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.
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..
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.
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..
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.
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..