Glare Control Diffusers
G-Series Glare Control and Gain Diffusers
G-Series diffusers suppress high-angle light above 65 degrees to reduce visual glare and improve the Unified Glare Rating (UGR) of luminaires. This helps luminaires comply with IESNA RP1-04 and EN12464 glare specifications. These patented2 and patent-pending diffusers, unlike conventional prismatic sheets, have a soft cutoff with no color separation thereby increasing visual appeal and LED hiding ability.New! G-GH85 diffusers offer improved hiding of LEDs.
G-Series diffusers can increase central (on-axis) candela intensity by up to 30%, or as high as 60% when used with a C-HE55 or C-HE80 diffuser.
New! An optional anti-wet-out coating is available on the back surface for compatibility with edge lit lighting (light guide plates).
L65° / L0°
(% of CBCP,
Lower is better)1
L0° G-Series / L0° Lambertian
(Typical Edge-Lit Panel)1
|Angle FWHM (Typical)1||Efficiency in LED luminaire (Typical)1
|| 89 - 93%
|G-GPHS||1.5 mm Hex Pattern
||15%||130%||160%||90°|| 89 - 93%
|G-GPHM|| 2.4 mm Hex Pattern
||13%||130%||160%||90°||89 - 93%|
|G-GPHX|| 10 mm Hex Pattern
||12%||130%||160%||90°||89 - 93%|
|| Smooth with LED hiding
89 - 93%
| Lambertian Source
||(provided for reference)
Glare Control diffusers exhibit a variety of appearances depending on illumination conditions.They can be used in conjunction with C-Series diffusers to better hide light sources and further increase gain.
- G-Series diffusers must be flat to achieve glare control; they cannot be formed in curves around lamps
- G-Series diffusers must be used with the microstructure facing away from the LED or lamp
- Helps luminaries meet ANSI/IESNA RP-1-04 and EN12464 glare standards for office/indoor lighting
- Suppression of glare and efficiencies are typical; they vary greatly depending on luminaire design
- Bright View applications engineers can assist with product choices and help your design achieve peak performance
1Optical performance including Glare, Gain, Angles and Efficiencies are typical; they vary greatly depending on luminaire design. Results shown were measured using a test fixture with lambertian light source in a goniophotometer.
2Protected by patent US9086521, other patents, and pending patent(s).