HHV Advanced Technologies - Optics Fabrication

HHV Advanced Technology [HHVAT] offers precision Optics Fabrication and coating. Equipped with state-of-art technology and machinery to fabricate high precision optical components in the visible and infrared spectrum. The facility is delivering complex optical component requirements for space and defence applications using high precision machines. HHVAT has extensive knowledge on handling materials such as Quartz, Fused Silica, Zerodur, BK-7, Crown and flint glasses for UV-Visible spectrum and silicon, Germanium, Zinc Sulphide for the Infra-Red spectrum. HHVAT is equipped with state-of-the-art machines for slitting, trepanning, curve generation, grinding, polishing, centering and edging for spherical and aspherical optics. Finished products go through rigorous quality checks with equipment such as Zygo interferometers with transmission spheres to measure surface figures to up to 1/10th of lambda, Davidson autocollimators to measure surface angles and parallelism to an accuracy of one arc second, and Trioptics spherometers to measure the radius of curvature of various components to an accuracy of one micron. HHVAT manufactures over 100,000 optical components every year from periscope prisms to optical flats.

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HHVAT - Hybrid Micro Circuits for Space Applications

In 2025, HHV Advanced Technologies was awarded a ‘Certification of Qualification’ by the Space Application Center, ISRO for 4 Layer Thin Film Metallized substrates. Circuits are designed on these multi-layered metallized substrates and used in ISROs Space and Satellite program. This development led to HHV receiving the prestigious National Research and Development award for 2018 by the Honorable President of India.
As a part of ISROs technology transfer program and as a forward integration of this technology, HHVAT has been selected to produce the entire Thin Film Metallized Circuit for ISRO’s 40-micron accuracy line. HHVAT has begun producing these circuits in its new technology production line known as ‘Photo Lithography’. HHVAT has established a new Photo Lithography Lab (PLL) at its Dabaspet plant to develop TFMCs on alumina substrates that first need to be metallized in a vacuum chamber. Different circuits require different metallizations. HHVAT’s PLL currently produces 3 types of circuits with 2-4 layers of metallization for different frequencies. As part of the ‘Make in India’ initiative HHVAT has been identified and qualified as the TFMC producer for ISRO’s satellite program. Thin Film Metallized Circuits have multiple applications from satellites to defence to binoculars.

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ITO Thin Film Coatings – Engineered at HHV Advanced Technologies

At HHV Advanced Technologies, the Thin Films and Optics Division (TFOD) has developed specialized expertise in ITO deposition for advanced optical and electronic applications, where both optical transmission and controlled resistivity are essential.

Thin Film Coating

HHV Advanced Tech pioneers Thin Film Coating, defining excellence in optical and electronic applications. Experience precision and innovation like never before.

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