Lamp

• US 9,052,076 B2
• Filed: 02/04/2010
• Issued: 06/09/2015
• Est. Priority Date: 02/10/2009
• Status: Expired due to Fees

• Current Assignee: Koninklijke Philips N.V.
• Original Assignee: Koninklijke Philips N.V.
• Inventors: Peters, Willem Jan
• Primary Examiner(s): NGUYEN, KIMNHUNG T
• Application Number:
  US13/147,214
• Publication Number:
  US 20110304653A1
• Time in Patent Office: 1,951 Days
• Field of Search: 345 76- 83, 345 87- 89, 345/690, 315/312, 315/291
• US Class Current: 1/1
• CPC Class Codes: F21S 10/00 Lighting devices or systems producing a varying lighting effect
• CPC Class Codes: F21V 14/003 by interposition of elements with electrically controlled variable light transmissivity, e.g. liquid crystal elements or electrochromic devices
• CPC Class Codes: F21V 23/0442 activated by means of a sensor, e.g. motion or photodetectors
• CPC Class Codes: G02F 1/133305 Flexible substrates, e.g. plastics, organic film

Abstract

A lamp (100) comprises:

• • at least one light-generating element (2);
  • a partially transparent shade (5) arranged to surround the light-generating element (2) over an angle of at least 180° but preferably 360°;
  • at least one LCD screen (10) arranged between the light generating element and the shade;
  • a controller (20) for controlling the LCD screen such as to display an image.

In horizontal cross-section, the LCD screen extends in two dimensions, with a concave side towards the light generating element.

The LCD screen preferably is flexible, and may be bent to a cylindrical shape around the light-generating element.

Claims

1. Lamp, comprising:

at least one light-generating element;

a partially transparent shade arranged to surround the light-generating element over an angle of at least 180°

;

at least one LCD screen arranged between the light generating element and the shade, the at least one LCD screen having at least one portion exhibiting low transmission and at least one portion exhibiting high transmission; and

a controller for controlling the LCD screen such as to display an image, said image having at least one discernable object.

2. Lamp according to claim 1, wherein, in horizontal cross-section, the LCD screen extends in two dimensions, with a concave side towards the light generating element.

3. Lamp according to claim 1, wherein the shade is semi-transparent, with diffusing properties.

4. Lamp according to claim 3, wherein the controller is provided with a user interface allowing a user to select an image from the memory.

5. Lamp according to claim 4, wherein the user interface includes a communication port allowing a user to store images in the memory.

6. Lamp according to claim 1, wherein the LCD screen is a flexible screen.

7. Lamp according to claim 1, wherein the LCD screen is bent to a cylindrical shape and is arranged around the light generating element.

8. Lamp according to claim 1, wherein the LCD screen is constituted from at least two planar panels that are arranged at an angle larger than zero with respect to each other.

9. Lamp according to claim 1, wherein the lamp is provided with a sound sensor coupled to the controller, wherein the controller is provided with sound processing and analyzing software.

10. Lamp according to claim 1, wherein the lamp is provided with a radio receiver and a loudspeaker, wherein the controller is provided with sound processing and analyzing software.

11. Lamp according to claim 1, wherein the shade is arranged to surround the light-generating element over an angle of 360°

.

12. Lamp according to claim 1, wherein the lamp is a wake-up lamp.

13. Lamp according to claim 1, wherein the image is a clock depicting a time.

14. Lamp according to claim 1, wherein the image is a moving image.

15. Lamp according to claim 1, wherein the image depicts a weather condition corresponding to a weather condition of a specific location.

16. Lamp according to claim 1, wherein the image is a succession of still images.

17. Lamp according to claim 1, further comprising a memory storing therein a collection of images, wherein the controller includes software for selecting the image from the memory based on one of the nature of a sensed sound and the nature of a received audio.

18. Lamp, comprising:

at least one light-generating element;

a partially transparent shade arranged to surround the light-generating element over an angle of at least 180°

;

at least one LCD screen arranged between the light generating element and the shade, and configured to move with respect to the at least one light-generating element; and

a controller for controlling the LCD screen by changing the intensity of the lamp over a period of time to simulate a sunrise.

19. Lamp according to claim 18, wherein, in horizontal cross-section, the LCD screen extends in two dimensions, with a concave side towards the light generating element.

20. Lamp according to claim 18, wherein the shade is semi-transparent, with diffusing properties.

21. Lamp according to claim 18, further comprising a memory storing therein a collection of images, wherein the controller includes software for selecting the image from the memory based on one of the nature of a sensed sound and the nature of a received audio.