By clicking “Accept All Cookies”, you agree to the storing of cookies on your device to analyze site usage and provide useful information about products and services.
Information may be obtained or stored in your browser by cookies when you access the Website. This information is related to the user, the user settings or device. It is primarily used to ensure the site functions as expected by the user. We respect your right to privacy. Therefore, you can select to not allow some types of cookie. Please click on the different category headings to check the details and then change our default settings.
Strictly Necessary Cookies are cookies that are essential for this site to function properly. Strictly Necessary Cookies do not store information that can identify individuals. Strictly Necessary Cookies are used to view this site. Therefore, you cannot refuse the use of Strictly Necessary Cookies from these cookie settings. However, you can refuse the use of Strictly Necessary Cookies from the settings of your browser at any time. Please note that parts of the site may not function if you refuse the use of Strictly Necessary Cookies.
This site uses the following Strictly Necessary Cookies.
Cookie name: gdprCookieEn
Purpose:To control the display for the confirmation of cookies on this site
Term of validity:1 year
Cookie name: optGA
Purpose:To opt out/opt in of (disable/enable) Google Analytics
Term of validity:1 year
Cookie name: optPardot
Purpose:To opt out/opt in of (disable/enable) Pardot
We have been expanding business areas to the light-controlled business that also targets infrared rays to ultraviolet rays and even X-rays in addition to visible light in our Polatechno business. We now manufacture and sell polarizers for liquid crystal displays, retardation films, polarizer for projectors, components for X-ray analyzers and other precision processed products. We are aiming to contribute to society to meet the changing needs of the market and customers speedily and accurately.
Nippon Kayaku have realized unique dye-stuff polarizer with high durable and excellent optical properties by development of various dichroic dyes.
They have high durability under severe conditions such as high temperature and high luminance light. Therefore, they are suitable for automotive and outdoor applications.
We also manufacture iodine-type polarizer with excellent optical characteristics.
Dye-type polarizer
Iodine-type polarizer
Bare polarizer for sunglasses
Circular and elliptical polarizer
Functions of Polarizer
In general, light (natural light) has the property of waves that vibrate in random directions. A polarizer is deemed as a kind of filter that has the function to pass the light that vibrates in a specific direction, not light that vibrates in random directions.
As shown in the figure as follows, suppose that a polarizer is a fine filter that has lattices arranged in one specific direction. Light that has parallel to light transmittance axis can pass through the lattices, but light in another direction (light absorption axis) doesn't pass through. Thus, light can be set to one direction by passing through the filter (polarizer).
There are three important optical properties in polarizer: transmittance, polarization efficiency and hue. The theoretical limit value of polarization efficiency in polarizer is 100% at 50% transmittance. By realizing the performance of the polarizer closer to the theoretical limit value, the polarizer achieves high performance display such as LCDs with high brightness and high contrast ratio.
Structure of Polarizer
Polarizer is made by dyeing a film, usually polyvinyl alcohol (PVA), with a dichroic dye, and then stretching the film to orient the dichroic dye within the film.
Polarizer is a film with polarizing properties in which dichroic dyes are oriented and absorb light vibrating in the direction, allowing another direction light in a certain vibration direction to pass through.
In general, in order to improve mechanical properties, polarizer is supported by films such as TAC films and additional protective films.
Various fuctions are added on polarizer. In addition to polarizing properties, polarizer is required to have functions such as anti-reflection, anti-scratch and suppression of light leakage under high temperature. Additionally, some types of LCD, touch panel and OLED require polarizer combined with retarders.
We will provide with polarizers that meet customer's requirements.
Inorganic Polarizers ProFlux™
Overview
To maintain bright and clear image display of LCD projectors, our high durable polarizers are essential in order to perform and maintain superior functions for many hours under high temperature conditions. The inorganic polarizer, ProFlux™, fully meets the demands for severe durability that are increasing year by year.
Made by forming an aluminum film on a glass wafer with fine slits, the ProFlux™ provides required polarizer performance. This gives ProFlux™ the durability and light fastness far exceeding those of organic polarizers.
Not only can it polarize visible light but also infrared and ultraviolet light. By having excellent characteristics, its applications are expanding to various industry device for medical device, biometrics, light exposure device, inspection, etc.
ProFlux™ wafers
SEM pictures of ProFlux™ inorganic polarizer
ProFlux™ inorganic polarizer is available with two types, reflective type (left) and absorption type (right) according to applications.
Optical Characteristics of ProFlux™ in infrared and ultraviolet region
Our ProFlux™ shows polarizer functions even in infrared and ultraviolet region.
horizontal scrolling）
