PANAVISION INTERNATIONAL, L.P.
|PANAVISION INTERNATIONAL, L.P. Patent applications|
|Patent application number||Title||Published|
|20120268831||WIDE ANGLE ZOOM LENS - Embodiments of a zoom lens system may comprise at least four lens groups having a NPNP power sequence. The first lens group may include a stationary lens element. The second through fourth lens groups may be movable during zooming. An additional movable N or P lens group on the image side of the system may correct field curvatures or astigmatism. The first lens group may include a stationary, N first lens subgroup and an N second lens subgroup having a movable lens element for focusing. The first lens group may contribute to low focus breathing. Multiple lens groups may have matching movement plans. Some embodiments may be high speed and have a first lens group that can be stationary during zoom. Some embodiments may have only one aspheric surface.||10-25-2012|
|20120019930||HIGH-SPEED ZOOM LENS - Embodiments of an optical zoom lens system may comprise three lens groups with a PNP power sequence. The first lens group may vary focus. The second and third lens groups may be movable to vary magnification during zoom. The first lens group may include three lens subgroups with an NNP power sequence: a stationary first lens subgroup, a second lens subgroup including a movable lens element, and a stationary or movable third lens subgroup. The second lens subgroup may include two parts, which may be movable at different rates of travel to vary focus. One part may include the movable lens element. Lens elements of the first lens group may be movable according to different focus movement plans. In the first lens group, lens element movement and lens element power may contribute to provide low focus breathing over the entire zoom range. The F-number may be F/2.8 or less.||01-26-2012|
|20090167782||CORRECTION OF COLOR DIFFERENCES IN MULTI-SCREEN DISPLAYS - The calibration (e.g. color correction and/or equalization) of one or more display devices in an automated fashion using feedback obtained directly from the display devices, without requiring any manual or subjective evaluation, is disclosed. A sensor associated with a particular display device automatically measures certain characteristics of the display device, and feeds back calibration information to an image processor at the input to the display device. Based on the feedback, the image processor adjusts the characteristics of the display device to match a reference characteristic. When multiple sensors are used with multiple display devices and image processors, substantially uniform display characteristics and matching of the multiple display devices is possible.||07-02-2009|
|20090097840||CAMERA MULTI-MOUNT - A multi-mount apparatus for devices such as camera heads or lights on the end of a crane arm is disclosed. The multi-mount can include two substantially parallel side plates connected together with internal support members. A top mounting plate can be rotatably attached to the multi-mount at a top pivot point on the side plates. The multi-mount contains a leveling head, which can include a motor that drives a worm gear engaged with a moon gear. A bottom mounting plate can be attached to the moon gear, which is rotatably attached to the multi-mount at a bottom pivot point on the side plates. A motor drives a moon gear to rotate and maintain the bottom mounting plate at a desired orientation. In some embodiments, one or more push/pull rods rotatably attached to the bottom and top mounting plates also cause the top mounting plate to be maintained at the same orientation as the bottom mounting plate.||04-16-2009|
Patent applications by PANAVISION INTERNATIONAL, L.P.