Related Experiment Video
Updated: Jun 16, 2026

09:31
High-Speed Ultraviolet Photoacoustic Microscopy for Histological Imaging with Virtual-Staining assisted by Deep Learning
Published on: April 28, 2022
Performance characteristics of proximity focused ultraviolet image converters
Applied Optics
|February 4, 2010
Summary
Performance of Bendix BX 8025-4522 proximity focused image tubes for UV to visible light conversion was evaluated. Key characteristics like quantum efficiency, resolution, and distortion were assessed, showing suitability for light conversion applications.
Area of Science:
- Optoelectronics and Photonics
- Materials Science
Background:
- Proximity focused image tubes are crucial for converting ultraviolet (UV) to visible light.
- Understanding their performance characteristics is essential for optimizing imaging systems.
Purpose of the Study:
- To present the performance characteristics of Bendix type BX 8025-4522 proximity focused image tubes.
- To evaluate their suitability for UV to visible light conversion applications.
Main Methods:
- Characterization of quantum efficiency, resolution, background noise, and geometric distortion.
- Environmental testing to assess performance under various conditions.
- Utilized magnesium fluoride input windows, Cesium-Telluride (Cs-Te) photocathodes, and P-11 phosphors.
Main Results:
- Detailed performance data including quantum efficiency, resolution, background levels, and geometric distortion were obtained.
- Environmental test results demonstrated the operational stability and reliability of the image tubes.
Conclusions:
- The Bendix BX 8025-4522 image tubes exhibit promising performance for UV to visible light conversion.
- The combination of specific materials (MgF2, Cs-Te, P-11) contributes to their effective light conversion capabilities.
Related Concept Videos
Super-resolution Fluorescence Microscopy
Super-resolution fluorescence microscopy (SRFM) provides a better resolution than conventional fluorescence microscopy by reducing the point spread function (PSF). PSF is the light intensity distribution from a point that causes it to appear blurred. Due to PSF, each fluorescing point appears bigger than its actual size, and it is the PSF interference of nearby fluorophores that causes the blurred image. Various approaches to achieving higher resolution through SRFM have recently been developed.
Ultraviolet and Visible (UV–Vis) Spectroscopy: Overview
Ultraviolet–visible (UV–visible or UV–Vis) spectroscopy is an analytical technique that investigates the interaction between matter and UV–Vis light within the electromagnetic spectrum. This method is widely used for its versatility, simplicity, and relatively quick data acquisition, making it valuable for both qualitative and quantitative analysis. When UV–Vis radiation passes through a material, molecules absorb light depending on the energy required for electronic transitions. As a result...
UV–Vis Spectrometers
The absorbance of UV and visible (UV–visible) radiations is measured using a UV–visible spectrophotometer. Deuterium lamps, which emit UV radiation, and tungsten lamps, which produce radiation in the visible region, are used as light sources in UV–visible spectrophotometers. A monochromator or prism is used for diffraction grating, i.e., to split the incoming radiation into different wavelengths. A system of slits is used to focus the desired wavelength on the sample cell. Samples for...