美国Newport 标准带通滤光片

我们的长紫外、可见光和近红外带通滤光片使用划线和层压结构制造。该方法可在滤光片周围提供一层玻璃纤维环氧树脂密封，以防止水汽进入薄膜滤光元件。这个过程旨在提供zuiyou的光谱性能，同时提供能够承受多变气候条件的坚固结构。

• 带外阻塞小于 0.01％ (10-4)

• 可用的中心波长范围为 310 nm 到 900 nm

• 优良的温度稳定性

• 直径为 25.4 mm，对边宽度为 50.8 mm

• 在恶劣的环境条件下具有卓越的使用寿命

产品规格：

特征：

Scribed and Laminated Construction

Scribed and laminated soft coating construction is a commonly used construction for bandpass and edge filters. Optical filter components are coated onto separate substrate plates. These plates are then scribed to remove the film symmetrically around the required specified active film areas of the optical filters to be produced from the plate. The scribed plates are subsequently laminated together with a moisture resistant epoxy. A glass-epoxy-glass seal is formed in the scribed areas forming the best possible barrier to moisture penetration. Filters are cut through the scribed area to their finished size using diamond cutting tools. Additional moisture barriers may be applied to the cut filters if necessary to achieve extended life requirements.

Bandpass Filter Transmission Curves

A bandpass filter is defined by the pass band region. The two wavelengths in the bandpass where the transmittance is equal to 50% of peak transmittance are called the half-power wavelengths. The bandwidth is the difference between the half-power wavelengths which is called the full width at half maximum (FWHM). A center wavelength is defined by calculating the average of the two half-power wavelengths. The band shape is usually defined as a multiple of the BW or FWHM, and it defines the rate of attenuation with respect to wavelength change along the slopes of the bandpass.  Please see the individual product page for the transmission curve.  

全不锈钢结构

Optical Filter Mounts

We offer a wide variety of optical filter mounts for securing and locating your optical filter.  Popular types include:

Edge Grip Clamp Filter Mounts

Spring Clamp Filter Holders

Indexed Optical Filter Wheels

Stackable Optical Filter Mounts

Flip-up Optical Filter Mounts 

全不锈钢结构