2026-10-15
1. Spectral analysis (the core application of diffraction gratings)
Grating, as a spectral element, is used in spectrometers, monochromators, and spectrographs
-Chemistry... [
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2026-10-08
Base classification
1. Glass substrate (K9/BK7, fused silica): laboratory low-power metal mirror mainstream, well polished and cheap; Poor thermal conductivity, high ... [
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2026-09-16
The service life bottleneck of optical filters generally lies not in the glass substrate, but in the optical coating. Lifespan is divided into storage life (shelf life) and opera... [
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2026-09-08
An equilateral prism is a dispersive prism with a cross-section of an equilateral triangle, all three vertices are 60 °, two working surfaces are refractive surfaces, and th... [
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2026-08-31
The traditional convex lens retains only the surface curvature that functions as a refractive element, removes the solid material in the middle that does not participate in re... [
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2026-08-17
Core Spectral Transmission / Reflection Parameters
Center Wavelength (CWL)
For band-pass filters, the center position of the transmission band, measured in nanomete... [
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2026-08-10
The concave grating is a core reflective optical diffraction element that combines spectral dispersion and focusing imaging functions. Unlike traditional planar gratings that ... [
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2026-08-04
Core essence: Both have one-dimensional optical power (focusing/diverging only in one direction) and no refractive power in the other direction; But the surface form, light ... [
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2026-07-16
BK7 Optical Windows panel is the most versatile and cost-effective planar protection window for visible/near-infrared light. Its function is to isolate the internal and ext... [
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2026-07-08
The optical dome is a monolithic light-transmitting shell with concentric inner and outer spherical surfaces and uniform wall thickness, available in two main forms: hem... [
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