Nested Lens Assembly for Lighting Devices
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Solution Overview
Problem
Existing lighting devices with multiple lens arrangements require mechanical intervention to change beam characteristics, limiting flexibility in achieving different light distributions and emission angles.
Innovation Solution
A lighting device with nested lens bodies, each having a radiation entry and exit surface, where the lens bodies are radially arranged with a common plane for entry surfaces and spaced exit surfaces, allowing for independent radiation control and prevention of mutual influence through total reflection, enabling selective control of LEDs for varying beam angles and light distributions without mechanical changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple lens bodies are nested in one another to achieve different beam characteristics, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent implements nesting by placing multiple lens bodies (first lens body, second lens body, third lens body) concentrically within one another, where each lens body has a different optical axis and beam angle. The innermost lens body is surrounded by the second lens body, which is in turn surrounded by the third lens body, creating a compact nested structure that enables multiple beam characteristics from a single integrated arrangement.
2Volume of moving object
If lens bodies are arranged nested in one another to reduce size, then volume is reduced, but manufacturing precision requirements increase
Solution Approach 1:
The patent divides the optical system into multiple independent lens bodies, each with its own radiation source and optical axis. This segmentation allows each lens body to be manufactured and positioned independently, with each lens body contributing a specific beam angle (first beam angle, second beam angle, third beam angle) without requiring ultra-precise alignment of a single complex lens.
3Ease of operation
If separate lens modules are used to enable interchangeable components, then ease of operation is improved, but device complexity increases
Solution Approach 1:
The nested lens body structure serves multiple functions simultaneously: it provides different beam angles for various lighting scenarios, maintains a compact overall size through concentric arrangement, and allows independent control of each lens body's radiation source. This multi-functionality reduces the need for interchangeable modules while maintaining operational flexibility.
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 flexible generation of different beam angles and light distributions by selectively controlling LEDs, allowing for dynamic adjustment of light effects and emission characteristics without mechanical intervention, enhancing adaptability to various lighting situations.
Implementation Method 1
Each lens body is provided with coupling optics on its radiation entry side... The lens bodies are nested in one another, with a second, outer lens body radially surrounding a first, inner lens body
Implementation Method 2
allowing for independent radiation control and prevention of mutual influence through total reflection
Data Source
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AI summary
The invention relates to a multiple lens arrangement for a lighting device, wherein at least two lens bodies, each provided with a radiation entry and exit surface, are nested within one another, with a second, outer lens body (3) radially surrounding a first, inner lens body (1). According to the invention, each lens body (1, 2, 3) is provided with a coupling optic (7, 8, 9) at its radiation entry side, with a lateral, radial distance between the lens bodies (1, 2, 3). Furthermore, the lens bodies (1, 2, 3) with their respective radiation entry surfaces (7, 8, 9) form a common plane (11).