Silicon lenses are optical components made from high-purity single-crystal silicon. They offer high light transmittance, a high refractive index, low dispersion, and excellent aberration correction. They offer excellent transmission performance across both the visible and infrared spectrums, making them suitable for a wide range of optical applications.

Optical silicon lens operating band

In the short-wave infrared region of 1.1μm - 3μm, silicon lenses can be used in optical systems that require balanced consideration of both near-infrared and short-wave infrared. The mid-wave infrared band of 3μm - 5μm is a critical frequency band for infrared radiation emitted by many thermal radiation sources, and silicon lenses are widely used in this band. The long-wave infrared band of 5μm - 8μm also has an effective transmission range for silicon lenses. In some infrared spectrometers, silicon lenses can focus and collimate infrared light in this band, enabling accurate spectral analysis of samples, studying the absorption and emission characteristics of substances in this band, and analyzing their composition and structure. The most prominent advantage of silicon lenses lies in their ability to effectively process infrared light (especially light in the 1.1μm to 12μm range), which makes them extremely important in infrared optics-related fields.