Abstract: A light or lamp comprises a plurality of light sources, each said light source for emitting light of different color upon activation; and an electrical circuit connected to the light sources for alternately activating each light source responsive to successive accelerations, such as changes in direction of movement or vibrations, of the lamp by a user. A lamp for sports fans emits the team's colors successively with each movement such that a group of fans synchronously moving the lamps produce a field of similar color and movement.

Abstract: The combination if a useful article, such as a purse, pack, clothing, or footwear, and a logo illuminating device including a housing attached to the article including a logo and a circuit including a battery, a logo illuminating light source for back illuminating the logo and a switch unit including a switch having an on position activating the logo illuminating means with energy from the energy source responsive to use of the article. In one embodiment, the useful article includes a compartment; and access means for selectively creating an opening for accessing the compartment, and the logo is visible externally the compartment, and the switch is activated by accessing the compartment. The user may turn off the device.

Abstract: Wearable light device for providing additional light for activities in low light includes a wearable mount (20) including a light system (30) and power source (40). Light system (30) includes one or more arrays of light sources such as light-emitting diodes (33). Photo sensor (34) detects ambient light or emitted light returned from a reflective surface and causes control circuit (45) to dim light emission.

Abstract: Wearable light device for providing additional light for activities in low light includes a wearable mount (20) including a light system (30) and power source (40). Light system (30) includes one or more arrays of light sources such as light-emitting diodes (33). Photo sensor (34) detects ambient light or emitted light returned from a reflective surface and causes control circuit (45) to dim light emission.

Abstract: Wearable light device for providing additional light for activities in low light includes a wearable mount (20) including a light system (30) and power source (40). Light system (30) includes one or more arrays of light sources such as light-emitting diodes (33). Photo sensor (34) detects ambient light or emitted light returned from a reflective surface and causes control circuit (45) to dim light emission.