Abstract: An anamorphic objective lens comprising, along an optical axis and in order from an object space to an image space: at least a negative (?) spherical first lens group; an anamorphic second lens group and a positive (+) spherical third lens group wherein an aperture stop is located before, after or preferably within the spherical third lens group. Both spherical lens groups contain spherical refractive optical surfaces and the anamorphic lens group contains cylindrical and plano optical surfaces with at least one cylindrical surface oriented at substantially 90 degrees about at least one other cylindrical surface. The negative spherical first lens group may provide focusing.

Abstract: The illuminated object is brought to focus by a microscope objective lens in a focal plane. This image acts as the object for the lens under test. The position of the focal plane is adjusted by moving the object generator/viewing stage in the form of an autocollimator with a split beam eyepiece until it is coincident with the infinity focal plane of the lens under test. When this condition has been achieved, light transmitted by the test lens will be collimated. This collimated beam is reflected by a plane mirror and re-enters the test lens to be imaged in the focal plane and provide a well-focussed image as viewed by through the eyepiece. This image is also available for analysis using photoelectric techniques.

Abstract: An anamorphic objective lens comprising, along an optical axis and in order from an object space to an image space: at least a negative (?) first spherical power lens group; an anamorphic lens group and a positive (+) second spherical lens group wherein an aperture stop is located before, after or preferably within the spherical power second lens group. Both spherical lens groups contain spherical refractive optical surfaces and the anamorphic lens group contains cylindrical and plano optical surfaces with at least one cylindrical surface oriented at substantially 90 degrees about at least one other cylindrical surface. The negative first spherical power lens group may provide focusing.

Abstract: A camera lens assembly comprising a lens assembly housing and a compound lens and a motion sensor arrangement within the lens assembly housing, wherein the motion sensor arrangement comprises: angular rotation sensors configured to detect angular rotation about three orthogonal axes of rotation; and linear acceleration sensors configured to detect linear acceleration in three orthogonal directions.

Abstract: A camera lens assembly comprising a lens assembly housing and a compound lens and a motion sensor arrangement within the lens assembly housing, wherein the motion sensor arrangement comprises: angular rotation sensors configured to detect angular rotation about three orthogonal axes of rotation; and linear acceleration sensors configured to detect linear acceleration in three orthogonal directions.

Abstract: An adjustable lens with a self-illuminating scale for use in photography, cinematography, or videography has a housing surface with scale markings and an opaque member with a reference marking mounted over and movable relative to the surface. The movement of the member normally adjusts a parameter of the lens. The scale markings are visible through a window in the member. The edge of the member adjacent the scale has an opening. A light source is situated within a recess in the member adjacent the opening. Light is directed from the light source through the edge opening in a direction along the surface of the surface such that the visible scale markings are illuminated, while light from the light source is otherwise substantially prevented from escaping from the lens. The activation and intensity of the light source is controlled by movement of the member or an external illumination controller.