Abstract: A method of producing an infrared lamp for a vehicle night vision system, where the lamp has a tube which surrounds a radiation source that emits infrared radiation and light radiation. The tube has an infrared-transmitting coating. By setting specific process parameters in the coating process and/or by post-treating the coated tube, holes are formed in an irregular arrangement in the coating. The holes have at least in some areas a defined average size and a defined average surface density.

Abstract: A lamp, containing ?100 ppm Hg, includes a burner chamber having an axis, the axis having a section ?0.05 mm. The burner chamber has a recess oriented toward a light arc produced in the burning chamber to suppress arc curvature. The lamp has an arc-luminescence profile of luminescence (measured in cd/m2)/mm with an average slope over that section which is ?|300,000,000| (cd/m2)/mm. Preferably, the profile maximum value is ?90,000,000 cd/m2. In one embodiment, the arc-making device includes two electrodes disposed for producing the light arc across their two tips, the depth of the recess being sufficiently small so as not to extend between the two tips.

Abstract: The invention relates to a lamp (10) and a vehicle headlight. The lamp (10) comprises a discharge vessel (16) with electrodes (20) arranged at a distance for creating an arc discharge. The envelope (22) has cylindrical shape with a cylinder wall extending straight in longitudinal direction. A reflective barrier (28) is arranged at least partly surrounding said discharge vessel for reflecting light emitted from the arc discharge. To obtain an optimally focused reflection, the discharge vessel (16) is configured such that the arc (50) is essentially straight. The reflective barrier (28) also extends straight in longitudinal direction.

Abstract: A temperature-resistant fibre-optic-coupled IR measurement probe and an FTIR measurement system with a connected temperature-resistant fibre-optic-coupled IR measurement probe are presented. The temperature stability is achieved by mounting the optical fibre sections (13, 14) in the temperature-controlled probe head housing (12) without any fastening points. The optical fibres are manufactured using a restoring force which acts along the optical fibre axes (22,23) in the direction of the probe element. In the event of a change in temperature, the optical fibres expand in the probe head housing. The probe head housing should be dimensioned in such a manner that, on the one hand, expansion of the optical fibres without damage is ensured and, on the other hand, the optical fibre ends (15,16) are mounted in front of the probe element (11) using a restoring force.

Abstract: The invention relates to a lamp for a vehicle headlamp with a low-beam function, which comprises an outer tube (3) and a light-emitting region (4) and which emits at least visible light of varying color from a number of regions of the outer tube (3), wherein at least a partial coating (2) is arranged on the outer tube (3) in such a way that, when implementing the low-beam function, the region of the traffic space which lies below the bright-dark cut-off (F) can be illuminated in defined regions with visible light of varying color.

Abstract: The invention relates to a lamp that radiates visible light and infrared light. According to the invention, the lamp bulb (4) of the lamp comprises at least a first region (6) which is at least partly permeable to infrared light and at least partly impermeable to visible light, and at least a second region (9) which is wholly or partly permeable at least to visible light.

Abstract: A description is given of a method of producing an infrared lamp (1) for a vehicle night vision system (12), in which a tube (2) which surrounds a radiation source (3) that emits infrared radiation and light radiation is provided with an infrared-transmitting coating (10). It is ensured, by setting specific process parameters in the coating process and/or by post-treating the coated tube (2), that holes (11) form in an irregular arrangement in the coating (10), which holes have at least in some areas a defined average size and a defined average surface density. A description is furthermore given of a corresponding infrared lamp (1) and of a headlamp comprising such an infrared lamp (1) for a vehicle night vision system (12).

Abstract: A lamp radiates visible light and infrared light. The lamp bulb of the lamp includes at least a first region which is at least partly permeable to infrared light, and at least partly impermeable to visible light. At least a second region of the bulb is wholly or partly permeable at least to visible light.

Abstract: The invention relates to a Hg-free Lamp, whereby the lamp has an arcluminescence profile of Luminescence (measured in cd/m2)/mm with at least one section, in which said at least section is at least ?0.05 mm and ?0.5 mm, and the slope in Luminescence/mm for said at least one section is ?1300.000.0001 (cd/m2)/mm.

Abstract: A lamp for night sight applications includes a bulb that transmits both visible and infrared light. The lamp also includes a coating that reflects middle infrared radiation and is transparent to near infrared radiation to increase output efficiency in the near infrared spectral range. There may be a second coating that blocks visible light on part of the lamp—and the second coating may be on an external bulb, while the first coating is on an internal bulb. The lamp is preferably used as a vehicle headlamp with a reflector that reflects near infrared radiation and is transparent to visible light. The second coating and reflector may be on the lower part of the lamp.

Abstract: A lamp (10, 11) for a motor vehicle headlight is described. The lamp (10, 11) comprises a quartz bulb (3, 12, 17) narrowly enclosing a light source (1, 2) and possibly an outer bulb (4) surrounding said quartz bulb (3). Negative lenses (7, 8, 14, 15, 16) extending in the direction of a longitudinal axis (1.) of the lamp (10, 11) are present in or at the two lateral surfaces (6, 13) of the quartz bulb (12, 17) and/or of the outer bulb (4). These lenses (7, 8, 14, 15, 16) are designed such that the light source (1, 2) is optically reduced in size in at least one direction.

Abstract: A lamp (1, 11, 14, 17) for a motor vehicle headlight is described. The lamp (1, 11, 14, 17) comprises a bulb (3) surrounding a light source (4) and a lamp base (2) arranged at an end of the bulb (3) and serving to support the lamp (1, 11, 14, 17) inside a reflector (20) of the headlight. At least one lens structure (7, 12, 15, 18) is present in or at an upper side (O) and/or lower side (U) of the bulb (3). This lens structure (6, 12, 15, 18) is constructed such that at least a portion of the light radiated by the light source (4) in the direction of a region of the reflector (20) close to the lamp base is redirected into a region of the reflector lying farther to the front.

Abstract: The invention relates to a lamp (1) within a vehicle headlamp for a night-sight application, with a bulb (5, 6) that generates visible light and infrared light. In accordance with the invention, the bulb (5) is equipped with a coating (8) that reflects middle infrared radiation and is transparent to near infrared radiation. The output efficiency of the lamp (1) is thereby increased, in particular in the near infrared spectral range.

Abstract: The invention relates to a lamp that radiates visible light and infrared light. According to the invention, the lamp bulb (4) of the lamp comprises at least a first region (6) which is at least partly permeable to infrared light and at least partly impermeable to visible light, and at least a second region (9) which is wholly or partly permeable at least to visible light.