Integrating Spheres-Developing Intelligence from Light

An integrating sphere (also known as an Ulbricht sphere) is an optical component consisting of a hollow spherical cavity with its interior covered with a diffuse white reflective coating, with small holes for entrance and exit ports. Its relevant property is a uniform scattering or diffusing effect. Light rays incident on any point on the inner surface are, by multiple scattering reflections, distributed equally to all other points.
Lungruop's Integrating Spheres are designed for the measurement of the total flux output of lamps and other light sources. The LMS Integrating Spheres range in size from 4 to 76 inches in diameter, offer a highly reflective, durable Spectralon or Spectraflect interior, and can accommodate lamp sizes from sub-miniature incandescent to 52-inch fluorescent lamps.

Goniophotometer make lights pecfect

The use of goniophotometers has been increasing in recent years with the introduction of LED-light sources, which are mostly directed light sources, where the spatial distribution of light is not homogeneous. Due to strict regulations, the spatial distribution of light is of high importance to automotive lighting and its design.
Designed for precision, accuracy and reliability, Lusungroup goniophotometer systems offer strong, stable frames that accept all types and sizes of lights in a range of spectrums including visible/photopic, night vision (NVIS), IR and shortwave IR (SWIR). Goniophotometer units are available in 18-inch tabletop, 30-inch open top, 40-inch, 60-inch, and 80-inch designs to accommodate a wide range of light assemblies including individual LEDs, bulbs, automotive front or rear-end panels, buoys, port lighting and obstruction lights. Lusun heavy duty (HD) series goniophotometer systems test larger, heavier lighting devices. Several versions are also available with five-axis positioning capability.

Integrating Spheres of Lisungroup pvovide the right service for lighting sources

Lisun integrating spheres is coming for all kinds of lighting sources.When availabled in a variety of sizes

to offer customers the most flexibility Lisun integrating Spheres choosing a sphere for their application.

The spheres are extremely robust yet are surprisingly lightweight, compact, and easy to operate.
The function of an integrating sphere is to spatially integrate radiant flux. Before one can optimize a

sphere design for a particular application, it is important to understand how the integrating sphere works.

How light passes through the sphere begins with a discussion of diffuse reflecting surfaces. From this, the

radiance of the inner surface of an integrating sphere is derived and two related sphere parameters are

discussed, the sphere multiplier and the average reflectance. Finally, the time constant of an integrating

sphere as presented is relevant to applications involving fast pulsed or short lived radiant energy.

Lisun goniophotometer is coming for all kinds of lighting sources

Lisun goniophotometer is coming for all kinds of lighting sources!The full determination of the data of luminaires and lamps becomes more and more important.

The lisungroup goniophotometer have realized measuring devices according to the desired range of the measuring objects and also according to the available laboratory space.

Utilized a new image-resolving CCD measuring technique for determining ray data and luminous intensity distributions,the Lisun goniophotomete correctly determinate the luminous intensity distributions (Lid) of lamps and luminaires .What's more the Lisun goniophotometer can also  performed far within their photometric limiting distance on the basis of image-resolved measurements of luminous intensity distributions. 

Integrating Spheres from the Lisun Group – We bring quality to light

Integrating Spheres from the Lisun Group (Hong Kong) limited– We bring quality to light ,

Lisun Group designs and manufactures a variety of good quality integrating spheres and accessories for photometric and radiometric applications.  Our spheres are available in a variety of sizes to offer customers the most flexibility when choosing a sphere for their application. The spheres are extremely robust yet are surprisingly lightweight, compact, and easy to operate.  

Goniophotometers from the Lisun Group – We bring quality to light

Goniophotometers from the Lisun Group (Hong Kong) limited– We bring qualitylight,combined with

a full range of the art photometers, colorimeters, radiometric application and other accessories –  corrected and automated measurement of the brightness  – luminous intensity , illuminance , luminous flux (lumen), retro-reflectivity (mcd/lx), color coordinates from optical radiation sources.

Our goniophotometers are used in the design, develop?ment, production QA testing of lamps and luminaires and in the certification of the final product accoding to relevant international and national regulations, standards and publications such as UN-ECE, SAE, FMVSS108, DIN-EN, CIE, ICAO, FAA, ASTM and others.