CRI-16 Color Rendering Improvement Filter

CRI-16 implements strategic wavelength targeting: peak transmission of 95.5 % at 677 nm paired with minimum of 20.0 % at 447 nm. The filter achieves dramatic asymmetry in green bands - 43.4 % at 510-540 nm but only 28.6 % at 540-580 nm - creating a precise comb that removes yellow-green contamination while preserving cooler green accents. Yellow suppression reaches 32.1 %, complemented by strong red recovery at 73.8 %. High UV passband (82.2 %) and excellent NIR transmission (94.1 %) bracket the visible region. The 67.0 % average transmission balances meaningful CRI improvement against practical light efficiency for LED correction applications.

Key Advantages

• Extreme Yellow-Green Targeting - 540-580 nm transmission at 28.6 % directly addresses the LED phosphor excess in this precise region; CRI improvement concentrates where phosphor-converted sources show maximum deficiency.
• Blue Suppression Without Over-Cutting - 447 nm minimum at 20.0 % removes blue contamination while maintaining 62.0 % blue-band average; sources appear naturally warm without appearing forced or artificially incandescent.
• Exceptional Red Recovery Architecture - 73.8 % red transmission provides strong R9 and R13 boost alongside green-band suppression; dual targeting achieves CRI > 95 while preserving 70 % overall flux.
• Hard-Oxide Ion-Assisted Coating Durability - Complex multi-peak suppression pattern maintained through thermal cycling and 5000+ hour operation; no wavelength shift or curve flattening in continuous broadcast applications.
• Comprehensive Optical Format Range - Round 5-450 mm, square, and bespoke free-form blanks on Borofloat, soda-lime, Schott D263 T, Corning Eagle XG; 0.21-3.8 mm thickness for any installation requirement.

Typical Applications

• Broadcast Studio Color-Critical Lighting - News and dramatic productions using CRI-16 achieve natural skin-tone rendering with minimal post-production color correction; on-air appearance matches legacy tungsten standards.
• Medical Endoscopic Surgery Lighting - Surgical video systems using CRI-16 filtered LEDs eliminate yellow-cast from phosphor peaks; tissue color discrimination remains optimal throughout extended procedures.
• Museum Painting & Artifact Display - Fine-art illumination achieves certified color accuracy without UV or yellow contamination; curatorial documentation reflects true original pigment appearance across exhibition duration.
• Food & Beverage Presentation Lighting - Restaurant and catering displays use CRI-16 to render food naturally appetizing; dishes appear fresher and more vibrant than under standard LED sources, increasing perceived value.
• Photography Studio Fill & Accent Lighting - Product and fashion photography achieves true-to-life color rendering without post-processing; e-commerce images match customer perception, reducing return rates from color mismatch.

CRI-16 samples available in 3-4 weeks from specification confirmation; production volumes support custom blanks, substrate options, and OEM integration pricing from 100 units onward.