Abstract: A projection system is provided, including: a light source, a liquid crystal panel, an illuminating lens group, an imaging lens group and an aperture. The light source is used to emit an illuminating beam, and enters the liquid crystal panel through the illuminating lens group. The liquid crystal panel is used to receive the illuminating beam and convert the illuminating beam into an image beam, and the image beam passes through the imaging lens group and exits the projection system through the aperture. The illuminating lens group includes a collimating lens group, a fly-eye lens, a relay lens, a linear polarizer, a polarized beam splitter, and a condenser lens in sequence. The imaging lens group includes the condenser, the polarized beam splitter, a quarter wave plate, a spherical lens, the quarter wave plate, and the polarized beam splitter in sequence, and the projection system is exit through the aperture.

Abstract: An optical lens is provided, including a substrate and multiple phase delay structures. The phase delay structures are disposed on the substrate in an array. Each of the phase delay structures is circular, and includes a center of circle and multiple microstructures. Distances D between the two adjacent microstructures of each of the phase delay structures in a radial direction of the center of circle are the same, and at least two of the phase delay structures among the phase delay structures have the different distances D.

Abstract: A metalens including a transparent substrate and lenses is provided. The lenses are located on the transparent substrate. Each of the lenses includes first columnar microstructures continuously arranged along a first direction and second columnar microstructures continuously arranged along a second direction. A pitch of the first columnar microstructure is different from a pitch of the second columnar microstructure.

Abstract: A compound prism module is provided, including: a first prism, a second prism, and an interface filling medium. The first prism has a first light-incident surface, a first reflecting surface, and a first light-emitting surface, where the first light-incident surface and the first light-emitting surface are connected to a first side edge, and the first light-incident surface and the first reflecting surface are connected to a first chamfered plane. The second prism has a second light-incident surface, a second reflecting surface, and a second light-emitting surface, wherein the second light-incident surface and the second light-emitting surface are connected to a second side edge, and the second light-incident surface and the second reflecting surface are connected to a second chamfered plane. The first light-incident surface and the second light-incident surface are connected to each other, and the first side edge and the second side edge are parallel to each other.

Abstract: A chiral molecule detector includes a light source, a photodetector, and a carrier. The carrier is configured to reflect at least part of light emitted by the light source to the photodetector. The carrier includes a substrate and a metal reflective layer. An upper surface of the substrate has a periodic hole array containing multiple holes. The metal reflective layer is located on the upper surface of the substrate, and covers a sidewall of the hole and a bottom surface of the hole.

Abstract: An image capturing module includes a light filter, a meta-lens layer, and a photosensitive element. The light filter includes a light receiving surface and a light emitting surface opposite to each other. The meta-lens layer and the light filter are disposed side by side with each other. The meta-lens layer includes a light transmitting film and a plurality of microstructures. Each microstructure is arranged on the light transmitting film. The photosensitive element includes a photosensitive surface. The photosensitive surface faces to the meta-lens layer and the light emitting surface of the light filter, wherein the photosensitive surface has a plurality of pixels, and each pixel corresponds to each microstructure.

Abstract: A compound prism module is provided, including a first prism and a second prism. The first prism includes a first light-incident surface, a first reflecting surface, and a first light-emergent surface connected to each other, where the first light-incident surface and the first light-emergent surface are connected to each other on a first side edge. The second prism includes a second light-incident surface, a second reflecting surface, and a second light-emergent surface connected to each other, where the second light-incident surface and the second light-emergent surface are connected on a second side edge. The first light-incident surface and the second light-incident surface are connected to each other and are coplanar, the first reflecting surface and the second reflecting surface are connected on a third side edge, there is a spacing between the third side edge and a connection between the first light-incident surface and the second light-incident surface.

Abstract: A zoom lens module is provided and includes a liquid lens, a rigid lens, and an actuator. The liquid lens has two side surfaces opposite to each other. An optical axis of the liquid lens passes through the two side surfaces, and at least one of two side surfaces is a deformable side surface. The rigid lens has a shaping surface being not flat. The rigid lens is arranged inside or outside the liquid lens, and the shaping surface faces the deformable side surface. The actuator is connected to one of the liquid lens and the rigid lens to drive the deformable side surface and the shaping surface to move relative to each other, so that the shaping surface contacts and presses the deformable side surface to be deformed.

Abstract: A 3D sensing device configured to sense a to-be-detected object is provided. The 3D sensing device includes a lighting module and a sensing module. The lighting module includes a lighting element, an optical element group, and a drive circuit. The drive circuit is coupled to the lighting element and configured to light the first lighting region, or the second lighting region, or both the first lighting region and the second lighting region. The drive circuit can determine an optical power of the second lighting region. The lighting module selectively emits a diffused light, or a structured light, or both the diffused light and the structured light. The sensing module is adjacent to the lighting module and configured to sense the diffused light, or the structured light, or both the diffused light and the structured light reflected by the to-be-detected object.

Abstract: A display module and manufacturing method thereof. The display module comprises a display screen, a first absorption polarizer, a first quarter wave plate, an optical lens component, and a convex lens component in sequence from a display side to a viewing side. The optical lens component and the convex lens component are optically coaxial. The convex lens component comprises a convex lens, a second absorption polarizer, and an optical integrated element, which are laminated in sequence from the viewing side to the display side. The optical integrated element comprises a second quarter wave plate and, on one side surface of the optical integrated element, a coated reflective polarizing film or a nano-imprinted metal grating. The reflective polarizing film or the metal grating is attached to the second absorption polarizer.

Abstract: A camera device connected to a terminal device, comprising a baseplate, a support frame, a photo shooting component, a flexible flat cable, and a limiting member. The baseplate comprises a first surface, a second surface, and a side surface between the first surface and the second surface. The support frame is disposed on the first surface of the baseplate. The photo shooting component is disposed on the support frame and is electrically connected to the baseplate. The flexible flat cable is disposed on the baseplate, and comprises a first extension section, a second extension section, and a bent section between the first extension section and the second extension section. One end of the first extension section away from the bent section is disposed on the side surface. The bent section is bent around the side surface and extends to the second surface.

Abstract: A display module and manufacturing method thereof. The display module comprises a display screen, a first absorption polarizer, a first quarter wave plate, an optical lens component, and a convex lens component in sequence from a display side to a viewing side. The optical lens component and the convex lens component are optically coaxial. The convex lens component comprises a convex lens, a second absorption polarizer, and an optical integrated element, which are laminated in sequence from the viewing side to the display side. The optical integrated element comprises a second quarter wave plate and, on one side surface of the optical integrated element, a coated reflective polarizing film or a nano-imprinted metal grating. The reflective polarizing film or the metal grating is attached to the second absorption polarizer.

Abstract: A zoom lens module includes first to eighth lens elements sequentially arranged from an object end to an image end. The number of lens elements with refractive power in the zoom lens module is eight. The first lens element and the second lens element form a first lens element group. The third lens element and the fourth lens element form a second lens element group. The fifth lens element and the sixth lens element form a third lens element group. The seventh lens element and the eighth lens element form a fourth lens element group. The first lens element group and the fourth lens element group remain fixed during zooming. The second lens element group and the third lens element group move during zooming.

Abstract: An optical imaging lens includes a first lens, a second lens, a third lens, a fourth lens, a fifth lens, and a sixth lens in sequence along an optical axis from an object side to an image side. The first lens to the fifth lens are aspheric surface lenses and have diopters, and the sixth lens is a metalens and has a positive diopter.

Abstract: Provided are a photosensitive assembly, a camera module, and an electronic device. The electronic device includes an electronic device body and a camera module mounted on the electronic device body. The camera module includes a lens and a photosensitive assembly. The photosensitive assembly includes a circuit board, a photosensitive element, a base, and an adhesive. The circuit board is provided with an accommodation cavity that extends through the circuit board. The photosensitive element is accommodated in the accommodation cavity and electrically connected to the circuit board. The base is disposed on the circuit board. The lens is located in the photosensitive path of the photosensitive element. The adhesive includes a first adhesive portion and a second adhesive portion. The first adhesive portion is located in the accommodation cavity. The second adhesive portion is located outside the accommodation cavity.

Abstract: An optical imaging apparatus capable of focusing is provided. The apparatus includes a lens assembly and an imaging sensing component. The lens group includes a stabilization component and a focusing component. The stabilization component has an optical axis and includes a first optical lens group and a driving element. The driving element is configured to drive the first optical lens group to move on a plane perpendicular to the optical axis or to rotate around the optical axis. The focusing component is fixed to the stabilization component and includes a second optical lens group. The second optical lens group is aligned with the optical axis. The image sensing component is fixed to one end of the lens group and is aligned with the optical axis.

Abstract: An imaging correction unit and an imaging module are provided. The imaging correction unit has an optical axis and includes four wedge optical elements with the same structure. The wedge optical elements are disposed sequentially on the optical axis. Each of the wedge optical elements has a minimum thickness dimension at a first edge and a maximum thickness dimension at a second edge. A connection line between the first edge and the second edge forms a symmetry axis of the each of the wedge optical elements. When a beam transmitted along the optical axis of the imaging correction unit passes sequentially through the wedge optical elements and is imaged at a center of an imaging surface, the symmetry axis of any one of the four wedge optical elements is at an angle of 90 degrees relative to the symmetrical axis of one of adjacent wedge optical elements.

Abstract: A wire gating polarizer includes a substrate layer, a polymer wire grating layer and a plurality of coated layers. The polymer wire grating layer is disposed on the substrate layer, and includes a plurality of wire grating units. The plurality of wire grating units are formed on an upper surface of the substrate layer, and extend in a first direction. Each of the wire grating units has a top surface and respectively has a first side surface and a second side surface along two sides of the first direction. The plurality of coated layers are respectively formed on the first side surface of each of the wire grating units. The plurality of coated layers are made of a metallic or nonmetallic dielectric material. A manufacturing method of the wire grating polarizer is further provided.

Abstract: An optical imaging apparatus includes a plurality of optical lenses. The optical lenses are arranged along an optical axis to capture an image in an image capture direction and project the image on an imaging plane. The plurality of optical lenses are divided into at least one fixed lens set and at least one movable lens set. The fixed lens set is fixedly disposed, and the movable lens set is configured to move relative to the fixed lens set, so as to adjust focal lengths of the optical lenses.

Abstract: A glue overflow detection system and method, includes a camera module and a processor. The camera module is configured to capture an image which includes a blue chromaticity image and a red chromaticity image. The processor obtains a chromatic-aberration difference image according to the blue chromaticity image and the red chromaticity image. The processor obtains a block feature image according to the chromatic-aberration difference image. The processor obtains a longitudinal inter-block difference image and a transverse inter-block difference image according to the block feature image. The longitudinal inter-block difference image includes a plurality of longitudinal block difference blocks each of which has a longitudinal difference value. The transverse inter-block difference image includes a plurality of transverse block difference blocks each of which has a transverse difference vale.