Lighting Device Supplying Temporally Appropriate Light

• US 20100244735A1
• Filed: 03/26/2010
• Published: 09/30/2010
• Est. Priority Date: 03/26/2009
• Status: Abandoned Application

• Current Assignee: Energy Focus, Inc.
• Original Assignee: Energy Focus, Inc.
• Inventors: Buelow, Roger F. II
• Application Number:
  US12/748,298
• Publication Number:
  US 20100244735A1
• Time in Patent Office: Days
• US Class Current: 315/294
• CPC Class Codes: H05B 35/00 Electric light sources using a combination of different types of light generation
• CPC Class Codes: H05B 47/11 by determining the brightness or colour temperature of ambient light
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources
• CPC Class Codes: H05B 47/16 by timing means
• CPC Class Codes: H05B 47/165 following a pre-assigned programmed sequence; Logic control [LC]
• CPC Class Codes: Y02B 20/40 Control techniques providing energy savings, e.g. smart controller or presence detection

Abstract

A lighting device operable to supply temporally appropriate light to a user comprises a light socket adapter interposed between a primary socket and a first type of lamp. The primary socket is connected to a switchable supply of electrical power. A first type of lamp includes wavelengths below 530 nm that are suppressive of melatonin production in a user viewing the light. There is a second type of lamp that supplies light substantially all above 530 nm so as to avoid suppressing melatonin production in a user viewing the light. The light socket adapter has at least one mode of operation in which automatic means causes the first and second types of lamp to be exclusively operable during respective predetermined periods of time.

Claims

1. A lighting device operable to supply temporally appropriate light to a user, comprising:

a) a light socket adapter for interposing between a primary socket and a first type of lamp;

b) said primary socket being connected to a supply of electrical power when an associated power switch is in a power-on state and being disconnected from the supply of electrical power when the associated power switch is in a power-off state;

c) the light socket adapter including a body portion;

at least one of a second type of lamp being mounted on said body portion; and

said body portion having a first type of socket for receiving and supplying power to said first type of lamp;

d) the first type of lamp supplying light that includes wavelengths below 530 nm that are suppressive of melatonin production in a user viewing said light, and the second type of lamp supplying light that is substantially all above 530 nm so as to avoid suppressing melatonin production in a user viewing the light; and

e) the light socket adapter having at least one mode of operation in which automatic means causes—

i) only the first type of lamp to be operable during predetermined periods of time when the user determines that melatonin-suppression will not adversely affect the user and only when the power switch is in a power-on state, and

ii) only the second type of lamp to be operable during predetermined periods of time when avoidance of melatonin suppression is desired by the user and only when the power switch is in a power-on state.

2. The lighting device of claim 1, wherein said one mode of operation includes the automatic means causing, during a transition interval—

a) whichever type of lamp is operating to dim from a predetermined level to off in a gradual manner over a first predetermined period of time of approximately one second; and

b) the other type of lamp to increase in intensity from off to a predetermined level in a gradual manner over a second predetermined period of time of at least approximately one second;

c) the foregoing predetermined periods of time overlapping each other for more than 50 percent of whichever predetermined period of time is longest.

3. The lighting device of claim 2, wherein the first and second predetermined periods of time each exceed about 10 minutes.

4. The lighting device of claim 2, wherein the first and second predetermined periods of time each exceed about 30 minutes.

5. The lighting device of claim 1, wherein the automatic means comprises electronic control means in the light socket adapter, responsive to the time of day contained in a clock in the body portion, to allow a power switch for the device to cause power to be delivered to any of the first type of lamp or to any of the second type of lamp.

6. The lighting device of claim 2, wherein means are provided for adjusting the time of said clock.

7. The lighting device of claim 6, wherein remote means are provided for adjusting said clock.

8. The lighting device of claim 6, wherein:

a) the body portion includes a display of time of said clock; and

b) user-manipulated means are provided for adjusting the time of said clock.

9. The lighting device of claim 1, wherein the body portion includes a user-manipulated switch having the capability of selecting:

a) the second type of lamp being always off;

b) the second type of lamp being always on;

or

c) the second type of lamp being under the control of said electronic control means.

10. The lighting device of claim 1, wherein the automatic means comprises electronic control means in the light socket adapter, responsive to a determination of daytime or nighttime from at least one light sensor, to allow a power switch for the device to cause power to be delivered to any of the first type of lamp or to any of second type of lamp.

11. The lighting device claim 10, wherein the at least one sensor comprises a plurality of sensors mounted on respectively separate planes or respectively facing different directions.

12. The lighting device of claim 10, wherein the body portion includes a user-manipulated switch having the capability of selecting:

a) the second type of lamp being always off;

b) the second type of lamp being always on;

or

c) the second type of lamp being under the control of said electronic control means.

13. The lighting device of claim 1, wherein the automatic means is responsive to the users inputs on a user interface for providing temporary offsets in time for transitioning between the first type of lamp being exclusively operable and the second type being exclusively operable

14. The lighting device of claim 13, wherein the user inputs include a selection of the number of days for the offsets to be effective.

15. The lighting device of claim 14, wherein the user inputs include a selection of whether to apply the offsets gradually over time based on the selection of the number of days.

16. The lighting device of claim 1, wherein a second type of lamp has a light-emitting section in the shape of a ring that surrounds a part of the body portion for more than 180 degrees.

17. The lighting device of claim 1, wherein a second type of lamp has a light-emitting section in the shape of a ring that surrounds a part of the body portion for more than 270 degrees.

18. The lighting device of claim 16, wherein:

a) the lighting device has a first axis extending through said body portion and through said primary socket, when mounted thereto; and

b) the ring loops around the first axis.

19. The lighting device of claim 16, wherein the light-emitting section comprises a vitreous envelope of a gas discharge lamp.

20. The lighting device of claim 16, wherein the light-emitting section comprises a fiberoptic light pipe.

21. The lighting device of claim 20, wherein the second type of lamp comprises an LED.

22. The lighting device of claim 21, wherein the second type of lamp comprises an optic for reducing the angles of light from the LED that are directed to the fiberoptic light pipe.

23. The lighting device of claim 1, wherein the second type of lamp comprises an LED recessed below an outer surface of the body portion.

24. The lighting device of claim 23, wherein the second type of lamp further comprises an optic for transforming light from the LED that are directed to the fiberoptic light pipe.

25. The lighting device of claim 23, wherein the LED is protected by an optically transmissive cover.

26. The lighting device of claim 1, wherein:

a) the body portion has an externally-oriented surface extending 360 degrees about an axis for gripping by a user;

b) cross-sections of said surface orthogonal to said axis being configured non-circularly so as to enhance gripping ability by a user.

28. The lighting device of claim 26, wherein said externally-oriented surface comprises a plurality of indents extending along said axis;

said plurality of indents extending serially 360 degrees about said axis.

29. The lighting device of claim 26, wherein said body portion includes at least one LED recessed below said externally-oriented surface.

30. The lighting device of claim 29, wherein the LED is protected by an optically transmissive cover forming part of the body portion.

31. The lighting device of claim 29, wherein at least one LED is mounted in the body portion different from said externally-oriented surface.

32. The lighting device of claim 10, wherein the body portion includes a shading element to block straight-path light transmission from any of the first type of lamps and any of the second type of lamps to said at least one light sensor.

33. The lighting device of claim 32, wherein:

a) the lighting device has a first axis extending through said body portion and through said primary socket, when mounted thereto; and

b) the shading element is interposed, along said first axis, between each of the first type of lamp and each of the second type of lamp and said at least one light sensor.

34. The lighting device of claim 33, wherein the shading element comprises a part of the body portion that is enlarged about the first axis.

35. The lighting device of claim 1, wherein:

a) the lighting device has a first axis extending through a main axis of a main adapter base for insertion into said primary socket and through a first socket; and

b) the body portion having a transverse extension from the first axis;

the transverse extension having a second socket;

c) one of the first and second sockets being constructed as a first type of socket for a first type of lamp and the other of the first and second sockets being constructed as a socket for a second type of lamp.

36. The lighting device of claim 35, wherein:

a) the first type of socket on the transverse extension has a second axis passing through a main axis of the first type of lamp; and

b) the first and second axes being parallel to each other within approximately 40 degrees.

37. The lighting device of claim 1, wherein:

a) the lighting device has a first axis extending through a main axis of a main adapter base for insertion into said primary socket; and

b) the body portion having a transverse extension from the first axis;

the transverse extension having said first type of socket for receiving one of the first type of lamp.

38. The lighting device of claim 37, wherein:

a) the first type of socket has a second axis passing through a main axis of the first type of lamp; and

b) the first and second axes being parallel to each other within approximately 40 degrees.

39. The lighting device of claim 1, wherein the body portion includes a switch for adjusting the level of intensity of each of the second type of lamp.

40. The lighting device of claim 39, wherein the switch is constructed in such a manner as to allow adjustment of said intensity in a continuous manner.

41. The lighting device of claim 1, wherein:

a) the lighting device has a first axis extending through said body portion and through a main adapter base for insertion into said primary socket; and

b) the first type of lamp is a tubular fluorescent lamp;

c) the body portion has a shape approximating a tubular length of said fluorescent lamp; and

d) the first axis extends through a main axis of the first type of lamp and the body portion.

27. The lighting device of 26, wherein said externally-oriented surface comprises a series of facets extending 360 degrees about said axis.