Projector

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Marketing Claim Verified by UL Solutions

Low Blue Light Hardware GOLD Flicker-free

Verification Method

Low Blue Light Hardware Solution GOLD The minimum qualification criteria under this program is as follows: - Blue light risk group “Exempt” or better, per IEC 62471 Ed. 1.0, Photobiological Safety Of Lamps And Lamp Systems or measured luminance less than 104 cd*m-2 (per IEC 62471:2006 Cl. 4.1) - Color Temperature between 5500K and 7000K - The radiance ratio of light in the range 415nm-455nm verses a total range of 400nm-500nm cannot exceed 52% A radiance ratio not greater than 52% is required for “Bronze” level performance. A radiance ratio not greater than 50% is required for “Silver” level performance. A radiance ratio not greater than 48% is required for “Gold” level performance. A radiance ratio not greater than 46% is required for “Platinum” level performance. Flicker-free The assessment offered under this program based on testing per: ISO 9241-305, Ergonomics Of Human-System Interaction - Part 305: Optical Laboratory Test Methods For Electronic Visual Displays, Section 15.3 ISO 9241-307, Ergonomics Of Human-System Interaction - Part 307: Analysis And Compliance Test Methods For Electronic Visual Displays, Table 147 Temporal instability IEEE 1789, IEEE Recommended Practices For Modulating Current In High-Brightness LEDs For Mitigating Health Risks To Viewers (Low-Risk Level and No Observable Effect Level (NOEL)) The whole image area shall be free of flicker to at least 90 % of the user population. Results assessed in the Low-Risk Level and No Observable Effect Level (NOEL) qualify for the claim “Flicker Free Projector”.

What is UL Verification?

UL Verification is an objective, science-based assessment that confirms the accuracy of marketing claims. Our independent assessment process scrutinizes the validity of specific advertising or promotional statements, giving you a way to separate verified fact from fiction.