The optical control apparatus includes a light source, a light collecting section, and an optical path control section. The light source emits light. The light collecting section collects the light emitted from the light source and illuminates the light onto an object.

A light adjustment module for a camera includes a light source unit and a light adjustment unit. The light source unit includes light emitting elements disposed around a lens of the camera, and the light direction of each of the light emitting elements is parallel to the image capturing direction of the lens. The light adjustment unit is disposed above the light source unit and includes secondary optical elements, and the secondary optical elements respectively correspond to the light emitting elements. The light emitted by each of light emitting elements is deflected through the corresponding secondary optical element. Each of the secondary optical elements includes a first ring-shaped prism and a second ring-shaped prism, the width of the second ring-shaped prism is greater than the width of the first ring-shaped prism, and the second ring-shaped prism surrounds the outer circumference of the first ring-shaped prism.

A light source device includes: a mounting board; a plurality of light-emitting parts disposed on the mounting board, each of the plurality of light-emitting parts being configured to be individually turned on; a light-shielding member defining an opening; and a light-guide member supported by the light-shielding member, the light-guide member comprising a Fresnel lens portion, wherein, in a top view, the Fresnel lens portion is located within an area of the opening of the light-shielding member. In the top view, irradiation areas of the respective light-emitting parts are at least partially separated from each other.

Embodiments of systems and methods for using electronic diffusers to implement message indicators are described. A segment of a diffuser attached to an electronic device is configured to indicate an informational message in response to signals that result in a change to an optical property. A set of information to be displayed using the segment is determined, and a signal is transmitted to the segment to display the information.

An illumination optical system includes a plurality of light sources arranged in an annular shape, and a prism plate that is formed in an annular shape about an optical axis of illumination light from the light sources. The prism plate includes a prism surface, upon which the illumination light falls incident and on which prism a plurality of prisms arranged in an annular shape along a circumferential direction of the prism plate, are formed, a flat section upon which the illumination light falls incident and which is formed in an annular shape along the circumferential direction of the prism plate, and an emission plane that emits the illumination light. The prism surface is formed on an outer peripheral side outward from a radius of the prism plate that is centered on the optical axis, and the flat section is formed on an inner peripheral side inward from the radius.

The present disclosure relates to optical systems, vehicles, and methods that are configured to illuminate and image a wide field of view of an environment. An example optical system includes a camera having an optical axis and an outer lens element disposed along the optical axis. The optical system also includes a plurality of illumination modules, each of which includes at least one light-emitter device configured to emit light along a respective emission axis and a secondary optical element optically coupled to the at least one light-emitter device. The secondary optical element is configured to provide a light emission pattern having an azimuthal angle extent of at least 170 degrees so as to illuminate a portion of an environment of the optical system.

Disclosed is an auxiliary photographic equipment, comprising a light-emitting assembly (10), a snoot assembly (20) and a light-shielding piece (30), wherein the light-emitting assembly (10) is provided with a light-emitting area (11) in which an illuminating lamp (12) is mounted; the snoot assembly (20) comprises a snoot (21) and a lens module (22), the snoot (21) is provided with an incident end (21a) and an emergent end (21b), the incident end (21a) of the snoot (21) is connected to the light-emitting assembly (10) and covers the light-emitting area (11), the lens module (22) is mounted in the snoot (21) and located between the incident end (21a) and the emergent end (21b), and the lens module (22) is configured to organize light rays from the incident end (21a) and then emit the light rays through the emergent end (21b) to form a light spot (40); and the light-shielding piece (30) is plugged on the snoot (21), and the light-shielding piece (30) is provided with an auxiliary light-transmitting hole (31) for adjusting the shape of the light spot (40) so as to assist a photographer in obtaining the light spot (40) of different shapes.

A ring flash light diffusion device includes a first converter ring configured to connect to a camera lens and a diffuser adapter. The diffuser adapter can be connected to a first end of the first converter ring. It also includes a flash ring connected to the diffuser adapter at a position along the length of the diffuser adapter and a ring flash connected to the flash ring. It further includes a light diffuser connected to the diffuser adapter such that light emitted from the ring flash passes through the light diffuser.

A light-emitting device includes: a plurality of light-emitting elements arranged in an array on a base member; and a compound eye 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 compound eye lens in a direction toward a center of the compound eye 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.

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.