LED projection night light

• US 8,721,160 B2
• Filed: 10/28/2010
• Issued: 05/13/2014
• Est. Priority Date: 03/30/2005
• Status: Active Grant

• Current Assignee: Aaron Chien, Hsin-Yi Wang, Te-Ju Chien
• Original Assignee: Tseng-Lu Chien
• Inventors: Chien, Tseng-Lu
• Primary Examiner(s): Lee, Y My Quach
• Application Number:
  US12/914,584
• Publication Number:
  US 20110085323A1
• Time in Patent Office: 1,293 Days
• Field of Search: 362/641
• US Class Current: 362/641
• CPC Class Codes: F21K 9/232 specially adapted for generating an essentially omnidirectional light distribution, e.g. with a glass bulb
• CPC Class Codes: F21S 10/002 using liquids, e.g. water
• CPC Class Codes: F21S 10/007 using rotating transparent or colored disks, e.g. gobo wheels
• CPC Class Codes: F21S 4/28 rigid, e.g. LED bars
• CPC Class Codes: F21S 8/035 by means of plugging into a wall outlet, e.g. night light
• CPC Class Codes: F21S 9/02 the power supply being a battery or accumulator
• CPC Class Codes: F21V 13/02 Combinations of only two kinds of elements
• 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 14/006 by means of optical elements, e.g. films, filters or screens, being rolled up around a roller
• CPC Class Codes: F21V 14/08 by movement of the screens or filters
• CPC Class Codes: F21V 17/02 with provision for adjustment F21V17/04 - F21V17/08 take precedence
• CPC Class Codes: F21V 21/08 Devices for easy attachment to any desired place, e.g. clip, clamp, magnet
• CPC Class Codes: F21V 21/14 Adjustable mountings
• CPC Class Codes: F21V 21/22 telescopic
• CPC Class Codes: F21V 21/29 employing universal joints
• CPC Class Codes: F21V 21/30 Pivoted housings or frames
• CPC Class Codes: F21V 23/00 Arrangement of electric circuit elements in or on lighting devices characterised by cooling arrangements F21V29/508
• 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 23/0471 the sensor detecting the proximity, the presence or the movement of an object or a person
• CPC Class Codes: F21V 29/00 : Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems lighting fixtures combined with outlets for air-treatment systems F24F13/078
• CPC Class Codes: F21V 5/04 : of lens shape
• CPC Class Codes: F21W 2121/00 : Use or application of lighting devices or systems for decorative purposes, not provided for in codes F21W2102/00 – F21W2107/00
• CPC Class Codes: F21Y 2115/10 : Light-emitting diodes [LED]
• CPC Class Codes: G03B 21/142 : Adjusting of projection optics
• CPC Class Codes: Y10S 362/80 : Light emitting diode
• CPC Class Codes: Y10S 362/806 : Ornamental or decorative

Abstract

An LED projection night light for night time or dark area use includes a plug-in wall outlet night light or direct current operated night light with projection features to project an image, message, data, logo, or time on a ceiling, walls, floor, or other desired surface. The LED night light incorporates optics means such as an optics-lens, slides, openings, or cut-outs, and/or a transparent material piece, translucent material piece, telescope assembly, housing-member, slide-film, slide-disc, elastic-member, tilt-means, rotating-means, adjust-means, roller-means, mechanical-means, extend-means, convex lens, and/or concave lens designed to make the desired image, message, data, logo, or time project to the ceiling, walls, floor, or other desired surface to be seen by a viewer. The LED light has an interchangeable power source arrangement, permitting the night light to be selectively powered by either an AC powered sealed-unit or a DC powered battery-pack.

Claims

1. An LED projection night light, comprising:

at least one LED arranged to emit visible light beams; and

at least one power source connected to said at least one LED to cause said at least one LED to exhibit at least one of a desired light function, timing, color, brightness, at illumination effect,

wherein;

said LED projection night light is a plug-in night light arranged to be connected to a plug-in electrical outlet,

said plug-in night light includes at least one optics means incorporated with the LED for projecting said light through one of a plurality of different slides to cause a desired image, message, data, logo, or time to project onto a ceiling, walls, floor, or other desired surface, said optics means including elements selected from the group consisting of an optical lens, openings, cut-outs, a transparent material piece, a translucent material piece, a convex lens, and a concave lens, and

means including a movable slide holding member for enabling a user to manually change said one of a plurality of slides to a different slide by the user manually moving the slide holding member from a first position in which one of a plurality of slides is in front of said optics means to a second position in which said different slide is in front of said optics means to change said image, message, data, logo, or time.

2. An LED projection night light as claimed in claim 1, further comprising at least one of the following elements:

(a) a telescope assembly, (b) tilt means for tilting said optics means, (c) rotating means for rotating said optics means, (d) adjust means for adjusting said optics means, (e) a roller, and (f) an elastic member to change a projection direction of said night light.

3. An LED projection night light as claimed in claim 2, wherein said slides are changed by at least one of said roller, said elastic member, and a push button.

4. An LED projection night light as claimed in claim 2, wherein a projection direction is changed by at least one of said rotating means, said tilt means, a swivel means, a housing means, and a bend means.

5. An LED projection night light as claimed in claim 1, wherein said optics means includes an extend means and said extend means changes a relative position of said slides, said light source, and said lens to adjust a focus of said image.

6. An LED projection night light as claimed in claim 1, wherein said slide is mounted in a rotatable slide disc containing said plurality of different slides.

7. An LED projection night light, comprising:

at least one LED arranged to emit visible light beams; and

at least one power source connected to said at least one LED to cause said at least one LED to exhibit at least one of a desired light function, timing, color, brightness, at illumination effect,

the improvement wherein;

said LED projection night light is a DC powered night light arranged to be supplied with power from any combination of an AC adaptor jack, solar power source, wind power source, a generator, an electricity storage device, and a charging circuit,

said DC powered night light includes at least one optics means incorporated with the LED for projecting said light through one of a plurality of different slides to cause a desired image, message, data, logo, or time to project onto a ceiling, walls, floor, or other desired surface, said optics means including elements selected from the group consisting of an optical lens, openings, cut-outs, a transparent material piece, a translucent material piece, a convex lens, and a concave lens;

means for adjusting said optic means, said adjusting means including at least one of a telescope assembly, tilt means for tilting said optics means, rotating means for rotating said optics means, and extend means for extending said optics means, and

means including a movable slide holding member for enabling a user to manually change said one of a plurality of slides to a different slide by the user manually moving the slide holding member from a first position in which one of a plurality of slides is in front of said optics means to a second position in which said different slide is in front of said optics means to change said image, message, data, logo, or time.

8. An LED projection night light as claimed in claim 7, further comprising at least one of the following elements:

a roller and an elastic member to change a projection direction of said night light.

9. An LED projection night light as claimed in claim 8, wherein said slides are changed by at least one of said roller, said elastic member, and a push button.

10. An LED projection night light as claimed in claim 8, wherein a projection direction is changed by at least one of said rotating means, said tilt means, a swivel means, a housing means, and a bend means.

11. An LED projection night light as claimed in claim 7, wherein said optics means includes said extend means and said extend means changes a relative position of said slides, said light source, and said lens to adjust a focus of said image.

12. An LED projection night light as claimed in claim 7, wherein said slide is mounted in a rotatable slide disc containing said plurality of different slides.