Abstract: The disclosure relates to an optical system and a camera module. The optical system sequentially includes a first element group and a second element group from an object side to an image side along an optical axis, wherein the first element group sequentially includes, from the object side to the image side: a first lens having a positive refractive power, a reflective element, and a second lens having a negative refractive power, and the reflective element is configured for reflecting light emitted from the first lens; the second element group has a positive refractive power, and the second element group is able to move in a direction along the optical axis, so that the optical system switches between a short-focus state and a long-focus state; and the optical system satisfies 0.39<DL/DEFL<0.49.

Abstract: An optical system and a camera module are provided, and the optical system along an optical axis from an object side to an image side sequentially includes: a first element group, a second element group, and a third element group having a positive refractive power. The first element group, from the object side to the image side sequentially includes: a first lens having a positive refractive power and a reflective element. The reflective element is configured to reflect light exiting from the first lens. The optical system satisfies: 0.85<|FG12/FG3|<1.1, where FG12 is a combined focal length of the first element group and the second element group, and FG3 is an effective focal length of the third element group.

Abstract: An optical system and a camera module are provided. In an implementation, the optical system, along an optical axis from an object side to an image side sequentially includes, a first element group and a second element group. The first element group includes a first lens having positive refractive power, the first lens is configured to converge incident light propagating along a first optical axis; and a reflective element configured to redirect the light emitting from the first lens from propagating along the first optical axis to propagating along a second optical axis. The second element group comprises at least one lens arranged sequentially from the object side to the image side along the second optical axis. The optical system satisfies: 1.7<f1/FG2<2.5, wherein f1 is an effective focal length of the first lens, and FG2 is an effective focal length of the second element group.

Abstract: Disclosed are an optical system and a camera module. The optical system sequentially includes, from an object side to an image side, a first lens, a reflective element and a second element group. The first lens has a positive refractive power, and allows propagation of light rays along a first optical axis. The reflective element changes light rays emitted from the first lens from propagating along the first optical axis to propagating along a second optical axis. The first lens and the reflective element constitute a first element group. The second element group has a positive refractive power. During an anti-shaking process, the position of an image plane of the optical system remains fixed, and the first element group rotates around a direction parallel to the second optical axis, an effective focal length f1 of the first lens and an effective focal length EFL of the optical system satisfy: 1.9<|f1/EFL|<3.0.

Abstract: A graphical representation of available Storage Area Networks (SANs) and of available hosts is displayed. Storage is provisioned from a selected SAN to a selected host in response to dragging and dropping the graphical representation of the selected SAN into the graphical representation of the selected host. Thus, a drag-and-drop metaphor may be used to facilitate storage provisioning. Related methods, systems and computer program products are disclosed.