Delta Optical Thin Film Launches Innovations At Photonics West

At Delta Optical Thin Film, we continuously strive to deliver superior filter performance by pushing the boundaries of our technology. Below are examples of several filters we are excited to launch at Photonics West 2025 in San Francisco. If you’re attending the event, we invite you to visit our experts, Søren and Oliver, at booth 3321 to learn more about these innovations.

Dichroic beamsplitter with very steep edge

Thanks to its extremely steep transition between the reflection and transmission bands, this new dichroic filter allows you to either combine two light sources with a very small wavelength difference or work with fluorophores that have minimal wavelength separation between their excitation and emission bands.

Improved Linear Variable Edge Filter

At Delta Optical Thin Film, we have been at the forefront of developing and manufacturing Linear Variable Filters for decades. Our commitment to innovation drives us to continuously enhance the capabilities of our filters. Recently, we achieved a significant improvement in one of our Linear Variable Short Wave Pass filters, reducing passband ripple for better performance.

Fluorescence filter with very deep blocking

Our new fluorescence filters feature best-in-class out-of-band blocking. These filters deliver exceptional performance, minimizing background interference and cross-talk enabling our customers to build even better products.