Abstract:
An apparatus for illumination having a housing suited for in ground use, which contains at least one lamp which is surrounded by a reflector, a controller for controlling the lamp and light changing means. To reduce the content of moisture, air containing evaporated water is able to be released from the lamp to the surroundings and only air without moisture is allowed to enter the in-ground lamp.
Abstract:
The present invention concerns a method for replacing optical elements and a light fixture containing at least one light source for illumination, including a system for fastening and replacing at least one optical element by means of magnetic attachment. It is the purpose of the invention to achieve rapid replacement of optical components in connection with a light fixture. Another purpose is that this replacement may occur without using tools and without the operator interfering with the preload of the fastening. The purpose may be achieved by a light fixture, if the optical element and the light fixture include at least two interacting magnetic interlocking pairs, the interlocking pairs including at least one permanent magnet, where at least the permanent magnet of the interlocking pair is disposed in a magnetically non-conducting material. Hereby it becomes possible for an operator to replace optical components in a very large number of light fixtures rapidly and without risking damage to the components.
Abstract:
The present invention relates to moving head projectors comprising a base, to which base a yoke is rotationally connected, which yoke is rotationally connected to a head, which head comprises a light source placed partly inside reflective means, which reflective means forms a light beam, which light beam passes through light forming means, which light beam furthermore passes through at least one lens before the light beam leaves the projector. The object of the invention is to achieve a primarily closed moving head projector, where air from the outside is prevented from entering the inner volumes of the projector. Furthermore, the object is to prevent the use of blowing means. Cooling of all optical and electrical components in the moving head projector can take place by means of natural heat convection and heat radiation. Thus, the moving head projector can operate without active cooling means e.g. without blowing means. This automatically leads to a very low projector noise level. In practise it means that the projector is absolutely silent during operation. Since no openings are necessary in the outer contour of the projector, the projector prevents air from entering the inner volumes of the projector. This is very important as the ambient air often is polluted and might contain not only dust but also droplets of oil leaving a layer of dirt on all components, which results in that the components have to be cleaned. Especially on the outside of the light source and the reflector a layer consisting of dust and oil film reduces the light output. As a consequence the light source and the reflector need service at regular intervals. By preventing air from entering the projector through air inlets, pollution inside the projector is avoided.
Abstract:
The present invention relates to a dual function light controller for a lighting system comprising a number of light emitting devices. The dual function light controller acts in a stand-alone mode of operation as an independent light controller controlling the lighting system and acts in a peripheral mode of operation act as a peripheral device which at least partially is controlled by a main controller controlling the lighting system. The dual function light controller comprises user switching means enabling a user to switch between the stand-alone mode of operation and the peripheral mode of operation. The present invention relates also to a lighting system comprising such dual function light control device.
Abstract:
The present invention relates to an illumination device comprising a number of light sources arranged in a first group and in a second and controlling means adapted to control the first group and said second group individually. The controlling means is further adapted to control of light sources based on an input signal indicative of at least a first effect function and a second effect function. The first effect function generates a first output related to the light sources and said second effect function generates a second output light sources. The first and second effect functions are stored in a memory in the in the illumination device. The that controlling means is adapted to control the first and the second group of light sources based on a priority schema and/or synchronizing schema both stored in a memory in the illumination device. The priority schema comprising a number of priority rules defining how the first effect function and the second effect must be executed in relation to each other, and the synchronizing schema comprises a number of synchronizing functions defining how the controlling means must execute the first effect function and the second effect function in relation to time and in relation to each other. The present invention relates also to a method of controlling such illumination device.
Abstract:
An LED device in which LED groups are located on a pixel board has calibration data for each LED stored both electrically and mechanically close to the actual LED. Preferably, each LED group has a number of LEDs of different colors on the pixel board, being electrically connected to a color controller. The color controller is connected to a power supply, and the pixel board has a memory circuit having the LED calibration data related to the LEDs stored therein. The color controller controls LEDs for generating light based on the LED calibration data stored in the memory circuit on said pixel board. Preferably, at least one of the LEDs is formed on a chip that contains the memory circuit for storing the calibration data.
Abstract:
An illumination device comprising a first light source generating first light beam having a first spectral distribution and a second light source generating a second light beam having a second spectral distribution. A first dichroic reflector is positioned in the first light beam and transmits a part of the first light beam and reflects a part of the second light beam. The first and second light beam propagates initially primarily in a first direction along an optical axis and reflecting means reflects the second light beam towards the dichroic reflector. The light sources, the dichroic reflector and reflecting means are mutually arranged such that the second light beam propagates primarily in a second direction substantially opposite the first direction and towards the first light source after being reflected by the reflecting means and such that the second light beam propagates substantial in the first direction after being reflected by the dichroic reflector.
Abstract:
The present invention relates to an illumination device comprising at least one light source generating a light beam and at least one light beam diffractor. The light diffractor is positioned at least partially in the light beam and adapted to diffract at least a part of the light beam. The light beam diffractor includes a first diffractor section and a second diffractor section which can be moved in relation to the light beam and independently of each other. The present invention relates also to moving head light fixtures and method of forming a light beam.