Illumination device for a vehicle comprises a first lamp module (30) and a second lamp module (40), each having a number of light-emitting diodes (31, 41). The second lamp module surrounds the first lamp module. The lamp modules are staggered in relation to each other and are separately fixed so that they can be individually replaced. Preferred Features: The second lamp module is optically set back behind the first lamp module.

A lighting device (30) having a housing (12) which includes a lamp means, a battery housing to receive at least one battery and a switch means to open and close a circuit between said lamp means and terminals of said at least one battery when located in said housing. Said lighting device includes a lanyard (110, 112) attached to said housing (12) characterised by said lanyard having a proximal end attached to said housing (12) and a distal end, whereby said distal end or a portion of said lanyard (110, 112) is adapted to be releasably attached to said housing (12).

An LED lighting device is provided which is capable of being connected to a network and being controlled by a host computer also connected to the network. The lighting device has several lifespan expanding features such as including several extra LEDs such that as the LEDs of the lighting device degrade over time more LEDs can be turned on thus allowing a constant luminosity to be maintained.

A reflector lamp is described which consist essentially of a light source, in particular in the form of a high-pressure gas discharge lamp (HID [high intensity discharge] lamp or UHP [ultra high performance] lamp), as well as a main or secondary reflector ( 12 ), and a primary reflector ( 25 ) by means of which light from the light source ( 22 ) can be reflected through the light source ( 22 ) onto the main reflector ( 12 ). The primary reflector ( 25 ) is arranged such that those regions of the main reflector ( 12 ) are obscured which are optically inactivated regions, for example because of a lead-through and/or a fastening device for the lamp, which have no reflection properties, or which have reflection properties that adversely affect the radiation characteristic of the reflector lamp. The reflector lamp is particularly suitable for projection applications because of its high luminous efficacy. Furthermore, a substantially automated and accordingly cost-effective assembly of the lamp is possible.

A vehicle headlight is described with a reflector housing ( 1, 21 ) and a front glass ( 22 ) which together enclose a headlight inner space. The headlight has a reference surface ( 15, 35 ) for defining the position of a lamp ( 7, 30 ) having a lamp body ( 8, 31 ) and a lamp base ( 9, 37 ) in the headlight The headlight is constructed such that the lamp ( 7, 30 ) can be inserted such that the lamp base ( 9, 37 ) is positioned in front of the lamp body ( 8, 31 ), viewed against the direction of radiation of the headlight In addition, a lamp ( 7, 30 ) is described which is constructed such that it can be inserted into the vehicle headlight in the manner described.

Complementary, raised and recessed mountings of the support (1) and lamp unit, interlock. They are held together by a fastening component (14). This is fixed in the mounting region.

A method of fabricating light-sensing devices including photodiodes monolithically integrated with CMOS devices. Several types of photodiode devices (PIN, HIP) are expitaxially grown in one single step on active areas implanted in a common semiconductor substrate, the active areas having defined polarities. The expitaxially grown layers for the photodiode devices may be either undoped or in-situ doped with profiles suitable for their respective operation. With appropriate choice of substrate materials, device layers and heterojunction engineering and process architecture, it is possible to fabricate silicon-based and germanium-based multi-spectral sensors that can deliver pixel density and cost of fabrication comparable to the state of the art CCDs and CMOS image sensors. The method can be implemented with epitaxially deposited films on the following substrates: Silicon Bulk, Thick-Film and Thin-Film Silicon-On-Insulator (SOI), Germanium Bulk, Thick-Film and Thin-Film Geranium-On-Insulator (GeOI).

The device has two parts (12,14) that can be plugged together and that can be coupled by a sliding element (16) fed into one connector part, especially transversely to the plugging direction, and a securing element (24) movable between a starting position and an end position in which it fixes the sliding part in its end position. The securing element is locked in its starting position and is only released for movement to its end position with the connector parts coupled.