If you want "as accurately as possible" then you need to look for NIST traceable spectrometers. Those are likely to be very expensive (on the order of $10000 USD), but they are as accurate as possible.MR v said:Thanks for reply , i have mineral glass red and blue, I need to produce more , for that I need to know transmission curve and wavelength as accurately as possible
Anything is "possible" and you would need to specify the permissible error for your purpose.MR v said:I need to know transmission curve and wavelength as accurately as possible
A transmission curve represents the amount of light that passes through a material at different wavelengths. For colored mineral glass, this curve is crucial because it reveals how the glass interacts with light, which affects its color and transparency. Understanding the transmission curve helps in applications such as optical filters, art, and architectural elements where precise control of light and color is needed.
To measure the transmission curve, you typically use a spectrophotometer. The process involves directing a beam of light through the glass sample and measuring the intensity of light that emerges on the other side at various wavelengths. The resulting data is plotted to create the transmission curve, showing how much light is transmitted at each wavelength.
The wavelengths analyzed usually range from the ultraviolet (UV) through the visible spectrum and into the near-infrared (NIR), typically from about 200 nm to 2500 nm. This range covers the entire spectrum of light that the human eye can see, as well as some wavelengths beyond visible light that may be relevant for specific applications.
Several factors can influence the transmission curve, including the thickness of the glass, the type and concentration of colorants or impurities within the glass, and the presence of any coatings or treatments on the glass surface. Environmental factors such as temperature and humidity can also have minor effects.
Knowing the transmission curve is essential for practical applications because it helps in designing and selecting the appropriate glass for specific uses. For example, in architectural design, the transmission curve can determine how much natural light enters a building and its color quality. In optical applications, it ensures that the glass performs correctly in devices like cameras, telescopes, and eyeglasses.