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.
 
 

 

Dichroic Filters

KUPO Optics proudly presents its exquisite range of Dichroic Filters, a marvel in the world of optical engineering. These filters, expertly coated with hard dielectric thin-films, stand as a testament to our commitment to precision and quality. Crafted to filter out unwanted regions of the visible spectrum, these dichroic filters allow only specific wavelengths to pass through, creating a palette of pure, intense, and true-to-life colors. This unique capability makes them an indispensable tool in applications that demand precise control over light and color.
 
Utilizing advanced Ion Assistant Deposition (IAD) and a state-of-the-art planetary-running coating machine, KUPO ensures that each thin-film layer is evenly and firmly attached to the glass substrates. This meticulous process guarantees unmatched consistency in optical specifications across different pieces and batches, ensuring that each filter performs to the highest standards. The high-density coating not only enhances the color vibrancy but also significantly boosts the filters’ resistance to UV, heat, and environmental degradation, far surpassing the durability of traditional gel filters.
 
From the grandeur of stage lighting to the precision of fluorescence microscopy, KUPO’s Dichroic Filters find their place in a diverse array of settings, including architectural lighting and advanced projection systems. With a spectrum of over 70 colors to choose from and the option for custom color development, these filters offer unparalleled flexibility to meet the specific needs of any project. Adhering to the rigorous MIL-M-13508C standards, KUPO Optics ensures that each filter is not just a component, but a reliable, enduring element in your optical solutions.
 
KUPO Dichroic/ Master of Wavelength Control

Features

● Perfect piece-to-piece, batch-to-batch consistency
● Pure, intense, true-to-life color
● Great resistance against UV and heat (Compared to gel)
● Great endurance to environmental degradation

Examples of Application

● Stage Lighting
● Architectural Lighting
● Projection System
● Fluorescence Microscopy

General Specification

● Spectral Tolerance: +/-3nmat T50%
● Available Substrate: See Glass Substrates under Products Page
● Humidity, Adhesion, and Abrasion: MIL-M-13508C

 


 

The Applications of Dichroic Filters 

 
Dichroic filters are specialized optical components that selectively transmit light of a small range of colors while reflecting other colors. Their precise color control, high durability, and thermal stability make them highly beneficial in a variety of applications spanning across industries such as machine vision, stage lighting, medical devices, microscopy, and astronomy. These filters play a pivotal role in enhancing performance, accuracy, and visual effects by manipulating light with exceptional precision.
 
Machine Vision
 
In the realm of machine vision, dichroic filters serve an essential role in improving the contrast and resolution of the images captured by cameras and sensors. Their ability to transmit specific wavelengths while blocking others makes them ideal for color sorting, inspection systems, and quality control processes.
 
Manufacturers use dichroic filters in conjunction with monochrome or color cameras to isolate the light reflecting off the objects being inspected. This allows for more accurate color detection and differentiation, crucial in automation and robotic applications where precision is paramount. For instance, in the food industry, these filters aid in separating items based on color or identifying contaminants, enhancing both sensitivity and specificity of the vision system.
 
Stage Lighting
 
Dichroic filters have revolutionized the stage lighting industry by providing lighting designers with an array of tools for color control. Unlike traditional gels, these filters can endure high heat and intensity levels emitted by powerful stage lights, making them ideal for theatrical and performance environments.
 
Their use in stage lighting involves altering the hue and temperature of the projected light without a significant loss of intensity. This is due to their efficient reflection of unneeded wavelengths while transmitting the desired color spectrum. The result is a vibrant and stable color output that can transform the ambiance and elevate the audience's experience. Furthermore, their longevity reduces the need for frequent replacements, offering a cost-effective solution for performance venues.
 
Medical Devices
 
In the medical sector, dichroic filters are employed in a range of diagnostic and therapeutic devices. Their precision in transmitting specific wavelengths is critical for various applications including endoscopy, ophthalmology, and in fluorescence-based assays, where they help in the identification of markers or tissues by selectively illuminating and filtering light.
 
For example, in fluorescence microscopy, dichroic filters are a key component of the imaging chain. They work alongside excitation filters and emission filters to ensure that only light from the fluorescence emission reaches the detection system, thereby enhancing image contrast and clarity for better diagnosis and research outcomes.
 
Microscopy
 
Dichroic filters find extensive applications in microscopy, particularly in the fields of fluorescence and multi-photon microscopy. By precisely separating incoming and emitted light, they are crucial in the observation of fluorescently labeled specimens.
 
They are integrated into microscope filter cubes where they serve as beam-splitters to reflect excitation light towards the specimen while allowing emitted fluorescence to pass through to the detector. Their high durability and ability to withstand intense light sources without degradation are essential for long-term research and analysis in life sciences and material studies.
 
Astronomy
 
Astronomy greatly benefits from the use of dichroic filters for observing celestial bodies. By filtering out unwanted wavelengths, astronomers can focus on specific spectral lines or bands, making it easier to study the composition, temperature, and motion of stars and galaxies.
 
Whether used in professional observatories or in amateur telescopes, dichroic filters assist in reducing the effects of light pollution and enhancing the contrast of observed objects against the night sky. For instance, in spectroscopy, they are vital for splitting starlight into its constituent colors for detailed analysis.
 
Conclusion
 
Dichroic filters, with their unique optical properties, have opened new possibilities in various industry sectors. Their precise light manipulation capabilities lead to advancements in technology, arts, and science, forging a path for innovative applications and enhanced experiences. From improving the accuracy of machine vision systems to enriching the spectacle of stage lighting, the diversity of dichroic filter applications underscores their importance as a modern-day optical solution.