A grenade firing mechanism 12 has a body 18 defining an internal chamber 32 in which a firing pin structure 40 is located. The firing pin structure is actuated by an inertia toggle 64 having a first end contained within the chamber and a second end region 72 which projects from the body. A safety lever 16 is releasably mounted to the second end region 72 of the inertia toggle in an operative position to prevent the inertia toggle moving to actuate the firing pin structure. A lever spring 104 is operative to eject the lever from the inertia toggle allow the firing pin structure to be actuated when the grenade is deployed. The lever 16 carries an abutment pin 120 which extends through the body to engage the firing pin structure 40 to inhibit the firing pin structure moving in a firing direction when the lever is in its operative position. The inertia toggle may have a convex abutment surface which engages the firing pin structure. The firing mechanism is particularly suited to a sound flash distraction grenade.

A visual impairment device includes a power supply, an intense light source having two or more beams of intense light with different peak wavelengths and a wavelength bandwidth less than 50 nm, a modulator and a control circuit. The modulator operates to modulates the two or more beams of intense light to produce a spatial array such that at least one of the beams used to produce the spatial array has the requisite irradiance to cause visual impairment. In some examples, the beams of intense light are laser beams. Also included are methods of using the device to cause visual impairment of an intruder who enters a visual impairment zone created by said device.

An electronic irritation device includes a plurality of electronic irritation signal modules. Each of the modules has at least one emitter for emitting optical or acoustic irritation signals, and additionally a connection device for coupling the plurality of irritation signal modules to one another and an unlocking device for automatically unlocking the connection device in order to decouple the plurality of irritation signal modules from one another and thereby distribute them spatially. Distributing a plurality of irritation signal modules makes it possible to increase the probability of an irritation effect upon deployment of a single irritation device.

An electronic dazzling element has at least one optical emitter for emitting light pulses, which contains an electronic light-emitting device for generating light pulses, and a control device for controlling the light-emitting device of the optical emitter. In order to reduce the brightness reduction of the light pulses as a distance from the dazzling element increases, the optical emitter is configured to emit a collimated light beam. In order to simultaneously achieve the dazzling effect in as large a spatial region as possible, a beam direction of the collimated light beam may be changed.

An electronic stun grenade (10) comprising a casing (11) and a means for generating light (13), wherein the means for generating light (13) is mounted onto an exterior surface of the casing (11). This allows the interior volume defined by the casing (11) to be more effectively used for containing a means for powering the means for generating light (13). Particularly suited to applications requiring compact stun grenades, such as man portable or weapon launched devices.

A dazzling system has at least one strobe illuminator and multiple imaging optics, which may be of various types. All strobe illuminators are synchronized to each other and the imaging optics are synchronized to all strobe illuminators. The imaging optics may be in-phase or out-of-phase. Various embodiments are possible depending on the application, but in all applications the strobe illuminator(s) disrupt the vision of unauthorized persons while allowing users of the system to view a scenario.

A device for discharging the contents of a spray canister, wherein the device has a safety button, and wherein the safety button is configured to guard against accidental discharge of the contents of the spray canister. The safety button is further configured to snap into position either on a safety ON or OFF position and stay in either position until toggled. A discharge trigger is configured to be operated by pushing the safety button sideways to the safety OFF position and then pushing the discharge trigger forward to expel the content of the spray canister. A tumbler tongue is configured to slide into the central housing opening when the safety button is in the ON position, rendering the discharge trigger immovable. A cam follower pin is configured to slide along the tumbler cam contour.

Examples herein describe systems and methods for securing an opening and disorienting an active shooter. A command device can send a deployment command to a zone in a building. In response, canopies in the zone can deploy a roll-up door made of Kevlar that electromagnetically locks shut. The canopies can include blindingly bright lights and deafening sirens that disorient the shooter. The doors can block off rooms or other areas of a school where children can huddle safely until the shooter is apprehended. Canopies without doors can also be used at some openings to disorient the shooter.

Embodiments of the invention include a drone system or method for distracting a threat with a light source. In some embodiments, an environment can be scanned with a sensor that produces sensor data. A threat within the environment can be identified from the sensor data, and the location of the threat can be determined. The light source can be aimed toward the threat; and light may be directed from the light source toward the threat.

A flash housing for photographic purposes is disclosed. The flash housing comprises a flash forming element arranged to generate a flash light and a lens element arranged to let at least part of the generated flash light out of the flash housing so as to obtain the flash. The obtainable flash light has a beam lobe with a controllable beam angle. A simulation light generator element is arranged for simulation of the obtainable flash light beam lobe having the controllable beam angle.