Abstract: A lamp device comprising illuminant, which emits a primary radiation on applying a voltage thereto and solid particles, at least partly enclosing the illuminant and which interact with the primary radiation. The particle number density changes in at least one direction away from the illuminant from a first particle number density to a second particle number density.

Abstract: A lamp device comprising illuminant, which emits a primary radiation on applying a voltage thereto and solid particles, at least partly enclosing the illuminant and which interact with the primary radiation. The particle number density changes in at least one direction away from the illuminant from a first particle number density to a second particle number density.

Abstract: The invention relates to an illuminant (40) comprising a standardised connection socket (42) and a cover (50) consisting of a light-permeable material defining an inner chamber (52). A light chip arrangement (10; 110) comprising at least one semiconductor structure (14; 114) is contacted between contact regions (48a, 48b) of at least two supply lines (44a, 44b).

Abstract: The invention relates to a method for electrically contacting an arrangement of a plurality of semiconductor structures comprising contact regions therefor and emitting electromagnetic radiation when a voltage is applied thereto. According to said method, a viscous, hardenable material is applied to the arrangement of a plurality of semiconductor structures and hardened to form a material web. The invention also relates to a luminous element comprising a plurality of semiconductor structures (12) which are interconnected by means of an electrical contacting element (34) and emit visible electromagnetic radiation when a voltage is applied thereto. The electrical contacting element (34) at least partially comprises at least one material web (34) obtained by hardening a material which is viscous in its basic state.

Abstract: A light-emitting diode arrangement includes one or more LED crystal pieces that are mechanically held by leads and connecting lines.

Abstract: A light-emitting element, in particular a light-emitting diode, having at least one light-emitting chip crystal, in particular a semiconductor crystal, is described. At least free surfaces of the light-emitting chip crystal are covered with an inert material—liquid fluid—which is in direct contact with the light-emitting chip crystal.

Abstract: A pair of binoculars has lenses constituting optical filters with a transmissivity range within the wavelength range between about 650 nm and at least 800 nm and also with an additional transmissivity band within a wavelength range from about 310 nm to about 600 nm. The objects viewed with such a pair of binoculars appear as an image that is carried by a satin-finished metallic surface.

Abstract: An objective for use in a night sight device has a front lens group and a rear lens group. The lenses of the front lens group have essentially equal diameters, whereas the lenses of the rear lens group have increasingly large diameters starting from the front end of the lens group.

Abstract: A semiconductor light-emitting means (56) comprises a transparent substrate (12), on which light-emitting diodes (26, 28) are arranged. These and electrodes (14, 36) used for contacting them are transparent.

Abstract: A light-emitting element, in particular a light-emitting diode, having at least one light-emitting chip crystal, in particular a semiconductor crystal, is described. At least free surfaces of the light-emitting chip crystal are covered with an inert material—liquid fluid—which is in direct contact with the light-emitting chip crystal.

Abstract: An objective for use in a night sight device has a front lens group and a rear lens group. The lenses of the front lens group have essentially equal diameters, whereas the lenses of the rear lens group have increasingly large diameters starting from the front end of the lens group.

Abstract: A light-emitting diode arrangement includes one or more LED crystal pieces that are mechanically held by leads and connecting lines.

Abstract: A pair of binoculars has lenses constituting optical filters with a transmissivity range within the wavelength range between about 650 nm and at least 800 nm and also with an additional transmissivity band within a wavelength range from about 310 nm to about 600 nm. The objects viewed with such a pair of binoculars appear as an image that is carried by a satin-finished metallic surface.

Abstract: An optical filter has, in addition to a pass-band in the wavelength range of chlorophyll fluorescence between about 650 and at least 800 nm, an additional pass-band in a wavelength range of about 520 to about 560 nm. The additional pass-band serves to utilize the physiological peculiarity of the human eye that it is “switched” into a greater sensitivity in darkness by green radiation in the wavelength range around 540 nm, which greater sensitivity then also benefits the detection of chlorophyll fluorescence. Radiation in the wavelength range around 540 nm always passes proportionately through the filter, as a result of which the detection of chlorophyll fluorescence is markedly facilitated. The same filter may also be used for the observation of the green image that is produced by conventional night-vision appliances.