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US 8,998,450 B2Granted
Bendable luminous modules and method for producing bendable luminous modules
AssigneeOSRAM GmbH
InventorThomas Preuschl
Life of this patent
Estimating the term…
Abstract
A light module (1; 14), comprising a carrier (8, 10) for mounting at least one semiconductor source (5), in particular a light emitting diode, wherein: the carrier (8, 10) has a flexible printed circuit board (10), the flexible printed circuit board (10) is bonded face-to face to at least one base plate, (8) and the carrier (8, 10) can be bent along at least one predetermined bending line (3; 3a-3e), the base plate (8) can be bent along the at least one bending line, (3; 3a-3e), the base plate (8) has at least one cutout (9) along the bending line (3; 3a-3e) and the flexible printed circuit board (10) has at least one strip (11; 15) which crosses at least one of the cutouts (9).
Claims18
A light module comprising:
- a plurality of semiconductor light sources;
- and
- an elongated carrier comprising:
- an elongated base plate capable of being bent along a plurality of bending lines, the bending lines being positioned symmetrically along a length of the elongated base plate on both sides of a longitudinal axis of the elongated base plate, the elongated base plate being shaped so as to form a plurality of tab-shaped regions, each tab-shaped region being located on a side of a respective bending line away from the longitudinal axis and with an edge thereof being along one bending line, the plurality of bending lines not being aligned with one another, the elongated base plate having a plurality of cutouts, at least one cutout being located along each bending line;
- and
- an elongated flexible printed circuit board bonded face-to-face to the elongated base plate, the elongated flexible printed circuit board being shaped so as to form a plurality of tab-shaped regions, each tab-shaped region of the elongated flexible printed circuit board coinciding with and bonded to a single tab-shaped region of the elongated base plate, at least one semiconductor light source being mounted to each tab-shaped region of the elongated flexible printed circuit board, the printed circuit board having a plurality of strips, a first end of each strip being connected to a respective single tab-shaped region of the elongated flexible printed circuit board on a first side of a respective bending line, a second end of each strip being positioned on a second side of the respective bending line closest to the longitudinal axis so that the strip crosses one of the cutouts perpendicular to the respective bending line, each strip being capable of being bent along the respective bending line.
3 more elements
A method for producing a light module comprising:
- forming an elongated base plate capable of being bent along a plurality of bending lines, the bending lines being positioned symmetrically along a length of the elongated base plate on both sides of a longitudinal axis of the elongated base plate, the elongated base plate being shaped so as to form a plurality of tab-shaped regions, each tab-shaped region being located on a side of a respective bending line away from the longitudinal axis and with an edge thereof being along one bending line, the plurality of bending lines not being aligned with one another, the elongated base plate having a plurality of cutouts, at least one cutout being located along each bending line;
- forming an elongated flexible printed circuit shaped so as to form a plurality of tab-shaped regions, each tab-shaped region of the elongated flexible printed circuit board shaped to coincide with a single tab-shaped region of the elongated base plate, the printed circuit board having a plurality of strips, a first end of each strip being connected to a respective single tab-shaped region of the elongated flexible printed circuit board on a first side of a respective bending line, a second end of each strip being positioned on a second side of the respective bending line closest to the longitudinal axis so that the strip crosses one of the cutouts perpendicular to the respective bending line, each strip being capable of being bent along the respective bending line;
- laminating the elongated flexible printed circuit board face-to-face onto the elongated base plate so that each tab-shaped region of the elongated flexible printed circuit board coincides with a single tab-shaped region of the elongated base plate;
- and
- mounting at least one semiconductor light source to each tab-shaped region of the elongated flexible printed circuit board.
2 more elements
Dependencies are inferred from the claim text.