The present invention provides an optical lens and an assembly method thereof The optical lens includes: a first lens barrel; a second lens barrel arranged with a first mounting portion protruding toward the first lens barrel; a first lens, comprising a first object side facing a light incident end of the optical lens, a first image side facing a light exit end of the optical lens, and a first side wall connecting the first object side and the first image side; wherein the first lens is sandwiched between the first lens barrel and the second lens barrel; the first mounting portion is arranged around the first lens and spaced from the first side wall to define a glue-holding slot; a first adhesive material, arranged between the first image side and the second lens barrel; and a second adhesive material, arranged in the glue-holding slot. In this way, the first lens can be prevented from deforming or breaking, i.e., the lateral shear strength of the optical lens can be improved.

A vehicular camera includes a PCB having an imager disposed thereat, a lens barrel accommodating a lens, and a lens barrel support structure that protrudes from the PCB and at least partially circumscribes the imager. The lens barrel has an outer surface between the ends of the lens barrel. The outer surface of the lens barrel is adhesively bonded to an inner surface of the lens barrel support structure via adhesive. The outer surface of the lens barrel opposes the inner surface of the lens barrel support structure. With the adhesive in its uncured state and contacting the opposed surfaces, the imager is aligned with the lens accommodated at the lens barrel. With the imager aligned with the lens, the adhesive is cured to adhesively attach the lens barrel at the lens barrel support structure.

Misalignment of a substrate portion which integrates an image sensor and a substrate is suppressed. An imaging apparatus comprises: an imaging optical system including at least one optical element; a holding member holding the imaging optical system; an image sensor configured to capture a subject image formed by the imaging optical system; a substrate having the image sensor mounted thereon; and a bonding member fixing a substrate portion to the holding member, the substrate portion integrating the image sensor and the substrate, wherein the bonding member is partly in contact with a surface of the substrate portion, and at at least two positions in a part of the surface of the substrate portion in contact with the bonding member, the surface of the substrate portion faces different directions.

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.

A lens module mounted on rigid-flex printed circuit board (PCB) includes a rigid-flex PCB unit having two rigid PCBs and a flex PCB connected to between the two rigid PCBs, and an image sensor and a lens mounted on the flex PCB. A clearance is formed between the lens and the two rigid PCBs, and is filled with clearance glue. The clearance glue reinforces joints of the flex PCB and the two rigid PCBs, and the lens module becomes an integral structure after the clearance glue is cured.

A multi-group lens assembly (10), a camera module (100), and an electronic device (200) therefore are provided. The multi-group lens assembly (10) includes at least two group units (11 and 12). At least a first gap (15) is provided between the at least two adjacent group units (11 and 12) to compensate a difference between the multi-group lens assembly (10) and an optical design system, thus allowing an optical system of the multi-group lens assembly conform to the optical design system of the present invention.

A laser projection module is provided. The laser projection module includes a substrate assembly, a lens barrel assembly, a light source, a diffractive optical element and a collimation element. The lens barrel assembly includes a lens barrel and a stop member connected to the lens barrel. The lens barrel is disposed on the substrate assembly and configured to define a receiving cavity together with the substrate assembly. The light source is disposed on the substrate assembly, accommodated in the receiving cavity, and configured to emit laser to the receiving cavity. The diffractive optical element and the collimation element are accommodated in the receiving cavity. The light source, the collimation element and the diffractive optical element are sequentially disposed in an optical path of the light source. The stop member is configured to prevent the diffractive optical element from moving in a light-emitting direction of the laser projection module.

A high-power laser processing head has precisely centered stationary lenses. The assembly of the lenses in the head can reduce contamination. The lens is affixed (soldered) in a ring-shaped highly precise mount, which ensures a high thermal conductivity of the joining interface. The mount and lens can be cleaned as a unit and inserted in a precisely manufactured receptacle of a housing module. A seal can provide sealing between an inner surface in the receptacles and a base surfaces of the mount. The modules has a groove around the diameter of the receptacle to catch any particles generated when inserting the lens mounts into the receptacle. The assembly is clamped into place by the next housing module. The lens is directly cooled by the module's body to mitigate contamination on the lens surface. During repairs, both lens and mount can be exchanged as a unit.

A lens module includes a holder, at least one lens, a base, a sensor, an anisotropic conductive film, a flexible circuit board, and a filling member. The filling member is arranged at a side of the sensor and received in the holder. Along a direction of an optical axis of the lens module, a distance between the side of the sensor and the anisotropic conductive film is defined as a first value, a thickness of the filling member is defined as a second value, a ratio of the second value to the first value is in a range of 0.8 to 1. An electronic device having the lens module is also provided.

An imaging device includes a lens barrel in which a plurality of lenses are held and that has a thread groove in a cylindrical outer periphery thereof; an imaging element that captures a subject image incident on the imaging element through the lenses; a housing that holds the imaging element and that includes a threaded portion configured to engage with the thread groove in the outer periphery of the lens barrel; and an adhesive member positioned between the thread groove in the outer periphery of the lens barrel and the threaded portion of the housing. The thread groove is provided in a range including a position at which a principal plane of an optical system including the plurality of lenses crosses the outer periphery of the lens barrel.