to a lower zoom ratio (Zoom Out) Q At this time, if the photographer presses the capture button, the image device control software calls X times the optical image from the memory of the device. And then take the photographer's framing center for the middle The heart takes out an area, enables the digital zoom function, and digitally zooms in to X+Y times and supplies it to the photographer; in other words, the scene image obtained at this time is an image enlarged by digital zoom, and the Y value is not too In large cases, the image quality of the scene being photographed is acceptable.
(3) 摄影者按压变焦按钮至 2X倍, 影像设备的控制软件接受摄影 者的指令, 在控制电路的控制下, 移动镜头镜片至光学变焦的 2X倍位 置, 被拍摄景物在影像传感器上获得 2X倍的光学影像, 摄影者获得放 大了 2X倍的被拍摄景物。 显然, 此处的 2X, 不限于就是影像设备初始 变焦倍率的二倍; 此处的 2X, 也不限于就是景物被放大二倍的位置: 正 如实施例一所描述的, 相邻两个光学变焦工作位置点之间的间隔, 不一 定就是一倍变焦倍率间隔; 光学变焦的工作位置点, 也不一定限于整数 倍的变焦倍率。 显而易见的, 在此步骤中, 影像设备是启用了镜头的光 学变焦功能, 通过移动镜头中的镜片, 完成了变焦工作, 此时所获得的 景物图像, 是十分清晰的光学变焦放大图像; 同时, 这也是影像设备第 一次的通过镜片移动所进行的变焦工作, 在本步骤(3)和上述步骤(1 ) 之间的变焦功能, 完全是由影像设备控制软件的数码变焦功能实现的。 (3) The photographer presses the zoom button to 2X times, and the control software of the image device accepts the photographer's instruction. Under the control of the control circuit, the lens lens is moved to the 2X position of the optical zoom, and the captured object obtains 2X on the image sensor. In the optical image of the magnification, the photographer obtains a 2X-fold enlarged subject. Obviously, 2X here is not limited to twice the initial zoom magnification of the image device; 2X here is not limited to the position where the scene is doubled: As described in the first embodiment, the adjacent two optical zooms The interval between the working position points is not necessarily the one-time zoom magnification interval; the working position point of the optical zoom is not necessarily limited to an integral multiple of the zoom magnification. Obviously, in this step, the image device is a lens-enabled optical zoom function, and the zooming operation is completed by moving the lens in the lens, and the obtained image of the scene is a very clear optical zoom magnified image; This is also the first zoom operation of the imaging device through the movement of the lens. The zoom function between this step (3) and the above step (1) is completely realized by the digital zoom function of the image device control software.
(4)摄影者按压变焦按钮至 2X+Y倍, 影像设备的控制软件接受摄 影者的指令, 从 2X倍的光学影像中, 以摄影者取景中央为中心取出一 块区域, 并数码放大至 2X+Y倍, 摄影者获得放大了 2X+Y倍的被拍摄 景物。 本步骤的工作, 类似上述步骤 (2), 是由影像设备控制软件的数 码变焦功能实现的; 相关的工作过程, 请参阅上述步骤 (2), 此处不再 赘述。 (4) The photographer presses the zoom button to 2X+Y times, and the control software of the image device accepts the instruction of the photographer. From the 2X-fold optical image, an area is taken out from the center of the photographer's framing, and digitally enlarged to 2X+ Y times, the photographer gets a 2X+Y times larger shot. The operation of this step, similar to the above step (2), is realized by the digital zoom function of the image device control software; for the related working process, please refer to the above step (2), which will not be described here.
需要说明的是, 本实施例的步骤, 并不代表实施本发明的变焦方法 的全部步骤, 比如, 在上述步骤 (4) 之后的下一步骤, 影像设备又将 启用镜头镜片的光学变焦功能, 对被拍摄景物进行光学放大, 摄影者将 获得光学变焦放大后的图像, 即类似上述步骤 (3) 的工作过程。 总之, 上述实施例所描述的实施方式, 并不代表本发明所有的实现方式; 以上
实施例也不是对本发明的具体限定, 所有与本发明相类似的技术方案, 即, 本发明的变焦方法: 光学变焦和数码变焦是交替着工作的, 光学变 焦只在几个位置点上工作, 而数码变焦填补并充当了相邻两个光学变焦 工作位置点之间的变焦功能, 都应属于本发明变焦方法的保护范围。 实施例三: It should be noted that the steps of this embodiment do not represent all the steps of the zoom method of the present invention. For example, in the next step after the above step (4), the image device will activate the optical zoom function of the lens lens. Optically magnifying the subject, the photographer will obtain an image that is magnified by optical zoom, which is similar to the work of step (3) above. In summary, the embodiments described in the above embodiments do not represent all the implementations of the present invention; The embodiments are not specifically limited to the present invention, and all the technical solutions similar to the present invention, that is, the zoom method of the present invention: optical zoom and digital zoom are alternately operated, and the optical zoom operates only at several positions. The digital zoom fills and acts as a zoom function between the two adjacent optical zoom working position points, which should belong to the protection range of the zoom method of the present invention. Embodiment 3:
如图 3和图 4所示, 本发明的一种变焦镜头, 包括了: As shown in FIG. 3 and FIG. 4, a zoom lens of the present invention includes:
一个基座 1, 该基座是镜头各组成部件的安装平台, 是影像设备的一 部份, 其上设置有起保护、 容纳作用的多个容置空间 11, 以及起固定位 置作用的多个定位组件 12。 a base 1, which is a mounting platform for each component of the lens, is a part of the image device, and is provided with a plurality of accommodating spaces 11 for protecting and accommodating functions, and a plurality of fixed positions. Positioning component 12.
一个驱动装置 2, 包括了一个驱动马达 21及设置在基座容置空间中 的一组传动齿轮 22; 所述驱动马达用以提供动力, 所传动齿轮组与所述 驱动马达连接而受带动。 驱动装置, 是本发明变焦镜头的动力源。 A driving device 2 includes a driving motor 21 and a set of transmission gears 22 disposed in the accommodating space of the susceptor; the driving motor is for supplying power, and the driving gear set is coupled to the driving motor to be driven. The driving device is a power source of the zoom lens of the present invention.
一个成像镜头装置 3, 包括了一传动套环 31, 一变焦抬高环 32, 容 纳在镜头筒体 33内的由一组变焦镜片组成的变焦移动体 34, 以及一紧 抵变焦移动体的弹簧 35;所述传动套环的外壁设置有一扇形的与所述传 动齿轮齿合的齿纹 311 ; 所述传动套环的内壁设置有传动卡扣 (图中未 示出); 所述变焦抬高环的外壁设置有受所述传动套环内壁设置的传动 卡扣带动的受动卡扣 321 ; 所述变焦抬高环的内壁设置有抬高斜边 322; 所述变焦移动体受所述弹簧的弹力而紧贴在所述变焦抬高环的抬高斜 边上。 贝 1」, 当驱动马达接电启动, 带动传动齿轮组转动; 由于传动齿轮 221与传动套环外壁的扇形齿纹 311齿合, 传动套环将被带动着旋转一 个扇形角度; 由于传动套环与变焦抬高环相互卡扣, 变焦抬高环将被带 动着以镜头中轴线为中心旋转一个角度; 由于变焦抬高环内壁上设置有 抬高斜边, 且变焦移动体是受弹簧的弹力而紧贴在变焦抬高环的抬高斜 边上的, 因此, 当变焦抬高环旋转一个角度时, 其抬高斜边将带动变焦
移动体沿镜头中轴线方向作向前或向后的位移, 显然, 由一组变焦镜片 所组成的变焦移动体的位移,将导致镜头变焦倍率的变化。显而易见的, 驱动马达作为镜头变焦的动力源, 其启动或停止, 马达的正转或反转, 是可以受影像设备控制软件所操控的。 因此, 当本发明的变焦镜头与本 发明的变焦方法相结合时, 影像设备控制软件完全可以在上述实施例一 或实施例二所述的镜头光学变焦工作位置点上, 给驱动马达发出启动指 令, 从而驱动变焦移动体, 即变焦镜片组作出适当位移, 完成相应的光 学变焦功能。 An imaging lens device 3 includes a drive collar 31, a zoom elevation ring 32, a zoom moving body 34 composed of a set of zoom lenses housed in the lens barrel 33, and a spring that abuts against the zoom moving body The outer wall of the transmission collar is provided with a fan-shaped tooth 311 that is in contact with the transmission gear; the inner wall of the transmission collar is provided with a drive buckle (not shown); The outer wall of the ring is provided with a driven buckle 321 driven by a drive buckle provided on the inner wall of the drive collar; the inner wall of the zoom elevation ring is provided with a raised bevel 322; the zoom moving body is subjected to the spring The elastic force is closely attached to the raised hypotenuse of the zoom raising ring. Bell 1", when the drive motor is powered on, the drive gear set is rotated; since the drive gear 221 is meshed with the fan-shaped rib 311 on the outer wall of the drive collar, the drive collar will be rotated to rotate a sector angle; The zoom elevation ring is snapped with the zoom raising ring, and the zoom raising ring is driven to rotate at an angle centered on the central axis of the lens; since the inner side of the zoom raising ring is provided with a raised bevel, and the zoom moving body is elasticized by the spring It fits snugly on the raised bevel of the zoom raise ring, so when the zoom raise ring is rotated by an angle, its raised bevel will drive the zoom The moving body is displaced forward or backward along the central axis of the lens. Obviously, the displacement of the zoom moving body composed of a set of zoom lenses will cause a change in the zoom magnification of the lens. Obviously, the drive motor acts as the power source for the lens zoom, its start or stop, and the forward or reverse rotation of the motor can be controlled by the imaging device control software. Therefore, when the zoom lens of the present invention is combined with the zoom method of the present invention, the image device control software can completely issue a start command to the drive motor at the lens optical zoom working position point described in the first embodiment or the second embodiment. , thereby driving the zoom moving body, that is, the zoom lens group is appropriately displaced to complete the corresponding optical zoom function.
从上述实施例可以很清楚的看到, 本发明的变焦镜头, 其光学变焦 结构非常简单, 没有采用传统的斜齿轮组或蜗杆 /蜗轮的配合结构, 变焦 镜头的制造成本降低了很多, 从而既降低了影像产品的整体制造成本, 也符合普通数码摄像产品消费者的实用需求。 It can be clearly seen from the above embodiments that the zoom lens of the present invention has an optical zoom structure which is very simple, and does not use a conventional helical gear set or a worm/worm gear matching structure, and the manufacturing cost of the zoom lens is reduced a lot. The overall manufacturing cost of the image product is reduced, and it is also in line with the practical needs of consumers of ordinary digital camera products.
本发明的变焦镜头的一个优选实施方式是, 所述驱动装置还包括有 一个传动螺杆 4, 所述传动螺杆的一端与一个传动齿轮固定连接, 所述 传动螺杆的表面形成有呈螺旋状的传导段; 所述成像镜头装置还包括有 一设置在所述基座的容置空间 11中, 并受所述定位组件 12的限制而仅 能沿预定的镜头轴向作往复位移的可伸缩壳体 5, 所述可伸缩壳体的一 侧设置有一带有内螺纹的连动凸环 51 ;所述螺杆的传导段与所述连动凸 环螺接。 这种优选实施方式, 当驱动马达启动, 传动齿轮转动, 即镜头 进行变焦时, 也同时带动可伸缩壳体沿镜头轴向作向前或向后的位移。 显然, 由于这种可伸缩壳体中不带有任何具有变焦作用的光学镜片, 这 种前后的往复位移, 并不发生光学变焦的效果。 但是, 由于这种往复的 位移动作, 非常类似传统影像设备的镜头在进行变焦操作时的运动动 作, 因此, 实施本发明的该优选实施方式, 可以以非常形象的方式, 提 醒摄影者正在进行的变焦操作。 In a preferred embodiment of the zoom lens of the present invention, the driving device further includes a driving screw 4, one end of the driving screw is fixedly connected to a transmission gear, and the surface of the driving screw is formed to have a spiral conduction. The imaging lens device further includes a retractable housing 5 disposed in the accommodating space 11 of the base and restricted by the positioning assembly 12 to be reciprocally displaceable only along a predetermined lens axial direction. One side of the retractable housing is provided with an interlocking convex ring 51 with an internal thread; the conductive section of the screw is screwed with the interlocking convex ring. In this preferred embodiment, when the drive motor is activated and the drive gear is rotated, that is, when the lens is zoomed, the retractable housing is also displaced forward or backward along the axial direction of the lens. Obviously, since this retractable housing does not have any optical lens having a zooming effect, such front and rear reciprocating displacement does not cause an optical zooming effect. However, due to this reciprocating displacement action, the movement of the lens of the conventional imaging apparatus is very similar to that of the conventional imaging apparatus. Therefore, the preferred embodiment of the present invention can be used to remind the photographer of the ongoing operation in a very visual manner. Zoom operation.
本发明的另一个优选实施方式是, 所述变焦镜头的基座上还设置有
一传感器, 所述可伸缩壳体上还设置有一传感受测件, 则, 设在基座上 的传感器可以感测到可伸缩壳体的移动距离。 如果将该传感器接入到影 像设备控制系统中, 贝 1」, 当传感器感测到可伸缩壳体发生了一定距离的 位移后,影像设备控制系统即可向驱动马达发出停止转动的指令,也即, 发出了变焦操作停止的指令。 Another preferred embodiment of the present invention is that the zoom lens is further provided on the base of the zoom lens. A sensor, the telescopic housing is further provided with a sensing device, and the sensor disposed on the base can sense the moving distance of the retractable housing. If the sensor is connected to the image device control system, after the sensor senses that the retractable housing has been displaced by a certain distance, the image device control system can issue an instruction to stop the rotation of the drive motor. That is, an instruction to stop the zoom operation is issued.
总之, 上述实施例所描述的几种实施方式, 并不代表本发明所有的 实现方式; 以上实施例不是对本发明的具体限定, 所有与本发明相类似 的技术方案, 都应属于本发明的保护范围。
In other words, the several embodiments described in the above embodiments do not represent all the implementation manners of the present invention; the above embodiments are not specifically limited to the present invention, and all technical solutions similar to the present invention should belong to the protection of the present invention. range.
Claims
1、 一种变焦方法, 包括了由镜头镜片移动所实现的光学变焦和由影像 设备控制软件所实现的数码变焦, 其特征在于, 在光学变焦倍率位上, 所述影像设备控制软件取用景物在影像传感器上获得的光学影像, 提供 给摄影者; 在相邻两个光学变焦倍率位之间, 所述影像设备控制软件从 较小倍率的光学变焦倍率位所获得的光学影像中, 以摄影者取景中央为 中心取出一块区域, 并数码变焦放大至摄影者指令的倍数。 1. A zooming method comprising an optical zoom achieved by movement of a lens lens and a digital zoom implemented by image device control software, wherein the image device control software accesses a scene at an optical zoom magnification level An optical image obtained on the image sensor is provided to the photographer; between the two optical zoom magnification bits, the image device control software captures the optical image obtained from the optical zoom magnification of the smaller magnification The center of the framing takes center as an area, and the digital zoom is enlarged to a multiple of the photographer's command.
2、 一种变焦方法, 其特征在于, 包括了如下步骤: 2. A zoom method, characterized in that it comprises the following steps:
( 1 ) 影像设备开机, 镜头镜片位于初始位置, 镜头光学变焦的初始 倍数为 X倍,被拍摄景物在影像传感器上获得初始 X倍的光学影像,摄 影者获得放大 X倍的被拍摄景物; (1) When the imaging device is turned on, the lens lens is at the initial position, the initial magnification of the optical zoom of the lens is X times, the captured image acquires an initial X-fold optical image on the image sensor, and the photographer obtains a zoomed X-fold subject;
(2) 摄影者按压变焦按钮至 X+Y倍, 影像设备的控制软件接受摄 影者的指令, 从初始 X倍的光学影像中, 以摄影者取景中央为中心取出 一块区域, 并数码放大至 X+Y倍, 摄影者获得放大了 X+Y倍的被拍摄 景物; (2) The photographer presses the zoom button to X+Y times, and the control software of the image device receives the instruction of the photographer. From the initial X-fold optical image, an area is taken out from the center of the photographer's framing, and digitally enlarged to X. +Y times, the photographer gets a zoomed out X+Y times of the captured scene;
(3) 摄影者按压变焦按钮至 2X倍, 影像设备的控制软件接受摄影 者的指令, 在控制电路的控制下, 移动镜头镜片至光学变焦的 2X倍位 置, 被拍摄景物在影像传感器上获得 2X倍的光学影像, 摄影者获得放 大了 2X倍的被拍摄景物; (3) The photographer presses the zoom button to 2X times, and the control software of the image device accepts the photographer's instruction. Under the control of the control circuit, the lens lens is moved to the 2X position of the optical zoom, and the captured object obtains 2X on the image sensor. Double the optical image, the photographer gets a 2X magnification of the captured scene;
(4)摄影者按压变焦按钮至 2X+Y倍, 影像设备的控制软件接受摄 影者的指令, 从 2X倍的光学影像中, 以摄影者取景中央为中心取出一 块区域, 并数码放大至 2X+Y倍, 摄影者获得放大了 2X+Y倍的被拍摄 景物。
3、 根据权利要求 2所述的一种变焦方法, 其特征在于, 影像设备开机, 镜头镜片位于初始位置, 镜头光学变焦的初始倍数为 1倍, 所述 Y为大 于 0小于 1之间的小数。 (4) The photographer presses the zoom button to 2X+Y times, and the control software of the image device accepts the instruction of the photographer. From the 2X-fold optical image, an area is taken out from the center of the photographer's framing, and digitally enlarged to 2X+ Y times, the photographer gets a 2X+Y times larger shot. 3. The zoom method according to claim 2, wherein the image device is turned on, the lens lens is at an initial position, and an initial multiple of the optical zoom of the lens is 1 time, and the Y is a decimal value greater than 0 and less than 1. .
4、 一种变焦镜头, 其特征在于, 包括了: 4. A zoom lens characterized in that:
一个基座, 其上设置有容置空间及定位组件; a base on which an accommodation space and a positioning component are disposed;
一个驱动装置, 包括了一个驱动马达及设置在所述基座容置空间中 的一组传动齿轮; 所述驱动马达用以提供动力, 所述传动齿轮组与所述 驱动马达连接而受带动; a driving device comprising a driving motor and a set of transmission gears disposed in the accommodating space of the pedestal; the driving motor is configured to provide power, and the transmission gear set is coupled to the driving motor to be driven;
一个成像镜头装置, 包括了一传动套环, 一变焦抬高环, 容纳在镜 头筒体内的由一组变焦镜片组成的变焦移动体, 以及一紧抵变焦移动体 的弹簧; 所述传动套环的外壁设置有一扇形的与所述传动齿轮齿合的齿 纹; 所述传动套环的内壁设置有传动卡扣; 所述变焦抬高环的外壁设置 有受所述传动套环内壁设置的传动卡扣带动的受动卡扣; 所述变焦抬高 环的内壁设置有抬高斜边; 所述变焦移动体受所述弹簧的弹力而紧贴在 所述变焦抬高环的抬高斜边上。 An imaging lens device includes a driving collar, a zoom raising ring, a zoom moving body composed of a set of zoom lenses housed in the lens barrel, and a spring that abuts against the zoom moving body; the driving collar The outer wall is provided with a fan-shaped tooth pattern that is coupled to the transmission gear; the inner wall of the transmission collar is provided with a drive buckle; the outer wall of the zoom elevation ring is provided with a transmission provided by the inner wall of the drive collar a buckle that is driven by the buckle; an inner wall of the zoom raising ring is provided with a raised bevel; the zoom moving body is closely attached to the raised hypotenuse of the zoom raising ring by the elastic force of the spring on.
5、 根据权利要求 4所述的一种变焦镜头, 其特征在于, 所述驱动装置 还包括有一个传动螺杆, 所述传动螺杆的一端与一个传动齿轮固定连 接, 所述传动螺杆的表面形成有呈螺旋状的传导段; 所述成像镜头装置 还包括有一设置在所述基座的容置空间中, 并受所述定位组件的限制而 仅能沿预定的镜头轴向作往复位移的可伸缩壳体, 所述可伸缩壳体的一 侧设置有一带有内螺纹的连动凸环; 所述螺杆的传导段与所述连动凸环 螺接。
The zoom lens according to claim 4, wherein the driving device further comprises a driving screw, one end of the driving screw is fixedly connected to a driving gear, and a surface of the driving screw is formed a spiral-shaped conductive segment; the imaging lens device further includes a telescopic device disposed in the accommodating space of the pedestal and reciprocally displaceable only along a predetermined lens axial direction by the positioning assembly a casing, one side of the retractable casing is provided with an interlocking convex ring with an internal thread; the conductive section of the screw is screwed with the interlocking convex ring.
6、 根据权利要求 5所述的一种变焦镜头, 其特征在于, 所述变焦镜头 的基座上还设置有一传感器, 所述可伸缩壳体上还设置有一传感受测 件。
The zoom lens according to claim 5, wherein a sensor is further disposed on the base of the zoom lens, and a sensing device is further disposed on the telescopic housing.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN200810002600.6 | 2008-01-04 | ||
CNA2008100026006A CN101257579A (en) | 2008-01-04 | 2008-01-04 | Zoom method and its zoom lens |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009086748A1 true WO2009086748A1 (en) | 2009-07-16 |
Family
ID=39892013
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/CN2008/071214 WO2009086748A1 (en) | 2008-01-04 | 2008-06-06 | A zoom method and zoom lens therefor |
Country Status (2)
Country | Link |
---|---|
CN (1) | CN101257579A (en) |
WO (1) | WO2009086748A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103959760A (en) * | 2011-11-29 | 2014-07-30 | Lg伊诺特有限公司 | Camera module and a method for assembling the same |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN101257579A (en) * | 2008-01-04 | 2008-09-03 | 宝淇科技有限公司 | Zoom method and its zoom lens |
CN112153271B (en) * | 2019-06-27 | 2022-05-20 | Oppo广东移动通信有限公司 | Control method and control device for optical lens of electronic equipment and storage medium |
TW202204958A (en) | 2020-07-24 | 2022-02-01 | 大陸商信泰光學(深圳)有限公司 | Image capturing device and zoom control method thereof |
CN112378526B (en) * | 2020-11-18 | 2023-02-03 | 山东神戎电子股份有限公司 | Large-zoom-ratio continuous hybrid zooming infrared thermal imager |
DE102023100645B3 (en) | 2023-01-12 | 2024-07-04 | Carl Zeiss Meditec Ag | Method for changing a total magnification of an optical observation device, control device for an optical observation device and optical observation device |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1525781A (en) * | 2003-02-25 | 2004-09-01 | �ձ�������ʽ���� | Wireless terminal comprising a camera |
US20040189830A1 (en) * | 2003-03-29 | 2004-09-30 | Hewlett-Packard Development Company, L.P. | Combined optical and digital zoom |
JP2006325276A (en) * | 2006-09-11 | 2006-11-30 | Olympus Corp | Imaging apparatus |
CN1928604A (en) * | 2005-09-08 | 2007-03-14 | 佳能株式会社 | Lens device, image pickup device and image pickup system |
CN101257579A (en) * | 2008-01-04 | 2008-09-03 | 宝淇科技有限公司 | Zoom method and its zoom lens |
-
2008
- 2008-01-04 CN CNA2008100026006A patent/CN101257579A/en active Pending
- 2008-06-06 WO PCT/CN2008/071214 patent/WO2009086748A1/en active Application Filing
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1525781A (en) * | 2003-02-25 | 2004-09-01 | �ձ�������ʽ���� | Wireless terminal comprising a camera |
US20040189830A1 (en) * | 2003-03-29 | 2004-09-30 | Hewlett-Packard Development Company, L.P. | Combined optical and digital zoom |
CN1928604A (en) * | 2005-09-08 | 2007-03-14 | 佳能株式会社 | Lens device, image pickup device and image pickup system |
JP2006325276A (en) * | 2006-09-11 | 2006-11-30 | Olympus Corp | Imaging apparatus |
CN101257579A (en) * | 2008-01-04 | 2008-09-03 | 宝淇科技有限公司 | Zoom method and its zoom lens |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103959760A (en) * | 2011-11-29 | 2014-07-30 | Lg伊诺特有限公司 | Camera module and a method for assembling the same |
US10015382B2 (en) | 2011-11-29 | 2018-07-03 | Lg Innotek Co., Ltd. | Camera module having foreign objects blocking structure and a method for assembling the same |
Also Published As
Publication number | Publication date |
---|---|
CN101257579A (en) | 2008-09-03 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2009086748A1 (en) | A zoom method and zoom lens therefor | |
JP2007212630A (en) | Lens unit and imaging apparatus | |
JP2008026712A (en) | Imaging apparatus with a plurality of optical systems | |
TWI457691B (en) | Dimensional image camera, convergence distance adjustment method and program | |
EP2101206B1 (en) | Lens barrel | |
WO2004099870A1 (en) | Camera | |
JP2003227992A (en) | Camera and its manufacturing method | |
TWI448769B (en) | Zooming of lens mechanism and image pickup device using the same | |
JP5566163B2 (en) | Lens barrel and imaging device | |
JP2008046200A (en) | Lens barrel and imaging apparatus | |
JP2006157225A (en) | Imaging apparatus | |
JP2005115316A (en) | Photographing equipment and lens barrel | |
JP2009217014A (en) | Lens barrel and photographing device | |
JP2002112097A (en) | Camera | |
JP4974833B2 (en) | LENS DEVICE AND IMAGING DEVICE | |
TWI471596B (en) | Zoom lens structure and image capturing device thereof | |
JP2000134526A (en) | Camera | |
TWI459031B (en) | Zoom lens structure and image pickup device thereof | |
JP2008032918A (en) | Imaging apparatus including a plurality of optical systems | |
US20130155525A1 (en) | Lens driving module and image pickup apparatus thereof | |
JP6727961B2 (en) | Optical equipment | |
KR100592888B1 (en) | Sliding type mobile communication terminal having camera with zoom function | |
JP2007058203A (en) | Imaging apparatus including a plurality of optical systems | |
JP2005215565A (en) | Lens device, camera system, and camera | |
JP2006003851A (en) | Bifocal length switching lens barrel |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 08757625 Country of ref document: EP Kind code of ref document: A1 |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 08757625 Country of ref document: EP Kind code of ref document: A1 |