Introduction

• Introduction
• Features
• Specifications

Introduction

In 2007 Konica Minolta introduced the CS-2000, a polychromator-type*3 spectroradiometer capable of measuring ultra-low luminance of 0.003 cd/m². The CS-2000 has been well received in the FPD (flat panel display) industry and was awarded the 13th Advanced Display of the Year 2008 Grand Prize in the Display Testing Equipment Category.

* cd/m²: candela per square meter. cd (candela) is a unit of luminous intensity for light sources, and is derived from the Latin word for "candle".

The new product, CS-2000A, is a high-end spectroradiometer model attaining an additional decimal place of performance in measuring low luminosity to meet further demands from the market. The CS-2000A, the world’s best ultra-low luminosity analyzer, has the capability to ensure accurate measurements as low as 0.0005 cd/m² and enables contrast measurements of 1,000,000: 1*4, the contrast achieved by the newest display devices. This new product provides highly accurate measurement results essential for developing and manufacturing LEDs, organic EL displays, and various other light-emitting devices. In addition, the CS-2000A provides results for high-definition displays, responding to the ever-increasing demand for gradation with near-life texture.
In addition, the selectable measuring angle feature allows the user to select the optimal measuring angle according to the application. A close-up lens (optional accessory) enables measurements of even smaller areas.

Furthermore, the CS-2000A provides measurements that correspond to the visual characteristics of a human in low luminosities.

The peak of sensitivity for human vision is known to shift from green to blue in a dark environment; however, conventional measurement instruments are unable to accurately measure these conditions. The new product "Data Management Software CS-S10w Professional", included as a standard accessory, enables highly accurate measurements responding to the scotopic*1 relative luminosity*2, expanding the scope of applications from product development and manufacturing sites to various research fields including environmental science, medical science, and psychology.

*1 There are two types of photoreceptor cells that govern human visual perception: Cone cells capable of recognizing colors, and rod cells that recognize brightness only. The darker the environment, the more actively the rod cells function. Scotopic vision refers to the state where only the rod cells are functioning. In this state, the peak of sensitivity shifts from green to blue; as a result, blue color is perceived more brightly. The state where cone cells are mainly functioning due to ample lighting is called photopic vision.

*2 Indicates the sensitivity to the brightness of light at a certain wavelength relative to the sensitivity to the brightness of light at the wavelength that human eyes are most sensitive to (555nm for photopic vision and 507nm for scotopic vision), which is set as 1.

*3 A polychromator is a structure in which light dispersed into its separate wavelengths by a diffraction grating (operating in the same way as a prism) is converged by a converging lens onto specific positions for each wavelength on an array-type light-receiving element (sensor). This structure enables high-speed measurements because all wavelengths of the light are measured simultaneously by multiple sensors.

*4 When measured with a peak luminance of 500 cd/m² at a measurement angle of 1°C

• Catalogue Download
• Flyer Download "10 reasons"
• Software Download
• Instruction Manual Download
• Where to buy
• Contact Form