Vapor Deposition

Coating technology always on the cutting edge of current technology.

We provide vapor deposition products with high precision such as dichroic mirrors and fully reflecting mirrors for separating white light into BGR (blue, green, red) from the lamp source, and cross dichroic prisms for color systems for image processing of combined light from liquid crystal panels, and cold mirrors, UV/IR for lamp systems.

  • Coating technology always on the cutting edge of current technology.
  • Coating technology always on the cutting edge of current technology.

Optical unit used on liquid crystal projectors - structural view

Liquid crystal projectors - structural view

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Vapor Deposition

1. Cold Mirror for Plastic Lens

It has been difficult to apply cold mirror coating on plastics.
But it has become available by overcoming the difficulty.This cold mirror is designed for plastic lenses to reflect visible light and transmit near-IR.
Adherence and reliability of the coat are well secured.

Reliability test conditions

Thermal shock -40°C ~ 85°C 210cycles
Temperature and
moisture resistance
85°C 95% 96hrs
High temperature storage 90°C 94hrs

No coating coming off and no crack after reliability test !
* Our examination result

Near-IR Trancemittance/Visible Light Reflectance of Cold Mirror

* Please note: Substrate material shall be ZEONEX.

2. IR Cut Filter for Plastic Lens

It has been difficult to apply IR cut coat on plastics.
But it has became available by overcoming the difficulty.This filter coat is designed for plastic substrate to transmit visible light, and reflect near IR.
Adherence and reliability of the coat are well secured.

Reliability test conditions

Thermal shock -40°C ~ 85°C 200cycles
Temperature and
moisture resistance
85°C 80% 1000hrs

No coating coming off, no crack after reliability test !
* Our examination result

Trancemittance of IR Cut Filter

Example of deposition to lens
Example of deposition to lens
* ZEONEX E48R

Cost reducing can be expected by employing this coating instead of using conventional glass filter.

3. Highly Durable Mirror

Generally, aluminum has been chosen as a coating material for reflecting mirror.
The coating layer of aluminum is relatively durable, however, it has problems for using in severe condition; white turbidity or open void of coat layer (that allows light to go through the substrate) are caused when using in high temperature and high humidity. But we have overcome the problems.
By coating a combination of special metals and dielectric materials instead of aluminum, coat durability have substantially improved.

Reliability test conditions

Thermal shock -40°C ~ 85°C ≧ 100cycles
Temperature and
moisture resistance
85°C 95% ≧ 500hrs

No coating coming off, no reflectance degradation after reliability test !
* Our examination result

Highly Durable Mirror
* ZEONEX E48R

Best for operating in severe condition !

If you have any request, please inform us.
We'd like to offer optimum product upon your request.

* ZEONEX® is a registered trademark of ZEON corporation, Japan

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