Light Distribution Body for Diffuse and Directed Emission

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Solution Overview

Problem

Existing lighting devices that combine diffuse and directed light emission characteristics require separate lighting means, increasing space requirements and production effort.

Innovation Solution

A lighting device with a single lighting means and a light distribution body that emits light in a diffuse manner over the entire exit region and in a directed manner through a frosted surface, utilizing internal reflections and a compact, spherical light distribution body made of transparent material.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If separate lighting means are used to provide diffuse and directed light, then both emission characteristics can be generated simultaneously, but the space requirement and production effort are increased

Engineering Contradiction:

Improveemission characteristic combinationVSAvoidlighting means quantity

Core Design Contradiction:

Adaptability or versatilityVSDevice complexity

Solution Approach 1:

The patent combines multiple lighting functions (diffuse and directed light emission) into a single lighting device by integrating a light distribution body with specific optical properties. The light distribution body is designed with a light coupling-in surface and a light exit region that together enable both emission characteristics from one lighting means, eliminating the need for separate lighting components.

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The light distribution body serves multiple functions simultaneously: it distributes light diffusely over a large region through its light exit region while also directing light in specific directions through its light coupling-in surface geometry. This multi-functional design allows a single component to replace what would traditionally require multiple separate lighting means.

Inventive Principle:

Principle #6Universality (Multi-functionality)

2Adaptability or versatility

If separate lighting means are used to provide diffuse and directed light, then both emission characteristics can be generated simultaneously, but the space requirement is increased

Engineering Contradiction:

Improveemission characteristic combinationVSAvoiddevice space

Core Design Contradiction:

Adaptability or versatilityVSArea of stationary object

Solution Approach 1:

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

The patent utilizes the three-dimensional geometry of the light distribution body to achieve different emission characteristics. By designing the light coupling-in surface with specific curvature and the light exit region with appropriate orientation, the system achieves both diffuse and directed light emission in different spatial dimensions from a single compact structure.

Inventive Principle:

Principle #17Another dimension (Dimensionality change)

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

Achieves a harmonious combination of diffuse and directed light emission with a structurally simple and space-saving design, allowing uniform illumination of large spaces and targeted illumination of limited regions using a single lighting means.

Implementation Method 1

A (second) part of the light coupled into the light distribution body is scattered or distributed by means of the light distribution body such that this part of the coupled-in light is emitted diffusely substantially over the entire light exit region, preferably over the entire light exit region. In this case, the diffusely emitted light is preferably scattered both when emerging from the surface of the light distribution body, which forms the light exit region, and in the case of internal reflections in the interior of the light distribution body.

Methodology Applied

Scientific EffectInternal reflections: Reflection

Implementation Method 2

a light distribution body having a light coupling-in surface and a translucent light exit region, wherein the light distribution body is configured to emit a first part of the light emitted by the lighting means and introduced into the light distribution body via the light coupling-in surface in a directed manner

Methodology Applied

Scientific EffectLight coupling: Refraction

Data Source

PatentUS20250277572A1Lighting device with light distribution body

Publication Date: 2025.09.04 PARO HLDG GMBH

AI summary

Within the scope of the present invention, a lighting device, in particular for lighting an interior, is specified, which comprises a lighting means 3, and a light distribution body 1 having a light coupling-in surface 11 and a translucent light exit region 12; wherein the light distribution body 1 is configured to emit a first part of the light emitted by the lighting means 3 and introduced into the light distribution body 1 via the light coupling-in surface 11 in a directed manner, and to scatter a second part of the introduced light by means of the light distribution body 1, so that the light exits diffusely substantially over the entire light exit region 12 of the light distribution body 1.