18-layer optical coating test: How strong is the light transmittance and color reproduction?
18-layer optical coating test: How strong is the light transmittance and color reproduction?
Blog Article
In the field of optical equipment, coating technology is a key link to enhance performance. Among them, the 18-layer optical coating has attracted much attention. How does it perform in terms of enhancing light transmittance and color reproduction? Let's find out through actual measurement.
Measured light transmittance: Unobstructed light, bright field of vision
Experiment preparation
Select the Virtue 6-24X50 FFP sight equipped with 18 layers of optical coating. At the same time, prepare professional transmittance testing equipment, including high-precision light sources, light sensors, and data acquisition and analysis systems. To ensure the accuracy of the test, the experiment was conducted in a dark room environment free from light interference.
Testing process
Align the parallel light emitted by the light source with the objective lens of the sight. The light sensor is placed behind the eyepiece to receive the light passing through the sight. Through the data acquisition and analysis system, the light intensity data of different wavelengths of light (including visible light and some near-infrared light) before and after transmission are recorded. The average value was taken after multiple measurements to reduce the error.
Test result
Data shows that in the visible light band, the average light transmittance of this scope is as high as over 95%. Compared with ordinary optical coating, the light transmittance is significantly improved. For instance, at a wavelength of 550nm (the human eye is most sensitive to this wavelength of light), the light transmittance of a common coating might only be around 85%, while an 18-layer optical coating can increase it to approximately 97%. This means that more light can enter the scope, providing the user with a brighter and clearer field of vision. The advantage is particularly obvious in low-light conditions, such as hunting at dawn or dusk.
Color reproduction test: True colors, precise presentation
Experiment preparation
Build a test environment that simulates a real scene, and arrange objects of various colors, including standard color cards and natural objects with rich color gradations, such as flowers, green leaves, and colored fabrics. Observe with a firearm equipped with an 18-layer optical-coated sight and prepare professional color analysis instruments to compare the observed colors with the actual object colors.
Testing process
Observe the objects in the test environment through the scope from different distances and angles, and record the observed color perception. Meanwhile, a color analysis instrument is used to conduct spectral analysis on the actual color of the object and the color observed through the scope, comparing the differences between the two in terms of the three primary colors of red, green and blue, as well as color saturation and hue.
Test result
After actual observation and instrumental analysis, the 18-layer optical coating performed outstandingly in color reproduction. The color of the object observed through the scope is highly consistent with that of the actual object, with moderate color saturation and no obvious color cast phenomenon. In the observation of green plants, ordinary coating may make the green color yellowish or bluish. However, 18-layer optical coating can precisely restore the original fresh and emerald green color of the plants, allowing users to more accurately identify the color characteristics of the target object. In scenarios where it is necessary to judge the attributes of the target based on color, such as distinguishing the color of the prey's fur and identifying camouflage during hunting, It provides reliable visual support.
Through actual measurement, it can be found that the 18-layer optical coating demonstrates powerful performance in terms of light transmittance and color reproduction. High light transmittance brings a bright field of vision, and precise colors also enhance the accuracy of visual information, providing optical equipment users with a better visual experience in various scenarios. Whether it is hunting, observation or other related applications, it can play an important role. Report this page