エドモンド・オプティクス・ジャパン Official site

■Three types of coating options (no coat, AR for 3~12μm or 8~12μm) ■Low dispersion materials result in minimal chromatic aberration ■Ideal for infrared applications requiring durability ■DLC-coated germanium windows are also available *You can download the catalog from Edmund Optics Japan that features this product from the link below.

Germanium (Ge) has a transmission wavelength range in the infrared region of 2 to 14 μm. Due to its very high refractive index of around 4.0 in the aforementioned wavelength range, transmission loss due to surface reflection (Fresnel reflection) is also significant. Therefore, anti-reflective coatings are typically required. Edmund Optics' Ge windows utilize effective anti-reflective coatings that function well in the ranges of 3 to 12 μm or 8 to 12 μm. Uncoated windows are available for use as workpieces when custom coatings are applied. It should be noted that the transmission performance of Ge decreases with increasing ambient temperature. When temperatures approach around 100°C, the transmission performance begins to deteriorate significantly, so usage below 100°C is recommended. With a Vickers hardness of 780, it is ideal for use in environments where factors such as durability and toughness are important. For the product lineup, specifications, and sales prices of standard products, please refer to the relevant product pages on the official website of Edmund Optics Japan Co., Ltd. (accessible from the product homepage linked above). *You can download the catalog from Edmund Optics Japan that includes this product from the link below.

Edmund Optics (EO) is a leading company in optical components, imaging, and photonics technology. It supports markets worldwide, including R&D, electronics, semiconductors, pharmaceuticals, and biomedical fields. EO's products are used in a wide range of applications, from DNA analysis to retinal biometric authentication and high-speed FA applications. With the fusion of EO's latest manufacturing capabilities and global logistics network, it is recognized in the market as the No. 1 supplier of optical components available for stock sale. Japanese customers are served by the local subsidiary, Edmund Optics Japan, Inc.