A magnifying device (100) with multiple magnifications including: an outer shell (10) forming a body of revolution with an axis of revolution (X-X) and having an inner cavity (5), a first lens (30) mounted at a first end (13) of said outer shell (10), and a second lens (20) capable of moving between a retracted position and an extended position in which said second lens (20) is superimposed on said first lens (30) so as to change the optical characteristics of the magnifying device (100).

A magnifying device (100) with multiple magnifications including: an outer shell (10) forming a body of revolution with an axis of revolution (X-X) and having an inner cavity (5), a first lens (30) mounted at a first end (13) of said outer shell (10), and a second lens (20) capable of moving between a retracted position and an extended position in which said second lens (20) is superimposed on said first lens (30) so as to change the optical characteristics of the magnifying device (100).

A mobile terminal including a terminal body; and a camera module provided in the terminal body. The camera module includes a lens assembly; an image sensor provided at a lower end of the lens assembly; a first actuator mounted with a first filter and a second filter provided on one side of the lens assembly to filter light incident on the image sensor, wherein the first actuator comprises first and second support walls, and a first plate supported by the first and second support walls and supporting the first and second filters; a filter change device configured to move the first filter to overlap with the lens assembly in a first state and to move the second filter to overlap with the lens assembly in a second state; and a cover constituting an appearance of the camera module and including a through hole corresponding to an optical axis of the camera module, the cover having an inner space accommodating the lens assembly and the first actuator.

An optical zoom in a small form factor suitable for use in mobile devices such as cell phones, security cameras, and other small-scale imaging systems. The zoom design comprises a zoom submodule and a focusing sub-module. The zoom sub-module comprises a pair of lens frames, typically positioned on either side of a prism. Each of a pair of lens frames comprises a plurality of optically active areas. Each of the optically active areas on a first lens frame is complementary to a corresponding optically active area on a second lens frame, so that the complementary areas provide different optical powers. By moving the lens frames orthogonally to the optical axis, a complementary pair of optical areas is selected for alignment with the optical axis of the focusing sub-module, providing zoom of the image striking a sensor.

A small format factor camera system for mobile devices that provides improved image quality when using accessory lenses. The system may detect an accessory lens attached to the camera, either via sensing technology or by analyzing captured images. The system may analyze image data to determine current alignment (e.g., optical axis alignment, spacing, and/or tilt) of the accessory lens relative to the camera lens, and may shift the camera lens on one or more axes using a mechanical or optical actuator, for example to align the camera lens optical axis with the accessory lens optical axis. The system may also determine optical characteristics of the accessory lens, either via sensing technology or by analyzing captured images, and may apply one or more image processing functions to images captured using the accessory lens according to the determined optical characteristics of the accessory lens.

A small format factor camera system for mobile devices that provides improved image quality when using accessory lenses. The system may detect an accessory lens attached to the camera, either via sensing technology or by analyzing captured images. The system may analyze image data to determine current alignment (e.g., optical axis alignment, spacing, and/or tilt) of the accessory lens relative to the camera lens, and may shift the camera lens on one or more axes using a mechanical or optical actuator, for example to align the camera lens optical axis with the accessory lens optical axis. The system may also determine optical characteristics of the accessory lens, either via sensing technology or by analyzing captured images, and may apply one or more image processing functions to images captured using the accessory lens according to the determined optical characteristics of the accessory lens.

The invention relates to a liquid lens (1) with an adjustable optical power comprising at least the following components: a lens volume (VL) with a first transparent liquid (L1) arranged between a first transparent membrane (21) and a second transparent membrane (22) opposite the first membrane (21), wherein the first membrane (21) has a first side (21-1) facing outwards the lens volume (VL) and a second side (21-2) facing in the opposite direction particularly toward the lens volume (VL), wherein the second membrane (22) has a first side (22-1) facing toward the lens volume (VL) and a second side (22-2) facing in the opposite direction particularly outward the lens volume (VL), a lens shaping element (3) arranged on the first membrane (21), the lens shaping element (3) having a circumferential aperture (3a) defining a lens area (21a) of the first membrane (21) having an adjustable curvature, a rigid transparent window element (5) connected to the second membrane (22) covering a window portion (22a) of the second membrane (22), wherein the window element (5) is circumferentially surrounded by a free portion of the second membrane, such that the window element (5) can move relatively to the lens shaping element (3) thereby bending the free portion (22b) of the second membrane (22) and adjusting a liquid pressure in the lens volume (VL), such that a curvature of the first membrane (21) in the lens area (21a) and therefore the optical power of the lens (1) is adjusted.

The invention relates to a liquid lens (1) with an adjustable optical power comprising at least the following components: a lens volume (VL) with a first transparent liquid (L1) arranged between a first transparent membrane (21) and a second transparent membrane (22) opposite the first membrane (21), wherein the first membrane (21) has a first side (21-1) facing outwards the lens volume (VL) and a second side (21-2) facing in the opposite direction particularly toward the lens volume (VL), wherein the second membrane (22) has a first side (22-1) facing toward the lens volume (VL) and a second side (22-2) facing in the opposite direction particularly outward the lens volume (VL), a lens shaping element (3) arranged on the first membrane (21), the lens shaping element (3) having a circumferential aperture (3a) defining a lens area (21a) of the first membrane (21) having an adjustable curvature, a rigid transparent window element (5) connected to the second membrane (22) covering a window portion (22a) of the second membrane (22), wherein the window element (5) is circumferentially surrounded by a free portion of the second membrane, such that the window element (5) can move relatively to the lens shaping element (3) thereby bending the free portion (22b) of the second membrane (22) and adjusting a liquid pressure in the lens volume (VL), such that a curvature of the first membrane (21) in the lens area (21a) and therefore the optical power of the lens (1) is adjusted.

Dual-pupil, dual spectral band wide field-of-view re-imaged refractive optical imaging systems. In one example an optical imaging system includes a dual-band front objective lens group configured to receive electromagnetic radiation over the field-of-view of the optical imaging system, to form a first pupil, and to direct the electromagnetic radiation through the first pupil, the electromagnetic radiation including first and second non-overlapping spectral bands, and the field-of-view spanning at least 4545, and a re-imaging refractive optical sub-system configured to receive the electromagnetic radiation via the first pupil, to form at least one intermediate image plane, and to focus the electromagnetic radiation via at least one second pupil onto at least one final image plane to form a first image from the first spectral band and a second image from the second spectral band. A beam deflector can be positioned proximate the first pupil to expand the field of view.

Dual-pupil, dual spectral band wide field-of-view re-imaged refractive optical imaging systems. In one example an optical imaging system includes a dual-band front objective lens group configured to receive electromagnetic radiation over the field-of-view of the optical imaging system, to form a first pupil, and to direct the electromagnetic radiation through the first pupil, the electromagnetic radiation including first and second non-overlapping spectral bands, and the field-of-view spanning at least 4545, and a re-imaging refractive optical sub-system configured to receive the electromagnetic radiation via the first pupil, to form at least one intermediate image plane, and to focus the electromagnetic radiation via at least one second pupil onto at least one final image plane to form a first image from the first spectral band and a second image from the second spectral band. A beam deflector can be positioned proximate the first pupil to expand the field of view.