Photolithography Patterned Optics
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Custom patterned optics Reynard Corporation announces custom photolithography services to manufacture patterned optics. Our contact exposing technique can achieve geometries as small as 5 microns utilizing a variety of thin film coating materials. Metallic or dielectric materials are selected based on the application’s transparent, reflective, and/or conductive opto-electrical requirements. Patterns can be applied to most substrate materials, including plastic sheeting. Photolithography patterned optics are utilized in diverse markets and in numerous applications, such as the following: Elimination of Electro-magnetic Interference (EMI) for sensitive electro-optical systems – In this case, the coating material is a conductive metal. The size and spacing are designed for maximum protection at a specified frequency band, while providing high transmission in the visible range. This design approach is utilized in the manufacturing of high-performance aircraft windows. Heated windows to reduce or eliminate fogging in multi-atmospheric systems – The conductive patterns are used as heating grids that are connected to bus bars on two sides of the substrate surface. These windows will heat up when exposed to low-voltage, highcurrent sources. This design approach is utilized in high-altitude anti-tank missile windows, as well as in the tip of endoscopes for the medical market. Wideband beamsplitters that operate from UV to Far IR – An evenly distributed pattern is made of many small transmission holes or blocking dots to split the energy of the radiating source. An even split of energy is achieved when the density of the transmitted region matches the density of the blocked region. The split in energy can be changed by changing the ratio of the transmission region to the density of the blocking region. Other applications include: Encoder disks, LCD displays, bar codes, reticles, transducers, and precision reference targets. Substrates to 18” diameter can currently be accomm