LED Light with Built-in Projection and Night Light Functions
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Solution Overview
Problem
Current night lights lack a projection function and are typically powered by batteries with incandescent bulbs, which have limited continuous usage due to high power consumption and short battery life, whereas existing projection lights do not have a built-in night light function or continuous power source.
Innovation Solution
An LED light with a built-in projection and night light feature, powered by either an outlet or battery, incorporating a power-saving circuit, adjustable focus, swivel/rotate projection head, and a continuous switch position, enabling long-distance image projection and extended battery life.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If night lights use incandescent bulbs with battery power, then portability and simplicity are improved, but battery life is limited due to high power consumption
Solution Approach 1:
The patent changes the fundamental parameter of light source technology from incandescent bulbs to LEDs, which consume significantly less power. This parameter change enables the night light to operate continuously for extended periods on battery power, directly resolving the contradiction between portability and battery life.
2Adaptability or versatility
If projection lights use incandescent bulbs with battery power, then projection function is achieved, but continuous operation is impossible due to short battery life
Solution Approach 1:
The patent applies LED technology to the projection light system, fundamentally changing the power consumption parameter. This enables the projection function to operate continuously for tens of hours on battery power, resolving the contradiction between projection capability and battery duration.
3Use of energy by moving object
If LED lights are used with power saving circuit, then energy consumption is reduced and battery life is extended, but device complexity increases
Solution Approach 1:
The patent incorporates a power saving circuit that automatically controls the LED operation, including features like automatic dimming and sleep modes. The system self-regulates its power consumption without requiring complex user intervention, extending battery life while keeping the control mechanism integrated and relatively simple.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The LED light provides a combination of night light and projection functions with extended battery life, allowing for continuous operation and clear image projection over long distances, addressing the limitations of existing night lights and projection lights.
Implementation Method 1
newly available LEDs for power saving
Data Source
AI summary
An LED light has a built-in projection light and a night light to offer at least two functions for people in a dark environment. The projection light can project an image from any type of display-unit irrespective of geometric shape or image source or type, including display of digital data, wireless digital data, an LCD or TFT screen display, or any other display, enabling images of enlarged size to be projected onto a preferred surface, making it easier for people to see the image. The built-in night light helps people see things in a dark environment.