Browse Prior Art Database

Directional Lighting Disclosure Number: IPCOM000243884D
Publication Date: 2015-Oct-26
Document File: 4 page(s) / 65K

Publishing Venue

The Prior Art Database


This article describes how an LED lightbulb can be made to fit a standard Edison screw in fitting, and be controlled wirelessly to create different lighting patterns based on selective illumination of individual LEDs within the lamp.

This text was extracted from a PDF file.
This is the abbreviated version, containing approximately 52% of the total text.

Page 01 of 4

Directional Lighting

Today's light fixtures are designed for tungsten or halogen bulbs. Now that these have been deemed energy inefficient, they have gone through phases of replacement, including compact fluorescent (CFL) and now LED lighting is becoming practical and affordable.

Traditional tungsten or CFL bulbs hung in the middle of the room usually spread light evenly radiating outward. This can cause problems with shadows cast on the side of the rooms, and causes the centre of the room to be brightest. More recently multiple halogen downlights per room became popular, and sometimes these are gimbled to allow the light to be directed in a particular direction, but it is still an all-or-nothing decision needs to be made as to where the light should be pointed.

Prior Art

US Patent 20130154465 describes LED light bulb with multiple LEDs, however this focuses on heat optimum dissipation and no control of individual LEDs is mentioned.

This invention uses LED light bulbs which can connect to a traditional light socket, and are connected wirelessly to a controller. Each light bulb is made up of multiple red, green and blue (RBG) LEDs covering the surface of the bulb (Fig 1). This allows the user to select the colour and brightness of specific parts of the room using a single light source, and vary parts of the room based on requirements such as mood ambience, safety etc (Fig 2).

Advantages of this invention over known prior art include:

Greater control to the consumer in how lighting is configured

Greater simplicity in re-configuring lighting for multiple purposes

Wirelessly controlled LED light bulbs are not new. Two companies are currently producing them. While these are far more advanced than traditional light globes, and ar...