About us

Since our inception in 1992, KUPO Optics has been at the forefront of the optical coatings and filters industry. With a steadfast commitment to quality, we've carved out a distinguished reputation, providing top-tier optical solutions. Our focus on maintaining high standards has positioned us as a leader in the professional optical filter market, catering to a diverse range of industries with unmatched expertise and precision.

State-of-the-art Facilities

Our dedication to excellence is reflected in our investment in cutting-edge production technology. Our arsenal includes advanced planetary coating machines, precise linear and laser cutting tools, and high-resolution spectrometers. This sophisticated equipment enables us to craft filters and coatings with exceptional accuracy and consistency, ensuring each product meets our stringent quality benchmarks.


Wide Range Applications

KUPO Optics' products find their application across a vast array of fields. We cater to sectors as diverse as medical and fluorescence imaging, machine vision, astronomy, defense systems, and entertainment. Our optical filters and coatings are integral in enhancing the performance and functionality of various devices and systems in these industries.


Flexibility and Customization

We understand the urgency and unique requirements of our clients. Our extensive inventory is poised to fulfill rush orders, demonstrating our commitment to responsive service. Furthermore, our seasoned R&D team is adept at developing bespoke filters tailored to meet the most exacting specifications, providing solutions that align perfectly with client needs.


KUPO Dichroic Filter

At KUPO Optics, the precision and consistency of our optical filters are a testament to our advanced coating chambers equipped with planetary revolution and Ion Assistant Deposition (IAD) technology. Adhering to MIL-M-13508C standards, our rigorous manufacturing process ensures each filter withstands environmental challenges, including abrasion, humidity, and flaking. Our commitment to quality is further solidified by our adherence to ISO 9001 standards, guaranteeing uniformity in all our products.
Our relentless pursuit of innovation is grounded in continuous research and development. We are dedicated to exploring new possibilities in optical solutions, striving to exceed expectations in both product quality and customer service. At KUPO Optics, your satisfaction is our priority. We welcome your inquiries and are committed to providing prompt and comprehensive responses to all your needs.


Automotive Headlights and Signaling

Advanced Vision: Optical Filters in Automotive Headlights and Signaling
Automotive headlights and signaling systems are crucial components of vehicle safety, ensuring both visibility and communication on the road. The role of these systems extends beyond mere illumination; they function as vital indicators of a driver's intentions, state of the vehicle, and help to perceive the road environment. With constant innovations in automotive technology, optical filters have become an integral part of these systems, enhancing performance and ensuring compliance with safety regulations. In-depth analysis and strategic implementation of diverse optical filter types can significantly improve the function of automotive lighting.
Optical filters serve to refine the light output in these applications, improving clarity, contrast, and color fidelity, as well as focusing and directing the light to where it's needed most. In signaling, filters can also help in distinguishing between various light signals by altering the color or intensity of light emitted from the vehicle’s lights.
Optical Filter Types and Their Applications in Automotive Headlights and Signaling
Dichroic Filters
Dichroic filters are designed to transmit light in a specific range of colors while reflecting others. In automotive headlights, these filters can be used to refine the color temperature of the light, resulting in lights that are closer to daylight and that can enhance visibility during night driving. Dichroic filters in signaling lights can ensure that the emitted light is of a precise color required by traffic regulations, helping in the clear distinction of turn signals, brake lights, and other indicator lights.
IR (Infrared) Filters
Infrared filters block visible light and allow infrared light to pass, which can be particularly useful in headlight systems equipped with night vision assistance. These filtering systems can enhance the contrast of living objects like animals or pedestrians in comparison to the inanimate surroundings, allowing drivers to detect and react to potential hazards more effectively. Additionally, IR filters can be used in LiDAR systems (Light Detection and Ranging) for advanced driver-assistance systems (ADAS) which require filtered light for accurate distance calculations and vehicle environment mapping.
UV (Ultraviolet) Filters
Ultraviolet filters block UV radiation from reaching the driver's eyes or from causing unwanted reflections off the road, which can create glare. Headlights and signaling systems equipped with UV filters can ensure that the light emitted does not degrade materials within the light fixtures themselves, which can reduce the lifespan and effectiveness of the headlights and signal lights.
Bandpass Filters 
Bandpass filters are designed to allow only a specific range of wavelengths to pass through, blocking out all others. This precise control is beneficial for sensors within ADAS that rely on accurate light detection to inform the vehicle of its surroundings. In conjunction with cameras or sensors, bandpass filters can screen out irrelevant wavelengths which might otherwise interfere with the system's ability to accurately analyze the driving environment.
Longpass and Shortpass Filters
These filters are designed to allow light above (longpass) or below (shortpass) a certain wavelength to pass through while blocking the opposite side of the spectrum. By utilizing these filters in headlight systems, manufacturers can tailor the spectral output to cut out unwanted short-wavelength blue light that can cause significant glare, especially in foggy conditions. For signaling, these filters ensure that light meets the specific color standards required for vehicle lights, such as stop lights and turn signals.
Polarizing Filters
Polarizing filters are unique in their ability to block certain polarizations of light while allowing others to pass. When used in automotive lighting systems, they can reduce glare from sunlight or headlights, thereby improving visibility for drivers. For example, polarizing filters can be integrated into the headlights to control the angle of the emitted light, reducing the glare perceived by oncoming drivers while maximizing the road illumination for the vehicle’s driver.
In conclusion, the application of optical filters in automotive headlights and signaling is an ever-evolving field, offering the promise of safer and more efficient driving experiences. Implementing these filters into automotive lighting systems enables manufacturers not only to comply with rigorous safety standards but to also push the boundaries of vehicle technology. As we drive into the future, the sophisticated manipulation of light through optical filters will continue to be a key ingredient in the quest for automotive innovation and driver safety.