... colorimeters simultaneously Integrating sphere specification DIAφ0.3m,φ0.5m,φ1.0m,φ1.5m,φ2.0m,φ3.0mOther sizes can be designed according ... on lamps for production and quality control, research, and development.2. Calibration of luminous flux working standards3. Color measurement on light ... more accurate than normal ones. Integrating Sphere Integrating Sphere 1.5m Integrating Sphere