Illumination Unit Optics With Diffuser for Side-Angle Visibility

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Solution Overview

Problem

LED optics systems with clear housings and drivable lenses often provide illumination only from the front, making it difficult to perceive the illumination area from other angles, especially when used in stage equipment.

Innovation Solution

Incorporating a diffuser, such as a ring-shaped diffuser, arranged in front of or around the illumination chip and optics, which emits light in directions offset from the primary illumination direction, maintaining ideal optical properties while enabling lateral illumination.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Illumination intensity

If clear optics are used to provide focused illumination, then illumination intensity is improved, but visibility from side angles deteriorates

Engineering Contradiction:
Improveillumination focusVSAvoidvisibility from side angles
Core Design Contradiction:
Illumination intensityVSDifficulty of detecting and measuring

Solution Approach 1:

The illumination body is segmented into multiple illumination units, each containing an illumination chip and optics. This segmentation allows different units to serve different functions - some providing focused illumination while others provide lateral visibility, resolving the contradiction between focus and side-angle visibility

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

A diffuser is introduced as an intermediary element between the illumination chip and the external environment. The diffuser scatters light in multiple directions, enabling the illumination area to be visible from side angles while maintaining the focused illumination function of the optics

Inventive Principle:
Principle #24Intermediary (Mediator)

2Illumination intensity

If drivable lenses are used in closed housings, then illumination focus is improved, but visibility of illumination area deteriorates

Engineering Contradiction:
Improveillumination focusVSAvoidvisibility of illumination area
Core Design Contradiction:
Illumination intensityVSDifficulty of detecting and measuring

Solution Approach 1:

The illumination units can change color (RGB capability), making the illumination area visible from side angles through color emission. This allows the closed housing with drivable lenses to maintain focused illumination while the color-changing capability provides lateral visibility of the illumination area

Inventive Principle:
Principle #32Color changes

3Measurement precision

If optics are arranged to image light along first direction, then illumination precision is improved, but lateral illumination capability deteriorates

Engineering Contradiction:
Improveillumination precisionVSAvoidlateral illumination capability
Core Design Contradiction:
Measurement precisionVSAdaptability or versatility

Solution Approach 1:

Each illumination unit is designed with multi-functionality - the illumination chip can emit light that is both focused by the optics along the first direction for precise illumination and scattered by the diffuser in second directions for lateral illumination. This universal design resolves the contradiction between illumination precision and lateral illumination capability

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

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 diffuser allows illumination to be visible from various angles, enhancing perception of pixel effects and color at any angle, without compromising the primary illumination focus.

Implementation Method 1

the light emitted by the illumination chip and through the diffuser is configured to emit in one or several second directions, different from the first direction

Methodology Applied
Scientific EffectLight scattering: Scattering

Data Source

PatentUS12578072B2Illumination body
Publication Date: 2026.03.17 GLP GERMAN LIGHT PRODS
  • US12578072B2 patent drawing
  • US12578072B2 patent drawing
  • US12578072B2 patent drawing

AI summary

Illumination body, including: at least one illumination unit, wherein each illumination unit includes an illumination chip, optics, and a diffuser, wherein, when viewed in a radiation direction, the optics is arranged in front of the illumination chip, and the light emitted by the illumination chip and through the optics are configured to image along a first direction, and wherein, when viewed in the radiation direction, the diffuser is arranged in front of the illumination chip, and the light emitted by the illumination chip and through the diffuser is configured to emit in one or several second directions, different from the first direction.