TW200413830A - Method and mechanism for adjusting lens - Google Patents

Abstract

Method and mechanism for adjusting lens includes steps of: (a) providing a sensor-housing which has an Image Detected Sensor(IDS); (b) laying a translation-carrier and the lens on the sensor-housing; (c) adjusting the position and angle of the translation-carrier and sensor- housing according to the position of the IDS; (d) horizontally moving the translation-carrier for eliminating horizontal offset of the lens according to the IDS; (f) rotating the lens for eliminating incline of the lens according to the IDS. Thus, the axis of lens is aimed at the center of the IDS.

Description

200413830 V. Description of the invention (1) [Field of the invention] The present invention relates to a lens ultra-micro optical imaging product to adjust the axis 7 ^ fff ^ mechanism of a lens group, which is used for a method of adjustment, such as translation and rotation + Alignment of image sensor. It is suspected to adjust the axis of the mirror, the axis of the group and [Background of the Invention]: Dense: Optical J image production A, its composition generally includes image sensors, etc. In its manufacture, you I 4u, brother, and ^ The camera (such as CMOS, CCD) produces a sharp eye, in order to vertically align the axis of the image sensor group with the image of Λ image / 庑 / must ensure that the camera lens, sensor image sensor area (Image Detected Area) center. However, at present, it is difficult to ensure that the axis of the lens group is accurate in the digital camera system a λα + gura, 隹, 职, 仏, 本, and L. The eighth L is located at the center of the image sensor area of the image sensor. The reason why the system is not normally produced by a company: η: 峰 2 〇70 masterpieces, and image sensors such as CCD, CM0S, etc. will be mostly delivered after the production of the Japanese factory By straightening this division of labor system, Chengtai professional manufacturers have reduced their lamp packaging. At present, because CMOS and CCD are packaged, digital camera manufacturers often end up not accurately aligning the axis with the center of the optical component (Detected Area). & The image sensing area of the sensor (I mage Because the image sensor is being sealed, at present, in order to eliminate vertical errors. = method to adjust this error, the method * see the fifth figure ', section;:; Complete the lens to achieve this thread (picture 6) or screw and screw the younger brother 7 pictures, screw and screw "U seven pictures" ¾ two ways to adjust the mirror 200413830 5. Invention description (2) head. But with When adjusting in the way shown in Figure 7, each time you adjust an angle with a screwdriver, you need to wait for the spring (Figure 7) to push the lens to a stable state before you can determine whether it has been adjusted to the optimal position. When adjusting the display method, two screws must be adjusted at the same time. These two methods are quite inconvenient, and because of the need to add multiple parts, the design is complicated, the assembly is time-consuming and labor-intensive, and the space is wasted. In the design and assembly of general digital cameras, the deviation of the image sensor due to the packaging is not large (the horizontal offset is about 0.2 mm / vertical tilt is about 1 degree), and the image sensing Image sensing The area is very small (between 12 mm2 and 20 mm2). For the sake of cost control, because the lens group cannot be perpendicular to the sensor, the impact on the resulting image is mostly ignored. This It is one of the important reasons that the imaging quality of ordinary low-order cameras is inferior to that of mid-to-high-end cameras. In view of the shortcomings of the conventional techniques for correcting deviations disclosed above, the creators researched and proposed the present invention. [Objective of the Invention The main object of the present invention is to provide a lens ultra-fine adjustment method and mechanism for eliminating horizontal offset and vertical tilt, so that the lens group and the image sensing area of the image sensor can be aligned. Another object of the present invention is to provide A method for ultra-fine adjustment of a lens and a mechanism thereof, with simple adjustment and simple components, simplify production and assembly, thereby obtaining a clearer image, smaller volume, lighter weight, and lower cost.

[Features of the invention] The base of the mirror sensor provided by this Maoming, the base where the iron trimmer is located ;;, mimics the leveling and translation of the carrier and the shovel-s to eliminate the horizontal deviation according to the image warfare * mouth and the mirror master group Move and rotate 3 times so that the axis of the lens group is perpendicular to the rear, then the base, translation stage, and "" are provided on the assembly ;: The lens ultra-fine adjustment base provided by the present invention, the f sensor inside the image sensor base is set On the upper edge of the image sensor base stage, it can achieve the desired effect with a simple structure. The lens provided by the invention is easy to fine-tune, the volume and weight are reduced, and the cost is low. Description of the preferred embodiment] The image adjustment is tilted most. First of all, different from the lens, the image adjustment method of the level adjustment mirror is to move the stage sensor and the angle group, and the sensor group is convenient for each other. The whole mechanism includes a Image sensing and / lens parts are provided for a simple whole mechanism, and the components are particularly suitable for portable products. Provide a camera with a camera set at the angle and position of the image, and move the translation stage head The center of the inclination of the axis is fixed in a fixed manner, and an image sensor and a translation loader are placed in the translation operation combination and the adjustment is simple. The adjustment capacity is in the mobile phone camera. The technical content, structural characteristics, and the purpose and effect achieved are as follows: | and uu ^ ^, 1 ^ Examples are given in conjunction with illustrations, and ^ ^ is not intended to limit the present invention. The mouth 3 〇δ is placed on the upper edge of the shirt image sensor base, which is ^ 1 ^. The lens ultra-fine adjustment mechanism 100 of the present invention includes an image sensing base 10, which is ^ Μ β _ β 应 哭 9Π σ 1 〇 Shirt image sensor base 1 10 There is an image sensor inside the pan A 10

200413830

V. Description of the invention (4) and a lens group 40 is arranged on the translation stage 30, and the light passes from the outside through the lens group 40 and enters the image sensor 2 of the image sensor base 10, and the image sensor 2 0 Capture image. The lens ultra-fine adjustment method of the present invention first provides an image sensor base 10 with an image sensor 20, and then, a translation stage μ and a lens group 40 are placed on the base where the image sensor 20 is located. 〇, where the translation stage 30 can be placed first on the image sensor 20 where △%, 丞 σ 1 (J, the lens group 40 is placed on the translation stage 30, or the lens group can be placed first 40 is placed on the translation 30, and then the translation stage 30 is placed on the base 1 where the image sensor 20 is located. Above the angle i σ, the axis of the rotation system is set to make the center 0 In order to eliminate the straightness to the shadow, the first device 20 is flattened to make the base and 42, the image sense group 40, and then rotate the fingers to straighten the horizontal lens on the shadow lens group to adjust the horizontal polarization sensor first adjust the surface center table 10, Then cooperate with the different angles, positions and angles of the lens responder 20. Horizontally move the lens group 40 to adjust the X-axis γ axis of the mirror into a horizontal plane as the plane of the sensor 2 + axis more accurately perpendicular to the action Can also be performed at the same time, while moving to adjust the center of the lens group 20. Above adjustment lens group 40, Lens group, then adjust the translation stage 30, the lens ^ The first and second groups shown in Figure 40 are closest to the position of the translation stage 40, moving the translation head group axis of rotation, you can see the image, At 40, the action time is 40, the axis is 3, and the 3 is to cancel the 40. Each other, the lens 30 is adjusted to adjust the translation stage 30, the stage 30 to eliminate the tilt of the water center (here), and the lens group 40 is repeated. The above-mentioned adjustment of the actuator 20 in the plane of the adjustment of the translation stage 30 lens group 40 axis vertical order can also be changed, perpendicular to the image sensor in addition to horizontal offset. The most position is officially fixed. Group 40 has a lens 4 1 lens 41 Protruding downward

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200413830 V. Explanation of the invention (5) 丨 When the lens is as shown in the first figure, the translation stage 30 is a simple central through-air stage ... When the lens group 40 is closest to the translational movement A q & I々 冶 # 祌 Take the lens 41 that meets the front ten battle gate 30, which is a lens that is concave upwards. \ 'Panning stage 30, with a stage book 丨 your β seat award △, Kekou body 31 to Placed on the image sensing factory base σ 10 and a seat 32, extending from the platform body 31, I is extended upward for the lens group 40 'to be placed, and the lens is known as "η, π,„ < The placement of the lens group 40 can be relative to the translation load. The third picture is the relationship between the lens group 40 ′ and the image sensor 11 20. The position is: The different injuries of the adjustment mechanism or the lens group cannot be straight from the lens and the lens ^ ^^ The embodiment of the fourth figure shows the / D of the present invention, as shown in the second figure and a lens barrel 50 for the lens group 40 to be accommodated in = The ultra-fine adjustment mechanism (H). There is a base 52, which is formed on the barrel lens barrel 50. The base 52 includes a barrel 51 and a light transmitting hole 53 for removing the lens from the lens. In the middle of the base 52,器 ensor20. In addition to the lens barrel 50 accommodating the lens / obtained light, the image is transmitted on the translation stage 30. Similar to the first figure and = jo, the base 52 is placed in the shape of the lens, and the base 5 2 of the lens barrel 50 is shown in two directions, corresponding to the shape of the lens group 40 or concave upward (as shown in the fourth figure). ° The downward convex (as shown in the third picture) is strong and strong, the mirror support I is extended to the seat 32, (as shown in the fourth picture), and the translation stage 30 has a upwardly extending shape. As described above, the present invention

Ik thus limits those skilled in the art who are familiar with the present invention, and can make modifications or changes equivalent to ^ = and equivalent, i. I is in line with the requirements of the invention patent, so “covering according to law = adjustment method and its mechanism” is only a preferred embodiment of the present invention, and is applied. However, the scope of rights disclosed above. As for the present invention,

200413830 Brief description of the drawings [Brief description of the drawings] The first diagram is a diagram of the first embodiment of the lens ultra-fine adjustment mechanism of the present invention, and shows a sectional view after the combination is completed. The second figure is a diagram of another embodiment of the lens ultra-fine adjustment mechanism of the present invention, in which the translation stage has a seat extending upward. The third diagram is a diagram of still another embodiment of the lens ultra-fine adjustment mechanism of the present invention, in which the lens group is accommodated inside the lens barrel. The fourth diagram is a diagram of another embodiment of the lens ultra-fine adjustment mechanism of the present invention, which is similar to the third diagram, and the translation stage has a seat extending upward.

The fifth diagram is a schematic diagram of currently known technologies. The sixth diagram is a partial cross-sectional view of FIG. 5 showing the technical details of the adjustment mechanism shown in the fifth diagram. The seventh diagram is a schematic diagram of an adjustment mechanism equivalent to the mechanism shown in the sixth diagram. [Description of component symbols]

Lens ultra-fine adjustment mechanism 100 Image sensor base 10 Image sensor 20 Translation stage 30 ^ 30 Translation stage body 3 Γ Translation stage mount 32? Lens group 40, 40 lens 4 41 lens 42 > 42

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Claims (1)

200413830 VI. Application Patent Scope 1. A lens ultra-fine adjustment method, which includes the following steps: a. Provide an image sensor base with an image sensor; b. Place the translation stage and lens group on the image sensor On the base; c. Adjust the position and angle of the translation stage and lens group according to different angles and positions of the image sensor, and move the translation stage horizontally to eliminate the horizontal offset. 'Rotate the lens group to adjust the lens group axis And tilt it so that the axis of the lens group is perpendicular to the center of the image sensor plane; and d so that the position of the image sensor base, translation stage, and lens group are fixed to each other. If Shen Ping transfers to the base 3 · If Shen Ping transfers to the shift 4 · Rushen adjusts to 5 · Rushen adjusts to the stage to eliminate the axis 6. Russian adjusts to eliminate the eyes on the patent platform and lens stage, and then The patent fan platform and the lens carrier are placed in the patent model translation, the patent model translation is carried in addition to the horizontal eccentricity perpendicular to the patent model translation, and the lens tilt adjustment method described in item 1 of the vertical tilt circle is included. The placement is to first place the translation stage on the image sensor and place the lens group on the translation stage. The method for ultra-fine adjustment of the lens described in item 1 above, wherein the group placement is to first place the lens group on a translation stage ', and then to the base on which the image sensor is located. For the lens ultra-fine adjustment method described in item 1, the positions and angles of the basin stage and lens group can be performed simultaneously. The method of ultra-fine adjustment of the lens described in item 1 of the sibling, the position and angle of the middle i and the hoe f are adjusted first by the translation load: the image group to eliminate vertical tilt, so that the stage and lens group, and then adjust the The camera was first trimmed and the lens group was 200413830. 6. The scope of the patent application made the lens group axis perpendicular to the center of the image sensor. 7. —A lens ultra-fine adjustment mechanism includes an image sensor base, an image sensor is arranged inside the image sensor base, a translation stage is arranged on the upper edge of the image sensor base, and a lens group is arranged On the translation stage, the light enters the image sensor of the image sensor base from the outside through the lens group, and captures the image with the image sensor. 8. The lens ultra-fine adjustment mechanism as described in item 7 of the scope of patent application, wherein the lens closest to the translation stage is a lens protruding downward, and the translation stage is a stage with a simple central hollow. 9. The lens ultra-fine adjustment mechanism as described in item 7 of the scope of patent application, wherein the lens closest to the translation stage is a lens that is concave upward, and the translation stage has a stage body to be placed on the image sensor. The base of the device and a base extend upward from the base body for the lens group. 10. The lens ultra-fine adjustment mechanism according to item 7 of the scope of the patent application, further comprising a lens barrel, which includes a barrel body and a base, formed at the bottom of the barrel body, and has a light transmitting hole in the middle of the base, The lens barrel accommodates the lens group inside. Page 14