Sauna Backlit Wall Covering with Adhesive Diffuser
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Solution Overview
Problem
Conventional backlit wall coverings for saunas face challenges in withstanding high temperature fluctuations, leading to warping and disfigurement of wood lamellae, which affects the longevity and aesthetic appeal of the original design.
Innovation Solution
A backlit wall covering design featuring wood lamellae spaced from each other, with a diffuser adhesively bonded to their rear sides, providing additional support and using LED lighting for energy-efficient and adjustable illumination, along with a PET layer and heat-stable adhesive to prevent deformation and enhance light scattering.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Shape
If wood lamellae are used for wall covering in saunas, then aesthetic appeal and natural appearance are improved, but warping occurs due to temperature fluctuations
Solution Approach 1:
The patent applies composite materials by combining wood lamellae with a diffuser layer and support structure. The diffuser layer is adhesively bonded to the rear side of the wood lamellae, creating a composite construction that prevents warping while maintaining the aesthetic appearance of the wood. This composite structure allows the wood to retain its natural look while the diffuser provides dimensional stability under temperature fluctuations.
Solution Approach 2:
The diffuser layer acts as an intermediary element between the wood lamellae and the backlighting system. It is bonded to the rear side of the wood, serving as a mediating layer that provides structural support and prevents direct exposure of the wood to temperature-induced warping, while still allowing light to pass through to create the desired aesthetic effect.
2Duration of action of stationary object
If diffuser is adhesively bonded onto the rear sides of wood lamellae, then warping is prevented and design longevity is improved, but manufacturing complexity increases
Solution Approach 1:
The diffuser is pre-cut to match the dimensions and pattern of the wood lamellae before assembly. This preliminary preparation allows for precise fitting and simplifies the assembly process, as the diffuser pieces are ready to be bonded to the rear sides of the wood lamellae without requiring complex on-site adjustments or custom fitting during installation.
Solution Approach 2:
Both the wood lamellae and diffuser are divided into modular segments or panels that can be manufactured separately and then assembled. This segmentation allows for standardized production of individual units with pre-bonded diffusers, simplifying the manufacturing process while ensuring consistent quality and long-term durability of the wall covering system.
3Use of energy by moving object
If LED lighting is used for backlighting, then energy efficiency is improved, but illumination uniformity may be compromised
Solution Approach 1:
The LED lighting system employs local quality by varying the intensity or distribution of light in different zones behind the wall covering. Different LED modules can be programmed to emit different brightness levels, creating a uniformly perceived illumination when viewed from the front, while maintaining overall energy efficiency through targeted lighting rather than uniform high-intensity illumination across all areas.
Solution Approach 2:
The diffuser layer serves as an intermediary that distributes and softens the LED light output. It scatters the light from the LED sources, eliminating harsh spots or uneven brightness patterns and creating a uniform, pleasant illumination effect across the entire wall covering surface, while the LED system itself remains energy-efficient.
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 effectively prevents warping of wood lamellae, maintains the original design, and provides pleasant, adjustable illumination while ensuring durability and energy efficiency, thereby extending the lifespan of the wall covering.
Implementation Method 1
A diffuser is a light-scattering layer of material that can be made of various materials, such as paper, and is preferably flexible.
Implementation Method 2
a diffuser is adhesively bonded onto the rear sides of the wood lamellae
Implementation Method 3
The lighting is preferably LED lighting, in particular from below, which creates backlighting of the wall covering that is pleasant to the user and energy-efficient.
Implementation Method 4
the diffuser has a PET layer in addition to at least one light-scattering paper layer, where the PET layer is preferably arranged as a middle layer between two paper layers. The PET layer additionally strengthens the diffuser without significantly influencing its light-transmissivity.
Implementation Method 5
the diffuser is adhesively bonded to the rear sides of the wood lamellae using white adhesive mixed with hardener which remains stable at sauna temperatures
Data Source
AI summary
The disclosure relates to backlit wall covering for a sauna with wood lamellae arranged spaced from one another and fastened to slats spaced from one another. A diffuser is adhesively bonded onto the rear sides of the wood lamellae.