Abstract: An optical imaging lens from an object side to an image side includes a first lens element to a sixth lens element. The first lens element has negative refracting power, a periphery region of the object-side surface of the first lens element is convex, the second lens element has positive refracting power, an optical-axis region of the image-side surface of the second lens element is convex, an optical-axis region of the object-side surface of the third lens element is convex, an optical-axis region of the image-side surface of the third lens element is convex. Only the above-mentioned six lens elements have refracting power. AAGF is a distance from the object-side surface of the first lens element to the object-side surface of the second lens element along the optical axis and T6 is a thickness of the sixth lens element along the optical axis to satisfy AAGF/T6?2.000.

Abstract: The present invention discloses an OPC UA based multi-mechanical device interconnection and intercommunication realization system, which realizes horizontal integration, vertical integration, and arbitrary connectivity between devices and systems by using OPC UA technologies on the basis of multiple different mechanical devices. The software system includes a plurality of different layers, which are a device layer, a device operation layer, a data acquisition layer, a data interaction layer, a network support layer, a data storage layer, an application service layer, and a user interface layer from bottom to top, and each layer has specific functions. The present invention realizes the interconnection and intercommunication of multiple mechanical devices, can realize free communication across the firewall, and has strong reliability, user friendliness, real-time performance, scalability and security.

Abstract: The present invention discloses an OPC UA based multi-mechanical device interconnection and intercommunication realization system, which realizes horizontal integration, vertical integration, and arbitrary connectivity between devices and systems by using OPC UA technologies on the basis of multiple different mechanical devices. The software system includes a plurality of different layers, which are a device layer, a device operation layer, a data acquisition layer, a data interaction layer, a network support layer, a data storage layer, an application service layer, and a user interface layer from bottom to top, and each layer has specific functions. The present invention realizes the interconnection and intercommunication of multiple mechanical devices, can realize free communication across the firewall, and has strong reliability, user friendliness, real-time performance, scalability and security.

Abstract: An optical imaging lens from an object side to an image side includes a first lens element to a sixth lens element. The first lens element has negative refracting power, a periphery region of the object-side surface of the first lens element is convex, the second lens element has positive refracting power, an optical-axis region of the image-side surface of the second lens element is convex, an optical-axis region of the object-side surface of the third lens element is convex, an optical-axis region of the image-side surface of the third lens element is convex. Only the above-mentioned six lens elements have refracting power. AAGF is a distance from the object-side surface of the first lens element to the object-side surface of the second lens element along the optical axis and T6 is a thickness of the sixth lens element along the optical axis to satisfy AAGF/T6?2.000.

Abstract: An optical imaging lens includes a first lens element to a sixth lens element. The first lens element has positive refracting power, an optical axis region of the object-side surface of the second lens element is convex, the third lens element has positive refracting power and an optical axis region of the image-side surface of the third lens element is convex, and an optical axis region of the image-side surface of the fifth lens element is convex. ImgH is an image height of the optical imaging lens, Fno is the f-number of the optical imaging lens, ?2, ?3, ?4 and ?6 are respectively an Abbe number of the second, the third, the fourth and the sixth lens element to satisfy ImgH/Fno?2.000 mm and ?2+?3+?4+?6?135.000.

Abstract: An optical imaging lens includes a first lens element to a sixth lens element. The first lens element has positive refracting power, an optical axis region of the object-side surface of the second lens element is convex, the third lens element has positive refracting power and an optical axis region of the image-side surface of the third lens element is convex, and an optical axis region of the image-side surface of the fifth lens element is convex. ImgH is an image height of the optical imaging lens, Fno is the f-number of the optical imaging lens, ?2, ?3, ?4 and ?6 are respectively an Abbe number of the second, the third, the fourth and the sixth lens element to satisfy ImgH/Fno?2.000 mm and ?2+?3+?4+?6?135.000.

Abstract: An optical imaging lens from an object side to an image side includes a first lens element to a sixth lens element. The first lens element has negative refracting power, a periphery region of the object-side surface of the first lens element is convex, the second lens element has positive refracting power, an optical-axis region of the image-side surface of the second lens element is convex, an optical-axis region of the object-side surface of the third lens element is convex, an optical-axis region of the image-side surface of the third lens element is convex. Only the above-mentioned six lens elements have refracting power. AAGF is a distance from the object-side surface of the first lens element to the object-side surface of the second lens element along the optical axis and T6 is a thickness of the sixth lens element along the optical axis to satisfy AAGF/T6?2.000.