TWI792582B - Lens focusing system, lens focusing method and chart display structure - Google Patents
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本發明涉及一種對焦系統、對焦方法以及顯示結構,特別是涉及一種鏡頭對焦系統、鏡頭對焦方法以及圖表顯示結構。The invention relates to a focusing system, a focusing method and a display structure, in particular to a lens focusing system, a lens focusing method and a chart display structure.
現有技術中,影像擷取模組包括一鏡頭支架以及一鏡頭組件,並且鏡頭組件需要預先進行對焦後才能被固定在鏡頭支架上。然而,現有技術的鏡頭組件的對焦系統與對焦方法仍然具有可改善空間。In the prior art, the image capture module includes a lens bracket and a lens assembly, and the lens assembly needs to be focused before being fixed on the lens bracket. However, the focusing system and focusing method of the lens assembly in the prior art still have room for improvement.
本發明所要解決的技術問題在於,針對現有技術的不足提供一種鏡頭對焦系統、鏡頭對焦方法以及圖表顯示結構。The technical problem to be solved by the present invention is to provide a lens focusing system, a lens focusing method, and a graph display structure in view of the deficiencies in the prior art.
為了解決上述的技術問題,本發明所採用的其中一技術方案是提供一種鏡頭對焦系統,其包括:一待測物件承載裝置、一鏡頭位置預判裝置以及一鏡頭位置調整裝置。待測物件承載裝置用於承載一影像擷取模組,且影像擷取模組包括一鏡頭支架、可活動地設置在鏡頭支架上的一鏡頭結構以及對應於鏡頭結構的一影像感測晶片。鏡頭位置預判裝置包括一圖表顯示結構。鏡頭位置調整裝置用於可旋轉地調整鏡頭結構相距於影像感測晶片的距離。其中,圖表顯示結構包括彼此分離的一第一實體圖表以及一第二實體圖表,且第一實體圖表的一第一實體參考點與第二實體圖表的一第二實體參考點兩者相距一實體量測距離。其中,當影像感測晶片配合鏡頭結構以擷取圖表顯示結構的第一實體圖表與第二實體圖表兩者後而取得一圖表影像資訊時,圖表影像資訊用於提供對應於第一實體圖表的一第一影像圖表以及對應於第二實體圖表的一第二影像圖表,且第一影像圖表的一第一影像參考點與第二影像圖表的一第二影像參考點兩者相距一影像量測距離。其中,當影像感測晶片配合鏡頭結構所取得的影像量測距離大於實體量測距離時,由於鏡頭結構的一光學中心點相距於影像感測晶片的一實際距離大於鏡頭結構的一鏡頭焦距,所以鏡頭結構透過鏡頭位置調整裝置的旋轉調整,以使得鏡頭結構漸漸朝向接近影像感測晶片的方向移動,直到鏡頭結構的光學中心點相距於影像感測晶片的實際距離等於鏡頭結構的鏡頭焦距。其中,當影像感測晶片配合鏡頭結構所取得的影像量測距離小於實體量測距離時,由於鏡頭結構的光學中心點相距於影像感測晶片的實際距離小於鏡頭結構的鏡頭焦距,所以鏡頭結構透過鏡頭位置調整裝置的旋轉調整,以使得鏡頭結構漸漸朝向遠離影像感測晶片的方向移動,直到鏡頭結構的光學中心點相距於影像感測晶片的實際距離等於鏡頭結構的鏡頭焦距。In order to solve the above-mentioned technical problems, one of the technical solutions adopted by the present invention is to provide a lens focusing system, which includes: an object-under-test carrying device, a lens position predicting device, and a lens position adjusting device. The object carrying device to be tested is used to carry an image capture module, and the image capture module includes a lens bracket, a lens structure movably arranged on the lens bracket, and an image sensing chip corresponding to the lens structure. The lens position prediction device includes a graph display structure. The lens position adjusting device is used for rotatably adjusting the distance between the lens structure and the image sensing chip. Wherein, the diagram display structure includes a first entity diagram and a second entity diagram separated from each other, and a first entity reference point of the first entity diagram and a second entity reference point of the second entity diagram are separated by an entity Measure distance. Wherein, when the image sensing chip cooperates with the lens structure to capture both the first entity graph and the second entity graph of the graph display structure to obtain a graph image information, the graph image information is used to provide information corresponding to the first entity graph A first image graph and a second image graph corresponding to the second entity graph, and a first image reference point of the first image graph and a second image reference point of the second image graph are separated by an image measure distance. Wherein, when the image measurement distance obtained by the image sensor chip with the lens structure is greater than the physical measurement distance, since an actual distance between an optical center point of the lens structure and the image sensor chip is greater than a lens focal length of the lens structure, Therefore, the lens structure is adjusted through the rotation of the lens position adjustment device, so that the lens structure gradually moves towards the direction of the image sensor chip until the actual distance between the optical center point of the lens structure and the image sensor chip is equal to the lens focal length of the lens structure. Wherein, when the image measurement distance obtained by the image sensing chip with the lens structure is smaller than the physical measurement distance, since the actual distance between the optical center point of the lens structure and the image sensing chip is smaller than the lens focal length of the lens structure, the lens structure Through the rotation adjustment of the lens position adjustment device, the lens structure gradually moves away from the image sensor chip until the actual distance between the optical center of the lens structure and the image sensor chip is equal to the lens focal length of the lens structure.
為了解決上述的技術問題,本發明所採用的另外一技術方案是提供一種鏡頭對焦方法,其包括:提供一圖表顯示結構,圖表顯示結構包括彼此分離的一第一實體圖表以及一第二實體圖表,第一實體圖表的一第一實體參考點與第二實體圖表的一第二實體參考點兩者相距一實體量測距離;透過一影像感測晶片配合一鏡頭結構以擷取圖表顯示結構的第一實體圖表與第二實體圖表兩者後而取得一圖表影像資訊,圖表影像資訊用於提供對應於第一實體圖表的一第一影像圖表以及對應於第二實體圖表的一第二影像圖表,且第一影像圖表的一第一影像參考點與第二影像圖表的一第二影像參考點兩者相距一影像量測距離;以及,依據實體量測距離與影像量測距離的比較,將鏡頭結構漸漸朝向接近或者遠離影像感測晶片的方向移動,直到鏡頭結構的一光學中心點相距於影像感測晶片的一實際距離等於鏡頭結構的一鏡頭焦距。其中,當影像感測晶片配合鏡頭結構所取得的影像量測距離大於實體量測距離時,由於鏡頭結構的光學中心點相距於影像感測晶片的實際距離大於鏡頭結構的鏡頭焦距,所以鏡頭結構透過旋轉調整,以使得鏡頭結構漸漸朝向接近影像感測晶片的方向移動,直到鏡頭結構的光學中心點相距於影像感測晶片的實際距離等於鏡頭結構的鏡頭焦距。其中,當影像感測晶片配合鏡頭結構所取得的影像量測距離小於實體量測距離時,由於鏡頭結構的光學中心點相距於影像感測晶片的實際距離小於鏡頭結構的鏡頭焦距,所以鏡頭結構透過旋轉調整,以使得鏡頭結構漸漸朝向遠離影像感測晶片的方向移動,直到鏡頭結構的光學中心點相距於影像感測晶片的實際距離等於鏡頭結構的鏡頭焦距。In order to solve the above technical problems, another technical solution adopted by the present invention is to provide a lens focusing method, which includes: providing a graph display structure, the graph display structure includes a first entity graph and a second entity graph that are separated from each other , a physical measurement distance between a first physical reference point of the first physical graph and a second physical reference point of the second physical graph; through an image sensing chip and a lens structure to capture the graph display structure A chart image information is obtained after both the first entity chart and the second entity chart, and the chart image information is used to provide a first image chart corresponding to the first entity chart and a second image chart corresponding to the second entity chart , and a first image reference point of the first image graph and a second image reference point of the second image graph are separated by an image measurement distance; and, according to the comparison of the physical measurement distance and the image measurement distance, the The lens structure gradually moves toward or away from the image sensing chip until an actual distance between an optical center of the lens structure and the image sensing chip is equal to a lens focal length of the lens structure. Wherein, when the image measurement distance obtained by the image sensor chip with the lens structure is greater than the physical measurement distance, since the actual distance between the optical center point of the lens structure and the image sensor chip is greater than the lens focal length of the lens structure, the lens structure Through the rotation adjustment, the lens structure gradually moves toward the image sensing chip until the actual distance between the optical center of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure. Wherein, when the image measurement distance obtained by the image sensing chip with the lens structure is smaller than the physical measurement distance, since the actual distance between the optical center point of the lens structure and the image sensing chip is smaller than the lens focal length of the lens structure, the lens structure Through rotation adjustment, the lens structure gradually moves away from the image sensor chip until the actual distance between the optical center of the lens structure and the image sensor chip is equal to the lens focal length of the lens structure.
為了解決上述的技術問題,本發明所採用的另外再一技術方案是提供一種圖表顯示結構,其包括一無圖表底層、一第一實體圖表以及一第二實體圖表,且第一實體圖表與第二實體圖表設置在無圖表底層上,以使得第一實體圖表的周圍、第二實體圖表的周圍以及第一實體圖表與第二實體圖表兩者之間沒有任何的圖表。In order to solve the above-mentioned technical problems, another technical solution adopted by the present invention is to provide a graph display structure, which includes a bottom layer without graph, a first entity graph and a second entity graph, and the first entity graph and the second entity graph The second entity graph is disposed on the graph-free bottom layer such that there are no graphs around the first entity graph, around the second entity graph, and between the first entity graph and the second entity graph.
本發明的其中一有益效果在於,本發明所提供的一種鏡頭對焦系統,其能通過“待測物件承載裝置用於承載一影像擷取模組,且影像擷取模組包括一鏡頭支架、可活動地設置在鏡頭支架上的一鏡頭結構以及對應於鏡頭結構的一影像感測晶片”、“鏡頭位置預判裝置包括一圖表顯示結構,且圖表顯示結構包括彼此分離的一第一實體圖表以及一第二實體圖表,且第一實體圖表的一第一實體參考點與第二實體圖表的一第二實體參考點兩者相距一實體量測距離”以及“鏡頭位置調整裝置用於可旋轉地調整鏡頭結構相距於影像感測晶片的距離”的技術方案,以使得當影像感測晶片配合鏡頭結構所取得的影像量測距離大於實體量測距離時,鏡頭結構可以透過鏡頭位置調整裝置的旋轉調整,以使得鏡頭結構漸漸朝向接近影像感測晶片的方向移動,並且當影像感測晶片配合鏡頭結構所取得的影像量測距離小於實體量測距離時,鏡頭結構可以透過鏡頭位置調整裝置的旋轉調整,以使得鏡頭結構漸漸朝向遠離影像感測晶片的方向移動。One of the beneficial effects of the present invention is that a lens focusing system provided by the present invention can be used to carry an image capture module through the "object-under-test carrying device, and the image capture module includes a lens bracket, which can A lens structure that is movably arranged on the lens holder and an image sensing chip corresponding to the lens structure", "the lens position prediction device includes a graph display structure, and the graph display structure includes a first entity graph separated from each other and a second physical graph, and a first physical reference point of the first physical graph and a second physical reference point of the second physical graph are separated by a physical measurement distance" and "the lens position adjustment device is used to rotatably Adjusting the distance between the lens structure and the image sensor chip” so that when the image measurement distance obtained by the image sensor chip with the lens structure is greater than the physical measurement distance, the lens structure can be adjusted through the rotation of the lens position adjustment device Adjust so that the lens structure gradually moves towards the direction of the image sensor chip, and when the image measurement distance obtained by the image sensor chip with the lens structure is smaller than the physical measurement distance, the lens structure can be adjusted through the rotation of the lens position adjustment device Adjust, so that the lens structure gradually moves away from the image sensing chip.
本發明的另外一有益效果在於,本發明所提供的一種鏡頭對焦方法,其能通過“提供一圖表顯示結構,圖表顯示結構包括彼此分離的一第一實體圖表以及一第二實體圖表,第一實體圖表的一第一實體參考點與第二實體圖表的一第二實體參考點兩者相距一實體量測距離”、“透過一影像感測晶片配合一鏡頭結構以擷取圖表顯示結構的第一實體圖表與第二實體圖表兩者後而取得一圖表影像資訊,圖表影像資訊用於提供對應於第一實體圖表的一第一影像圖表以及對應於第二實體圖表的一第二影像圖表,且第一影像圖表的一第一影像參考點與第二影像圖表的一第二影像參考點兩者相距一影像量測距離”以及“依據實體量測距離與影像量測距離的比較,將鏡頭結構漸漸朝向接近或者遠離影像感測晶片的方向移動,直到鏡頭結構的一光學中心點相距於影像感測晶片的一實際距離等於鏡頭結構的一鏡頭焦距”的技術方案,以使得當影像感測晶片配合鏡頭結構所取得的影像量測距離大於實體量測距離時,鏡頭結構可以透過鏡頭位置調整裝置的旋轉調整,以使得鏡頭結構漸漸朝向接近影像感測晶片的方向移動,並且當影像感測晶片配合鏡頭結構所取得的影像量測距離小於實體量測距離時,鏡頭結構可以透過鏡頭位置調整裝置的旋轉調整,以使得鏡頭結構漸漸朝向遠離影像感測晶片的方向移動。Another beneficial effect of the present invention is that a lens focusing method provided by the present invention can pass through "providing a graph display structure, the graph display structure includes a first entity graph and a second entity graph separated from each other, the first A physical measurement distance between a first physical reference point of the physical chart and a second physical reference point of the second physical chart”, “capturing the second physical chart display structure through an image sensing chip and a lens structure After a physical graph and a second physical graph, a graph image information is obtained, and the graph image information is used to provide a first image graph corresponding to the first entity graph and a second image graph corresponding to the second entity graph, And a first image reference point of the first image chart and a second image reference point of the second image chart are separated by an image measurement distance" and "according to the comparison between the physical measurement distance and the image measurement distance, the lens The structure gradually moves toward or away from the image sensor chip until the actual distance between an optical center point of the lens structure and the image sensor chip is equal to a lens focal length of the lens structure", so that when the image sensor When the image measurement distance obtained by the chip with the lens structure is greater than the physical measurement distance, the lens structure can be adjusted through the rotation of the lens position adjustment device, so that the lens structure gradually moves towards the direction close to the image sensing chip, and when the image sensing When the image measurement distance acquired by the chip with the lens structure is smaller than the physical measurement distance, the lens structure can be adjusted through the rotation of the lens position adjustment device, so that the lens structure gradually moves away from the image sensing chip.
本發明的另外再一有益效果在於,本發明所提供的一種圖表顯示結構,其能通過“第一實體圖表與第二實體圖表設置在無圖表底層上,以使得第一實體圖表的周圍、第二實體圖表的周圍以及第一實體圖表與第二實體圖表兩者之間沒有任何的圖表”的技術方案,以使得圖表顯示結構可以被應用於本發明所提供的鏡頭對焦系統以及鏡頭對焦方法。Another beneficial effect of the present invention is that a graph display structure provided by the present invention can be set on the bottom layer without graphs by "the first entity graph and the second entity graph, so that the surroundings of the first entity graph, the second entity graph There is no chart around the second entity chart and between the first entity chart and the second entity chart, so that the chart display structure can be applied to the lens focusing system and lens focusing method provided by the present invention.
為使能進一步瞭解本發明的特徵及技術內容,請參閱以下有關本發明的詳細說明與圖式,然而所提供的圖式僅用於提供參考與說明,並非用來對本發明加以限制。In order to further understand the features and technical content of the present invention, please refer to the following detailed description and drawings related to the present invention. However, the provided drawings are only for reference and description, and are not intended to limit the present invention.
以下是通過特定的具體實施例來說明本發明所公開有關“鏡頭對焦系統、鏡頭對焦方法以及圖表顯示結構”的實施方式,本領域技術人員可由本說明書所公開的內容瞭解本發明的優點與效果。本發明可通過其他不同的具體實施例加以實行或應用,本說明書中的各項細節也可基於不同觀點與應用,在不背離本發明的構思下進行各種修改與變更。另外,需事先聲明的是,本發明的圖式僅為簡單示意說明,並非依實際尺寸的描繪。以下的實施方式將進一步詳細說明本發明的相關技術內容,但所公開的內容並非用以限制本發明的保護範圍。另外,本文中所使用的術語“或”,應視實際情況可能包括相關聯的列出項目中的任一個或者多個的組合。The following is a description of the implementation of the "lens focusing system, lens focusing method, and chart display structure" disclosed by the present invention through specific specific examples. Those skilled in the art can understand the advantages and effects of the present invention from the content disclosed in this specification . The present invention can be implemented or applied through other different specific embodiments, and various modifications and changes can be made to the details in this specification based on different viewpoints and applications without departing from the concept of the present invention. In addition, it should be stated in advance that the drawings of the present invention are only schematic illustrations, and are not drawn according to actual dimensions. The following embodiments will further describe the relevant technical content of the present invention in detail, but the disclosed content is not intended to limit the protection scope of the present invention. In addition, the term "or" used herein may include any one or a combination of more of the associated listed items depending on the actual situation.
[第一實施例][first embodiment]
參閱圖1至圖14所示,本發明第一實施例提供一種鏡頭對焦系統S,其包括:一待測物件承載裝置1、一鏡頭位置預判裝置2以及一鏡頭位置調整裝置3。Referring to FIGS. 1 to 14 , the first embodiment of the present invention provides a lens focusing system S, which includes: an object-under-test carrying device 1 , a lens
首先,配合圖1與圖2所示,待測物件承載裝置1可以用於承載一影像擷取模組M,並且影像擷取模組M至少可以包括一鏡頭支架M1、可活動地設置在鏡頭支架M1上的一鏡頭結構M2(或是鏡頭組件)以及對應於鏡頭結構M2的一影像感測晶片M3。另外,鏡頭位置預判裝置2包括一圖表顯示結構20,並且鏡頭位置調整裝置3可以用於可旋轉地調整鏡頭結構M2相距於影像感測晶片M3的距離。舉例來說,待測物件承載裝置1可以是任何可用於定位或者固定影像擷取模組M的固定裝置或者夾持裝置,鏡頭結構M2可以包括可活動地設置在鏡頭支架M1內部的一保護殼體以及設置在保護殼體內的至少一鏡片(或者由多個鏡片所組成的一鏡片組),並且影像感測晶片M3可以是電荷耦合器件(Charge-coupled Device,CCD)或者互補式金屬氧化物半導體(Complementary Metal-Oxide-Semiconductor,CMOS)感測器。另外,鏡頭位置預判裝置2可以包括電性連接於影像感測晶片M3的一訊號控制模組以及用於承載圖表顯示結構20的一圖表承載模組。此外,鏡頭位置調整裝置3可以包括用於夾持鏡頭結構M2的一夾持機構以及用於帶動夾持機構旋轉的一驅動馬達,並且鏡頭位置調整裝置3可以透過夾持機構以及驅動馬達的相互配合,以夾持鏡頭結構M2且帶動鏡頭結構M2相對於影像感測晶片M3進行順時針或者逆時針旋轉。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。First, as shown in FIG. 1 and FIG. 2 , the object-under-test carrying device 1 can be used to carry an image capture module M, and the image capture module M can at least include a lens bracket M1, which can be movably arranged on the lens A lens structure M2 (or lens assembly) on the bracket M1 and an image sensor chip M3 corresponding to the lens structure M2. In addition, the lens
更進一步來說,配合圖3、圖4與圖5所示,圖表顯示結構20包括彼此分離的一第一實體圖表201(或是第一實體圖案)以及一第二實體圖表202(或是第二實體圖案),並且第一實體圖表201的一第一實體參考點201P與第二實體圖表202的一第二實體參考點202P兩者相距一實體量測距離D1。舉例來說,如圖3所示,圖表顯示結構20包括一無圖表底層200(也就是空白而沒有任何圖案的區域),並且第一實體圖表201與第二實體圖表202設置在無圖表底層200上,以使得第一實體圖表201的周圍、第二實體圖表202的周圍以及第一實體圖表201與第二實體圖表202兩者之間沒有任何的圖表(也就是說,圖表顯示結構20所提供的圖表只有第一實體圖表201與第二實體圖表201,而除了第一實體圖表201與第二實體圖表201之外的其餘區域都是空白而無圖案)。再者,配合圖4與圖5所示,第一實體圖表201具有多個第一黑色區域201B以及多個第一白色區域201W,並且第二實體圖表202具有多個第二黑色區域202B以及多個第二白色區域202W。另外,第一實體圖表201的第一黑色區域201B與第二實體圖表202的第二黑色區域202B的面積大小(或者形狀大小)可以是相同或者相異,並且第一實體圖表201的第一白色區域201W與第二實體圖表202的第二白色區域202W的面積大小(或者形狀大小)可以是相同或者相異。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。Furthermore, as shown in FIG. 3 , FIG. 4 and FIG. 5 , the
值得注意的是,舉例來說,配合圖3、圖4與圖5所示,第一實體圖表201的第一實體參考點201P可以是一第一實體中心點2011、一第一實體最左點2012、一第一實體最右點2013或者其它任意的點,並且第二實體圖表202的第二實體參考點202P可以是一第二實體中心點2021、一第二實體最左點2022、一第二實體最右點2023或者其它任意的點。再者,第一實體圖表201的第一實體參考點201P與第二實體圖表202的第二實體參考點202P兩者之間的實體量測距離D1可以是“第一實體圖表201的第一實體中心點2011、第一實體最左點2012以及第一實體最右點2013三者其中之一”相距“第二實體圖表202的第二實體中心點2021、第二實體最左點2022或者第二實體最右點2023三者其中之一”的距離(例如,圖3所顯示的實體量測距離D1為:第一實體圖表201的第一實體中心點2011與第二實體圖表202的第二實體中心點2021兩者之間的距離)。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。It should be noted that, for example, as shown in FIG. 3 , FIG. 4 and FIG. 5 , the first
再者,配合圖1、圖3、圖6與圖7所示,當影像感測晶片M3配合鏡頭結構M2以擷取圖表顯示結構20的第一實體圖表201與第二實體圖表202兩者後而取得一圖表影像資訊21時,圖表影像資訊21可以用於提供對應於第一實體圖表201的一第一影像圖表211(或是第一虛擬圖表)以及對應於第二實體圖表202的一第二影像圖表212(或是第二虛擬圖表),並且第一影像圖表211的一第一影像參考點211P與第二影像圖表212的一第二影像參考點212P兩者相距一影像量測距離D2。另外,第一影像圖表211與第二影像圖表212會形成在無圖表底層210上,以使得第一影像圖表211的周圍、第二影像圖表212的周圍以及第一影像圖表211與第二影像圖表212兩者之間沒有任何的圖表。舉例來說,第一影像圖表211的第一影像參考點211P可以是一第一影像中心點2111、一第一影像最左點2112、一第一影像最右點2113或者其它任意的點,並且第二影像圖表212的第二影像參考點212P可以是一第二影像中心點2121、一第二影像最左點2122、一第二影像最右點2123或者其它任意的點。再者,第一影像圖表211的第一影像參考點211P與第二影像圖表212的第二影像參考點212P兩者之間的影像量測距離D2可以是“第一影像圖表211的第一影像中心點2111、第一影像最左點2112以及第一影像最右點2113三者其中之一”相距“第二影像圖表212的第二影像中心點2121、第二影像最左點2122或者第二影像最右點2123三者其中之一”的距離(例如,圖6或者圖7所顯示的影像量測距離D2為:第一影像圖表211的第一影像中心點2111與第二影像圖表212的第二影像中心點2121兩者之間的距離)。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。Furthermore, as shown in FIG. 1 , FIG. 3 , FIG. 6 and FIG. 7 , when the image sensing chip M3 cooperates with the lens structure M2 to capture both the
更進一步來說,配合圖3、圖6、圖8、圖9與圖10所示,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2(如圖6所示)大於實體量測距離D1(如圖3所示)時,由於鏡頭結構M2的一光學中心點P(例如鏡頭結構M2的鏡片的光心)相距於影像感測晶片M3的一實際距離L(垂直距離)大於鏡頭結構M2的一鏡頭焦距F(也就是鏡頭結構M2的鏡片相距於影像感測晶片M3的鏡頭焦距F),所以鏡頭結構M2可以透過鏡頭位置調整裝置3的旋轉調整,以使得鏡頭結構M2漸漸朝向接近影像感測晶片M3的方向移動,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離等於鏡頭結構M2的鏡頭焦距F(也就是說,鏡頭結構M2的焦點會完全落在影像感測晶片M3上)(如圖10所示)。Furthermore, as shown in FIG. 3, FIG. 6, FIG. 8, FIG. 9 and FIG. When measuring the distance D1 (as shown in FIG. 3 ), since an optical center point P of the lens structure M2 (such as the optical center of the lens of the lens structure M2) is separated from an actual distance L (vertical distance) of the image sensor chip M3 greater than a lens focal length F of the lens structure M2 (that is, the lens of the lens structure M2 is separated from the lens focal length F of the image sensing chip M3), so the lens structure M2 can be adjusted through the rotation of the lens
舉例來說,配合圖3、圖6、圖8與圖10所示,鏡頭支架M1具有一右旋內螺紋M11,並且鏡頭結構M2具有與右旋內螺紋M11相互配合的一右旋外螺紋M21。藉此,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2(如圖6所示)大於實體量測距離D1(如圖3所示)時,鏡頭位置調整裝置3可以順時針旋轉調整鏡頭結構M2(如圖8的順時針箭頭所示),以使得鏡頭結構M2以順時針旋轉的方式漸漸接近影像感測晶片M3,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F,以使得鏡頭結構M2的鏡頭焦點會完全落在影像感測晶片M3上(如圖10所示),接著鏡頭結構M2就可以透過點膠的方式固定在鏡頭支架M1的內部。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。For example, as shown in FIG. 3, FIG. 6, FIG. 8 and FIG. 10, the lens holder M1 has a right-handed internal thread M11, and the lens structure M2 has a right-handed external thread M21 that cooperates with the right-handed internal thread M11 . In this way, when the image measurement distance D2 (as shown in FIG. 6 ) obtained by the image sensor chip M3 in cooperation with the lens structure M2 is greater than the physical measurement distance D1 (as shown in FIG. 3 ), the lens
舉例來說,配合圖3、圖6、圖9與圖10所示,鏡頭支架M1具有一左旋內螺紋M12,並且鏡頭結構M2具有與左旋內螺紋M12相互配合的一左旋外螺紋M22。藉此,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2(如圖6所示)大於實體量測距離D1(如圖3所示)時,鏡頭位置調整裝置3可以逆時針旋轉調整鏡頭結構M2(如圖9的逆時針箭頭所示),以使得鏡頭結構M2以逆時針旋轉的方式漸漸接近影像感測晶片M3,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F,以使得鏡頭結構M2的鏡頭焦點會完全落在影像感測晶片M3上(如圖10所示),接著鏡頭結構M2就可以透過點膠的方式固定在鏡頭支架M1的內部。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。For example, as shown in FIG. 3 , FIG. 6 , FIG. 9 and FIG. 10 , the lens holder M1 has a left-handed internal thread M12, and the lens structure M2 has a left-handed external thread M22 cooperating with the left-handed internal thread M12. In this way, when the image measurement distance D2 (as shown in FIG. 6 ) obtained by the image sensor chip M3 in cooperation with the lens structure M2 is greater than the physical measurement distance D1 (as shown in FIG. 3 ), the lens
更進一步來說,配合圖3、圖7、圖11、圖12與圖13所示,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2(如圖7所示)小於實體量測距離D1(如圖3所示)時,由於鏡頭結構M2的光學中心點P(例如鏡頭結構M2的鏡片的光心)相距於影像感測晶片M3的實際距離L(垂直距離)小於鏡頭結構M2的鏡頭焦距F(也就是鏡頭結構M2的鏡片相距於影像感測晶片M3的鏡頭焦距F),所以鏡頭結構M2可以透過鏡頭位置調整裝置3的旋轉調整,以使得鏡頭結構M2漸漸朝向遠離影像感測晶片M3的方向移動,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F(也就是說,鏡頭結構M2的焦點會完全落在影像感測晶片M3上)(如圖13所示)。Further speaking, as shown in FIG. 3, FIG. 7, FIG. 11, FIG. 12 and FIG. When measuring the distance D1 (as shown in Figure 3), the actual distance L (vertical distance) between the optical center point P of the lens structure M2 (such as the optical center of the lens of the lens structure M2) and the image sensor chip M3 is smaller than the lens The lens focal length F of the structure M2 (that is, the lens of the lens structure M2 is far away from the focal length F of the lens of the image sensor chip M3), so the lens structure M2 can be adjusted through the rotation of the lens
舉例來說,配合圖3、圖7、圖11與圖13所示,鏡頭支架M1具有一右旋內螺紋M11,並且鏡頭結構M2具有與右旋內螺紋M11相互配合的一右旋外螺紋M21。藉此,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2(如圖7所示)小於實體量測距離D1(如圖3所示)時,鏡頭位置調整裝置3可以逆時針旋轉調整鏡頭結構M2(如圖11的逆時針箭頭所示),以使得鏡頭結構M2以逆時針旋轉的方式漸漸遠離影像感測晶片M3,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F,以使得鏡頭結構M2的鏡頭焦點會完全落在影像感測晶片M3上(如圖13所示),接著鏡頭結構M2就可以透過點膠的方式固定在鏡頭支架M1的內部。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。For example, as shown in FIG. 3, FIG. 7, FIG. 11 and FIG. 13, the lens holder M1 has a right-handed internal thread M11, and the lens structure M2 has a right-handed external thread M21 that cooperates with the right-handed internal thread M11 . In this way, when the image measurement distance D2 (as shown in FIG. 7 ) obtained by the image sensor chip M3 in cooperation with the lens structure M2 is smaller than the physical measurement distance D1 (as shown in FIG. 3 ), the lens
舉例來說,配合圖3、圖7、圖12與圖13所示,鏡頭支架M1具有一左旋內螺紋M12,並且鏡頭結構M2具有與左旋內螺紋M12相互配合的一左旋外螺紋M22。藉此,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2(如圖7所示)小於實體量測距離D1(如圖3所示)時,鏡頭位置調整裝置3可以順時針旋轉調整鏡頭結構M2(如圖12的順時針箭頭所示),以使得鏡頭結構M2以順時針旋轉的方式漸漸遠離影像感測晶片M3,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F,以使得鏡頭結構M2的鏡頭焦點會完全落在影像感測晶片M3上(如圖13所示),接著鏡頭結構M2就可以透過點膠的方式固定在鏡頭支架M1的內部。然而,上述所舉的例子只是其中一可行的實施例而並非用以限定本發明。For example, as shown in FIG. 3 , FIG. 7 , FIG. 12 and FIG. 13 , the lens holder M1 has a left-handed internal thread M12, and the lens structure M2 has a left-handed external thread M22 cooperating with the left-handed internal thread M12. In this way, when the image measurement distance D2 (as shown in FIG. 7 ) obtained by the image sensor chip M3 with the lens structure M2 is smaller than the physical measurement distance D1 (as shown in FIG. 3 ), the lens
[第二實施例][Second embodiment]
參閱圖1至圖14所示,本發明第二實施例提供一種鏡頭對焦方法,其至少包括下列幾個步驟:首先,如圖3所示,提供一圖表顯示結構20,圖表顯示結構20包括彼此分離的一第一實體圖表201以及一第二實體圖表202,第一實體圖表201的一第一實體參考點201P與第二實體圖表202的一第二實體參考點202P兩者相距一實體量測距離D1(步驟S100);接著,配合圖1、圖3、圖6與圖7所示,透過一影像感測晶片M3配合一鏡頭結構M2以擷取圖表顯示結構20的第一實體圖表201與第二實體圖表202兩者後而取得一圖表影像資訊21,圖表影像資訊21用於提供對應於第一實體圖表201的一第一影像圖表211以及對應於第二實體圖表202的一第二影像圖表212,且第一影像圖表211的一第一影像參考點211P與第二影像圖表212的一第二影像參考點212P兩者相距一影像量測距離D2(步驟S102);然後,配合圖6至圖13所示,依據實體量測距離D1與影像量測距離D2的比較,將鏡頭結構M2漸漸朝向接近或者遠離影像感測晶片M3的方向移動,直到鏡頭結構M2的一光學中心點P相距於影像感測晶片M3的一實際距離L等於鏡頭結構M2的一鏡頭焦距F(步驟S104)。1 to 14, the second embodiment of the present invention provides a lens focusing method, which at least includes the following steps: first, as shown in FIG. 3, a
更進一步來說,配合圖3、圖6、圖8、圖9與圖10所示,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2大於實體量測距離D1時,由於鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L大於鏡頭結構M2的鏡頭焦距F,所以鏡頭結構M2可以透過旋轉調整,以使得鏡頭結構M2漸漸朝向接近影像感測晶片M3的方向移動,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F。Furthermore, as shown in FIG. 3, FIG. 6, FIG. 8, FIG. 9 and FIG. The actual distance L between the optical center point P of the lens structure M2 and the image sensor chip M3 is greater than the lens focal length F of the lens structure M2, so the lens structure M2 can be adjusted through rotation so that the lens structure M2 gradually approaches the image sensor chip M3 until the actual distance L between the optical center point P of the lens structure M2 and the image sensor chip M3 is equal to the lens focal length F of the lens structure M2.
更進一步來說,配合圖3、圖7、圖11、圖12與圖13所示,當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2小於實體量測距離D1時,由於鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L小於鏡頭結構M2的鏡頭焦距,所以鏡頭結構M2可以透過旋轉調整,以使得鏡頭結構M2漸漸朝向遠離影像感測晶片M3的方向移動,直到鏡頭結構M2的光學中心點P相距於影像感測晶片M3的實際距離L等於鏡頭結構M2的鏡頭焦距F。Furthermore, as shown in FIG. 3 , FIG. 7 , FIG. 11 , FIG. 12 and FIG. 13 , when the image measurement distance D2 obtained by the image sensor chip M3 and the lens structure M2 is smaller than the physical measurement distance D1, due to The actual distance L between the optical center point P of the lens structure M2 and the image sensing chip M3 is smaller than the focal length of the lens of the lens structure M2, so the lens structure M2 can be adjusted through rotation, so that the lens structure M2 gradually moves away from the image sensing chip M3 direction until the actual distance L between the optical center point P of the lens structure M2 and the image sensor chip M3 is equal to the lens focal length F of the lens structure M2.
[實施例的有益效果][Advantageous Effects of Embodiment]
本發明的其中一有益效果在於,本發明所提供的一種鏡頭對焦系統S,其能通過“待測物件承載裝置1用於承載一影像擷取模組M,且影像擷取模組M包括一鏡頭支架M1、可活動地設置在鏡頭支架M1上的一鏡頭結構M2以及對應於鏡頭結構M2的一影像感測晶片M3”、“鏡頭位置預判裝置2包括一圖表顯示結構20,且圖表顯示結構20包括彼此分離的一第一實體圖表201以及一第二實體圖表202,且第一實體圖表201的一第一實體參考點201P與第二實體圖表202的一第二實體參考點202P兩者相距一實體量測距離D1”以及“鏡頭位置調整裝置3用於可旋轉地調整鏡頭結構M2相距於影像感測晶片M3的距離”的技術方案,以使得當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2大於實體量測距離D1時,鏡頭結構M2可以透過鏡頭位置調整裝置3的旋轉調整,以使得鏡頭結構M2漸漸朝向接近影像感測晶片M3的方向移動,並且當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2小於實體量測距離D1時,鏡頭結構M2可以透過鏡頭位置調整裝置3的旋轉調整,以使得鏡頭結構M2漸漸朝向遠離影像感測晶片M3的方向移動。One of the beneficial effects of the present invention is that a lens focusing system S provided by the present invention can be used to carry an image capture module M through "the object carrying device 1 to be tested, and the image capture module M includes a Lens bracket M1, a lens structure M2 movably arranged on the lens bracket M1, and an image sensor chip M3 corresponding to the lens structure M2", "The lens position prediction device 2 includes a graph display structure 20, and the graph display The structure 20 includes a first entity graph 201 and a second entity graph 202 separated from each other, and both a first entity reference point 201P of the first entity graph 201 and a second entity reference point 202P of the second entity graph 202 A distance from a physical measurement distance D1" and "the lens position adjustment device 3 is used to rotatably adjust the distance between the lens structure M2 and the image sensing chip M3", so that when the image sensing chip M3 cooperates with the lens structure M2 When the obtained image measurement distance D2 is greater than the physical measurement distance D1, the lens structure M2 can be adjusted through the rotation of the lens position adjustment device 3, so that the lens structure M2 gradually moves toward the direction close to the image sensor chip M3, and when the image When the image measurement distance D2 obtained by the sensing chip M3 and the lens structure M2 is smaller than the physical measurement distance D1, the lens structure M2 can be adjusted through the rotation of the lens position adjustment device 3, so that the lens structure M2 gradually moves away from the image sensing chip Move in the direction of M3.
本發明的另外一有益效果在於,本發明所提供的一種鏡頭對焦方法,其能通過“提供一圖表顯示結構20,圖表顯示結構20包括彼此分離的一第一實體圖表201以及一第二實體圖表202,第一實體圖表201的一第一實體參考點201P與第二實體圖表202的一第二實體參考點202P兩者相距一實體量測距離D1”、“透過一影像感測晶片M3配合一鏡頭結構M2以擷取圖表顯示結構20的第一實體圖表201與第二實體圖表202兩者後而取得一圖表影像資訊21,圖表影像資訊21用於提供對應於第一實體圖表201的一第一影像圖表211以及對應於第二實體圖表202的一第二影像圖表212,且第一影像圖表211的一第一影像參考點211P與第二影像圖表212的一第二影像參考點212P兩者相距一影像量測距離D2”以及“依據實體量測距離D1與影像量測距離D2的比較,將鏡頭結構M2漸漸朝向接近或者遠離影像感測晶片M3的方向移動,直到鏡頭結構M2的一光學中心點相距於影像感測晶片M3的一實際距離L等於鏡頭結構M2的一鏡頭焦距F”的技術方案,以使得當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2大於實體量測距離D1時,鏡頭結構M2可以透過鏡頭位置調整裝置3的旋轉調整,以使得鏡頭結構M2漸漸朝向接近影像感測晶片M3的方向移動,並且當影像感測晶片M3配合鏡頭結構M2所取得的影像量測距離D2小於實體量測距離D1時,鏡頭結構M2可以透過鏡頭位置調整裝置3的旋轉調整,以使得鏡頭結構M2漸漸朝向遠離影像感測晶片M3的方向移動。Another beneficial effect of the present invention is that a lens focusing method provided by the present invention can be achieved by "providing a
本發明的另外再一有益效果在於,本發明所提供的一種圖表顯示結構20,其能通過“第一實體圖表201與第二實體圖表202設置在無圖表底層200上,以使得第一實體圖表201的周圍、第二實體圖表202的周圍以及第一實體圖表201與第二實體圖表202兩者之間沒有任何的圖表”的技術方案,以使得圖表顯示結構20可以被應用於本發明所提供的鏡頭對焦系統S以及鏡頭對焦方法。Another beneficial effect of the present invention is that a
以上所公開的內容僅為本發明的優選可行實施例,並非因此侷限本發明的申請專利範圍,所以凡是運用本發明說明書及圖式內容所做的等效技術變化,均包含於本發明的申請專利範圍內。The content disclosed above is only a preferred feasible embodiment of the present invention, and does not therefore limit the scope of the patent application of the present invention. Therefore, all equivalent technical changes made by using the description and drawings of the present invention are included in the application of the present invention. within the scope of the patent.
S:鏡頭對焦系統S: lens focusing system
1:待測物件承載裝置1: Object carrying device to be tested
2:鏡頭位置預判裝置2: Lens position prediction device
20:圖表顯示結構20: Diagram showing structure
200:無圖表底層200: No chart bottom layer
201:第一實體圖表201: First Entity Chart
202:第二實體圖表202: Second Entity Chart
201P:第一實體參考點201P: First Entity Reference Point
202P:第二實體參考點202P: Second entity reference point
201B:第一黑色區域201B: The first black area
201W:第一白色區域201W: The first white area
202B:第二黑色區域202B: Second black area
202W:第二白色區域202W: Second white area
2011:第一實體中心點2011: First Entity Center Point
2012:第一實體最左點2012: The first entity leftmost point
2013:第一實體最右點2013: First Entity Rightmost Point
2021:第二實體中心點2021: Second entity center point
2022:第二實體最左點2022: The leftmost point of the second entity
2023:第二實體最右點2023: Second Entity Rightmost Point
21:圖表影像資訊21: Chart image information
210:無圖表底層210: No chart bottom layer
211:第一影像圖表211: First Image Chart
211P:第一影像參考點211P: first image reference point
212P:第二影像參考點212P: Second image reference point
2111:第一影像中心點2111: Center point of the first image
2112:第一影像最左點2112: The leftmost point of the first image
2113:第一影像最右點2113: The rightmost point of the first image
2121:第二影像中心點2121: Center point of the second image
2122:第二影像最左點2122: The leftmost point of the second image
2123:第二影像最右點2123: The rightmost point of the second image
3:鏡頭位置調整裝置3: Lens position adjustment device
D1:實體量測距離D1: Entity measurement distance
D2:影像量測距離D2: Image measurement distance
L:實際距離L: actual distance
M:影像擷取模組M: Image capture module
M1:鏡頭支架M1: lens holder
M2:鏡頭結構M2: lens structure
M3:影像感測晶片M3: Image sensor chip
M11:右旋內螺紋M11: Right hand internal thread
M12:左旋內螺紋M12: Left-handed internal thread
M21:右旋外螺紋M21: right hand external thread
M22:左旋外螺紋M22: left-handed external thread
P:光學中心點P: optical center point
F:鏡頭焦距F: lens focal length
圖1為本發明第一實施例所提供的鏡頭對焦系統的其中一示意圖。FIG. 1 is a schematic diagram of a lens focusing system provided by a first embodiment of the present invention.
圖2為本發明第一實施例所提供的鏡頭對焦系統的另外一示意圖。FIG. 2 is another schematic diagram of the lens focusing system provided by the first embodiment of the present invention.
圖3為本發明第一實施例的圖表顯示結構所提供的一實體量測距離的示意圖。FIG. 3 is a schematic diagram of an entity measuring distance provided by the graph display structure of the first embodiment of the present invention.
圖4為本發明第一實施例的第一實體圖表具有多個第一黑色區域以及多個第一白色區域的示意圖。FIG. 4 is a schematic diagram of a first entity graph having a plurality of first black regions and a plurality of first white regions according to the first embodiment of the present invention.
圖5為本發明第一實施例的第二實體圖表具有多個第二黑色區域以及多個第二白色區域。FIG. 5 is a second entity chart according to the first embodiment of the present invention, which has a plurality of second black regions and a plurality of second white regions.
圖6為本發明第一實施例的圖表影像資訊所提供的一影像量測距離的示意圖。FIG. 6 is a schematic diagram of an image measuring distance provided by the chart image information according to the first embodiment of the present invention.
圖7為本發明第一實施例的圖表影像資訊所提供的另一影像量測距離的示意圖。FIG. 7 is a schematic diagram of another image distance measurement provided by the chart image information according to the first embodiment of the present invention.
圖8為本發明第一實施例的鏡頭位置調整裝置順時針旋轉調整鏡頭結構,以使得鏡頭結構以順時針旋轉的方式漸漸接近影像感測晶片的示意圖。FIG. 8 is a schematic diagram of the lens position adjusting device clockwise rotating and adjusting the lens structure according to the first embodiment of the present invention, so that the lens structure gradually approaches the image sensor chip in a clockwise manner.
圖9為本發明第一實施例的鏡頭位置調整裝置逆時針旋轉調整鏡頭結構,以使得鏡頭結構以逆時針旋轉的方式漸漸接近影像感測晶片的示意圖。FIG. 9 is a schematic diagram of the lens position adjustment device rotating counterclockwise to adjust the lens structure so that the lens structure gradually approaches the image sensor chip in a counterclockwise manner according to the first embodiment of the present invention.
圖10為圖8與圖9的鏡頭結構透過旋轉調整後,鏡頭結構的光學中心點相距於影像感測晶片的實際距離等於鏡頭結構的鏡頭焦距的示意圖。FIG. 10 is a schematic diagram showing that the actual distance between the optical center of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure after the lens structure of FIG. 8 and FIG. 9 is adjusted through rotation.
圖11為本發明第一實施例的鏡頭位置調整裝置逆時針旋轉調整鏡頭結構,以使得鏡頭結構以逆時針旋轉的方式漸漸遠離影像感測晶片的示意圖。FIG. 11 is a schematic diagram of the lens position adjustment device rotating counterclockwise to adjust the lens structure according to the first embodiment of the present invention, so that the lens structure gradually moves away from the image sensor chip in a counterclockwise manner.
圖12為本發明第一實施例的鏡頭位置調整裝置順時針旋轉調整鏡頭結構,以使得鏡頭結構以順時針旋轉的方式漸漸遠離影像感測晶片的示意圖。FIG. 12 is a schematic diagram of the lens position adjusting device clockwise rotating and adjusting the lens structure according to the first embodiment of the present invention, so that the lens structure gradually moves away from the image sensor chip in a clockwise manner.
圖13為圖11與圖12的鏡頭結構透過旋轉調整後,鏡頭結構的光學中心點相距於影像感測晶片的實際距離等於鏡頭結構的鏡頭焦距的示意圖。FIG. 13 is a schematic diagram showing that the actual distance between the optical center of the lens structure and the image sensing chip is equal to the lens focal length of the lens structure after the lens structure of FIG. 11 and FIG. 12 is adjusted through rotation.
圖14為本發明第二實施例所提供的鏡頭對焦方法的流程圖。FIG. 14 is a flow chart of the lens focusing method provided by the second embodiment of the present invention.
20:圖表顯示結構 20: Diagram showing structure
200:無圖表底層 200: No chart bottom layer
201:第一實體圖表 201: First Entity Chart
202:第二實體圖表 202: Second Entity Chart
201P:第一實體參考點 201P: First Entity Reference Point
202P:第二實體參考點 202P: Second entity reference point
2011:第一實體中心點 2011: First Entity Center Point
2012:第一實體最左點 2012: The first entity leftmost point
2013:第一實體最右點 2013: First Entity Rightmost Point
2021:第二實體中心點 2021: Second entity center point
2022:第二實體最左點 2022: The leftmost point of the second entity
2023:第二實體最右點 2023: Second Entity Rightmost Point
D1:實體量測距離 D1: Entity measurement distance
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TWM626231U (en) * | 2021-09-27 | 2022-05-01 | 海華科技股份有限公司 | Lens focusing system and chart display structure |
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CN115883950A (en) | 2023-03-31 |
TW202314354A (en) | 2023-04-01 |
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