An optical imaging system includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, a sixth lens, and a seventh lens sequentially disposed in numerical order along an optical axis of the optical imaging system from an object side of the optical imaging system toward an imaging plane of the optical imaging system, wherein the first to seventh lenses are spaced apart from each other along the optical axis, and the optical imaging system satisfies 0.4<L1TR/L7TR<1.9, where L1TR is an overall outer diameter of the first lens, L7TR is an overall outer diameter of the seventh lens, and L1TR and L7TR are expressed in a same unit of measurement.

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).

The present disclosure provides a camera module and an optical lens thereof, an optical lens element and a manufacturing method therefor, and a method for assembling a large wide-angle camera module, wherein the camera module comprises a lens and a photosensitive assembly. The lens comprises a lens barrel, at least one first lens element unit and at least one second lens element unit, and is further provided with at least one notch, wherein the first lens element unit and the second lens element unit are disposed in the lens barrel, and the first lens element unit is configured as a non-rotating body, and wherein the notch is provided in the lens barrel, or the notch is formed in the first lens element unit, or the notch is formed in the second lens element unit, and the first lens element unit is marked by means of the notch.

Alignment accuracy between an imaging element and a filming lens is improved. An imaging apparatus includes an imaging element, a wiring substrate, a sealing section, and fitting sections. The imaging element includes an imaging chip and pads. A light transmission section that transmits incident light is arranged on the imaging chip, and the imaging chip generates an image signal on the basis of the incident light that has transmitted through the light transmission section. The pads are arranged on a bottom surface of the imaging chip which is a surface different from the surface on which the light transmission section is arranged and convey the generated image signal. The wiring substrate includes wiring that is connected to the pads, and the imaging element is arranged on a front surface of the wiring substrate. The sealing section is arranged adjacent to side surfaces of the imaging chip which are the surfaces adjacent to the bottom surface of the imaging chip and seals the imaging chip. The fitting sections are arranged in the sealing section, and part of a lens unit for forming an optical image on the imaging element is fitted into the fitting sections.

A four-piece optical image capturing system. In order from an object side to an image side, the optical image capturing system along the optical axis includes a first lens with positive refractive power; a second lens with refractive power; a third lens with refractive power; and a fourth lens with refractive power; and at least one of the image-side surface and object-side surface of each of the four lenses are aspheric. The optical image capturing system can increase aperture value and improve the imagining quality for use in compact cameras.

A camera module includes a metal yoke, a holding base, a plastic barrel, a plurality of plastic lens elements, a leaf spring pair and a coil element. The holding base is connected to the metal yoke and defines an inner space. The holding base has a through hole which is corresponding to an opening of the metal yoke. The plastic barrel is movably disposed in the inner space. The plastic lens elements are disposed in the plastic barrel. The leaf spring pair includes two leaf springs which are located on a same plane and connected to the plastic barrel. The coil element surrounds an outer surface of the plastic barrel and electrically connected to the leaf spring pair, wherein two ends of the coil element is connected to the leaf springs by a thermal pressing method.

An optical unit with shake-correction function is provided and includes: a movable body, a rotational support structure, a gimbal mechanism, and a fixed body. The rotational support structure rotatably supports the movable body having a camera module around an optical axis. The rotational support structure is rotatably supported by the gimbal mechanism around a first axis and a second axis. The rotational support structure includes a first annular groove in the movable body, a plate roller having a second annular groove, multiple spherical objects to roll between the first annular groove and the second annular groove, and a pressurization structure configured to apply a force for bringing the first annular groove and the second annular groove close to each other in the direction of the optical axis.

An optical unit with shake-correction function is provided. A rotational support structure for supporting a movable body including a camera module around an optical axis is rotatably supported around a first axis and a second axis by a gimbal mechanism. The rotational support structure includes: a first annular groove, provided in the movable body; a plate roller, having a second annular groove facing the first annular groove in a direction of a Z axis; and a plurality of spherical objects, configured to be inserted into the first annular groove and the second annular groove, and roll between the movable body and the plate roller. The gimbal mechanism is configured to rotatably support the plate roller around the first axis.

Various embodiments include a camera having an actuator arrangement with a low-profile actuator arrangement. For example, the camera may include a voice coil motor (VCM) actuator to move a lens group and/or an image sensor of the camera. According to some embodiments, the VCM actuator may include one or more magnet-coil groups located beside an image sensor package of the camera. In some embodiments, a magnet-coil group may be located between the image sensor package and a side wall of the camera. Additionally, or alternatively, the magnet-coil group may at least partially extend (e.g., in a direction parallel to an optical axis defined by the lens group) past an upper surface of the image sensor and a bottom of the camera in some embodiments.

A lens unit and a camera module in which the electrical wiring extending from the electrically functional component in the lens barrel can be guided to the image side without interfering with an assembly operation, without the need of ensuring a wiring space in the lens barrel, and without forming an elongated through hole in the lens barrel. The lens barrel includes: i) a first through hole extending in the longitudinal direction inside the side wall to guide the electric wiring from the component to the image side end of the flange; ii) a second through hole extending radially on the side wall so the first through hole can communicate with the outside of the barrel; iii) an accommodation groove on the outer peripheral surface of the side wall to communicate with the second through hole, in order to accommodate the wiring and guide the wiring to the image side.