Abstract: The invention relates to a reflector, in particular for discharge luminaires, in the case of which at least two facets direct the light from an upper and a lower region of the discharge lamp in the same direction.

Abstract: The invention relates to a reflector, in particular for discharge luminaires, in the case of which at least two facets direct the light from an upper and a lower region of the discharge lamp in the same direction.

Abstract: The invention comprises an optical arrangement for illumination purposes, in particular for a stepped lens spotlight, comprising a stepped lens with a light-diffusing element, in particular a diffusing screen, in which the diffusing screen is arranged in a first region and the stepped lens is arranged in a second region, and in which, with the change in the shape of the light impinging on the optical arrangement and/or the size of the light illuminating the optical arrangement, it is possible to set the aperture angle of the light emerging from the optical arrangement, in particular between two limit values, a smaller ?Sp and a larger ?F1.

Abstract: The invention relates to a light reflector comprising a reflective surface having facets at least in sections, and a region for arranging at least one luminous means, wherein facets in a first region, closer to the region for arranging at least one luminous means, the region close to the luminous means, have a cylindrical shape, and facets in a second region, more remote from the region for arranging at least one luminous means, the region remote from the luminous means, have a spherical shape.

Abstract: In order to provide an optical arrangement having a Fresnel or stepped lens such that its optical properties can be configured more diversely, provision is made of a diffusing screen, preferably with an adapted predefined diffusing behavior.

Abstract: A Fresnel lens spotlight whose emitted light beam has a variable aperture angle, having a reflector, a lamp and at least one Fresnel lens is provided. The at least one Fresnel lens has a negative focal length and a virtual focal point.

Abstract: In order to produce a Fresnel lens spotlight whose emitted light beam has an adjustable aperture angle, having a preferably ellipsoid reflector, a lamp and at least one Fresnel lens, which has a more compact form and is thus not only more space-saving but is also lighter than the conventional Fresnel lens spotlight, a lens with a negative focal length and a virtual focal point is used as the Fresnel lens.

Abstract: A fresnel spotlight with an adjustable aperture angle of the emerging light beam, an ellipsoid reflector, a lamp, and at least one fresnel lens is provided. The fresnel lens includes a diffuser.

Abstract: In order, in the case of a Fresnel lens spotlight with an adjustable aperture angle of the emergent light bundle and having a preferably ellipsoidal reflector, a lamp and at least one Fresnel lens, to provide a homogeneously illuminated light field in conjunction with a high efficiency, in particular including in the flood position, it is provided that the Fresnel lens has a diffusing screen.

Abstract: The invention relates to a reflector having reflection surface with facets for reflecting light beams and for generating a light field with a hollow basic element which presents a first end for accommodating an illuminant (mounting end), as well as a second end which represents a light outlet aperture, whereby for generating a specific light field contour with a given form of illuminant the forms of individual facets and their position relative to the optical axis of the reflector are selected specifically.