A lock assembly for use in a vehicle includes a key having a key head and a key shaft. The key shaft defines a recess. A lock cylinder defines a slot and a channel. The slot is in communication with a first end of the channel. A switch door is positioned to cover the slot. A light source is positioned at a second end of the channel. The light source is positioned to illuminate through the channel. A sensor is configured to detect the key. The sensor is coupled with the light source. The sensor is configured to actuate the light source based on a location of the key. A luminescent structure is positioned on the key shaft within the recess.

A locking device can be embedded flush into a surface and is intended for locking flaps of an aircraft. The locking device includes a plate and a locking element, which is actuatable thereby. In a locked state of the locking device, the plate is flush with the surface and, in an open state, the plate projects from the surface. At least some faces of the locking device, which are situated on an inside with respect to the surface in the locked state and are visible only in the open state, are coated with photoluminescent material.

A fluorescent doorknob assembly for illuminating a doorknob in a darkened environment includes a doorknob that is rotatably mounted on a door for opening the door. A light emitter is coupled to the doorknob. The light emitter is comprised of a fluorescent material thereby facilitating the light emitter to emit light in a darkened environment. In this way the light emitter illuminates the doorknob thereby making the doorknob visible to a user a night.

A tell-tale indicator for aiding an operator in locating and operating a secondary hood latch release in a gap between a vehicle body and an openable hood includes an indicator configured to locate the secondary hood latch release such that the secondary hood latch release is readily locatable and operable to open the hood. The indicator may be further configured to display an operating direction of the secondary hood latch release.

A tell-tale indicator for aiding an operator in locating and operating a secondary hood latch release in a gap between a vehicle body and an openable hood includes an indicator configured to locate the secondary hood latch release such that the secondary hood latch release is readily locatable and operable to open the hood. The indicator may be further configured to display an operating direction of the secondary hood latch release.