| IES RP-1-04, Recommended Practice for Office Lighting | IES RP-3-00, Recommended Practice for Lighting Education Facilities | IES RP-7-01, Recommended Practice for Lighting Industrial Facilities | |
| General glare (excessive luminances or luminance contrasts in field of view) | 1. Avoid high-brightness contrasts in field of view 2. Increase brightness of background to very bright objects 3. Raise the glare source | ||
| Direct glare (caused by high luminances or unshielded light sources) | 1. Reduce relative brightness of luminaires and windows 2. Shield view of bright sources 3. Increase brightness of background to very bright objects | 1. Low-brightness luminaires 2. Control window luminances (e.g., shades, louvers) | 1. Reduce the luminance or area of the glare source (e.g., luminaire shielding) 2. Raise the glare source further above line of sight 3. Increase ambient illuminance |
| Reflected glare (caused by high luminance sources or veiling reflections) | 1. Locate luminaires or shield windows to avoid problems with ted glossy surfaces 2. Large area, low-luminance luminaires or indirect lighting 3. Ant-reflection coatings or filters for computer screens | 1. Place illuminance on both sides of task 2. Special luminaire optical designs 3. For VDT applications, use monitor with diffuse reflecting screen and dark test on bright background | On VDTs: 1. Total cutoff of light source images 2. Change VDT orientation and position 3. Improved-contrast screens 4. Block view of light sources in offending zone |
| Disability glare (veiling luminance covers retina) | 1. Reduce illuminance on eyes 2. Raise glare source | ||
| Discomfort glare (luminous image has much higher luminance than balance in field of view) | 1. Size, luminance and source/eye/task geometry are factors |
