chanelink logo
CHANELINK
한국어

Improved spectrometer color filter array for software calibration without the need for laser

134
2024-05-28 16:04:55
번역 보기

Hackaday will launch cool projects that may stimulate others to expand and enhance it, and even move in a completely new direction. This is the way the most advanced technology continues to evolve.

 


This DIY spectrometer project is a great example of this spirit. It comes from Michael Prathofer, who was inspired by Les Wright's PySpectrometer, a simple device pieced together by a pocket spectrometer and PiCam. As we pointed out at the time, [Les] added many complex instruments to the software, but this does not mean there is no room for improvement.

Michael's goal is to make his spectrometer easier to build and improve the calibration process and overall accuracy. To help solve the former, he performed software calibration on the color filter array on his Fuji X-T2. The advantage of doing so is that it does not require high-power lasers and precision micro locators to ablate CFA, and avoids the possibility of damaging expensive cameras. For the latter, Michael delved into the theories behind spectroscopy and camera optics to develop a process that associates the intensity of light in the spectrum with a specific wavelength at that location. He also conducted some machine learning during this process and trained a network to optimize the response function.

Source: Laser Net

관련 추천

  • Researchers have developed a QCL DFB continuous laser for gas detection

    Alpes Laser was founded in 1998 in Nazhatel, Switzerland and was the first company to bring quantum cascade lasers to the market. It released its first continuous laser in 2001 and its first high gain laser in 2009, thus maintaining this priority position.In 2004, the first commercial laser was introduced.Principle: In a single mode laser, the grating is etched into the active region to force the ...

    2023-08-16
    번역 보기

  • China has successfully developed the world's first 193 nanometer compact solid-state laser

    The Chinese Academy of Sciences reduced the volume of the deep ultraviolet laser by 90% and achieved 193 nm vortex beam output for the first time. Professor Xuan Hongwen described "loading truck equipment into the car trunk". This technology enables a 30% reduction in the size of lithography features, breaking through the bottleneck of the 2-nanometer process. In the next three years, laser power ...

    03-24
    번역 보기

  • Implementation of 20W high-power fiber optic frequency comb by the Institute of Physics, Chinese Academy of Sciences

    High power optical frequency combs play a crucial role in nonlinear precision spectroscopy, extreme ultraviolet optical frequency comb generation, nuclear atomic clock research, and other fields. Fiber optic femtosecond lasers are the preferred solution for achieving high power optical frequency combs due to their simple structure, stable performance, and easy amplification.However, due to the una...

    2023-10-11
    번역 보기

  • Widely tunable terahertz laser enhances photo induced superconductivity in K3C60

    Researchers at the Max Planck Institute for Material Structure and Dynamics (MPSD) in Hamburg, Germany, have long been exploring the effect of using custom laser drivers to manipulate the properties of quantum materials to deviate from equilibrium states.One of the most eye-catching demonstrations of these physics is unconventional superconductors, where enhanced electron coherence and super trans...

    2023-10-13
    번역 보기

  • Progress made in the research and development of high-performance electrically pumped topology lasers by the Institute of Semiconductors, Chinese Academy of Sciences

    Topological laser (TL) is a laser device designed and manufactured using the principles of topological optics, which can produce a robust single-mode laser and is an ideal light source for future new optoelectronic integrated chips. Electrically pumped topology lasers have become a research hotspot due to their small size and ease of integration, but topology lasers based on electrical injection a...

    2024-06-06
    번역 보기