Optics and thin film coating products

HHV standard optical products include bandpass filters, laser mirrors, AR films and beam-splitters, while our special coating products include UV reflectors, special optical filters, and hard coatings for tribological testing. HHV has a complete optical films lab and production facility where we can tailor product to your exact requirements.

Infrared Coatings

Infrared Coatings

Anti-reflection coatings on Germanium

Imaging the objects that are beyond the visible region is of the interest in both terrestrial and astronomical applications. Imaging an object in infrared will reveal its physical characteristics and heat signature. IR imaging can be broadly divided as active IR imaging and passive IR imaging. Both active and passive imaging s..

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Laser Mirrors

Laser Mirrors

Laser mirrors

Laser Mirrors are the high reflection coatings designed for the use of laser reflection. They are designed for either single line, multi line or broadband type sources. The hard, durable dielectric multilayer coating ensures the high reflection, durability and damage threshold. Laser mirror coatings are useful as cavity mirrors as well as beam steering optics.

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Narrow band interference filters

Narrow band interference filters

Narrow band Interference Filters & optical filters to meet the most demanding requirements of customers.

 Narrowband interference filters are used to transmit a desired wavelength interval while simultaneously attenuating   all other wavelengths in the range of   UV (200nm) to IR(1100nm).  They find application in a host of fields such as clinical chemistry, environmental te..

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Operating theatre reflectors

Operating theatre reflectors

The lighting environment in an operation theater should be such that there is brightness and clarity without causing needless heating or eye fatigue. The contrast between the lighted area and the surrounding should not cause stress to the surgeon\'s eye.  It should provide suitable color rendition so as to make it easy for the surgeon to see the finest nuances of color in the tissues.

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Tribological Coating

Tribological Coating

Tribological Coating

In recent times, the silicon dioxide (silica) coating has been found variety of applications ranging from gas diffusion barrier coatings to tribological coatings. In this application, silica coating along with Cr has been developed for measuring the film thickness of lubricants optically. And the product is a fine polished glass disc of 10 mm thick and 100 mm dia. coated firstly wi..

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