what is a sphere lighting system?

Integrating spheres are one of the fundamental devices for light sources, lamps, and luminaries measurement. An integrative sphere is also traditionally called the Ulbricht sphere, and its name derives from the name of Richard Ulbricht, a German engineer. He has taken photometric measures to discover the optimum illumination technique while preparing the electronics and lighting of a train station. He demonstrated that the light measured on the sphere wall in which the light source is situated proportionate to the overall light flow. As this device is in the form of a sphere, it is also called a sphere lighting system.

One of the most significant light measurement tests is evaluating total radiant or light source flow using integrated spheres. The inner surface of an integrating sphere is covered with a diffuse reflective substance that ensures the complete integration and homogeneity of emitted radiation. At the detector port, the integrated light is then measured.

The LISUN has created a whole series of integration spheres and is available in a wide variety of sizes to provide a wide range of applications. The maximal measurement dimension of the light source is the decisive element in selecting the relevant integrating sphere. More significant sources necessitate the use of larger integration spheres to minimize measurement errors.

Why should an integrated sphere (Sphere lighting system) be utilized, and what are its values?
The characteristics of the integrating sphere enable comparisons of photometric parameters of various lighting products to be very easy and fast. You may measure an item in the sphere in a few seconds (apart from the time needed for stabilization). This is the quickest method to measure the total luminous flux in the luminaries and calculate the luminous effectiveness with a known power supply. The measurement is straightforward in the sphere lighting system field and enables the results to be directly comparable to the reference standard.

The measurements in the sphere are instantaneous and considerably facilitated, in contrast to goniometer measurements that consist of integrated long-term partial observations for calculating the entire light flow. Almost any operator can get reliable and repeatable measuring results via a well-described and recognized measuring process.

This is essential when numerous lighting items are compared, and various sources are measured. Suppose we have a ready, measured, and approved luminaire prototype. If another kind changes the energy supply unit, or when the light-emitting diode or optical components need to be replaced, the integration sphere becomes an essential instrument for daily working with lighting goods if we want to check the total flux rapidly.

The Ulbricht sphere technology also allows beyond the visible spectral range observations. Integrating spheres are also used to measure infrared radiation in vision systems and industrial equipment – for the fast verification of the energy efficiency of the optical radiation from various spectral bands, an adequately calibrated integrator sphere may be employed.

Another practical benefit of the integrating sphere named the light-tight construction is its fundamental characteristic. You may thus put the integrating sphere in standard office and lit areas without the danger of ambient illumination influencing the measuring result.

Lisun Instruments Limited was found by LISUN GROUP in 2003. LISUN quality system has been strictly certified by ISO9001:2015. As a CIE Membership, LISUN products are designed based on CIE, IEC and other international or national standards. All products passed CE certificate and authenticated by the third party lab.

Our main products are Goniophotometer, Integrating Sphere, Spectroradiometer, Surge Generator, ESD Simulator, EMI Receiver, EMC Test Equipment, Electrical Safety Tester, Environmental Chamber, Temperature Chamber, Climate Chamber, Thermal Chamber, Salt Spray Test, Dust Test Chamber, Waterproof Test, RoHS Test (EDXRF), Glow Wire Test and Needle Flame Test.

Please feel free to contact us if you need any support.
Tech Dep: Service@Lisungroup.com, Cell/WhatsApp:+8615317907381
Sales Dep: Sales@Lisungroup.com, Cell/WhatsApp:+8618917996096