Devices and methods for optical-based tamper detection using variable light characteristics are disclosed. In one embodiment, an electronic device may include a housing, a light source within the housing configured to emit light having an output light characteristic that is variable, a light detector within the housing configured to receive the light emitted by the light source, the light received by the light detector having a received light characteristic, and an optoelectric controller in communication with the light source and the light detector, wherein the optoelectric controller controls the output light characteristic, and compares the received light characteristic to a known received light characteristic.

The present invention provides an LED module that can prevent breakage of an LED chip due to pulse lighting for a flash when the LED module is used in a flashing lamp. An LED module (10) for flashing lamp includes: an LED substrate (13); plural LEDs (12); and plural resin layers (11). In the LED module (10), the LEDs (12) are mounted on a mounting surface of the LED substrate (13). Each resin layer (11) is stacked on a surface of each LED (12) opposite to the LED substrate (13). Adjacent resin layers (11) stacked on the LEDs (12) are separated from each other.

An intelligent street light structure includes an antenna, a data transmission system and wires. This makes the intelligent street light structure have a remote data transmission function and also effectively protect the antenna and the data transmission system provided therein again external invasion.

A luminaire includes a light emitting diode module, a driver housing, and a hollow connector that connects the driver housing and the light emitting diode module. The driver housing includes a rotatable cap and a driver that provides power to the light emitting diode module. The rotatable cap permits rotation of the hollow connector and the light emitting diode module in order to direct the light from the light emitting diode module in a desired direction. The light emitting diode module includes a plurality of optics wherein each optic covers at least one light emitting diode and at least one vent adjacent to each optic.

An articulated positioning assembly includes a first support channel and a second support channel coupled together using a joint assembly having a plurality of degrees of freedom of movement. A magnetic coupling assembly is coupled to the first support channel and is configured to couple the first support channel to a support surface of a plurality of support surfaces. A light fixture comprising a plurality of individual point light sources is coupled to the second support channel and configured to generate a light field over a work area.

A ceiling grid lighting assembly for use in suspended ceiling systems is provided with multiple linear lighting modules in parallel arrangement. End plates are used to connect, support, and enclose longitudinal ends of the elongate body of each linear lighting modules while simultaneously functioning as reflective faces for optical cavities. A configured gap spacing between individual linear lighting modules can be used to house and support components such as additional light sources, acoustic or decorative panels, HVAC components, or power systems, controls or sensors. The end plate can also be configured to allow a T-bar to be placed in the configured gap spacing thereby enabling the mounting of the assembly in-line upon the longitudinal axis of a ceiling grid T-bar. Embodiments of linear lighting modules are presented comprising LED light sources, light guides and diffusers housed within the elongate body. The light guides may be edgelit from one or two sides and aligned horizontally or tilted relative to the ceiling grid plane.

Provided is a stage lighting source system with a lamp protection function. The stage lighting source system comprises a lamp, a lamp protection device and a light filter. All are arranged along a light axis sequentially. The lamp protection device comprises a non-transparent structure and a mounting component for mounting non-transparent structure. Light axis passes through the non-transparent structure. Non-transparent structure size does not affect a lamp light emitting effect in the light axis direction. Non-transparent structure fully or partially absorbs and/or reflects light energy from the light filter. The structure is easy and convenient to use, intercepts light energy reflected from the light filter by using appropriate blocking object and structure, effectively controls lamp electrode temperature within an acceptable range, and ensures lamp service life so that a flat light filter without an included angle is applied, and an ideal optical effect is realized.

A safety carrier includes a body (100) in which a storage space is formed, a communication unit (110) which is accommodated in the body (100) and receives a control signal from an external terminal device (200), a sensing unit (120) which detects a front surface and a rear surface of the body (100) based on a direction in which the body (100) lies, a control unit (130) which performs control so that a color, a blinking method, a state, and the like of a display unit (140) positioned to be exposed at an outer surface of the body (100) are displayed on the front surface detected by the sensing unit (120) based on the control signal input to the communication unit (110), and a battery unit (150) accommodated in the body (100) and electrically connected to the display unit (140).

A transparent anti-theft bracket for a marker light includes a transparent body having a first side and a second side opposite the first side, a first tapered opening extending from the first side toward the second side, a second tapered opening extending from the second side toward the first side, and a lip between the first tapered opening and the second tapered opening. The lip defines an opening connecting the first tapered opening to the second tapered opening. A first depth of the first tapered opening is less than a second depth of the second tapered opening.

The present disclosure discloses a light fixture and aims to provide a dual-bead rubber-covered string light. According to a technical solution, the dual-bead rubber-covered string light includes a plug, a wire, and light sources, the light sources are connected to the wire, a tail end of the wire is connected to the removable plug, a rubber wire conduit wrapping the wire is disposed on an outer wall of the wire, rubber beads wrapping the light sources by hot melting are disposed outside the light sources, and a ratio of a width of each rubber bead to a distance between the rubber beads is 1/6. The stability effect is strengthened on the basis of an original break-proof effect of the rubber wire conduit, such that the dual-bead rubber-covered string light is not prone to break even in long-term use or when frequently bent.