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US 9,070,311 B2Granted
Illumination device with radiation reflectors arranged modularly to form a radiation-reflecting luminous area
AssigneeOSRAM Opto Semiconductors GmbH
InventorsGuenter Kirchberger, Ludwig Ploetz, Markus Zeiler, Hubert Ott
Life of this patent
Estimating the term…
Abstract
An illumination device includes a number of radiation reflectors that are each irradiated by at least one light source. The radiation reflectors are shaped in such a way that they can be combined modularly to form a radiation-reflecting luminous area.
Claims29
An illumination device for a display panel, comprising:
- a plurality of radiation reflectors, each reflector being irradiated by at least one light source,
- wherein the radiation reflectors are arranged modularly to form a radiation-reflecting luminous area along a first plane for backlighting the display panel;
- and
- wherein at least two radiation reflectors overlap laterally in places along the first plane, so that one of the at least two radiation reflectors covers over the at least one light source that illuminates the other radiation reflector, when viewed along a direction perpendicular to the first plane of the radiation-reflecting luminous area.
1 more element
A method of illuminating an object, the method comprising:
- providing an illumination device comprising a plurality of radiation reflectors that are each irradiated by a respective light source, wherein the radiation reflectors are arranged modularly to form a radiation-reflecting luminous area extending along a first plane;
- generating light from light sources to irradiate the radiation reflectors;
- and
- reflecting the light off of the radiation-reflecting luminous area in a first direction substantially perpendicular to the first plane and toward the object so as to illuminate the object;
- wherein at least two radiation reflectors overlap laterally in places along the first plane;
- and
- wherein one of the at least two radiation reflectors covers over the respective light source that illuminates the other radiation reflector, when viewed along the first direction;
- and
- wherein reflecting the light comprises backlighting a display panel or backlighting a display.
6 more elements
A display apparatus comprising:
- an illumination device comprising a plurality of radiation reflectors that are each irradiated by a respective light source, wherein the radiation reflectors are arranged modularly to form a radiation-reflecting luminous area, wherein at least two radiation reflectors overlap laterally in places along the radiation-reflecting luminous area and wherein one of the at least two radiation reflectors covers over the respective light source that illuminates the other radiation reflector when viewed along a direction perpendicular to the radiation-reflecting luminous area;
- and
- a display or display panel adjacent the illumination device.
Dependencies are inferred from the claim text.