Light distribution curve

　　Light distribution curve reflects the ability of lighting control light distribution. In order to achieve the required lighting architects, lighting designers are from a lamp light distribution curve starting to design, arrange lighting.

　　From the chart, Lighting with light-emitting axis of symmetry, C0 / 180 surface is 92.2 degrees, C90 / 270 surface is 105.3 degrees, the average beam angle is 98.8 degrees. From light distribution curve chart, this lighting should be on both sides light, luminary is mounted on C90 / 270 side of the longitudinal direction of the lamps; C90 / 270 curve relatively flat surface, the light guide board can with excellent high transmission rate of the light, more uniform light emitting surface; combining space illuminance curves are examined under the lamp 10m to 50m from 34m cross-section (C0 plane) illuminance distribution.

　　Lighting effective average illuminance

　　Effective average illuminance that reflects the luminous flux emitted by the lighting in the corresponding angle, you can see the corresponding luminance value range of positions. Lighting designer can reasonable calculate the installation angle and distribution according to this chart, in order to obtain satisfactory illuminance.

　　General, office work surfaces requires illumination of 300lx, office desktop height is generally 70cm, can be drawn from this panel lamp mounting height 2.7 meters to 3.2 meters in ideal obtained reasonable illumination.

　　UGR(Unified Glare Rating)

　　Note: The flux of 3626 lighting source needs correction (8log(F/F0) = 4.5)according to the calculation of CIE Pub.117

　　UGR used to measure light indoor visual environment illumination device issued by the human eye discomfort caused by subjective psychological reaction parameters, is an important indicator of light environment. Indoor environments, such as offices, classrooms and other places, lighting long exposure on the human form, CIE proposed concept of unified glare value (UGR)on the basis of comprehensive national realities.

　　According to the Standard of Architectural Lighting Design GB50034-2013, customers’ requirement for UGR should be under 19. And thesample has shown great effort from its designer and producer on UGR,thus ensuring this model one of the best choices for high-end officeenvironment.