TW200523663A - Modularized stepless aperture adjusting device - Google Patents

Abstract

The prevent invention provides a modularized stepless aperture adjusting device, which comprises a body, a driving device, and an adjusting device; the body has an accommodating space and an aperture hole; and, the driving device is configured on the body, and includes a motor and a driving rod rotated by the motor; and, the adjusting device can be configured in the accommodating space moveably, and includes two aperture sheets pulled by the driving rod and moving with each other, each aperture sheet has a notch in an "L" shape opposite to each other, and the area surrounded by the two notches is aligned with the aperture hole; thus, by precisely controlling the motor for continuously outputting the rotational speed and angular displacement, the device can move the two notches in the direction toward each other or away from each other, and precisely control the area surrounded by the two notches, so as to achieve the optimized incident light amount for the camera, and improve the photographic quality.

Description

200523663 (1) Description of the invention: [Technical field to which the invention belongs] The present invention relates to an aperture device for a camera, and more particularly to a modular stepless adjustment type aperture device applicable to a digital camera. [Prior art] Stomach-like cameras are provided with an aperture device to control the light entering the camera, and the aperture device generally has an aperture hole that can adjust the size of the aperture. By adjusting the size of the aperture hole opening, the amount of light that enters the camera For the best conditions, you can get the best photography results. However, cameras that use autofocus and aperture adjustment have been used by most non-experts. With the advancement of technology, digital cameras have gradually replaced traditional cameras, and digital camera designs are also designed to be light, thin, short, Small design, therefore, the aperture device must also be developed in a compact direction. Existing camera aperture devices, such as the Republic of China Announcement No. 4 3 1 603 "Camera Composite Aperture Shutter Device", use an aperture shutter element, and a plurality of apertures of different aperture sizes are provided on the aperture shutter element at intervals. The aperture shutter element is rotated by a driving device to cover an aperture of the aperture, and the size of different apertures is changed to control the amount of light entering the camera. However, there are existing technical methods mentioned above. Due to the limited number of openings, the effect of aperture adjustment can only be limited to the number and size of the openings to produce a limited stepwise adjustment effect, that is, when changing With different openings, the number of openings is the adjustable number of aperture adjustment effects. This technical method of aperture adjustment cannot provide precise control of the amount of light entering the camera. good. [Summary of the Invention] The main object of the present invention is to provide a camera aperture mount f 'that can be adjusted steplessly so that the aperture device can accurately control the amount of light entering the camera and improve the quality of photography. Another object of the present invention is to provide a camera optical device that can be manufactured in a modular manner, which can improve the efficiency of camera assembly and manufacturing and reduce the production cost. To achieve the above object, the present invention includes a main body, a driving device and an adjusting device. The main body is recessed with two accommodating rooms, and has a combination seat and a through aperture hole. The driving device is The combination seat includes a motor and a driving rod coupled to the motor and rotated by the motor. The adjusting device is movably disposed in the main body accommodating space and includes two aperture plates that move relative to each other. Each of the aperture plates has A superimposed portion superimposed on each other and a long arm respectively connected to a coupling post of a driving rod, each superposed portion is provided with a &lt; -shaped notch corresponding to each other, a region surrounded by the two notches Align with the aperture hole. Thus, the effects achieved by the present invention are as follows: (1) Since the rotation speed and angular displacement of the motor can be accurately controlled and continuously output by the servo controller, the diaphragm is controlled by pulling the diaphragm by the control motor. The two notches on it are moved toward or away from each other, which can precisely control and change the area surrounded by the two notches to achieve the effect of steplessly adjusting the aperture, which optimizes the amount of light entering the camera and improves the photography. quality. 200523663 (2) The adjustment device can be designed and manufactured in a modular manner, which is applicable to various camera lenses', which can improve product compatibility and reduce costs such as design and manufacturing. [Embodiment] Please refer to the first figure, the aperture diaphragm (10) of the present invention is provided in a lens barrel (20), and a plurality of lenses are installed in the lens barrel (20), and A slot (21) is provided for receiving the part of the aperture device (10). Please refer to the second and third figures. The aperture device (10) includes a body (11), a driving device (12), an adjusting device (13), and an outer cover (14): the body ( 11) is a hollow shell, one side of which is recessed with an accommodating space (1 1 1) and four square positioning posts (1 1 5) arranged in the accommodating space (1 1 1), and the other side A combination seat (1 1 2) is provided, and the body (1 2) is provided with two arc-shaped guide perforations (1 1 3) corresponding to each other at a position relative to the combination seat (1 1 2). 11 A through aperture hole (114) is provided at 2). The driving device (1 2) is a device mounted on the combining base (1 1 2) and includes a motor (121), an interface device (122), and a horizontal driving rod (123). The motor (121) may be a stepping motor or It is preferable to use a motor 'interface device (1 2 2) having a current sensor (1 2 5) composed of a Hall element to sense a change in stator coil current in the motor (1 2 1). It is electrically connected to the motor (121) 'and supplies the current sensor (125) with an electrical ground connection device on 200523663, so that the motor (1 2 1) can be controlled by a controller such as a servo controller through the interface device (1 22). Controlled rotation. At the same time, the current sensor (25) can also measure the measured current value through the interface device (丄 2 2) to the controller to achieve the servo feedback control motor (1 2 1) operation. Ο The driving rod (1 2 3) is rotatable by a motor (work 2 &quot; and has two convex posts (1 24) 'combined convex; ^ (工 24) respectively face and correspond to the guide holes (1 1 3). Adjusting device (1 3) is movably provided in the accommodation space (1 1 1) of the body (1 work), and includes two opposite to each other The moving diaphragm (1 3 1) and the two coupling sleeves (i 3 2), each diaphragm (work 3 丄) has a superimposed portion (133) superimposed on each other, and a plurality of corresponding positioning protrusions (丄 丄 5) positioning guide hole (&quot; 7) and one point ^ should be-the long arm (i 3 4) of the guide perforation (work i 3); each stack 0 ° 卩 (1 3 3) is provided with one another The relative <shaped notch (1 3 5) can be changed by moving the relative position of the two aperture plates (131) to change the size of the notch (1 3 5) surrounded by the overlapping portion (1 3 3). Adjust the aperture; each long arm (1 3 4) is corresponding to the guide hole (Gonggong 3) and is provided with a long guide hole (1 3 6). During assembly, each diaphragm (1 3 1) is partially superimposed on In the accommodating space (1 ii) of the body (1 t), each positioning protrusion (Gonggong 5) is slidably received in the corresponding positioning guide hole (丄 3 7), and two notches ( The area surrounded by 135) is aligned with the aperture hole (1 1 4), and the two coupling sleeves (χ 3 2) respectively pass through the long guide hole (work 200523663 3 6), and can be slidably received and penetrate the guide through , Combined with the combined convex pillar (i 2 4) (1 1 3) Back) Turn the driving lever (丄 2 3) clockwise or: ',,,, (1 2 1 light 圏 produces relative movement and pulls the surrounding area to produce enlargement or reduction. 3 5) outside The cover (1 4) is provided on the body (丄 i) between the body (1 1 并, Ganbushi 1 1) to close the accommodation space 1 1), and has an outer perforation (i 4 1 Bu 1 (1 1 4) 凊 Referring to the fourth figure, it is the motor 9 τ that drives 垆 r. . ， '迓 （1 2 1） Clockwise rotation of media move # (123)' The driving lever (123) pulls the diaphragm (&quot; 1) to cause relative movement so that the two notches (1 q 口 口 35) on them move away. The area surrounded by the two notches (135) will gradually expand when moving towards each other, increasing the amount of light entering the camera. Please refer to the fifth figure, it is only when the motor (i 2 i) rotates the drive counterclockwise (123). The drive lever (123) pulls the diaphragm (13 1) to cause relative movement to make two notches (135) on it. Move towards each other, at this time, the area surrounded by the two notches (135) will gradually decrease, reducing the amount of light entering by the camera. Since the rotation speed and angular displacement of the motor (121) can be precisely controlled and output continuously by the servo controller, the two notches (135 ) Moving towards or away from each other can precisely control and change the area surrounded by the two notches (1 3 5), so as to optimize the amount of light entering the camera and improve the quality of photography. 200523663 The technical means of the present invention disclosed above is only used to explain the preferred implementation state of the present invention, but it does not mean that the implementation mode of the present invention is limited to the above disclosed preferred embodiments. According to the present invention, changes in appearance or size, but substantially the same as the technical means disclosed in the present invention, should not be excluded from the scope of the patent application for which the invention is claimed. [Brief Description of the Drawings] (1) Schematic Part The first drawing is an exploded perspective view of a camera lens including a preferred embodiment of the present invention. The first figure is a perspective view of a preferred embodiment of the present invention. The third figure is an exploded perspective view of a preferred embodiment of the present invention. (Representative figure. The fourth figure is a circle of use of the preferred embodiment of the present invention when adjusting the enlarged aperture. The fifth figure is a diagram of the use of the preferred embodiment of the present invention when adjusting the reduced aperture. 1 0) Aperture device (1 1 1) accommodating space (113) guide hole (1 1 5) positioning protrusion (1 2 1) motor (1 2 3) driving rod (1 1) body (1 1 2) combination Base (1 1 4) aperture hole (1 2) drive device (1 2 2) interface device (1 2 4) combined with convex column 200523663 (1 2 5) current sensor (1 3) adjustment device (131) aperture plate ( 132) Combined sleeve (133) Overlap (134) Long arm (135) Notch (136) Long guide hole (1 3 7) Positioning guide hole (1 4) Outer cover (1 4 1) Outer perforation (2 0) lens barrel

Claims (1)

200523663 Pick up and apply for a patent garden: 1. A modular, steplessly adjustable aperture device, which includes a body, which has a receiving space, a combination seat, and a place different from the combination seat and runs through the body An aperture device; an adjustment device is slidably disposed in the body accommodation space, the adjustment device includes two aperture plates slidingly moved relative to each other; and a driving device is disposed in the combining base and includes a motor having a Hall element An interface device for providing the power of the motor and a driving rod actuated and rotated by the motor, wherein the driving rod is combined with the two diaphragms, and the Hall element controls the motor to link the driving rod to continuously The ground adjustment controls the two aperture plates to move relative to each other to achieve stepless aperture adjustment. 2. The modular stepless-adjustable iris at home as described in item 1 of the scope of the patent application has a cover on the body to close the accommodating space. The distant cover has a distance from the iris. An outer perforation of the hole. 3 · The modular stepless aperture device according to item 1 of the scope of the patent application, wherein the driving rod has a plurality of coupling protrusions that pass through the two aperture plates and are connected to the two apertures when the motor rotates The movement of the film coincides with Kaixin. 4 · The modular stepless iris device according to item 3 of the scope of the patent application, wherein the body has a plurality of guide holes, which provide the combined protrusions to pass through and slide in the body; and A plurality of positioning protrusions are provided, which pass through the two aperture plates and cooperate with the linkage action of the driving rod to provide the two aperture plates to slide therein and simultaneously limit the sliding range of the two aperture plates. 12 200523663. The modular stepless iris device described in item 3 of the declared patent scope, wherein the two aperture plates have a plurality of long guide holes and a plurality of coupling sleeves, wherein the coupling sleeves are used to penetrate The long guide holes and the guide holes are combined with the coupling protrusions such as "Hai, so that the two aperture plates are positioned on the coupling protrusions', and are generated by the interaction of the motor and the coupling protrusions. Relatively moved from; and, the two aperture plates are respectively provided with a plurality of positioning guide holes to slide through the positioning protrusions, so that the two aperture plates can slide back and forth within the body. The modular steplessly adjusting aperture device described in the first item of the patent scope is declared, wherein the two aperture plates are of a <font shape. 7. The modularized steplessly adjustable type described in the first item of the patent scope Aperture device, in which the motor is a stepper motor. 8. The modular stepless adjustment type iris device described in item i of the patent scope 'wherein' the motor is provided with the Hall element [ Hall E ^ ent]-current sensor for controlling A motor rotatably Pick up, schema: as next page 13