A camera module, a molded circuit board assembly, a molded photosensitive assembly and manufacturing method thereof are disclosed. The camera module includes a molded base which is integrally formed with a circuit board through a molding process, wherein a photosensitive element may be electrically connected on the circuit board and at least a portion of a non-photosensitive area portion of the photosensitive element is also connected by the molded base through the molding process. A light window is formed in a central portion of the molded base to provide a light path for the photosensitive element, wherein a cross section of the light window is configured to have a trapezoidal or multi-step trapezoidal shape which has a size increasing from bottom to top to facilitate demoulding and avoiding stray lights.

A camera module, a molded circuit board assembly, a molded photosensitive assembly and manufacturing method thereof are disclosed. The camera module includes a molded base which is integrally formed with a circuit board through a molding process, wherein a photosensitive element may be electrically connected on the circuit board and at least a portion of a non-photosensitive area portion of the photosensitive element is also connected by the molded base through the molding process. A light window is formed in a central portion of the molded base to provide a light path for the photosensitive element, wherein a cross section of the light window is configured to have a trapezoidal or multi-step trapezoidal shape which has a size increasing from bottom to top to facilitate demoulding and avoiding stray lights.

The optical element is a long optical element obtained by detaching a long main body part connected to a runner part via a gate part including an optical part from the gate part and chipping the detached main body, the optical part including at least a first optical surface to allow light to pass there through or to reflect light. The first optical surface has a curved surface that is curved on the short direction at least at the longitudinal end, while the first edge of the first optical surface side on the end surface of gate part side in the main body part is curved according to the curved surface example of the first optical surface. The boundary surface between the main body part and the gate part is formed so as to be narrower than the end surface of the gate part side of the main body part. At least the distance between the site corresponding to the effective region on the first optical surface at the first edge and the site corresponding to the effective region on the first optical surface at the second edge of the first optical surface side on the boundary surface is uniformly formed.

A molded resin product includes a plurality of protrusions formed in a predetermined region. A histogram indicating a height distribution of the plurality of protrusions has two peaks having a boundary height as a boundary therebetween. In a case where protrusions having height equal to or smaller than the height Hx are first protrusions and protrusions having height larger than the boundary height are second protrusions among the plurality of protrusions, an arithmetic mean curvature of the first protrusions is smaller than an arithmetic mean curvature of the second protrusions.

Disclosed are a resin molded product and method for diverse product design to provide a luxurious outer surface with deep black color, with a resin molded product that achieves luxurious colors without coating. The resin molded product includes a plurality of convex parts in a predetermined area with a height of each of the plurality of convex parts between 2 m and 15 m, and an arithmetic mean height of high-frequency components in the predetermined area between 12 nm and 20 nm.