HAAS-2000 High accuary array spectrometer

Introduction 

The Leading Speed Spectroradiometer
US Patent Granted
National High-Tech Program (863 program) Research Achievement, and Recognized as the Independent Innovation Product and National Key & New Product.
As the millisecond measurement speed, HAAS-2000 can be used for not only steady state (DC) measurement, but also the transient (pulses) measurement for LEDs.

Technical parameters

1. Specifications of different models of HAAS-2000:

2. Overview of HAAS-2000:

Generally, the high-accuracy, high-sensitivity and high-speed spectroradiometers in the world employ high quality gratings and scientific-grade array detectors. And very few manufacturers in the world can supply these high-end commercial array detectors and gratings. However, even applying these top grade array detectors and gratings, there are still many problems in system optical matching.
EVERFINE has abundant experience in developing high-accuracy & high-speed spectroradiometer. She improves the design of the array detectors and gratings to make the optical matching more perfect, so that the system can obtain purer spectrum and better linearity.
Besides, with the special stray light controlling technology, dynamic range widening technology, precise electronic array detector driving technology and complex variable matrix software technology, and by adopting the patent Band pass-filter Wheel Correcting Technique (BWCT),Spectrometer & Broadband-radiometer/photometer Combined Technique (SBCT), and modified NIST stray light correction technology, the spectroradiometer developed by EVERFINE can realize ultra low stray light of 5.00E-05 (under illuminant A) and super photometry linearity of 0.3% in overall dynamic range. Its key specifications are leading in the world.

3. The State of the Art Performance of HAAS-2000:

1) Low stray light
The optical matching of the high quality grating and scientific-grade array detectors is very well after improved by EVERFINE, and by applying BWCT and the modified NIST stray light correction technology, the stray light level of HAAS-2000 can be less than one tenth of the former high-speed & high-accuracy spectroradiometers.

2) Wide linear dynamic range
The improved high sensitivity scientific-grade array detectors have wide dynamic range as comparing with the general ones. And after optical matching improvement, the system has much wider dynamic range. Besides, the SBCT technology largely enhances the linear dynamic range of HAAS-2000 further more.

3) High speed
HAAS-2000 can be used for not only the steady state but also transient measurement of light sources. In the scope of the instrument sensitivity, HAAS-2000 can measure light pulse as short as less than micro-second through its synchronizing triggering function.
The array detectors of HAAS-2000 can measure the entire spectrum simultaneously and the total measurement time can be several milliseconds.

4) High accuracy
HAAS-2000 is designed to meet sophisticated light measurement requirements. The commercial high end array detectors with TE cooler, and the precise diffraction grating are improved to match each other perfect, and the system also features detailed designed optical system and electrical circuit as well as several patented technologies. It has low noise, high resolution, high sensitivity, low stray light and wide dynamic range.

5) High repeatability and stability
There is no mechanical scanning mechanism inside the instrument, and the temperature, changing which is the only possible influence factor is controlled at±0.05°C by the TE-cooling. The repeatability and stability is superbly high.

6) Compact
HAAS-2000 has extremely robust and compact design due to elimination of moving parts, and as an added benefit, there is no mechanical abrasion so that ensures long life and high stability. This compact design makes it an ideal instrument for applications where portability is needed.

7) NIST and NIM traceable
Directly calibrated by standard traceable to NIM (China) and NIST (USA) .

8) Fiber optic input
Equipped with suitable fiber optic adapter and related accessories, HAAS-2000 has flexible measurement configurations. This flexibility gives it the capability to carry out applications in quality control, production testing, and in lab settings.

9) Multi accessories available
Comprehensive accessories & adapters facilitate the many uses of the HAAS-2000. The applications include the spectral, photometric, colorimetric measurement of general light sources, LEDs & LED products, displays, as well as diffuse and specular transmission/ reflection measurements. And almost all of the accessories & adapters are designed and manufactured by EVERFINE, there is no problems about incompatible.

10) High sensitivity HAAS-2000
The improved precise concave grating and HAMAMATSU TE-cooled back-thinned array detector give the instrument super high sensitivity. The key component array detector and its advantagments will be introduce in the following paragraph.

11) The key component:  array detector

The scientific-grade high-sensitivity array detector used in HAAS-2000 cost near 100 times as the general ones. The array detector have such features that are superior to general ones:

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