EN
RayClouds Photoelectric Technology Co.,Ltd.
RayClouds Photoelectric Technology Co.,Ltd.

Near-field Distribution Measurement Method

Two-axis goniometer

The two-axis goniometer supports vertical angle of adding or decreasing 90 degrees’ inclination (from upward to downward) and horizontal rotation from left to right of adding or decreasing 90 degrees. The angular accuracy of the two rotating axes is 0.25 degrees.

The unique feature of mechanical design is the use of rectangular frames, which not only roughly defines the measurement plane, but also provides a more stable fixed point of light source. It can support a balanced light source which is up to 25 kg.

Some light sources may exceed the boundary of the frame, and the length of the lamp tube is 1.2m, which can also be measured. If need, the frame can be connected to the power supply of the light source which needs to be measured.

At the same time, its circuit is very simple, so it will not affect the rotation of the goniometer in the measurement process, which is NFMS-800 of the Radiant Zemax.

Imaging colorimeter

The imaging colorimeter used in the system must have sufficient spatial resolution and dynamic range to measure the details of the light source.

Because the light source is directly irradiated, ND filters may be used. The principle of choosing lens focal length is that the imaging colorimeter can capture all the details of the light source at a proper distance from the angle meter. Imaging colorimeter can measure chroma parameters, photometric parameters or radiometric parameters.

Measurement Control and Analysis Software

The control software controls the position of the angle meter, that is, the light source, relative to the imaging colorimeter, that is, the order of measurement. Its other function is to synchronize the imaging colorimeter with the goniometer.

In addition, the software can integrate all measurements into the near-field model of the light source, and at the same time, it calla out a separate measurement image.

Related News
  • Factors Influencing the Selection of Spectrophotometer

    Factors Influencing the Selection of Spectrophotometer

    December 11, 20201. Wavelength detection range and wavelength selection mode (manual search, automatic search, or scan)2. Light Beams. The beam types are single beam, dual beam, or quasi-twin beam. A single beam is ge...view
  • HOW HOT IS THE MINI LED BACKLIGHT

    HOW HOT IS THE MINI LED BACKLIGHT

    October 12, 2022Introduction:With the development of Mini LED backlight,the release of Mini LED backlight products has been accelerated since 2022,which not only has a certain improvement in quantity, but also more new p...view
  • What is Medium Size Optical Measurement System

    What is Medium Size Optical Measurement System

    July 11, 2019Medium size optical measurement system can analyze and measure the reflection and transmission characteristics of material surface in all directions. The measurable parameters include bidirectional tr...view
  • Introduction to Photometer

    Introduction to Photometer

    November 11, 2020A photometer is a kind of measuring instrument of light and color.Photometer meter is one of the necessary instruments in the laboratory, which has been widely used in various quantitative and qualita...view
  • Functions of LCD Luminance Meter

    Functions of LCD Luminance Meter

    July 11, 2019LCD luminance meter can measure the brightness of light source or object in the non-contact state by using a lens imaging principle and telescope optical system. LCD luminance meter is tested for brig...view
  • THE PANEL INDUSTRY WILL RECOVER AS EARLY AS NEXT YEAR, AND THE GROWTH OF VR, VEHICLE DISPLAY AND SO ON WAS STRONG

    THE PANEL INDUSTRY WILL RECOVER AS EARLY AS NEXT YEAR, AND THE GROWTH OF VR, VEHICLE DISPLAY AND SO ON WAS STRONG

    August 9, 2022Shanghai Securities News, China Securities Network News (Liu Yihe reporter Chen Qijue)Since the beginning of this year, under the influence of multiple factors, the mainstream panel price has fallen a...view


LATEST_NEWS



Contact