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Diffusion Screen
Release time：
2026-06-18 10:55
Introduction: Light—A Precisely Controlled Production Factor
Diffusion Screen: The Secret Weapon Boosting Greenhouse Yields by 25%
In modern facility agriculture, light is no longer merely a natural gift but a core production factor that can be precisely regulated.
Unmanaged direct sunlight often creates alternating light and dark "shadow-hotspot" effects within crop canopies, leading to excessive photosynthetic energy in upper leaves while lower leaves suffer from "light starvation," and even causing scorching and heat stress.
The advent of the diffuse light screen marks a shift in greenhouse environmental control from "passive adaptation" to "active creation"—by converting direct sunlight into uniform, gentle diffused light, it activates the photosynthetic potential of entire plants while integrating multiple functions: shading, thermal insulation, and energy conservation.
Core Components
Core Components and Working Principles of the Diffuse Light Screen System
Screen Body The light reshaper. Converts direct sunlight into uniformly diffused light through multiple reflections, refractions and scattering.
Scattering Efficiency Premium products achieve 85%–100% diffuse light conversion.
Light Reflectivity Approximately 68%–70%, effectively reflecting infrared radiation to reduce thermal load.
Light Transmittance Approximately 30%, with transmitted light 100% converted into scattered light.
Light Absorption Rate Only about 2%, significantly lower than the 10% of traditional aluminum foil screens.
Drive System
Rack-and-Pinion Drive and Steel Cable Drive
Rack-and-Pinion Drive System The most common transmission method in large multi-span greenhouses. It offers smooth transmission, high precision, strong load-bearing capacity and long service life.
Rack-and-Pinion Components Geared motor, φ42×3.0mm hot-dip galvanized drive shaft, rack and pinion assembly, φ32×2.0mm hot-dip galvanized push-pull rod, support rollers and drive-side aluminum profile.
Rack-and-Pinion Working Principle The reduction motor drives the gear, converting rotational motion into linear movement along the rack, which drives the push-pull rod to extend or retract the curtain.
Steel Cable Drive System A flexible and economical option for applications with large travel distances or constrained installation conditions, featuring simple structure, low cost and flexible installation.
Steel Cable Components Drive shaft, tensioner and tension sleeve, deflection pulley, sliding assembly and small pulley assembly.
Steel Cable Working Principle The motor drives the reel to rotate, winding the stainless steel cable. The cable is guided through pulleys to pull the curtain, while a precision tensioning device maintains correct cable tension.
Drive System Comparison
Comparison of Two Drive Systems
Rack-and-Pinion Drive High transmission precision, stable operation, strong load-bearing capacity and long service life. Suitable for large multi-span greenhouses, high-precision control scenarios and heavy-duty screens with openable ventilation windows.
Cable Drive Simple structure, low cost, flexible installation and minimal fixed shading. Suitable for greenhouses with large travel distances, sites with installation constraints and economical renovation projects.
Intelligent Drive Integration Modern intelligent drive systems integrate high-precision sensors to monitor light intensity and temperature in real time, automatically adjusting curtain opening according to preset thresholds.
Intelligent Control
The Brain for Precision Decision-Making
By integrating with environmental control systems such as Priva and Hoogendoorn, the shade curtain enables automated management based on cumulative light exposure (DLI) or temperature.
For example, when outdoor light exceeds 800 W/m², the screen opens to 50%; when indoor temperature surpasses 28°C, it opens fully to 100%.
This precise control ensures crops consistently thrive in optimal growing conditions.
Core Value
Why It Is an Essential Investment for Modern Greenhouses
Enhanced Photosynthetic Efficiency Uniform light activation unlocks photosynthetic potential in all foliage and can increase overall photosynthetic efficiency by 10%–25%.
Increased Yield and Quality 7% higher tomato yields and 7% improved cucumber fruit set; ornamentals such as anthuriums and bromeliads can reach market readiness 4–6 weeks earlier with 25% greater plant weight.
Reduced Physiological Stress Effectively prevents leaf scorch, reduces water stress and lowers disease susceptibility.
Uniform Cooling Compared with traditional aluminum foil shades, diffuser curtains reduce canopy temperatures by 2–4°C, with an average reduction of 1.5°C.
Optimized Humidity Distribution Minimizes intense transpiration from localized overheating, maintains stable humidity and reduces disease risks such as downy mildew.
Significant Energy Savings When closed at night, the aluminum foil layer forms an efficient thermal barrier, reducing winter heating energy consumption by 20%–30%. Well-insulated greenhouses can cut heating costs by 30%–60%.
Key Parameters
How to Tailor Your Choice for Crops
Selecting diffuser curtains requires integrating four core factors: crop type, regional climate, greenhouse structure and production goals.
Diffusion Rate The proportion of direct light converted into diffused light. Recommended: >85% for seedlings and high-end leafy greens; 70%–85% for general crops.
Shading Rate The total proportion of solar energy reflected and blocked. Recommended: 30%–50% for strong-light areas or light-loving crops; 50%–70% for shade-tolerant crops.
Light Transmittance The proportion of light allowed to pass through the screen. High-transmittance screens can outperform similar products by 5%–6%, directly impacting yield.
Anti-Drip Performance Prevents condensation from reflecting light. Anti-drip coating is recommended to avoid light loss caused by droplet reflection.
Smart Compatibility Ability to integrate with environmental control systems. Must support automated control based on DLI or temperature.
Industry Validation
Real-World Case Studies
Danish Kalanchoe Cultivation After adopting the diffused light curtain system, greenhouses achieved more light, lower temperatures and higher photosynthetic efficiency. Kalanchoe growth accelerated, plants became fuller and commercial quality improved.
Dutch Rose Cultivation Diffusion screens allow light to penetrate deep into rose canopies, improving stem uniformity, flower color vibrancy and premium rose yield rates.
Spanish Tomato Cultivation Under intense summer heat and sunlight, diffuser screens achieve shading, cooling and light preservation. PAR increases by 27.9%, yielding 12.4 more fruits per square meter within 18 weeks.
Our Solutions
From Products to Light Environment Design
Integrated Design Curtain systems seamlessly integrate with greenhouse structures for stable and reliable operation.
Optimized Drive System Selection Recommend the most suitable drive method based on greenhouse type, scale and usage requirements.
Customized Parameter Consultation Recommend optimal parameter combinations based on crop, climate and production goals.
Smart Control Strategy Support Assist in setting automation logic for precise environmental regulation.
Long-Term Performance Assurance Use top-tier anti-aging and anti-static materials to ensure lasting optical stability.
Diffusion screens represent a strategic investment in “light” as a key production factor. They optimize core variables for crop growth, yielding returns through higher yields, superior quality, reduced energy consumption and more stable production.
In an era of increasingly frequent extreme weather and intensifying agricultural competition, a greenhouse with an optimized light environment holds the most critical competitive advantage.
Add：No. 50, Lane 100, Jiaqian Road, Nanxiang Town, Jiading District, Shanghai, China
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