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.

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.

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.

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.

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.

A light source module provided includes a heat sink, a circuit board, a lamp shade, and a fixing member. The circuit board is provided with one side tightly attached to the heat sink, and the other side is provided with a plurality of light sources. The lamp shade is provided with a plurality of optical lenses, the plurality of the optical lenses are respectively formed by a plurality of recesses forming on a front surface of the lamp shade, and a plurality of arc protrusions corresponding to the plurality of the recess forming on a back surface of the lamp shade. The fixing member is configured to fix the lamp shade on the heat sink to receive the circuit board in a space defined by the lamp shade and heat sink. Further, a lighting apparatus is also provided.

A streetlight apparatus and method involves use of an anti-theft material for deterring theft of internal components of a streetlight. In some examples, the anti-theft material includes an expandable foam that expands to fill at least part of an internal space of the streetlight. In some examples, the anti-theft material includes a permanent ink that marks one or more internal components of the streetlight. The anti-theft material may be dispensed inside of the streetlight before someone tampers with the streetlight or once tempering is detected. In some examples, the anti-theft material includes a foam-expandable bag.

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 underwater lighting system includes a light housing. The light housing includes a weighted base having a bottom surface with a bottom edge and a cover. The cover and the weighted base cooperate to define a cover interior. The cover interior is waterproof. The light housing also includes a light source positioned within the cover interior. The underwater lighting system is configured to prevent a fishing lure or cast net from snagging on the underwater lighting system.

A light device for use on a flying disc entrapment device is described including a substantially ring-shaped structure and a first array including a plurality of light sources attached to the substantially ring-shaped structure. The light sources are directed toward a first side of the ring-shaped structure. The light device also includes a battery power source configured to provide power to the first array and a switch configured to control the illumination provided by the first array. In one embodiment, the light device includes a pump circuit electrically connected to the battery power source and the first array, wherein the pump circuit is configured to supply a pulsed current to the first array.