Angled Shading Element on Light-Permeable Slat
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Solution Overview
Problem
Conventional slatted roofs and windows face challenges in protecting against atmospheric influences while allowing light and regulating temperature, as opaque slats lead to darkness and heat buildup, and light-permeable slats cause overheating and glare, with limited load-bearing capacity and complex construction.
Innovation Solution
Incorporating a flat shading element that is at least partially opaque, fixed to a light-permeable covering element at an angle, to differentiate between direct sunlight and diffused daylight, allowing selective shading and heat regulation, while enhancing stability and load-bearing capacity.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If light-permeable slats are used, then sunlight can enter the room, but the room heats up due to infrared radiation
Solution Approach 1:
The slat is divided into two functional parts: a light-permeable covering element (front surface) that allows sunlight entry, and a light-reflecting rear surface that prevents infrared radiation from passing through. This segmentation enables the slat to simultaneously provide illumination while blocking heat
Solution Approach 2:
Different surfaces of the slat have different optical properties: the front surface is light-permeable to allow sunlight entry, while the rear surface is light-reflecting to block infrared radiation. This local differentiation of material properties resolves the contradiction between light transmission and heat blocking
2Reliability
If opaque slats are used, then the room is protected against atmospheric influences, but the room becomes dark
Solution Approach 1:
The slat structure separates the protection function (provided by the solid slat body in closed position) from the light transmission function (provided by the light-permeable covering element). When closed, the slat provides weather protection; when open, the covering element allows light entry
3Reliability
If slats are in fully closed position to protect against elements, then ventilation is blocked, but heat builds up under the roof
Solution Approach 1:
The rear surface of the slat has a light-reflecting property (effectively a 'color' or optical characteristic) that reflects infrared radiation. This reflective property prevents heat buildup by bouncing back infrared radiation before it can penetrate into the room, even when slats are in the closed position
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 blocks direct sunlight, allows diffused light, and improves thermal management, reducing overheating and glare, while maintaining sufficient lighting and enhancing the structural stability and load-bearing capacity of the slats.
Implementation Method 1
the shading element blocks direct sunlight, allows diffused light
Implementation Method 2
allows diffused light
Data Source
AI summary
The invention relates to a slat (1) or a slatted roof (20) or a slatted window, comprising a light-permeable sheet-like covering element (2) having a longitudinal extent and width (b), wherein the width (b) is less than the longitudinal extent, and having an axis of rotation (5) which runs along the longitudinal extent of the slat (1) in order to pivot the slat (1) between a closed position and an open position. In order to allow a particularly flexible variation of the incoming sunlight entering a room (22) situated below the slatted roof (20) and in order to be able to set the desired temperature, climate control and brightness conditions in the room in a targeted manner, it is proposed that the slat (1) has at least one light-impermeable sheet-like shading element (6) having a longitudinal extent and a width (h), in which the shading element extends with the longitudinal extent thereof along the longitudinal extent of the covering element (2), that it is arranged with a first longitudinal side (6a) on the covering element (2) and projects with a second longitudinal side (6b), opposite the first longitudinal side (6a), from the covering element (2), wherein the at least one shading element (6) is arranged in the areal extent thereof at an angle (α) to the areal extent of the covering element (2). (FIG. 10).