An improved light adapted to be connected to a wheel of, e.g., a bicycle. In preferred form, the light is fixed to the wheel in a manner that orients the light's battery on an axis positioned substantially radially of the wheel, and that orients the light's battery radially inward of the light's bulb relative to the wheel's axis. A switch spring is provided in the light's housing that normally biases the battery out of electrical contact with the bulb when the wheel is not rotating, i.e., when t...

The invention concerns a light within whose handle-forming plastic housing (2) a button-cell battery (3) provided with a circumferential and a center surface pole can be brought into the switch-contact position against the force of a compression spring (6), a portion of the center surface pole (MP) of the button-cell battery coming into contact with a portion of a ring-shaped contact blade (9), the compression spring being arranged concentrically to the ring-shaped section (9') which rests on th...

A light includes a light tube, a housing for receiving the light tube, a handle pivotally linked to the housing, a hook pivotally linked to the handle, a U-shaped brace pivotally linked to the housing; a cap pivotally linked to the U-shaped brace, a hollow post threadably engageable with the cap, a tripod attached to the cap so that the tripod is hidden in the hollow post when the is cap is engaged with the hollow post, a hollow base being pivotally linked to the hollow post and a clip pivotally...

A light is disclosed which may be an aircraft light, comprising a base 2 for mounting the light, a chassis 8 upstanding from the base, a circuit board 10 mounted upon an outer face of the chassis and at least one solid state emitter--and more preferably an aray of LEDs 24, 26--mounted upon the circuit board. The invention provides a light which is constructionally convenient but can provide a clean beam pattern.

The shelf light is for fitting in a shelf of an article of furniture. It comprises a two part body and a light emitting diode assembly housed within the body. The part of the body has an integral cover plate which in use lies against one major surface of the shelf and the other part comprises a flange which is arranged in a plane parallel to, but spaced from, the plane of the cover plate and which in use lies against the other major surface of the shelf.

A battery-powered light including a body, a light source and a control circuit. The body includes a battery support portion and houses the light source. The battery support portion is operable to physically support a battery pack. The light source is electrically connectable to the battery pack and able to receive a discharge current from the battery pack. The light source also is operable to emit light. The control circuit is supported by the body and is operable to control the discharge curren...

A pilot light as might be used for monitoring an industrial control circuit having a normal signal circuit connectable to a control circuit element for illuminating a lamp of the pilot light when such control circuit element is operated, and also having a test circuit connectable to a test switch for testing the integrity of the lamp when the test switch is operated. A circuit for supplying current to the lamp is light coupled to both the normal signal circuit and the test circuit.

A light controlled light modulator is disclosed wherein a low intensity, circularly polarized driving light beam can be used to modulate or switch a linearly polarized main light beam. The main beam can be as much as three orders of magnitude more powerful than the driving beam, yet the response time is measured in picoseconds. The modulator itself comprises a coherent rotator and a polarizer, and modulation is accomplished by rotating the plane of polarization of the main beam under the control...

A light fixture apparatus includes a support frame mounted to the wall and an auxiliary or examination light source coupled to the support frame and movable from a first stored position to a second deployed position. A first switch in series with the auxiliary light source is opened when the auxiliary light is in the stored position and closed when the auxiliary light is in the deployed position. The light source has three degrees of adjustment. The light source is connected to one end of telesc...

A projection light valve system comprises a ring of light sources directed toward a parabolic reflector. The reflector reflects the light to a point of focus. An optical means, such as a lens, directs the light to a beam expander which expands the beam to irradiate a light valve. Multiple arrangements can be used to obtain a multicolor image.