IS-*MT — LISUN Integrating Sphere

The IS-MT Constant Temperature Integrating Sphere is designed to meet IEC standard requirements specifying 25°C test temperature. High-power lamps such as HID lamps and LED outdoor luminaires generate significant heat during testing, causing the sphere interior temperature to exceed IEC requirements. The IS-MT maintains constant air temperature throughout the test.

Temperature range: 25°C–55°C (referenced to ambient 25°C). Temperature increasing tolerance: ±1°C; temperature-down tolerance: ±2°C. BaSO4 material: ρ(λ)≥0.96 (450–800nm); ρ(λ)≥0.92 (380–450nm). Fine diffuse reflectance ρ≈0.8.

Available diameters: IS-0.3MT to IS-2.0MT. All include built-in lamp jigs (E40/E27, T5/T8/T12, LED streetlamp holder), cross laser for centering, power cable and socket, two photo detector ports, one optical fibre port and one temperature sensor port. Auxiliary lamp position built-in.

Flux ranges: IS-0.3MT/0.5MT: 0.001–1,999lm; IS-1.0MT: 0.1–199,990lm; IS-1.5MT/1.75MT: 0.1–1,999,900lm; IS-2.0MT: 0.1–1,999,900lm.

Diameters: Ø0.3m to Ø2.0m | Constant temperature range: 25°C–55°C (ref 25°C ambient) | Temperature accuracy: ±1°C (rising), ±2°C (falling) | BaSO4 coating: ρ(λ)≥0.96 (450–800nm); ρ≈0.8 diffuse | 2 photo detector ports; 1 optical fibre port; 1 temperature sensor port | Cross laser built-in

• Constant temperature control: 25°C–55°C for accurate HID and high-power LED testing
• BaSO4 coating per CIE Pub. No.84 (1989)
• Cross laser for centre alignment
• Built-in jigs: E40/E27, T5/T8/T12 tubes, LED streetlamp holder
• Top or bottom holder installation
• Power cable and socket built-in
• Auxiliary lamp position (lamp optional)
• Sizes Ø0.3m to Ø2.0m; custom sizes available

HID lamp testing at controlled temperature; High-power LED outdoor luminaire testing; Lumen maintenance testing (LM-82); Production and laboratory calibration requiring IEC standard temperature compliance