CTO-062 Color Temperature Orange (Warming) Filter

CTO-062 rounds out the CTO series with a standard half-CTO crossover at 567 nm and a peaked orange-red passband. Transmission exceeds 85 % from 606-680 nm, peaking at 95.6 % at 635 nm - right in the orange-red sweet spot. Blue is suppressed to 20.3 %, green to 31 %, while NIR rolls off moderately to 78.9 %. The combination of a standard half-CTO crossover with an orange-red peak and moderate NIR makes CTO-062 a versatile, middle-of-the-road warm filter with strong visual colour impact.

Key Advantages

• 50 % crossover at 567 nm with peak of 95.6 % at 635 nm - centres maximum output in the orange-red for strong visual warmth at standard half-CTO intensity.
• T > 85 % from 606-680 nm - provides a well-defined warm passband covering the most visually impactful warm wavelengths.
• Moderate NIR roll-off (78.9 % average) - balances warm NIR throughput with heat management.
• Hard-oxide durability - ion-assisted coating resists heat, humidity, solvents, and cleaning.
• Custom formats available - round, square, or free-form blanks from 5 mm to 450 mm, thickness 0.21-3.8 mm, on Borofloat®, soda-lime, Schott D263 T, or Corning Eagle XG substrates.

Typical Applications

• Stage and event lighting - delivers a versatile half-CTO with an orange-red punch for warm scene design and colour matching.
• Film and broadcast production - provides standard half-CTO conversion with a visually satisfying orange bias for on-camera warmth.
• Architectural and hospitality lighting - shifts cool-white sources to a warm ambiance with strong perceived warmth from the orange peak.
• Photography warm filtration - delivers a half-CTO with excellent visual warmth and moderate NIR for clean digital capture.
• LED colour tuning - converts 5600 K LED modules toward 3800 K with concentrated orange-red output for maximum visual impact.

Need prototypes in days or production volumes next quarter? CTO-062 filters can be coated, diced, and shipped to your exact specifications.