LISUN IS-*MA**P / IS-*MA**C

The IS-MAP and IS-MAC series integrating spheres with side assistant opening are designed per IES LM-79 Clause 9.1.2, which requires both 4π geometry (sphere-based) and 2π geometry (side opening) configurations for LED testing.

LISUN's A-Molding Technology produces a more perfectly round sphere for greater measurement accuracy compared to traditionally assembled multi-piece spheres. The side opening allows large streetlights and floodlights to be inserted with their light-emitting surface directed into the sphere interior.

Ordering codes: IS-1.5MA55P or IS-1.5MA55C (Ø1.5m with 0.5m square or circular opening); IS-1.75MA66P or IS-1.75MA66C (Ø1.75m, 0.6m opening); IS-2.0MA77P or IS-2.0MA77C (Ø2.0m, 0.7m opening). Diameters of 2.5m and 3.0m can be custom designed.

BaSO4 internal coating: ρ(λ)≥0.96 (450–800nm); ρ(λ)≥0.92 (380–450nm). Fine diffuse reflection: ρ≈0.8. All functional lamp testing jigs built-in (E40/E27 vertical, T5/T8/T12 horizontal, LED streetlamp testing holder base). Two photo detector ports, one optical fibre port and one temperature sensor port built-in.

Diameters: Ø1.5m, 1.75m, 2.0m (standard); 2.5m, 3.0m custom | Side opening: square (P) or circular (C), 0.5m to 0.7m | BaSO4 coating: ρ(λ)≥0.96 (450–800nm); ρ≈0.8 diffuse | 2 photo detector ports, 1 optical fibre port, 1 temperature sensor port | Built-in lamp jigs: E40/E27, T5/T8/T12, LED streetlamp holder

• A-Molding Technology for superior roundness and accuracy
• Side opening supports 4π and 2π geometry per IES LM-79 Clause 9.1.2
• Square (P) or circular (C) side opening options
• BaSO4 coating per CIE Pub. No.84 (1989)
• All lamp testing jigs built-in
• Power cable, terminal and auxiliary lamp position built-in
• 2 photo detector ports; 1 optical fibre port; 1 temperature sensor port
• Custom sizes up to 3.0m available

LED streetlight and floodlight total flux measurement; Large luminaire testing; 4π and 2π geometry LED testing per LM-79; CNAS laboratory applications