In the rapidly evolving world of entertainment, architectural, and studio lighting, the demand for precise color manipulation and management has never been more critical. The dynamic spectrum control in modern solid-state lighting (LED) and traditional high-intensity discharge (HID) fixtures relies heavily on the quality and durability of color media. As a global frontrunner, Guangzhou Senning Lighting Equipment Co., Ltd. (operating as EV LIGHT) delivers world-class custom dichroic color filters and glass substrates. These components are specifically engineered to withstand intense thermal stressors while outputting precise, non-degrading spectral characteristics.
Historically, the industry relied heavily on standard gel filters. However, with the transition to high-wattage moving heads and high-intensity architectural wash systems, the thermal burden on the front-end optics has escalated. Traditional color gels deteriorate rapidly under high heat, resulting in color shifting, fading, and structural failure. To mitigate these issues, optical designers implement thin-film technology. Dichroic filters utilize constructive and destructive interference patterns to reflect unwanted wavelengths while passing the desired narrow spectral band. EV LIGHT's customized OEM processing allows luminaire designers to customize these bands down to a single nanometer threshold, facilitating seamless, high-intensity color mixing.
Utilizing high-vacuum Magnetron Sputtering and Electron Beam Evaporation to apply ultra-thin, microscopic layers of metal oxides onto Borofloat glass substrates. This guarantees structural stability up to 450°C and eliminates chromatic drift over years of operation.
High-accuracy optimization of Correlated Color Temperature (CCT) shifts. Ideal for television broadcast networks and theatrical stages where color rendering index (CRI) correction and exact daylight-to-tungsten matches are paramount.
Engineered to operate inside IP65/IP66 enclosures. Our optical filters resist humidity-induced delamination, salt spray corrosion, and chemical atmospheric pollutants, safeguarding architectural wash lights in harsh outdoor environments.
At Guangzhou Senning Lighting Equipment Co., Ltd. (EV LIGHT), our optical capabilities extend far beyond standard manufacturing. Within our state-of-the-art 26,000 square meter industrial park, we house cleanroom optical coating laboratories, mechanical cutting lines, and precision inspection stations. By maintaining complete control over our manufacturing processes, we ensure that every custom stage light color filter meets rigorous design requirements. This level of quality control is essential for maintaining long-term reliability and performance in professional lighting applications.
For theatrical venues, broadcasting networks, and architectural installations, color consistency is a non-negotiable metric. Standard manufacturing runs often suffer from batch-to-batch variations due to shifting parameters in the coating chambers. EV LIGHT utilizes advanced computerized optical monitoring systems to dynamically adjust the deposition rate during the thin-film application process. This ensures that every run of CTO, CTB, Magenta, Yellow, or Cyan dichroic filters exhibits identical spectral transmission profiles, allowing multi-fixture arrays to behave uniformly.
Whether your system relies on circular color wheels, linear gradient faders, or static filter frames, our facility delivers precise glass geometry. We process substrates ranging from Borosilicate, Borofloat 33, and Fused Silica to ultra-thin glass plates down to 0.55mm. Our CNC glass processing machinery handles custom shapes, internal holes, and complex edge beveling. This ensures easy integration into motorized moving head fixtures, high-power IP-rated wash lights, and profile spots.
From monumental church installations requiring high-lumen, high-purity color rendition, to commercial linear washes and outdoor live concerts, our custom optics elevate stage lighting performance across global venues.
Our filters are optimized for dynamic B2B usage, such as church installations, theatrical setups, and stadium event lighting. In houses of worship, lighting is critical to setting the mood and maintaining video broadcast color fidelity. Our color correction and dichroic filters provide smooth, high-CRI illumination that looks natural to both the naked eye and high-definition cameras. In concert touring applications, our filters withstand continuous thermal shifts and mechanical shocks as color wheels rotate at high speeds inside high-wattage moving head fixtures.
Merging color-filtering layers with high-efficiency UV and IR reflecting coatings. This prevents heat buildup downstream in the optical assembly, protecting expensive LED engines, lenses, and shutter blades from degradation.
Engineering specialized optics for laser-source fixtures. Narrow transmission profiles allow designers to achieve highly saturated primary colors that remain clear even through dense haze and long throw distances.
Adopting fully compliant, heavy-metal-free, and lead-free deposition practices. Our manufacturing processes align with RoHS and REACH standards, ensuring sustainability throughout the product lifecycle.
With over 90% of our sales generated through OEM and ODM partnerships, primarily within the United States and North American markets, EV LIGHT has developed robust logistics channels to support these demands. Our supply chain is designed to handle rapid prototyping and large-scale runs, facilitating timely delivery for major product launches.
Our manufacturing facility operates in accordance with standard international frameworks. Every batch of color filters undergoes testing using double-beam UV-Vis-NIR spectrophotometers to verify transmission accuracy, out-of-band rejection rates, and wave-front aberration. Additionally, our optical components undergo rapid environmental thermal cycling tests from -40°C to +450°C, ensuring stability under intense thermal loads. This verification process ensures that our components meet the high-reliability demands of the professional entertainment lighting sector.
Dichroic glass filters utilize thin-film optical interference to transmit desired wavelengths while reflecting unwanted light, rather than absorbing it. This results in minimal heat absorption and eliminates color fading, bubbling, or warping, even when positioned close to high-wattage light sources. Additionally, dichroic filters offer precise color transmission peaks and high-efficiency light throughput.
Yes, we specialize in custom color matching. Using advanced spectrophotometer analysis, we can determine the exact chromaticity coordinates (CIE 1931 xy) and transmission curve of your target color. We then custom-engineer the thin-film layer stack to match that target on the selected glass substrate, providing consistent color output across your fixtures.
For high-power fixtures, we recommend Borofloat 33 or Fused Silica. Borofloat glass features low thermal expansion coefficients, providing excellent resistance to thermal shock and high operating temperatures. For ultra-high-temperature requirements (e.g., above 500°C), fused silica is used to prevent thermal cracking or optical distortion under extreme conditions.
For prototype validation, we typically deliver samples within 7 to 10 working days, depending on geometric complexity. Full OEM production cycles generally range from 3 to 4 weeks. This timeline includes precision glass cutting, coating deposition, spectral testing, and secure export packaging. Our logistics network facilitates shipping directly to North American, European, and global manufacturing hubs.
Our thin-film layers are deposited using Ion-Assisted Deposition (IAD) technology. This process packs the microscopic optical layers tightly, resulting in a dense, moisture-resistant coating. This dense structure prevents shifts in spectral performance due to humidity absorption and ensures the coating remains stable in harsh architectural or coastal environments.
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