HHV has set up an optics fabrication laboratory at its existing unit at Dabaspet, Bangalore. The aim is to offer a diverse portfolio of  capabilities for fabrication of high  precision optical components in the  visible and Infrared range.

HHV is already a leader in the supply of thin film optical coatings. With the addition of this optics fabrication laboratory, HHV is now geared up to provide end to end solutions for complex optical component requirements, especially for space and  defence applications.

HHV through this laboratory, will now manufacture different sizes of lenses, flats, prisms and  domes for various applications including night vision optics, Binoculars, Periscopes,  Astronomical and Telescopic mirrors etc. Extensive experience exists in-house, in working with  materials like Fused Silica, Zerodur, optical glass types imported from Schott, Germany and successfully handling Silicon, Germanium and Zinc Sulphide materials.

The laboratory consists of various machines for curve generation, centering, edging,  trepanning, slitting, polishing and grinding for spherical optics and prisms. Substrates up to  200mm diameter can be processed. It is proposed to add single point diamond turning, shortly  to expand its capabilities to aspheric fabrication and address diverse applications.

HHV has a comprehensive understanding of various MIL specs, ISO specifications and customer  issued quality documents. The test lab houses sophisticated instruments to measure surface  roughness, surface figure using Zygo interferometer, angles and parallelism by Nikon  Autocollimator. Experienced Optical Engineering team can identify the most challenging features and devise unique manufacturing solutions.

Optical coatings

HHV specializes in supplying Thin film coatings for the UV, Visible and Infra red spectral regions.  Vacuum coating chambers are housed in clean rooms and can accommodate different substrate  sizes and shapes. State of the art technology is used to produce optical coatings with excellent  spectral performance, Laser damage threshold and environmental durability.

Advanced thin film design software and theoretical evaluation techniques are used to develop  optimal coatings. Coating chamber parameters are rigorously controlled to ensure process  repeatability. HHV has a unique advantage of building its own vacuum coating chambers in  house with the latest features incorporating automatic process control.