A lens for a still or film camera includes a first and second lens-element arrangement, and a wavefront manipulator. The first and second lens-element arrangement are arranged spaced mutually apart along an optical axis of the lens such that an interstice is present therebetween. The wavefront manipulator is situated in the interstice and includes at least two optical components which are arranged so as to be displaceable counter to one another, perpendicular to the optical axis, and which each include a free-form surface. The wavefront manipulator has a zero position, in which the optical components thereof do not cause any image aberrations in the imaging properties of the lens, and effective positions, in which the optical components are displaced counter to one another, out of the zero position perpendicular to the optical axis, and in which the optical components cause a spherical aberration in the imaging properties of the lens.

A lens for a still or film camera includes a first and second lens-element arrangement, and a wavefront manipulator. The first and second lens-element arrangement are arranged spaced mutually apart along an optical axis of the lens such that an interstice is present therebetween. The wavefront manipulator is situated in the interstice and includes at least two optical components which are arranged so as to be displaceable counter to one another, perpendicular to the optical axis, and which each include a free-form surface. The wavefront manipulator has a zero position, in which the optical components thereof do not cause any image aberrations in the imaging properties of the lens, and effective positions, in which the optical components are displaced counter to one another, out of the zero position perpendicular to the optical axis, and in which the optical components cause a spherical aberration in the imaging properties of the lens.

A system and method for obtaining, by an electronic device, a first set of image data recorded during an image capture event and a second set of image data recorded during an image capture event. During the image capture event, a characteristic of an image capture device is changed from a first state to a second state. The first and second sets of image data are recorded by an image capture device having one or more image recording components with one or more image sensor arrays. An image is generated based at least in part on the first and second sets of image data.

An image capturing apparatus that allows a photographer to easily recognize whether or not a blurring generated in an image at the time of image capturing is due to a spherical aberration variable mechanism is provided. The image capturing apparatus, to/from which a lens barrel can be attached/detached, comprising a mounting unit configured to mount the lens barrel, a processor; and a memory storing a program which, when executed by the processor, causes the image capturing apparatus to obtain an adjustment amount of spherical aberration from the lens barrel mounted on the mounting unit, and control a display device to display information about the adjustment amount together with an image obtained through the lens barrel.

The invention relates firstly to a method for determining a mechanical deviation on a displacement path of an optical zoom lens, in particular on a displacement path of an optical zoom lens of a microscope. The optical zoom lens is arranged in a beam path between an object to be recorded and an electronic image sensor. In a first method step, an optical marker is introduced into the beam path at a position of the beam path located between the object to be recorded and the optical zoom lens, such that the optical marker passes the optical zoom lens and then is depicted on an image in which a position of the optical marker is detected and determined. This is compared with a reference position of the optical marker in order to determine the mechanical deviation on the displacement path of the optical zoom lens. The invention further relates to a method for correction of a displacement error of an image recorded by an electronic image sensor and to an electronic image recording device.

The invention relates firstly to a method for determining a mechanical deviation on a displacement path of an optical zoom lens, in particular on a displacement path of an optical zoom lens of a microscope. The optical zoom lens is arranged in a beam path between an object to be recorded and an electronic image sensor. In a first method step, an optical marker is introduced into the beam path at a position of the beam path located between the object to be recorded and the optical zoom lens, such that the optical marker passes the optical zoom lens and then is depicted on an image in which a position of the optical marker is detected and determined. This is compared with a reference position of the optical marker in order to determine the mechanical deviation on the displacement path of the optical zoom lens. The invention further relates to a method for correction of a displacement error of an image recorded by an electronic image sensor and to an electronic image recording device.

The invention relates firstly to a method for determining a mechanical deviation on a displacement path of an optical zoom lens (03), in particular on a displacement path of an optical zoom lens (03) of a microscope. The optical zoom lens (03) is arranged in a beam path (01) between an object (19) to be recorded and an electronic image sensor (04). In a first method step, an optical marker is introduced into the beam path (01) at a position of the beam path (01) located between the object (19) to be recorded and the optical zoom lens (03), such that the optical marker passes the optical zoom lens (03) and then is depicted on an image in which a position of the optical marker is detected and determined. This is compared with a reference position of the optical marker in order to determine the mechanical deviation on the displacement path of the optical zoom lens (03). The invention further relates to a method for correction of a displacement error of an image recorded by an electronic image sensor (04) and to an electronic image recording device.

The invention relates firstly to a method for determining a mechanical deviation on a displacement path of an optical zoom lens (03), in particular on a displacement path of an optical zoom lens (03) of a microscope. The optical zoom lens (03) is arranged in a beam path (01) between an object (19) to be recorded and an electronic image sensor (04). In a first method step, an optical marker is introduced into the beam path (01) at a position of the beam path (01) located between the object (19) to be recorded and the optical zoom lens (03), such that the optical marker passes the optical zoom lens (03) and then is depicted on an image in which a position of the optical marker is detected and determined. This is compared with a reference position of the optical marker in order to determine the mechanical deviation on the displacement path of the optical zoom lens (03). The invention further relates to a method for correction of a displacement error of an image recorded by an electronic image sensor (04) and to an electronic image recording device.

An optical system including a first microstructured surface; and a second microstructured surface; wherein the first microstructured surface is aligned along an axis with the second microstructured surface is provided. An illumination system including a light source and the optical system is also included. A method of diffusing light is included.

The present invention provides an optical imaging lens. The optical imaging lens comprises five lens elements positioned in an order from an object side to an image side, each of which has an object-side surface facing the object side and an image-side surface facing the image side. Counting from the object side to the image side, the five lens are labeled as a first lens element, a second lens element, a third lens element, a fourth lens element and a fifth lens element, all of which has refracting power. Through controlling a variable air gap formed between two adjacent lens elements and parameters to meet an inequality, adjustment distance required for focusing the optical imaging lens will be shortened.