G02B5/06

Temperature drift compensation for liquid lenses

The invention relates to a lens, comprising a container (100) defining a volume (V) which is filled with a transparent liquid (2), wherein the container (10) comprises a transparent and elastically deformable membrane (20) and a rigid member (30), wherein the membrane (20) and the rigid member (30) delimit said volume (V), and a lens shaping element (200) that contacts the membrane (20) and defines an area (21) of said membrane (20), which area (21) has an adjustable curvature for adjusting the focal length of the lens (1). According to the invention, the lens (1) is configured to compensate a thermal expansion of the liquid (2) and/or a change of the refractive index of the liquid (2) due to an increased temperature of the liquid (2) in order to reduce an unwanted thermally induced change of the focal length of the lens (1).

METHOD FOR AVOIDING GRAVITY-INDUCED ROTATIONALLY NON-SYMMETRIC OPTICAL ERRORS IN PERMANENTLY INSTALLED (FIXED) MACHINE VISION AND CODE READING IMAGING SETUPS THAT ARE USING LIQUID LENS TECHNOLOGIES
20220196886 · 2022-06-23 · ·

An optical device for machine vision, particularly for automatically extracting information from images of an object, comprising: a first optical path, which is arranged to image a first object plane, a second optical path, which is arranged to image a second object plane, an image sensor which is arranged to capture the image of the first and/or second object plane, wherein the first object plane extends obliquely with respect to the second object plane, the first optical path and the second optical path extend through a first liquid lens with an optical axis, wherein the optical axis extends vertically.

METHOD FOR AVOIDING GRAVITY-INDUCED ROTATIONALLY NON-SYMMETRIC OPTICAL ERRORS IN PERMANENTLY INSTALLED (FIXED) MACHINE VISION AND CODE READING IMAGING SETUPS THAT ARE USING LIQUID LENS TECHNOLOGIES
20220196886 · 2022-06-23 · ·

An optical device for machine vision, particularly for automatically extracting information from images of an object, comprising: a first optical path, which is arranged to image a first object plane, a second optical path, which is arranged to image a second object plane, an image sensor which is arranged to capture the image of the first and/or second object plane, wherein the first object plane extends obliquely with respect to the second object plane, the first optical path and the second optical path extend through a first liquid lens with an optical axis, wherein the optical axis extends vertically.

Two-piece optical prism
11353637 · 2022-06-07 · ·

A two-piece optical prism includes a prism having a groove and prism having arc faces, where the prism having a groove has at least one first arc face and groove having at least one second arc face, and the prism having arc faces is placed in the groove of the prism having a groove and has at least one third arc face. The present invention can be used in the surface plasmon resonance optical system for the angle, range adjustment and control of incident light (e.g. laser light), capable of constituting an optical wide-angle, multi-angle incident system to carry out the wide-angle, multi-angle scanning detection of surface plasmon resonance, increasing the system dynamic detection range and sensitivity; and further reducing a detection chip.

CAMERA MODULE AND CAMERA APPARATUS COMPRISING SAME
20220171157 · 2022-06-02 · ·

A camera module according to an embodiment may include a base including a first side wall and a second side wall corresponding to the first side wall, a first guide part disposed adjacent to the first side wall of the base, a second guide part disposed adjacent to the second side wall of the base, a first lens assembly that moves along the first guide part, a second lens assembly that moves along the second guide part, a first ball disposed between the first guide part and the first lens assembly, and a second ball disposed between the second guide part and the second lens assembly.

TEMPERATURE DRIFT COMPENSATION FOR LIQUID LENSES

The invention relates to a lens, comprising a container (100) defining a volume (V) which is filled with a transparent liquid (2), wherein the container (10) comprises a transparent and elastically deformable membrane (20) and a rigid member (30), wherein the membrane (20) and the rigid member (30) delimit said volume (V), and a lens shaping element (200) that contacts the membrane (20) and defines an area (21) of said membrane (20), which area (21) has an adjustable curvature for adjusting the focal length of the lens (1). According to the invention, the lens (1) is configured to compensate a thermal expansion of the liquid (2) and/or a change of the refractive index of the liquid (2) due to an increased temperature of the liquid (2) in order to reduce an unwanted thermally induced change of the focal length of the lens (1).

IMAGE SHAKING-PREVENTION DEVICE INCLUDING PRISM, AND CAMERA MODULE COMPRISING SAME
20220121036 · 2022-04-21 ·

The embodiment relates to an image stabilization device and a camera module including the same.

The image stabilization device according to the embodiment includes: a first prism for changing a path of a light beam; a second prism disposed below the first prism and changing a path of light beam emitted from the first prism; an image stabilization control unit for controlling a shape of the second prism including a coil part and a magnet part.

The first prism may be disposed inside the image stabilization control unit. The second prism may be a variable wedge prism. The image stabilization control unit may control the path of the light beam by changing the shape of the second prism through the magnet part.

IMAGE SHAKING-PREVENTION DEVICE INCLUDING PRISM, AND CAMERA MODULE COMPRISING SAME
20220121036 · 2022-04-21 ·

The embodiment relates to an image stabilization device and a camera module including the same.

The image stabilization device according to the embodiment includes: a first prism for changing a path of a light beam; a second prism disposed below the first prism and changing a path of light beam emitted from the first prism; an image stabilization control unit for controlling a shape of the second prism including a coil part and a magnet part.

The first prism may be disposed inside the image stabilization control unit. The second prism may be a variable wedge prism. The image stabilization control unit may control the path of the light beam by changing the shape of the second prism through the magnet part.

SHAPER UNIT AND IMAGE STABILIZATION DEVICE
20220264006 · 2022-08-18 ·

Provided are a shaper unit and an image stabilization device. A shaper unit, according to one aspect of the present invention, comprises: a shaper body formed of a transparent material; first glass disposed on one side of the shaper body, a membrane disposed on one side of the first glass; a variable prism disposed on one side of the membrane; and a second glass disposed on one side of the variable prism.

OPTICAL STRUCTURE FOR SOLAR APPLICATIONS AND MANUFACTURING METHOD
20220109398 · 2022-04-07 ·

An thin and flat reflector solution is provided including an entirely flat, planar base element; and an at least one flat, planar carrier element provided with cavities arranged into an at least one pattern, wherein the carrier element(s) and optionally the base element are substantially optically transparent, wherein the at least one carrier element is laminated together with a base element such, that an at least one embedded, optically functional cavity pattern is established at an interface between the elements, and wherein the optical structure is rendered optically functional by adjusting cavity profiles within each the embedded pat-tern and/or within each the carrier element, wherein an optical function is selected from light reflection, light refraction and light redirection.