Multi-source homework lamp

• US 9,777,896 B2
• Filed: 04/14/2015
• Issued: 10/03/2017
• Est. Priority Date: 10/31/2014
• Status: Active Grant

• Current Assignee: BOE Technology Group Co., Ltd.
• Original Assignee: BOE Technology Group Co., Ltd.
• Inventors: Ji, Chunyan, Wu, Yanbing, Liu, Fei, Yang, Tian
• Primary Examiner(s): Le, Tung X
• Application Number:
  US14/769,154
• Publication Number:
  US 20160334069A1
• Time in Patent Office: 903 Days
• Field of Search: 362 98, 362253, 362413, 315136
• CPC Class Codes: F21S 6/003 for task lighting, e.g. for reading or desk work, e.g. angle poise lamps
• CPC Class Codes: F21V 1/10 Rotating shades
• CPC Class Codes: F21V 17/02 with provision for adjustment F21V17/04 - F21V17/08 take precedence
• CPC Class Codes: F21V 21/14 Adjustable mountings
• CPC Class Codes: F21V 21/15 specially adapted for power operation, e.g. by remote control
• CPC Class Codes: F21V 21/22 telescopic
• CPC Class Codes: F21V 23/003 the elements being electronics drivers or controllers for operating the light source, e.g. for a LED array
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]
• CPC Class Codes: F21Y 2115/15 Organic light-emitting diodes [OLED]
• CPC Class Codes: H05B 45/60 Circuit arrangements for operating LEDs comprising organic material, e.g. for operating organic light-emitting diodes [OLED] or polymer light-emitting diodes [PLED]
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/13 by using passive infrared detectors
• 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

Abstract

The disclosure discloses a multi-source homework lamp comprising: a first lampshade and a second lampshade connected to a shaft, wherein the first lampshade and the second lampshade are rotatable around the shaft; main lights disposed inside each of the lampshades; and a control unit for controlling the luminance of the main lights and controlling the rotation of the first lampshade and the second lampshade, thereby controlling the angle between the two. In the multi-source homework lamp according to the disclosure, by a design of the two-piece main lights with the angle being variable, the illuminance is caused to be more uniform, and the illumination range and the illumination luminance of the homework lamp may be adjusted more conveniently.

Claims

1. A multi-source homework lamp, comprising:

a first lampshade and a second lampshade connected to a shaft, wherein the first lampshade and the second lampshade are rotatable around the shaft;

main lights disposed inside each of the first and second lampshades, each of the main lights having an adjustable light intensity;

a control unit for controlling at least one of the rotation of the first and second lampshades and the adjustable light intensity of the main lights;

a sidelight disposed on a side edge of at least one of the first lampshade and the second lampshade; and

a human eye recognition apparatus for sensing a human eye;

wherein the control unit is further configured to cause at least one of the main lights and the sidelight of the multi-source homework lamp to emit light when the human eye recognition apparatus senses the human eye; and

wherein the control unit is further configured to cause at least one of the main lights and the sidelight of the multi-source homework lamp to stop emitting light when the human eye is not sensed after a predetermined length of time.

2. The multi-source homework lamp according to claim 1, wherein the first lampshade and the second lampshade are connected to the shaft by hinge joints.

3. The multi-source homework lamp according to claim 1, wherein the main lights are OLED area light sources.

4. The multi-source homework lamp according to claim 1, further comprising:

a base; and

a support;

wherein the human eye recognition apparatus being disposed on the base; and

wherein a first end of the support is connected to the shaft and a second end of the support is connected to the base.

5. The multi-source homework lamp according to claim 4, wherein the support is a telescopic support with an adjustable height.

6. The multi-source homework lamp according to claim 4, wherein the support is rotatable on the base.

7. The multi-source homework lamp according to claim 4, wherein the human eye recognition apparatus is disposed on an upper surface of the base, and the upper surface of the base is at an angle with respect to a bottom surface of the base.

8. The multi-source homework lamp according to claim 1, wherein the human eye recognition apparatus is further used for determining a blink frequency, and wherein the control unit is configured to reduce the adjustable light intensity of the main lights when the blink frequency exceeds a predetermined frequency.

9. The multi-source homework lamp according to claim 1, wherein the human eye recognition apparatus is further used for determining a distance between the human eye and a desktop upon which the multi-source homework lamp is located.

10. The multi-source homework lamp according to claim 9, wherein the control unit is further configured to adjust the adjustable height of the telescopic support according to the distance between the human eye and the desktop.

11. The multi-source homework lamp according to claim 9, comprising a warning unit for communicating warning information when the distance between the human eye and the desktop is less than a predetermined distance.

12. A multi-source homework lamp comprising:

a first lampshade and a second lampshade connected to a shaft, wherein the first lampshade and the second lampshade are rotatable around the shaft;

main lights disposed inside each of the first and second lampshades, each of the main lights having an adjustable light intensity;

a sidelight disposed on a side edge of at least one of the first lampshade and the second lampshade;

a control unit for controlling at least one of the rotation of the first and second lampshades and the adjustable light intensity of the main lights; and

a first light sensor disposed on the shaft for measuring an ambient light intensity;

wherein the control unit is further configured to control at least one of the rotation of the first and second lampshades and the adjustable light intensity of the main lights according to the ambient light intensity.

13. The multi-source homework lamp according to claim 12, wherein the control unit is further configured to control the rotation of the first lampshade and the second lampshade when the ambient light intensity is larger than a predetermined threshold, such that an angle between the first lampshade and the second lampshade is between 120°

and 180°

.

14. The multi-source homework lamp according to claim 12, characterized in that, the control unit is configured further to control the rotation of the first lampshade and the second lampshade when the ambient light intensity is less than the predetermined threshold, such that the first lampshade is proximate the second lampshade and the main lights of both the first lampshade and the second lampshade face outwards.

15. The multi-source homework lamp according to claim 12,

wherein the sidelight comprises at least one of an inner sidelight proximate the shaft and an outer sidelight distal the shaft and opposite to the inner sidelight;

and

wherein the control unit is configured to;

control the inner sidelights and the outer sidelights of the first lampshade and the second lampshade to be turned on when the ambient light intensity is less than the predetermined threshold; and

control the outer sidelights of the first lampshade and the second lampshade to be turned on and the inner sidelights of the first lampshade and the second lampshade to be turned off when the ambient light intensity is greater than the threshold.

16. The multi-source homework lamp according to claim 12, further comprising:

a second light sensor for receiving light reflected from a target object illuminated by the multi-source homework lamp and measuring a target object illuminance, the second light sensor being disposed on at least one of the first lampshade and the second lampshade;

wherein the control unit is further configured to adjust an adjustable light intensity of at least one of the main lights and the sidelights according to the target object illuminance, such that the target object illuminance reaches a desired target object illuminance.