An image sensor includes a color sensor chip configured to generate a color image by sensing visible light in incident light; a light transfer layer disposed under the color sensor chip, and including an infrared light pass filter which filters infrared light from light having passed through the color sensor chip; and a depth sensor chip disposed under the light transfer layer, and configured to generate a depth image by sensing the infrared light.

An optical lens includes a first transparent portion, a second transparent portion, and an opaque metal barrier separating the first transparent portion from the second transparent portion. The opaque metal barrier is bonded directly to the first transparent portion and the second transparent portion via aluminum-oxide bonds. The optical lens can include a transition zone between the opaque metal barrier and adjacent transparent portions. The transition zone can include the aluminum-oxide bonds and have a thickness.

A metalens (wavefront control element) according to the present disclosure is a wavefront control element that controls a wavefront of incident light, and includes a plurality of metasurface regions. The plurality of metasurface regions are arranged in an array.

A light-emitting device includes: a plurality of light-emitting elements arranged in an array on a base member; and a lens that comprises at least four Fresnel lenses disposed above the base member and facing the plurality of light-emitting elements. In a top plan view, a center of each of the plurality of light-emitting elements is offset from a lens center of the corresponding one of the Fresnel lenses of the lens in a direction toward a center of the lens. The plurality of light-emitting elements include at least two first light-emitting elements and at least two second light-emitting elements, wherein an emission color of the first light-emitting elements is different from an emission color of the second light-emitting elements.

Manufacturing a pre-molded stack of one or more lenses to be installable on a curved substrate such as a vehicle windshield includes placing a moldable stack of one or more lenses and adhesive layer(s) on a mold, applying heat and pressure to the moldable stack to produce a pre-molded stack of one or more lenses from the moldable stack, and removing the pre-molded stack from the mold. The pre-molded stack may have a compound curvature, which may match a curvature of the curved substrate. The mold may be formed using three-dimensional shape data derived from the curved substrate, such as by optically scanning the curved substrate.

Focus system (1) comprising an imaging objective (10) with an optical element (100), two emitters (20) for emitting a beam (200) respectively, wherein the imaging objective (10) is arranged to depict an object (3) located in an object plane (30) in an image plane (31), the optical element is arranged to adjust a distance (300) from the object plane (30) to the imaging objective (10), the beams (200) are transmitted through or reflected by the optical element (20), and the beams (200) intersect at the object plane (30).

A 3D printer according to an embodiment of the disclosure includes: a resin tank accommodating a resin material; a molding plate movable up and down in the resin tank, and supporting a printed object formed by stacking a plurality of unit forming layers in sequence; an up-and-down movement actuator actuating at least one of the resin tank and the molding plate to move up and down; an exposure unit emitting light toward the molding plate; and a lens sheet including a first material layer including a molding surface facing the molding plate and a light receiving surface facing the exposure unit, disposed between the molding plate and the exposure unit, formed with a plurality of fine lens units for converging and diffusing the light from the exposure unit on one surface, and having a high refractive index, and a second material layer including a concavo-convex portion to be engaged with the fine lens unit of the first material layer, and having a low refractive index.

The light emitting assembly includes a substrate (1), a laser light source array, and a lens array. The laser light source array is disposed on the substrate (1), the lens array is disposed on a light emitting side of the laser light source array, one lens (3) in the lens array is disposed opposite to at least one laser light source (2) in the laser light source array, a light emitting surface of the lens (3) is a spherical surface, and at least some laser light sources (2) are eccentrically arranged with corresponding lenses (3). In a manufacturing process, lenses (3) of a same structure and laser light sources (2) of a same structure are used, and eccentric distances between the laser light sources (2) and the lenses (3) are changed, so that light emitting assemblies with different divergence angles can be prepared.

An illumination module (101) for an optical apparatus comprises a light source unit (102), which is configured to selectively emit light along a multiplicity of beam paths (112) in each case. The illumination module (101) also comprises a multiplicity of optical elements (201-203) arranged with lateral offset from one another, wherein each optical element (201-203) of the multiplicity of optical elements (201-203) is configured to transform at least one corresponding beam path (112) of the multiplicity of beam paths.

A cart or man-portable system and method for performing endoscopic procedures is provided. A portable display device, such as a laptop computer, is coupled to a handle comprising a miniature camera and fiber optic illumination subsystem. A sterile disposable portion is fitted over the illumination subsystem and inserted into a target area on a patient. Images of the target area are conveyed from the camera to the display device while an endoscopic procedure is performed, thus facilitating real-time diagnosis during the procedure.