TW200411317A - Single-focus lens module - Google Patents

Abstract

The present invention relates to a single-focus lens module, which comprises an imaging lens structure with a mechanical shutter sequentially including a pre-shutter module, an imaging lens and a lens base from the object side to image side. The imaging lens is coupled to the lens base by a screws structure. The pre-shutter module is connected to the imaging lens. In assembling, the screws structure is used to adjust the focus of the imaging lens to a suitable position, and then the shutter module is installed. Accordingly, it is able to simplify the structure of single-focus lens module, enhance the overall installation precision , and thus increase the overall quality and the precision level of image capturing function.

Description

200411317 V. Description of the invention (1) [Technical field to which the invention belongs] The single-focus lens of the month series and digital photographic equipment is marked with M. Don't refer to a single-focus lens module. The head and related, especially [prior art] Mould households: It is known that the single digital point used in traditional digital cameras is on the head V, which is arranged from the object side to the image side, in order (including the focusing mechanism; (3) Electronic image acquisition pieces :: 2 pieces of mirrors. · The pieces can be C c D or c M0s; due to the door: 'photosensitive element transmission and current transmission structure, the master emperor' 1 has to go through machinery The display direction must be fixed. It is necessary to use the beneficial method to # § Bai Tu Hong Li… Rotate the optical axis of the lens arbitrarily. Therefore, in order to correctly place the image position on the photosensitive element during the deployment, you need to use the mirror. On the base assembly, there is a focusing mechanism that can make the imaging lens not move; ^ ^ forward and backward; however, the practice has to be green ..- ^ ^ M & Only, this structure has the following disadvantages ...

1 ", mechanism, in order for the lens to move forward and backward smoothly, each component must be provided with a gap, so that the accumulated geometric error between the imaging lens and the photosensitive element, from the imaging lens to the photosensitive element, the J used The more structural components, the more serious the geometric error, so that the optical axis of the lens is not kept vertical between the optical elements, and the imaging surface is inclined. ^ "2 · The mechanical shutter body is placed in the imaging lens, so that the Assembly 'needs to be assembled on both sides of the shutter, and it is not easy to maintain the consistency of the optical axis during manufacture, thereby reducing the resolution of the picture. 3 · The mechanical shutter body is placed in the image taking lens. Due to the mechanical shutter body, an actuating structure is needed. To avoid the actuating structure and the focusing mechanism, 200411317 V. Description of the invention (2) ΐΐ :::: "Design" usually Placing the actuating structure at the aperture position [Inventive content; the thickness of the early focus lens module is increased. The head mold ί, Zhong Qiyu wants these two inventions if the purpose is to provide-a kind of single focus lens-the former name of the lens) The aperture position of the imaging lens is placed in two separate: m to separate the mechanical shutter from the imaging lens, so you can use u: to separate the imaging lens from the shutter body, use rotation ^ ΐ to directly combine the imaging lens with the lens holder, and (三 Γίΐ! Focus in head mode, omitting redundant parts of the focusing mechanism; and; keep fast; the door body is directly attached to the imaging lens, and at the same time, the shutter lens jealous two directions' will not change due to the focusing process = Circle distance, which is not caused by the focusing process, can improve assembly accuracy and improve overall image quality. Video product ΞΞ3 lens module 'achieves good early focus lens It still needs to have the following characteristics: —The focal length of 1 lens is less than 15mm: because the imaging lens is short, the focal length of the lens must be small to obtain a sufficient depth of field / during spiritual use, the focusing action can be avoided. Yes!:, " The actuation structure of ii is behind the shutter blades: this is the space of the early focus lens module, which achieves lightness and shortness. The front surface of the distance cone? two-door mold 1! and the front surface of the imaging lens barrel, = less than 2.0, This can prevent the light transmission opening of the shutter element from being too large, resulting in a longer stroke of the shutter blade and a decrease in speed. 4. The bottom of the actuating structure of the shutter module, and the front surface of the shutter body, 200411317

Door module actuating structure and electronic V. Description of the invention (3) The distance is less than 12 m. · This can avoid the interference between the snap-in image assembly and the lens holder. The shutter blade plus 0 shutter module can: This can simplify the use of electromagnetic coil shutter braking action, control the lever, push to increase the shutter speed 6 · Shutter module, the distance is less than 1mm: This can make the shutter ,,, The aperture position of the 1-point lens module increases the shutter speed, and at the same time, the movement distance of the blades can be reduced, so that at the aperture, the edge of the image field will not be produced to make the single focus lens module small. The light-shielding ’relative brightness will not abrupt suddenly. 7 · The lens holder and the electronic image pickup lens are connected to the electronic image pickup module. This can reduce the imaging. The bureau enables the inspectors to more + enumerate the following preferred embodiments; with reference to Figure 2 to understand the present invention-the first drawing is a better-as in the following "of which: the second drawing is another : "View. The third picture is a better one for this creation; a cross-sectional view. Please refer to the first picture shown in the first; the two; two two two views. The single focus lens module (丄 〇), X 八 ^ 佳 only The structure of the lens group nominated in the embodiment is from the object side to the image side. 3 A mechanical shutter is formed ^ 200411317 V. Description of the invention (4)) and a shutter body (2 2), the shutter actuation structure (2 1) includes an electromagnetic coil (211) and a lever (212) for controlling the front shutter module; the shutter body (2 2) includes an upper cover (2 2 2) and a shutter blade ( 2 2 3), a fixed blade (2 2 4), and a bottom plate (225), and the shutter body (22) is overlapped with the imaging lens (30) (Taking Lens); the shutter actuation structure (2 1) is located at After the shutter blade (2 2 3), the distance (a) between the front surface of the shutter module (20) and the front surface of the imaging lens (30) is less than 2.0 mm,

And the distance (B) between the rear end of the shutter actuation structure (2 1) and the front surface of the shutter body (2 2) is less than 12 mm; the shutter actuation structure (2 1) is formed by the electromagnetic coil (2 1 1 ) Control the lever (2 1 2) to move the shutter blade (223); and the distance (C) between the shutter blade (223) and the aperture formed by the single focus lens module (10) is less than 1 mm. The imaging lens (30) includes a lens barrel (31) and a lens group (32), an aperture (33) of the imaging lens (30) is located in the lens (32), and the The imaging lens (30) uses the combination of "", ", and the lens holder (40), and the focal length formed at the same time is less than 丨 5.

♦ The lens holder (40) is overlapped with an electronic imaging component (50), such as a charge-coupled device (CCD), and the lens holder (30) uses a spiral Pattern sets of mouth. Next, referring to the second figure, the… point lens module (60) provided by the second preferred embodiment of this creation is arranged in order from the object side to the image side.

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V. Description of the invention (5): front shutter module (6 1), an imaging lens (6 2), and a mirror f (6 3). Because these components and the single focus lens module of the first preferred embodiment The components of the group are almost similar, which will not be described in detail here, and the difference is that the front shutter module (6 1) is provided with two actuation structures (6 i 1) (612), and the two Dynamic structure (611) (612) = each is formed by an electromagnetic coil (6 i 4) and a lever (6 i 5), and the Shaanmen actuated structure (6 1 1) controls the front shutter mode Group 6 1), and the shutter actuation structure (6 丄 2) makes the size aperture switching action of the front shutter module (6 1),

The third embodiment of the present invention is shown in the third figure, that is, a single focus lens group (70), the composition from the object side to the imaging side is arranged in order: the front shutter module (川,-imaging lens ( 7 2) and a mirror (7 3); the single focus lens module (70) is composed of a fixed blade of an aperture (7 shutter module, and is located in the first lens (7-7, and the imaging lens ( 7 2) The thread is combined with the lens holder (3), and the focal length formed at the same time is less than 15_. The characteristics and obvious improvements of the lens modules of the above preferred embodiments 1 · When using the front shutter module, it is ready Yes; if it deviates from the single-focus lens to capture the image.

It can be summarized that the improvement effect of the single focus of the present invention can be summarized as follows: When the aperture is set, the center line of the lens module will not be affected as long as it is fitted with the lens group. Nesting method, which can adjust the focal length purely, can improve the accuracy, and then improve

200411317 V. Description of the invention (6) High overall quality, overall accuracy of assembly accuracy. To sum up, the single-focus lens module of the present invention can indeed solve the defects of the conventional manufacturing lens module technology. Therefore, the practicability and progress of the present invention are undoubted, and the related literature and information have not been checked. It was found that the similar invention was disclosed first, and the patent requirements of the invention should be sufficient. Now, in order to protect the rights and interests of the applicant, an application for an invention patent was filed in accordance with the law. Φ Page 10 200411317 Brief description of the drawings Brief description of the drawings: The first drawing is a combined sectional view of a preferred embodiment of the present invention. The second figure is a combined sectional view of another preferred embodiment of the present invention. The third figure is a combined sectional view of yet another preferred embodiment of the present invention. Description of main component symbols: Single focus lens module (1 0), dynamic structure (2 1), lever (2 1 2), upper cover (2 2 2), fixed blade (2 2 4), imaging lens (30), lens group ( 3 2) First lens (3 2 1) Electronic image pickup unit (50) Distance (A) Distance (C) Nly XJ 0) 23 2 12 2 (1 (2 groups of 2 body molds) Ring door leaf fast line shutter magnetically fast Nιϋg »&e; 1, a lens barrel (3 1) aperture (3 3) lens holder (4 0) distance (B) single focus lens module (6 0) dynamic structure (611) (612) Solenoid coil (6 1 4) Imaging lens (6 2) 6 Γ \ Group mode 0J F Quickly set front 5 3 Γ-Η CO 6 (C seatpost mirror dial

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Claims (1)

200411317 6. Scope of patent application 1 · A single focus lens module, which includes an imaging lens group structure including a mechanical shutter, which is arranged in order from the object side to the image side, and a front shutter # group of an imaging lens ( Taking Lens) and a lens holder; the imaging lens system has an aperture in front of the first lens, and the imaging lens is combined with the lens holder. 2 · According to the single-focus lens module described in item 1 of the scope of the patent application, the straight front shutter module is composed of the shutter body and the shutter actuation structure; the other is that the body and the imaging lens are overlapped. 3 · According to the single-focus lens module described in item 2 of the scope of the patent application, the shutter body in i includes a bottom plate, an upper cover, a shutter blade, and a fixed plate. Among them, the shutter actuation structure is located behind the shutter blade. 〇mra. At the same time, the distance from the surface of the shutter body to the front surface of the lens barrel of the imaging lens is less than 2.0 mma. 4 · According to the single-focus lens module described in item 2 of the patent application, the shutter module, wherein the distance between the rear end of the shutter actuation structure and the front of the shutter body is less than 12mm. '5 · The single focus lens module according to item 2 of the scope of the patent application, wherein the shutter actuation structure is controlled by an electromagnetic coil (s01 eno i d) to select a shutter blade in the movable shutter body. · "Dry for Push 6" According to the single-focus lens module described in item 1 of the scope of the patent application, and the distance between the shutter module and the aperture position of the single-focus lens module is 1 mm 0, 7 · According to the single-focus lens described in item 1 of the scope of the patent application, the lens holder is overlapped with an electronic image capturing and addressing device. … 8 8 · According to the single focus lens module described in item 1 of the scope of patent application, ^ y 'f Page 13 200411317 VI. Scope of patent application-2 ΐ 2 gate group contains two actuating structures to control the front fast 卩 1 module white: 2 ί and the aperture switching action, and should The two shutter actuation structures are each composed of an electromagnetic coil and a lever. # 1 ^ An electronic camera, which includes a single focus with a mechanical shutter = Kang =, and two and the arrangement from the surface of the electronic camera to the electronic photosensitive element, such as a shutter module, an imaging lens, and a lens mount; the imaging The lens ^ ^^ is located in front of the first lens, and the imaging lens is combined with the lens holder by using a thread, and the focal length formed at the same time is less than 15 mm. ^ 0 According to the single focus lens module described in item 9 of the scope of the patent application, the front door module is composed of a shutter body and a shutter actuation structure; the shutter body < 1 1 · According to the single-focus lens module i ^ described in the scope of the patent application, the shutter body includes a bottom plate, an upper cover, a shutter blade, and a solid leaf. The shutter actuation structure is located behind the shutter blade. At the same time, the distance from the surface of the shutter body to the front surface of the lens barrel of the imaging lens is less than 2. Definition 1 2. According to the single-focus lens module described in Item 1 of the patent application, the J-type shutter module, wherein the distance from the rear end of the shutter actuation structure to the shutter is less than 12mm. The surface is straight 1 3. According to the single focus lens module described in the patent application No. 丨 0, the shutter actuation structure is controlled by an electromagnetic coil (So 1 enoi d) to push the shutter blade in the shutter body. The cup is transmitted from the single-focus lens module described in item 9 of the scope of the patent application, and the distance from the shutter module to the aperture position of the single-focus lens module is transmitted to 1 mm. , Which is less than ', applied for patent scope one by one' ------------------ According to the single-focus lens model described in item 9 of the scope of the applied patent, the lens holder is related to an electronic imaging component. Lap. Among them, the single focus lens module described in item 9 of the scope of the patent application, which includes two actuating structures, which controls the front shutter module by itself-an electromagnetic coil and a lever. …each