Greenhouse Cover Member for Blue-Violet Light Filtering
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Solution Overview
Problem
In-store greenhouses emit blue-violet light, which is optimal for plants but disturbing to customers, and existing solutions fail to effectively modify or filter this radiation to prevent light pollution and maintain optimal plant growth.
Innovation Solution
A translucent cover member for greenhouses, configured as a filter, converter, or polarizer, using layers or films that can modify or add radiation to convert blue-violet light to white light, incorporating color filters, luminescent substances, or organic light-emitting diodes to filter out specific wavelengths and add complementary radiation, ensuring non-disturbing light emission.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If blue-violet lighting is used in in-store greenhouses, then plant growth is optimized, but customers perceive it as disturbing
Solution Approach 1:
A cover member with wavelength-selective transmission properties is introduced as an intermediary between the blue-violet interior lighting and the exterior environment. This cover member allows blue-violet light to pass through for plant growth while blocking or filtering the same wavelengths from exiting to the exterior, thereby preventing disturbing light emission while maintaining productivity
Solution Approach 2:
The cover member is designed with specific optical properties that selectively transmit blue-violet wavelengths (400-500nm) inward while preventing their outward transmission. This creates a directional color filtering effect where the same wavelengths beneficial for plants are contained within the greenhouse, transforming the light emission profile from disturbing blue-violet to acceptable white or neutral appearance from the exterior
2Object-affected harmful factors
If radiation modification is implemented to change light hue, then light pollution is reduced, but device complexity increases
Solution Approach 1:
The cover member utilizes materials with specific optical transmission parameters that naturally filter blue-violet wavelengths. By selecting materials with appropriate spectral transmission characteristics, the patent achieves radiation modification without complex mechanical or electronic systems, thereby reducing device complexity while still preventing light pollution
Solution Approach 2:
The cover member may employ composite material structures combining different layers or substances with complementary optical properties. This allows for tailored wavelength-selective transmission where multiple material properties work together to achieve the desired filtering effect, managing complexity through material science rather than mechanical complexity
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 allows for the emission of non-disturbing white light from in-store greenhouses, enhancing plant growth and reducing light pollution, while maintaining a visually appealing appearance and being cost-effective and adaptable to dynamic light spectra.
Implementation Method 1
the cover member is configured as a filter which filters out specific wavelengths, in particular blue-violet wavelengths of the radiation
Implementation Method 2
the pane or hothouse film comprises a conversion substance, or a luminescent substance, or a luminescent substance mixture in order to act as a converter
Implementation Method 3
the cover member acts as a polarizer for influencing the radiation. Thus, at least parts of the radiation which exit the in-store greenhouse can be filtered out over all wavelengths by utilizing the polarization
Data Source
AI summary
A cover member for an in-store greenhouse is disclosed, with which radiation exiting the in-store greenhouse can be influenced or modified, so that outgoing total radiation has a white color on the Planck curve.