Rotating Beam Splitter for Dynamic Light Projection

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Solution Overview

Problem

Existing decorative outdoor spotlights lack the ability to project dynamic, moving light patterns effectively, limiting their decorative capabilities during holidays and other events.

Innovation Solution

A decorative light system featuring a beam splitter and a lighting module with rotating LEDs, powered by a motor, which projects light beams through a cover with cutouts or patterns to create dynamic light shapes on exterior surfaces, allowing for adjustable color, intensity, and speed control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a decorative outdoor spotlight uses a static light source and fixed lens, then the structure is simple and reliable, but it cannot project dynamic moving light patterns

Engineering Contradiction:
Improvedynamic lighting capabilityVSAvoidstructural complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by replacing the static light source with a rotating beam splitter mechanism. The beam splitter rotates to dynamically redirect light beams, creating moving light patterns on exterior surfaces. This transformation from static to dynamic operation enables versatile decorative lighting effects while maintaining a relatively compact structure.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent introduces rotational motion as an additional dimension to the lighting system. By rotating the beam splitter around the light source, the system transforms a two-dimensional light projection into a three-dimensional dynamic display, allowing light patterns to move across surfaces in multiple directions and creating more engaging decorative effects.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

2Adaptability or versatility

If a decorative light uses a motorized rotating beam splitter, then dynamic light patterns are achieved, but the device complexity and manufacturing difficulty increase

Engineering Contradiction:
Improvelight pattern varietyVSAvoidmanufacturing ease
Core Design Contradiction:
Adaptability or versatilityVSEase of manufacture

Solution Approach 1:

The patent segments the lighting function into distinct components: a stationary light source, a rotating beam splitter, and a fixed housing. This segmentation allows each component to be manufactured separately using standard processes, then assembled together. The beam splitter can be manufactured as a separate optical element with precise angular facets, simplifying the overall manufacturing process despite the dynamic functionality.

Inventive Principle:
Principle #1Segmentation

3Illumination intensity

If existing decorative spotlights use simple static structures, then they are easy to manufacture and reliable, but they lack decorative effectiveness for holidays and events

Engineering Contradiction:
Improvedecorative effectVSAvoidsystem complexity
Core Design Contradiction:
Illumination intensityVSDevice complexity

Solution Approach 1:

The patent introduces a beam splitter as an intermediary optical element between the light source and the exterior environment. This beam splitter acts as a mediator that redirects and distributes light in multiple directions, creating dynamic light patterns on walls and surfaces. The beam splitter enables enhanced decorative effects without requiring multiple separate light sources or complex mechanical assemblies.

Inventive Principle:
Principle #24Intermediary (Mediator)

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

Enables the creation of dynamic, moving light patterns on exterior surfaces, enhancing decorative capabilities and user control, making it suitable for various holiday and event decorations.

Implementation Method 1

the lighting module including a light emitting diode (LED) located thereon

Methodology Applied
Scientific EffectLight emitting diode (LED): Light Emitting Diode

Implementation Method 2

a beam splitter located inside a lamp case, the beam splitter defining an interior region... projecting the one or more light shapes through the rotating beam splitter

Methodology Applied
Scientific EffectBeam splitter: Reflection

Data Source

PatentUS10234118B2Decorative light
Publication Date: 2019.03.19 GEMMY IND CORP
  • US10234118B2 patent drawing
  • US10234118B2 patent drawing
  • US10234118B2 patent drawing

AI summary

A decorative light including a beam splitter located inside a lamp case, the beam splitter defining an interior region; a lighting module located within the interior region of the beam splitter, the lighting module including a light emitting diode (LED) located thereon and a cover including a cutout, pattern, or image, the cover aligned with the LED; and a motor located inside the lamp case and configured to rotate the beam splitter. The light beam is projected from the LED and through the cover to generate a light shape. The light shape is projected through the beam splitter onto an exterior surface. A method for projecting a light shape with a decorative light is also discussed.