LED module with application-specific color setting

• US 8,132,939 B2
• Filed: 02/13/2009
• Issued: 03/13/2012
• Est. Priority Date: 02/26/2008
• Status: Expired due to Fees

• Current Assignee: Ledon Lighting Jennersdorf GmbH
• Original Assignee: Tridonic Jennersdorf GMBH (Zumtobel Group AG)
• Inventors: Platzer, Christoph, Skopec, Bernd
• Primary Examiner(s): Lee, Y My Quach
• Application Number:
  US12/371,295
• Publication Number:
  US 20090212313A1
• Time in Patent Office: 1,124 Days
• Field of Search: 362/231, 362/255, 362/256, 362/293, 362/311.02, 362/311.14, 257/98, 257/99, 257/100
• US Class Current: 362/293
• CPC Class Codes: A47F 11/10 Arrangements of light sources
• CPC Class Codes: F21K 9/00 Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
• CPC Class Codes: F21W 2131/405 for shop-windows or displays
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H01L 33/504 Elements with two or more wavelength conversion materials

Abstract

An LED module with a blue LED chip, over which is arranged a conversion layer, which has a luminous material mixture mixing a further proportion of greater wavelength into the blue light, so that a reddish or greenish or yellowish white light is emitted from the LED module, the emitted light of the LED module having a peak or secondary peak in the red or green or yellow range.

Claims

1. Facility for displaying goods such as food, having:

a goods display area for presenting and displaying the goods, and

a lamp arrangement for lighting the goods, the lamp arrangement having;

a housing or cover,

a lens, and

an LED module with a blue LED chip, over which is arranged a conversion layer, which has a luminous material mixture mixing a further proportion of greater wavelength into the blue light, so that a reddish or greenish or yellowish white light is emitted from the LED module, the emitted light of the LED module having a peak and at least a secondary peak in the red or green or yellow range, wherein the LED module is arranged in the housing, and wherein at least two different luminous materials, the luminous materials being chosen from the red region or green region or yellow region, and having different peaks, are mixed to obtain, in addition to the blue peak, a very broad spectrum, which covers all red tones or green tones or yellow tones.

2. Facility according to claim 1, wherein the goods display facility is a goods shelf, a counter, a refrigerator or a freezer cabinet.

3. Facility according to claim 1, wherein the lamp arrangement further comprises an aluminum profile and the LED module is mounted on the aluminum profile under the housing or cover.

4. Facility according to claim 1, wherein the LED module has at least one blue LED chip under a globe top, through which an appropriate color conversion occurs.

5. Facility for displaying goods such as food, having:

a goods display area for presenting and displaying the goods, and

a lamp arrangement for lighting the goods, the lamp arrangement having;

a housing or cover,

a lens, and

an LED module with a blue LED chip, over which is arranged a conversion layer, which has a luminous material mixture mixing a further proportion of greater wavelength into the blue light, so that a reddish or greenish or yellowish white light is emitted from the LED module, the emitted light of the LED module having a peak and at least a secondary peak in the red range or green range or yellow range to generate a specific color setting or a specific spectrum in the red range, in the green range, and in the yellow range for lighting meat, vegetable, or cheese products, contributing to an ideal goods presentation, wherein the LED module is arranged in the housing.

6. Facility for displaying goods such as food, having:

a goods display area for presenting and displaying the goods, and

a lamp arrangement for lighting the goods, the lamp arrangement having;

a housing or cover,

a lens, and

an LED module with a blue LED chip, over which is arranged a conversion layer, which has a luminous material mixture mixing a further proportion of greater wavelength into the blue light, so that a reddish or greenish or yellowish white light is emitted from the LED module, the emitted light of the LED module having a peak and at least a secondary peak in the red range or green range or yellow range to generate a specific color setting or a specific spectrum in the red range, in the green range, and in the yellow range for lighting meat, vegetable, or cheese products, contributing to an ideal goods presentation, wherein at least two different luminous materials, each chosen from the red region or green region or yellow region, and having different peaks, are mixed, and wherein the LED module is arranged in the housing.