A brief introduction to HP-G-LED dedicated fiber optic spectrometer

With the widespread application of LED products, the LED industry has experienced unprecedented development, and detection technology is constantly evolving and updating! Fiber optic spectroscopy is an analytical method based on detecting the wavelength and intensity of electromagnetic radiation emitted or absorbed by a substance. Its advantages lie in the modularity and flexibility of the system hardware.

The unique external dimensions of the LED light-emitting surface result in uneven light emission, so there is currently no unified standard to define how to measure LED. Therefore, using an integrating sphere and HP-G-LED dedicated fiber spectrometer to measure the total luminous flux of LED is the simplest, most accurate, and most convenient method.

HP-G-LED specific technical specifications

Wavelength range: 200-1000nm

Detector: 2048 unit linear array silicon CCD

Grating: LED detection dedicated grating

Slot width: 25 microns

Wavelength resolution: 0.5nm

Zui Short Sampling Time: 3.0 ms

Wavelength accuracy: ± 0.01nm

Frequency accuracy: ± 0.01THZ

Wave number accuracy: ± 0.01cm-1

Color temperature accuracy: ± 1

Color purity accuracy: ± 0.1%

Accuracy of three primary color values: ± 1

CIE1931 (x, y) accuracy: ± 0.0001

CIE1976 (u, v) accuracy: ± 0.0001

CIE1976 (u ', v') accuracy: ± 0.0001

CIE1976 (L * A * B) accuracy: ± 0.01

A/D conversion: 16 bits

Fiber optic interface: SMA905 standard fiber optic cable

Computer interface: USB1.1 or USB2.0

Power supply: 5V DC, powered by computer USB port, no need for independent power supply

Weight: 448g

Www.lc-gc.com is available for you.

Software Introduction

1Spectral measurement and analysis module functions:

A、 There are three collection modes, corresponding to different light source emission modes:

1. Continuous acquisition mode: In general measurement mode, spectral data is continuously acquired under the current exposure time parameter setting.

2. Single acquisition mode: Under the current exposure time and other parameter settings, only one set of spectral data is collected, and the acquisition is stopped immediately after completion.

3. Trigger acquisition mode: mainly used for measuring pulse spectra. Spectral data will only be updated and displayed when the light intensity value is greater than the set value, otherwise the collected spectral data will be discarded.

B、 The spectrum display has four modes to choose from, and the spectra are generated according to these four modes:

1. S Normal Mode: Display the collected CCD intensity signal.

2. Absorption rate mode: measures the absorption rate of an object at a specific wavelength.

3. T transmittance mode: refers to the transmittance of a specific wavelength of the object to be measured by the reference light source.

4. R reflectivity mode: refers to the transmittance of the reflected light intensity after the reference light source illuminates the object to be measured.

C、 Other commonly used functions:

Explosion time, average frequency, reference light, automatic deduction of background light, automatic or manual judgment of peak and valley, automatic or manual adjustment of coordinate range, addition of annotations, import and export of spectral data, spectrum processing, integration with office software, wavelength calibration, etc.

2、 The main functions of color measurement software are:

Integrating the spectrum yields the following parameters:

Color temperature Tc (K)

Main wavelength (nm)

Frequency (THZ)

Wave number (cm-1)

Color purity (%)

Three primary color values (R, G, B)

Color axis X, Y, Z

Chromatic coordinates: CIE1931 (x, y)

Chromatic diagram CIE1976 (u, v)

Equal chromaticity diagram CIE1976 (u ', v')

Color difference formula CIE1976 (L * A * B), etc