Lantern, and Method for Retrofitting a Lantern

• US 20120057341A1
• Filed: 10/19/2009
• Published: 03/08/2012
• Est. Priority Date: 10/30/2008
• Status: Abandoned Application

• Current Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Original Assignee: Osram Opto Semiconductors GmbH (Ams-Osram AG)
• Inventors: Block, Steffen, Neureuther, Christoph, Markytan, Ales
• Application Number:
  US13/127,218
• Publication Number:
  US 20120057341A1
• Time in Patent Office: Days
• US Class Current: 362/234
• CPC Class Codes: E01F 9/617 Illuminated or wired-up posts, bollards, pillars or like upstanding bodies or structures for traffic guidance, warning or control E01F9/559 takes precedence
• CPC Class Codes: F21S 4/00 Lighting devices or systems using a string or strip of light sources
• CPC Class Codes: F21S 6/006 for direct lighting only, e.g. task lighting
• CPC Class Codes: F21S 8/085 of high-built type, e.g. street light
• CPC Class Codes: F21V 19/001 the light sources being semiconductors devices, e.g. LEDs
• CPC Class Codes: F21V 23/04 the elements being switches safety devices F21V25/00
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: F21V 31/005 Sealing arrangements therefor
• CPC Class Codes: F21W 2131/103 of streets or roads
• CPC Class Codes: F21W 2131/109 of gardens
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: H05B 45/20 Controlling the colour of the light
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/16 by timing means
• CPC Class Codes: Y02B 20/30 Semiconductor lamps, e.g. solid state lamps [SSL] light emitting diodes [LED] or organic LED [OLED]
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection
• CPC Class Codes: Y10T 29/49716 Converting

Abstract

A lantern is disclosed that includes a lamp post (2) and at least two light emitting diodes (4) that are set up to emit, in operation, electromagnetic radiations (12) with electromagnetic spectra (17, 19) differing from one another, the light emitting diodes (4) being fastened in or on the lamp post (2).

Claims

1. A lantern, in particular a street lamp, comprising:

a lamp post; and

at least two light emitting diodes that are set up to emit, in operation, electromagnetic radiations with electromagnetic spectra differing from one another,

wherein the light emitting diodes are fastened in or on the lamp post.

2. The lantern according to claim 1, wherein the lantern has no lamp head.

3. The lantern according to claim 1, wherein the at least one light emitting diode is arranged on a top of the lamp post.

4. The lantern according to claim 1, wherein the lamp post has a top and wherein the lamp post tapers in the direction of its top.

5. The lantern according to claim 1, wherein a distance between two light emitting diodes in a direction of a main extent of the lamp post is at least 1/40th of the length of the lamp post.

6. The lantern according to claim 5, wherein at least one row of light emitting diodes is arranged along the direction of the main extent of the lamp post, each row comprising at least two light emitting diodes.

7. The lantern according to claim 1, wherein the lamp post has a bend.

8. The lantern according to claim 1, wherein the lamp post is designed at least partially as a reflector for the electromagnetic radiation generated in operation by the light emitting diodes.

9. The lantern according to claim 1, wherein a multiplicity of light emitting diodes is arranged as a ring, the ring enclosing the lamp post.

10. The lantern according to claim 1, comprising at least one sensor that is fastened on or in the lamp post, the sensor serving to determine at least one of the following measured variables:

temperature, air humidity, ambient brightness, visibility conditions.

11. The lantern according to claim 10, comprising a device that is set up to control and/or to regulate the electromagnetic spectrum and the intensity of the mixed light emitted by the light emitting diodes.

12. The lantern according to claim 11, wherein the device is set up to control and/or to regulate the electromagnetic spectrum and the intensity of the mixed light emitted by the light emitting diodes as a function of at least one of the following measured variables:

air humidity, temperature, ambient brightness, time of day, visibility conditions.

15. A method for operating a lantern according to claim 1, wherein at a prescribable time of day the color location of the mixed light emitted by the light emitting diodes of the lantern is changed from light with a low color rendering index to light with a high color rendering index.

13. A method for converting a lantern, comprising the steps of:

removing a lamp head from a lamp post of a lantern; and

fastening at least two light emitting diodes to the lamp post, that are set up to emit, in operation, electromagnetic radiations with electromagnetic spectra differing from one another.

14. The method according to claim 13, wherein a distance between two light emitting diodes in a direction of a main extent of the lamp post is at least 1/40th of the length of the lamp post.

16. A street lamp comprising:

a lamp post, and

at least two light emitting diodes that are set up to emit, in operation, electromagnetic radiations with electromagnetic spectra differing from one another,

wherein the light emitting diodes are fastened in the lamp post,

wherein a distance between two light emitting diodes in a direction of a main extent of the lamp post is at least 1/40th of the length of the lamp post, and

wherein the lamp post is designed at least partially as a reflector for the electromagnetic radiation generated in operation by the light emitting diodes.

17. The street lamp according to claim 16, comprising a device that comprises a microcontroller, wherein the device is configured to change the color location of the mixed light emitted by the light emitting diodes of the street lamp from light with a low color rendering index to light with a high color rendering index at a prescribable time of day.

18. The street lamp according to claim 17, comprising at least one sensor that is fastened on or in the lamp post, the sensor serving to determine at least one of the following measured variables:

temperature, air humidity, ambient brightness, visibility conditions.

19. The street lamp according to claim 18, wherein the device is set up to control and/or to regulate the electromagnetic spectrum and the intensity of the mixed light emitted by the light emitting diodes as a function of at least one of the following measured variables:

air humidity, temperature, ambient brightness, visibility conditions.

20. The street lamp according to claim 16, wherein:

the lamp post has a single recess,

all of the light emitting diodes are arranged in the single recess,

the light emitting diodes are covered with a cover plate,

the cover plate is transparent or milky, and

the cover plate terminates flush with a outer surface of the lamp post.