Metering equipment

CS-2000/CS-2000A Spectral Radiance Meter

Product description: Zhengyin Technology provides one-stop image quality testing solutions, suitable for multiple industries and product categories. Committed to helping customers deeply understand and test the performan
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Spectroradiometer CS-2000/CS-2000A

Spectroradiometer CS2000/CS2000A has high-precision spectral radiance curve / measurable brightness can be as large as 0.003cd/㎡
With the beginning of the era of high-definition television, in order to better restore bright, bright and high-resolution images, the development of some higher-quality display devices that support Full HD is also accelerating. At present, the most advanced technology can achieve a brightness level of 100,000:1 contrast ratio, and the picture will give you a more realistic feeling. Due to the need for an instrument that can measure extremely low brightness, there is a technical bottleneck in reproducing some "darker than black" images.
In addition, some other types of light-emitting elements are developing rapidly, such as organic electroluminescence (Organic EL), like traditional LCD and PDP displays, which require higher-precision spectral radiation curve analysis. CS-2000 is a spectroradiometer with the above measurement functions. Its extreme low brightness measurement has reached the world's top level, with a minimum of 0.003 cd/m2 and a maximum measurement contrast of 100,000:1.

Product description:

① The most suitable measurement angle can be selected to meet different measured objects

1° measuring angle is suitable for

Traditional measurement objects such as medium and large size displays.
· LCD, PDP or EL flat panel display
· LCD panel of mobile phone or digital camera
· Display panels of various aviation radars or instruments
· Outdoor large-screen display equipment

0.2° measuring angle is suitable for

Small area light sources such as LEDs
· Car audio system
· Car display panel
· Fluorescent lamps, backlight tubes and other light sources

0.1°measuring angle is suitable for

Very small light source or long-distance light source
· PDP or LCD pixels
· Cold cathode tube
· Car brake lights
· traffic light

△ Close-up lens used when measuring extremely small areas (optional accessory)

The instrument is used with the optional close-up lens, and the smallest area that can be measured is Φ0.1mm. It can measure not only display devices of conventional sizes, but also light sources with small areas.

② Measuring distance and measuring area

Measuring distance (unit: mm)		Measuring angle
Measuring distance (unit: mm)		1°	0.2°	0.1°
When using a close-up lens	55.0	φ1.00	φ0.20	φ0.10
When using a close-up lens	70.9	φ1.39	φ0.28	φ0.14
350		φ5.00	φ1.00	φ0.50
500		φ7.78	φ1.56	φ0.780
1,000		φ16.66	φ3.33	φ1.67
2,000		φ34.18	φ6.84	φ3.42

△ The measurement distance is calculated from the end of the metal part of the objective lens or close-up lens.

③ Repeatability comparison test

(Compared with Konica Minolta’s previous model CS-1000 when the target brightness is 0.1 cd/m2* The y-axis represents: assuming that the average value of the CS-2000 measurement is 1, the comparison of the CS-1000 measurement value number)

Luminance（Lv）
Chromaticity（x）
Chromaticity（y）

The instrument achieves better repeatability by fully eliminating mechanical and circuit noise in its design.

③ Measured brightness and measurement time (unit: second) Measurement object: standard light source A

Luminance（cd/㎡）	General mode	Fast mode
0.003	243	35
0.01	243	35
0.1	155	27
1	19	5
10	4	4
300	3.7	3.7

△ All times only represent close values.

④ When the low brightness is 0.003 cd/m2, the instrument can also maintain high-precision measurement

Konica Minolta fully combines advanced optical design technology with signal processing technology to provide a guarantee for the high accuracy of chromaticity and brightness measurement at an extremely low brightness of 0.003 cd/m2.
Low brightness measurement: starting from 0.003 cd/m2
Measurement accuracy: ±2% （Luminance）

⑤ It can ensure fast measurement even at low brightness

The unique design of the instrument fully eliminates mechanical and circuit noise, so that the CS-2000 can perform rapid and repeatable measurements even at low brightness.
Measuring time at 1 cd/m2: about 5 seconds (fast mode)
*Konica Minolta's previous model CS-1000: about 123 seconds

⑥ Low polarization error

The polarization error caused by the use of a reflective diffraction grating is reduced to only 2% (measurement angle: 1°). This guarantees the stability of the measurement data of display devices such as LCDs that use polarizers.

⑦ Only 5 nm half-wave width

The instrument has only a half-wave width of 5 nm, which meets the requirements for chromaticity measurement (JIS Z 8724-1997, CIE 122-1996), and ensures accurate measurement of chromaticity in the entire visible light wavelength range.

⑧ Practical design

The operating temperature range of the instrument is 5°C to 35°C, which is similar to the actual working environment, ensuring the reliability of the instrument operation.
The instrument only needs to warm up for 30 seconds after it is turned on for normal measurement. (Measurement angle: 1°; target brightness: 5 cd/m2 or more; at 23°C)

Even for light sources with periodic luminescence characteristics, stable measurement data can be obtained

-Internal synchronization measurement
Measure by inputting the synchronization frequency 2. External synchronization measurement
Measure through the external input vertical synchronization signal 3. Multi-integration mode measurement
Reduce the changes in the acquisition signal when the measurement is not synchronized or measure the light sources with irregular periods of luminescence characteristics

Simple operation panel and color LCD display make operation easier

The color LCD display and operation panel are set on the back of the instrument, and the simple button arrangement allows you to call the functions you want more intuitively.

Technical analysis

The core of CS-2000, the optical sensor, through precise analysis and design, eliminates the superimposed influence of the heat in its composition on the measurement data.