G02B7/028

Thermal compensation in an integrated image sensor and lens assembly
11716526 · 2023-08-01 · ·

An integrated image sensor and lens assembly including an image sensor, a lens barrel, and a lens element. The lens barrel configured to direct light to the image sensor. The lens barrel is a multiple segment lens barrel or a multiple subsection lens barrel. The multiple segment lens barrel or the multiple section lens barrel includes: a first segment or a first subsection, and a second segment or a second subsection. The lens element located within the lens barrel. The first segment or the first subsection is movable relative to the second segment or the second subsection.

Vehicular camera with lens defogging feature

A vehicular camera for a vehicular vision system includes a housing having a front housing portion and a rear housing portion, with the front housing portion including a lens barrel for accommodating a lens. A heating device is disposed at an outermost lens element of the lens. The heating device includes a pair of electrically conductive elements that are routed along the lens barrel for electrical connection to circuitry at a printed circuit board. An outer end of each of the electrically conductive elements is disposed at and in contact with a heating element at and in contact with the inner surface of the outermost lens element. When powered, the heating element heats the outermost lens element to evaporate moisture or condensation thereat. The camera is configured to be disposed at an exterior portion of a vehicle so as to have a field of view exterior of the vehicle.

OPTICAL COMPONENTS HAVING ATHERMALIZATION AND ABERRATION CORRECTION CHARACTERISTICS

According to examples, a system for designing optical components to provide passive athermalization and aberration correction is described. The system may include a processor and a memory storing instructions. The processor, when executing the instructions, may cause the system to select one or more optical elements to be included in the optical component based on the received design specifications, select one or more optical element configurations based on the selected one or more optical elements and implement an optimization function to optimize the selected one or more optical element configurations. The processor, when executing the instructions, may then determine if the one or more optical element configurations meet one or more initial specifications, enable one or more adjustment(s) to the one or more optical element configurations and determine if an optical element configuration meet one or more additional specifications.

DEFROSTING LENS

A defrosting lens includes a lens barrel having an opening toward an object side, a first lens disposed in the lens barrel and located at the opening, and a heating member. The heating member is for providing a heat source and is disposed between an inner wall of the lens barrel and the first lens. The heating member is arranged along a peripheral edge of the first lens. By raising a temperature of the first lens through the heat source supplied by the heating member, frost formed on the first lens could be removed, thereby a definition of an image captured by the defrosting lens could be effectively improved, and the defrosting lens could be applied in various environments without being limited by the change of climate temperature difference.

DEVICE AND METHOD TO CALIBRATE PARALLAX OPTICAL ELEMENT FOR TEMPERATURE CHANGE

Provided is an electronic device including a display, a parallax optical element configured to provide light corresponding to an image output from the display to an eyebox of a user, a temperature sensor configured to measure a temperature around the parallax optical element, a memory configured to store a plurality of parameter calibration models for determining correction information in different temperature ranges for a parameter of the parallax optical element, and a processor configured to determine correction information corresponding to the measured temperature based on a parameter calibration model corresponding to the measured temperature among the plurality of parameter calibration models, and adjust the parameter of the parallax optical element based on the correction information.

OPTICAL IMAGING LENS

An optical imaging lens including an optical lens assembly with an optical axis, a lens barrel and a conductive element is disclosed. The optical lens assembly includes a plurality of lenses. The lens barrel includes an inner wall surface and a heating film, wherein the inner wall surface surrounds the optical axis and is made of electrical insulating material, and the heating film is formed on the inner wall surface. The optical lens assembly is disposed in the lens barrel in order from an object side to an image side. An edge of at least one lens of the optical lens assembly contacts the heating film. The conductive element is extended along the inner wall surface of the lens barrel, and is electrically connected to the heating film. One terminal of the conductive element is connected to an external power supply.

CAMERA DEVICE ASSEMBLED WITH LENS-TO-SENSOR DISTANCE THAT REDUCES AUTO-FOCUSING ACTUATION POWER
20230213729 · 2023-07-06 ·

Embodiments of the present disclosure relate to a camera device assembled to reduce an auto-focusing actuation power for the most typical use case. The camera device comprises an image sensor and a lens assembly in an optical series with the image sensor. During assembling of the camera device, the lens assembly is assembled within the camera device to have an optical axis parallel to gravity and positioned to have an offset along the optical axis relative to a support assembly. The offset is determined during assembling of the camera device such that, when the camera device is oriented with a rotated optical axis orthogonal to gravity, the lens assembly is positioned at a neutral position relative to the image sensor without activation applied to the lens assembly.

Imaging lens assembly
11693214 · 2023-07-04 · ·

The present disclosure discloses an imaging lens assembly. The imaging lens assembly includes, sequentially from an object side to an image side of the imaging lens assembly, a first lens having a positive refractive power and a convex object-side surface; a second lens having a negative refractive power and a concave image-side surface; and at least one subsequent lens. At least one of the first lens, the second lens, or the at least one subsequent lens is a glass aspheric lens. A transmittance T1 of the imaging lens assembly corresponding to a wave band 650 nm satisfies: T1>85%, a transmittance T2 of the imaging lens assembly corresponding to a wave band 490 nm satisfies: T2>88%, and a transmittance T3 of the imaging lens assembly corresponding to a wave band 430 nm satisfies: T3>75%.

Lens unit
11543618 · 2023-01-03 · ·

It is provided a lens unit to be small-sized, while reducing deterioration in optical performance after experiencing thermal expansion. The lens unit includes an aperture member, a lens, an image sensor, and a holder. A range where the aperture member abuts on a flange part of the lens overlaps with a range where the holder abuts on the flange part of the lens. A first gap is provided between a holder inclined surface of the holder and a lens inclined surface of the lens over the entire circumference. A second gap is provided between an outer circumferential surface of the lens and an inner surface of the holder over the entire circumference.

Method for Producing a Holding Device

1. A method for producing a holding device (1), wherein a light guide channel (2) is formed in the holding device (1) and extends from a first end section (2a) to a second end section (2b) of the holding device (1), wherein the first end section (2a) has a receiving region, in which a first optical element (3) can be fastened in a form-fitting manner, wherein the second end section (2b) has a stop surface (5) for the connection to a second optical element (4), and wherein the method comprises the following steps:

a) providing the first optical element (3),

b) providing an injection molding device for carrying out an injection molding process, wherein the injection molding device has two mold halves,

c) introducing the first optical element (3) into the first mold half of the injection molding device,

d) closing the mold halves,

e) forming the first end section (2a) of the holding device,

f) forming a shell of the holding device (1), which encloses the light guide channel (2),

g) forming the second end section (2b), which terminates the shell of the holding device (1), together with the stop surface (5).