Movable Lens Module for Adjustable Downlight Beam Patterns

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Solution Overview

Problem

Current lighting devices lack flexibility and adjustability in output light characteristics, such as beam width and pattern, which limits their ability to provide convenient, cost-effective, and aesthetically pleasing lighting solutions for various applications.

Innovation Solution

A downlight apparatus featuring a movable lens module that adjusts its position relative to the light source module, allowing for different optical characteristics and light patterns, combined with a driver module that controls light strength and color temperature, enabling users to customize the output light via manual or remote control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If a fixed lighting device is used, then the structure is simple and cost is low, but the adjustability of output light characteristics is poor

Engineering Contradiction:
Improveadjustability of output light characteristicsVSAvoidstructure complexity
Core Design Contradiction:
Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent applies the dynamics principle by making the lens module movable relative to the light source module. The lens module can be adjusted to different positions along the optical axis, allowing dynamic change of beam width and light pattern. This mechanical movement transforms a static lighting device into a dynamic one, enabling adaptability of light characteristics without requiring multiple fixed devices.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The patent implements universality by designing a single lighting device that can produce multiple light patterns and beam widths through the movable lens module. The same device structure serves multiple functions: it can create spot light, flood light, and intermediate patterns by adjusting the lens position, replacing the need for multiple specialized lighting fixtures.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If multiple fixed lighting devices are used to achieve different light patterns, then the lighting coverage is comprehensive, but the device complexity and cost increase

Engineering Contradiction:
Improvelighting coverageVSAvoidnumber of lighting devices
Core Design Contradiction:
Adaptability or versatilityVSQuantity of substance

Solution Approach 1:

The patent applies universality by creating a multi-functional lighting device where a single unit can produce various light patterns (spot, flood, intermediate) through the adjustable lens module. This eliminates the need for multiple specialized lighting devices, reducing both quantity and overall system complexity while maintaining comprehensive lighting coverage.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

By incorporating a movable lens module that can be dynamically adjusted, the patent allows one device to replace multiple fixed devices. The dynamic adjustment capability enables the same physical device to adapt to different lighting requirements, effectively reducing the total number of devices needed in the system.

Inventive Principle:
Principle #15Dynamics

3Adaptability or versatility

If the lens module is made movable for adjusting light patterns, then the adaptability is improved, but the ease of operation decreases

Engineering Contradiction:
Improvelight pattern adjustabilityVSAvoidmanual adjustment convenience
Core Design Contradiction:
Adaptability or versatilityVSEase of operation

Solution Approach 1:

The patent replaces manual mechanical adjustment with electronic control systems. The movable lens module is actuated by motors or actuators controlled through electronic circuits, allowing users to adjust light patterns via buttons, remote controls, or automated systems rather than manually moving the lens, significantly improving ease of operation.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

Solution Approach 2:

The patent incorporates control systems that enable automated or self-adjusting functionality. The lighting device can automatically adjust the lens position based on preset modes or user selections, reducing the need for manual intervention and making the operation more convenient and intuitive.

Inventive Principle:
Principle #25Self-service

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 solution provides a flexible and customizable lighting solution that can simulate various light conditions, such as sunlight spectra, while ensuring eye safety by reducing blue light exposure, and allows for coordinated control of multiple units, enhancing user experience and adaptability.

Implementation Method 1

A light-emitting diode (LED) is a semiconductor light source that emits light when current flows through it. Electrons in the semiconductor recombine with electron holes, releasing energy in the form of photons. This effect is called electroluminescence.

Methodology Applied
Scientific EffectElectroluminescence: Electroluminescence

Implementation Method 2

The lens module is disposed in a light emitting path of the light source module toward the light opening... By preparing different lens surface and related parameters, the output light may have different optical characteristics.

Methodology Applied
Scientific EffectRefraction: Refraction

Data Source

PatentUS10948168B2Downlight apparatus
Publication Date: 2021.03.16 XIAMEN ECO LIGHTING CO LTD
  • US10948168B2 patent drawing
  • US10948168B2 patent drawing
  • US10948168B2 patent drawing

AI summary

A downlight apparatus includes a container housing, a light source module, and a lens module. The lens module is moved by a user along a movable spacing defined by a bracket of the container. The lens module has different types of lens areas. By moving the lens module at a relative position with respect to a light source module mounted in the container housing, the output light is produced with a desired light pattern and parameters.