Blog
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What is a deuterium lamp used for?
A deuterium lamp is an arc lamp filled with deuterium under low pressure, widely used in various analytical instruments, primarily emitting ultraviolet light in the 190–400 nm wavelength range, with certain models reaching as low as 160 nm. It operates through plasma dis...Read more -
What is the theory of astigmatism?
1 Introduction In the precise world of optical systems, astigmatism, a common type of aberration, has a profound impact on imaging quality. It not only affects image clarity but is also directly related to the overall performance and application scope of optical systems....Read more -
What is a halogen lamp?
A halogen lamp is a special type of gas-filled incandescent lamp, with the filling gas containing a portion of halogen elements or halides. Below is a detailed introduction to halogen lamps: 1. Definition and Principle ● Definition A halogen lamp is an incandescent lamp filled with halogen...Read more -
What is an optical aberration?
It primarily explores the deviation between actual optical imaging and ideal imaging, known as aberration. Below is a detailed explanation of aberration theory: Definition Aberration refers to the deviation of actual imaging from ideal imaging as determined by single-le...Read more -
What is the pulsed xenon lamp?
A pulsed xenon lamp is a light source that emits high-intensity flashes of light in a very short time, using stored electrical or chemical energy. Below is a detailed introduction to pulsed xenon lamps: 1. Definition and Principle A pulsed xenon lamp generates lig...Read more -
How to choose a spectrometer?
In today's scientific research, industrial production, and various technical fields, spectroscopic analysis plays an indispensable role as an important analytical tool. Fiber optic spectrometers, standing out in the field of spectroscopic analysis, have gained widespread...Read more -
What is the definition of quantum efficiency?
Quantum efficiency (QE) is a critical parameter used to describe the photoelectric conversion capability of a photodetector. It reflects the efficiency with which the system converts "input" (such as photons) into "output" (such as photoelectrons or current). Here is a d...Read more -
What is noise in spectrometer?
When a spectrometer measures spectra, it is affected by various types of noise. These noises can originate from a wide range of sources, including the instrument itself, the external environment, and the data acquisition and processing systems. Types of Noise ● Baseline ...Read more -
What is the difference between cooled and uncooled spectrometers?
The choice of a spectrometer detector is crucial in spectral analysis, as the type selected (cooled vs. uncooled) directly impacts the quality of spectral data, accuracy of analysis, and the overall cost and complexity of the system. Here's a comparative overview: 1. Wo...Read more -
What are the main performance indicators of fiber optic spectrometers?
The main performance indicators of a fiber optic spectrometer are the criteria for evaluating its performance. These indicators can be assessed from multiple aspects. Here are some key performance indicators: 1. Spectral Coverage Range The wavelength range that a spectro...Read more -
What are fiber attenuators used for?
1. Background Fiber optic attenuators emerged with the development of the optical communication industry and are a crucial type of passive fiber optic device. As the loss of optical components such as fiber cables and connectors continues to decrease, the actual attenuat...Read more -
What does a cosine corrector do?
1. Principle The principle of a cosine corrector is to correct image data using algorithms or physical methods to reduce the impact of the observation angle on reflectance, thereby improving the accuracy of the image data. Based on the relationship between the spectral r...Read more