LED night light with projection feature

• US 7,832,917 B2
• Filed: 09/18/2008
• Issued: 11/16/2010
• 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): Truong, Bao Q
• Application Number:
  US12/232,505
• Publication Number:
  US 20090016054A1
• Time in Patent Office: 789 Days
• Field of Search: 362641-644, 362/800, 362/276, 362/295, 362/394, 353 22- 24, 353/34, 353/71, 353/119
• US Class Current: 362/641
• CPC Class Codes: F21S 10/00 Lighting devices or systems producing a varying lighting effect
• CPC Class Codes: F21S 8/035 by means of plugging into a wall outlet, e.g. night light
• CPC Class Codes: F21V 9/00 Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters coloured shades F21V1/00; elements characterised by cooling arrangements F21V29/502
• CPC Class Codes: F21V 9/08 for producing coloured light, e.g. monochromatic; for reducing intensity of light with provision for controlling the colour F21V9/40
• CPC Class Codes: F21V 9/12 with liquid-filled chambers
• 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 2103/00 Elongate light sources, e.g. fluorescent tubes
• CPC Class Codes: F21Y 2103/10 comprising a linear array of point-like light-generating elements
• CPC Class Codes: F21Y 2103/37 U-shaped
• CPC Class Codes: F21Y 2105/00 Planar light sources
• CPC Class Codes: F21Y 2111/00 Light sources of a form not covered by groups F21Y2101/00-F21Y2107/00
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An LED night light for night time or dark area use may be arranged as a plug-in wall outlet night light or a direct current that includes projection features to project an image, message, data, logo, and/or time on a ceiling, walls, floor, or other desired surface. The LED night light incorporates optics selected from an optics-lens, convex lens, concave lens, openings, cut-outs, film, grating means, and/or hologram means to create the preferred image and project it to a desired location.

Claims

1. A night light with projection features, comprising:

at least one LED arranged as a light source to supply visible light beams;

at least one optics means for projecting an image on a desired surface, said optics means selected from the group consisting of an optics lens, a convex or concave lens, telescope means, a film, a display unit, a transparent material, and a translucent material, said image being formed by light from said at least one LED passing through transparent areas, openings, cut outs, grating means, or hologram means in said optics means, said image being selected from the group consisting of a message, data, a logo, a time, and any other image desired to be projected on said desired surface, and said desired surface selected from the group consisting of a ceiling, a wall, a floor, and any other surface that is outside said plug-in night light; and

at least one power source, circuit means, and trigger means arranged to cause said at least one LED to exhibit desired light functions, timing, colors, brightness, and illumination,

the improvement wherein;

said night light with projection features is a night light arranged to be plugged into an electrical outlet.

3. A night light with projection features as claimed in claim 1, wherein said desired light functions are selected from the group consisting of fade-in and fade out, automatic color changing, sequential on/off, random on/off, chasing, pair flashing, time delay, time period selection, steady on, photo sensor, motion sensor, brightness changing, color changing, and rotating illumination effects.

4. A night light with projection features as claimed in claim 1, wherein the optics means has a geometric shape selected from a sphere, a ball, or a half-ball to enable projection of the image in three dimensions.

5. A night light with projection features as claimed in claim 1, wherein said optics means includes said telescope means, said telescope means being adjustable to change a focus of said image.

6. A night light with projection features as claimed in claim 1, wherein said circuit means is selected from the group consisting of a circuit board, an integrated circuit, conductive means, switch means, an AC jack, a solar module, an AC plug and wire, AC adaptor, sensor means, a motion sensor means, and a timer means.

2. A night light with projection features, comprising:

at least one LED arranged as a light source to supply visible light beams;

at least one optics means for projecting an image on a desired surface, said optics means selected from the group consisting of an optics lens, a concave or convex lens, a telescope means, a film, openings, a display unit, cut outs, a transparent material, a translucent material, grating means, and hologram means, said image being formed by light from said at least one LED passing through transparent areas, openings, cut outs, grating means, or hologram means formed in said optics means, said image being selected from the group consisting of a message, data, a logo, a time, and any other image desired to be projected on said desired surface, and said desired surface selected from the group consisting of a ceiling, a wall, a floor, and any other surface that is outside said plug-in night light; and

at least one power source, circuit means, and trigger means arranged to cause said at least one LED to exhibit desired light functions, timing, colors, brightness, and illumination,

the improvement wherein;

said night light with projection features is a direct current night light and said optics means includes at least said optics lens, said night light being arranged to turn on when said optics lens is touched or pushed, and said direct current power source supplying an electric signal to said at least one LED from a power source selected from the group consisting of an AC adaptor with a jack, a solar power source, a chemical power source, a generator, and any other direct current power source.

7. A night light with projection features as claimed in claim 2, wherein said desired light functions are selected from the group consisting of fade-in and fade out, automatic color changing, sequential on/off, random on/off, chasing, pair flashing, time delay, time period selection, steady on, photo sensor, motion sensor, brightness changing, color changing, and rotating illumination effects.

8. A night light with projection features as claimed in claim 2, wherein the optics means has a geometric shape selected from a sphere, a ball, or a half-ball to enable projection of the image in three dimensions.

9. A night light with projection features as claimed in claim 2, wherein said optics means includes said telescope means, said telescope means being adjustable to change a focus of said image.

10. A night light with projection features as claimed in claim 2, wherein said circuit means is selected from the group consisting of a circuit board, an integrated circuit, conductive means, switch means, an AC jack, a solar module, an AC plug and wire, AC adaptor, sensor means, a motion sensor means, and a timer means.