Diffuser Systems

ICEIL – Integrated Architectural Diffuser Systems

ICEIL supports architects and consultants with:

Seamless Integration: Multiple diffuser technologies under one system
Custom Sizing & Shapes: Custom sizing and integration support
High Optical Efficiency: Lighting + ceiling coordination
Durability: Manufacturing-led quality assurance

1. Prism Reverse Conical Acrylic Diffuser (UGR≤ 19)

Application focus: Offices, workstations, education, glare-critical interiors

Optical Principle

Uses a concave hexagonal reverse conical prism geometry with a unidirectional optical structure. This controls luminance across all C-planes, delivering homogeneous glare suppression.

Performance Summary:

UGR: ≤ 19 (workplace compliant)
Light transmission: 90–95%
Haze: 90–91%
Beam angle: 85° (defined, task-oriented)
Prism depth: 0.6 mm

Material & Construction

Optical-grade PMMA (acrylic)
Precision-formed prism structure
PE protective film

Sizes

1200 × 1200 mm
Thickness: 1.5 / 2.0 / 3.0 mm
Custom mould sizes available

Why Architects Specify It:

Guaranteed UGR ≤ 19 compliance
Higher efficiency than matte or orange-peel diffusers
Suitable for task-based and human-centric lighting

2. PMMA Diffuser Sheet (JK-76)

Application focus: LED panels, recessed ceilings, ambient architectural lighting

Optical Principle

A dual-surface optical acrylic diffuser: frosted surface for diffusion, smooth surface for clean transmission. This balances brightness and softness while masking LED points.

Performance Summary:

Light transmission: 85%
Haze: 97%
Light output: Soft, uniform
Operating temperature: 0–80°C

Material & Construction

Optical-grade PMMA
Precision diffusion additives
PE protective film

Sizes

1200 × 1200 mm
Thickness: 1.0 / 1.2 / 1.5 / 2.0 mm
Custom sizes available

Why Architects Specify It:

Excellent LED dot masking
Premium smooth acrylic appearance
Ideal for ambient and general lighting layers

3. PC Diffuser Sheet (JK-DD70)

Application focus: Slim luminaires, linear lighting, high-durability systems

Optical Principle

A rigid polycarbonate diffuser with dual-side matte surface that scatters LED light evenly while maintaining mechanical strength.

Performance Summary:

Light transmission: 70%
Haze: 95%
Operating temperature: 0–100°C
Fire rating: UL 94 V2 / V0

Material & Construction

Optical-grade Polycarbonate (PC)
High-quality diffusant additives
PE protective film

Sizes

1220 × 2440 mm
Thickness: 0.8 / 1.0 / 1.2 / 1.5 / 2.0 mm
Custom sizes available

Why Architects Specify It:

High impact resistance
Stable under heat
Suitable for compact, modular, and linear luminaires

4. Blue Sky Light LGP (Daylight Simulation Panel)

Application focus: Enclosed spaces without natural daylight

Optical Principle

Based on Rayleigh scattering technology, nano-particles embedded in PMMA/PS simulate how sunlight scatters in the atmosphere—creating a realistic blue sky visual when illuminated.

Performance Summary:

Light transmission: 92% (±0.5%)
Harmful blue light reduction: ~20%
Surface hardness: 4H

Material & Construction

Optical-grade PMMA or PS resin
Embedded nano-particle technology
Scratch-resistant surface
Optional mirror finish

Sizes

1220 × 2440 mm
Thickness: 2 / 3 / 4 / 5 mm
Custom mould sizes available

Why Architects Specify It:

Creates perceived sky depth, not flat illumination
Improves well-being and spatial openness
Ideal for biophilic and human-centric lighting design

5. Stretch Fabric Diffuser for Luminous Ceilings

Application Focus: Large interiors – hospitality spaces, airports, shopping malls, and public zones

Flexible Luminous Membrane

Optical Principle

A tensioned stretch fabric membrane diffuses backlighting uniformly, creating a seamless luminous ceiling without visible hotspots.

Performance Summary:

Light output: Soft, uniform ambient glow
Visual effect: Continuous luminous surface
Glare control: Comfortable, non-directional diffusion
Acoustic option: Sound-absorbing variants available

Material & Construction

Stretch PVC fabric diffuser
Tensioned system for stable, sag-free large spans
Compatible with integrated backlighting systems

Sizes

Seamless spans: Up to 5 m
Custom sizing: Available for project-specific layouts

Why Architects Specify It:

Lighting becomes a space-defining architectural element
Ideal for luminous and seamless backlit ceilings
High design flexibility (colours, finishes, prints)
Optional acoustic performance for large interiors

Quick Specification Guidance

UGR compliance required (offices)? → Prism Reverse Conical Diffuser
Soft, premium ambient lighting? → PMMA Diffuser
Slim, durable luminaires? → PC Diffuser
No daylight access? → Blue Sky Light LGP

Architect Summary

ICEIL's diffuser range allows architects to specify lighting by performance, not compromise—from glare-controlled workspaces to daylight-inspired interiors and seamless ambient ceilings. This single platform enables comfort, compliance, and architectural intent to coexist.

Architectural Lighting Diffuser Comparison Guide
PC, PMMA, Stretch Fabric, Blue Sky LGP & UGR Prism Diffusers

Parameter	PC Diffuser	PMMA Diffuser	Stretch Fabric Diffuser	Blue Sky Light LGP	Prism Reverse Conical Diffuser
Material	Polycarbonate	PMMA (Acrylic)	Stretch PVC Fabric	Optical PMMA / PS	Optical PMMA
Diffuser Type	Rigid	Rigid	Flexible	Light Guide Panel	Optical Prism
Light Output	Bright	Soft & balanced	Soft & uniform	Sky-like daylight	Controlled, glare-free
Glare Control	Basic	Moderate	Moderate	Visual comfort	UGR ≤ 19
Light Transmission	~70%	~85%	High (soft)	High	90–95%
Haze	High	Very High	Very High	Controlled	90–91%
Max Panel Size	1220 × 2440 mm	1200 × 1200 mm	Up to 5 m	1220 × 2440 mm	1200 × 1200 mm
Depth Requirement	Low (50–115 mm)	Low–Medium	Medium–High (75–150 mm)	Panel-based	Panel-based
Acoustic Property	✕	✕	✔	✕	✕
Custom Graphics	✕	✕	✔ (UV printable)	Sky effect	✕
Fire Rating	UL94 V0/V2	UL94	Fire-rated fabric	UL compliant	UL94 HB
Warranty (Typical)	3 years	3–5 years	5 years	Project-based	Project-based
Ideal UGR Compliance	✕	✕	✕	✕	✔

Product Name	Prism Reverse Conical Acrylic Diffuser
Model No.	JK-LZB
Diffuser Type	Prismatic reverse conical (concave hexagon, cone bottom)
Base Material	Optical-grade PMMA (Acrylic)
Surface / Structure	Unidirectional prism structure for homogeneous appearance
UGR Rating	≤ 19
Average Beam Angle	85°
Light Transmission	90% – 95%
Haze	90% – 91%
Water Absorption	0.28%
Heat Distortion Temperature	100°C
Vicat Softening Temperature	110°C
Tensile Strength	270 kg/cm² (≈ 3830 lb/in²)
Tensile Elongation	5%
Specific Gravity	1.2
Heat Release Rate (HRR)	97
Flammability	UL 94 HB (1/16")
Standard Dimensions (L × W)	1200 mm × 1200 mm
Thickness Options	1.5 mm / 2.0 mm / 3.0 mm
Prism Pattern	Concave hexagon, cone bottom
Prism Depth	0.6 mm
Custom Sizes	Available based on project-specific moulds
Operating Temperature Range	0°C – 80°C
Storage Temperature	25°C ±10
Relative Humidity	45% – 75%
Primary Application	LED panel lights (side-lit systems), workstations
Installation Requirement	Used with diffusion film and LGP; prism texture facing the observer

Product Name	PMMA Diffuser
Model No.	JK-76
Base Material	Optical-grade PMMA (Acrylic)
Surface Finish	One frosted surface, one smooth surface
Product Type	Rigid optical diffuser sheet
Primary Application	LED panel luminaires, recessed luminaires
Ingredients	PMMA, diffusant additives, PE protective film
Standard Dimensions (L × W)	1200 mm × 1200 mm
Thickness Options	1.0 mm / 1.2 mm / 1.5 mm / 2.0 mm
Custom Sizes	Available based on project-specific moulds
Light Transmission	85%
Haze	97%
Water Absorption	0.3%
Operating Temperature Range	0°C – 80°C
Storage Temperature	25°C ±10
Relative Humidity	45% – 75%
Heat Distortion Temperature	88°C
Vicat Softening Temperature	104°C
Linear Thermal Expansion	7.8 × 10⁻⁵ cm/°C
Thermal Conductivity	4.5 × 10⁻⁴ cal/cm·sec·°C
Heat Release Rate (HRR)	123
Flammability	UL 94 compliant

Product Name	PC Diffuser
Model No.	JK-DD70
Base Material	Optical-grade Polycarbonate (PC)
Surface Finish	Two-side matte surface
Product Type	Rigid optical diffuser sheet
Primary Application	LED panel luminaires, recessed luminaires
Ingredients	Polycarbonate, diffusant additives, PE protective film
Standard Dimensions (L × W)	1220 mm × 2440 mm
Thickness Options	0.8 mm / 1.0 mm / 1.2 mm / 1.5 mm / 2.0 mm
Custom Sizes	Available based on project-specific moulds
Light Transmission	70%
Haze	95%
Water Absorption (24 hrs)	10 mg
Water Absorption (Saturation @ 23°C)	0.35%
Operating Temperature Range	0°C – 100°C
Storage Temperature	25°C ±10
Relative Humidity	45% – 75%
Heat Distortion Temperature	130°C
Vicat Softening Temperature	140°C
Linear Thermal Expansion	7.0 × 10⁻⁵ /°C
Thermal Conductivity	0.2 W/m·°C
Oxygen Index	25%
Flame Retardant Grade	UL 94 V2 / V0

Product Name	Blue Sky Light LGP
Model No.	JK-RLLGP
Base Material	Optical-grade PMMA or PS resin
Optical Technology	Rayleigh Scattering using nano-sized particles
Visual Effect	Blue sky appearance after illumination; clear when not illuminated
Blue Light Reduction	Approx. 20% harmful blue light reduction
Application Type	Edge-lit panel lighting (replaces traditional LGP + diffuser sheet)
Surface Options	Scratch-resistant surface; optional mirror finish
Standard Dimensions (L × W)	1220 mm × 2440 mm
Thickness Options	2.0 mm / 3.0 mm / 4.0 mm / 5.0 mm
Custom Sizes	Available based on project-specific moulds
Light Transmission	92% (±0.5%)
Water Absorption	0.3%
Heat Distortion Temperature	88°C
Vicat Softening Temperature	104°C
Linear Thermal Expansion	7.8 × 10⁻⁵ cm/°C
Thermal Conductivity	4.5 × 10⁻⁴ cal/cm·sec·°C
Surface Hardness (Coated)	4H (ASTM D3363)
Flammability	UL 94 compliant
Adhesion Strength	5B (30 minutes boiling water test)
Protective Layer	PE protective film
Typical Applications	Offices, underground parking, metro/subway stations, schools, secure rooms

Product Name	ICEIL Stretch Ceiling PVC Roll, Fire Retardant Grade B1
Thickness	0.18 mm to 0.28 mm
Width	1.5 m, 1.8 m, 2.0 m, 2.5 m, 2.8 m, 3.0 m, 3.2 m, 4.0 m, 5.0 m (customisable on request)
Length	100 m per roll (width ≤ 3.2 m) / 50 m per roll (width > 3.2 m)
Material	PVC Stretch Ceiling Film
Net Weight	240–320 g/m²
Load Capacity (Afford Weight)	195 kg per square metre
Thickness Tolerance	0.18 mm ±10%
Light Transmission	75% (translucent film) / 25–30% (lacquer film) / 35–40% (matte film) / 10–25% (suede film)
Working Temperature	−30°C to +65°C
Maximum Tensile Strength	Up to 17 MPa
Ultimate Tensile Strength	30 N (lengthwise and edgewise)
Fire Rating	B1 Fire Retardant Grade
Available Types / Finishes	Glossy film, Matte film, Satin film, Translucent film, Brushed suede film, Marble film, Perforated film, Metallic film, Painting film, Printed film, Mirror film

Diffuser Systems

ICEIL – Integrated Architectural Diffuser Systems

1. Prism Reverse Conical Acrylic Diffuser (UGR≤ 19)

Application focus: Offices, workstations, education, glare-critical interiors

Optical Principle

Performance Summary:

Material & Construction

Sizes

Why Architects Specify It:

2. PMMA Diffuser Sheet (JK-76)

Application focus: LED panels, recessed ceilings, ambient architectural lighting

Optical Principle

Performance Summary:

Material & Construction

Sizes

Why Architects Specify It:

3. PC Diffuser Sheet (JK-DD70)

Application focus: Slim luminaires, linear lighting, high-durability systems

Optical Principle

Performance Summary:

Material & Construction

Sizes

Why Architects Specify It:

4. Blue Sky Light LGP (Daylight Simulation Panel)

Application focus: Enclosed spaces without natural daylight

Optical Principle

Performance Summary:

Material & Construction

Sizes

Why Architects Specify It:

5. Stretch Fabric Diffuser for Luminous Ceilings

Application Focus: Large interiors – hospitality spaces, airports, shopping malls, and public zones

Optical Principle

Performance Summary:

Material & Construction

Sizes

Why Architects Specify It:

Quick Specification Guidance

Architect Summary

Architectural Lighting Diffuser Comparison GuidePC, PMMA, Stretch Fabric, Blue Sky LGP & UGR Prism Diffusers

Architectural Lighting Diffuser Comparison Guide
PC, PMMA, Stretch Fabric, Blue Sky LGP & UGR Prism Diffusers