Due to the lighting fixtures self-absorption, if the integrating sphere is more big, then the test results will be more accuracy. LISUN can produce the super big such as diameter 2.5m, 3m, 3.5m and 4m integrating sphere.
LISUN add the infrared anti-pinch device to do safety protect if somebody install inside when the sphere was closing (Please check the video). The more information for the 3m sphere design please refer to article The New Design 3m Electric Integrating Sphere for more information.
• Painting material of integrating spheres is according to CIE Pub.No.84 (1989)
• The painting material is BaSO4 coating: ρ (λ) ≥0.96 (450nm~800nm) and ρ (λ) ≥0.92 (380nm~450nm)
• Fine diffuse reflection: Reflectance ρ≈0.8 and accuracy of ρ (λ) <1.5%
• Build-in all functional lamp testing jigs: the vertical is for E40/E27, the horizontal is for T5/T8/T12 tubes and the Testing Holder Base for LED street luminiares. All of the testing jigs can allow the lamp be tested up and down in the sphere.
• Power Cable, Power Terminal and Auxiliary lamp position has been built-in (Auxiliary lamp is option).
• Power cable and socket has been build-in, it is convenient to power the testing lamp
• Two photo detector ports, one optical fiber port and temperature sensor hole are built-in
• Build-in Cross laser which help to install the standard lamp and testing lamp in the center of the integrating sphere