平面N-BK7抛光片(N-BK7 product)

      N-BK7是一种硼硅酸盐光学冕玻璃，以其高均匀性、低缺陷和宽透射范围（380-2100 nm）成为透镜、棱镜等光学元件的首选材料

     N-BK7 is a borosilicate optical crown glass, which is the preferred material for optical components such as lenses and prisms due to its high uniformity, low defects, and wide transmission range (380-2100 nm)

上图为N-Bk7玻璃原材砖料(N-Bk7 glass raw material)

应用领域与优势(Application areas and advantages)：
‌光学元件制造‌：广泛用于平凸透镜、双凸透镜、平凹透镜、直角棱镜及柱面透镜，满足成像、激光聚焦和光束弯曲需求。‌

Optical component manufacturing:widely used in plano convex lenses, biconvex lenses, plano concave lenses, right angle prisms, and cylindrical lenses to meet imaging, laser focusing, and beam bending requirements. ‌‌
‌典型场景‌：实验室设备（如分光仪）、激光系统（1064 nm或近红外波段）及工业光学仪器，因其成本效益高且易于加工。‌

Typical scenario:Laboratory equipment such as spectrometers, laser systems (1064 nm or near-infrared band), and industrial optical instruments are cost-effective and easy to process. ‌
‌对比优势‌：作为最常见的硼硅酸盐冕玻璃，N-BK7在性能与价格间取得平衡，优于普通玻璃但逊于特种材料（如熔融石英JGS1）在极端环境下的表现。‌

Comparative advantage:As the most common borosilicate crown glass, N-BK7 achieves a balance between performance and price, which is superior to ordinary glass but inferior to the performance of special materials (such as fused silica JGS1) in extreme environments. ‌

‌透射范围‌：覆盖380 nm至2100 nm，适用于可见光及近红外光谱，确保在多数光学系统中高效传输光线。‌

Transmission range:Covering 380 nm to 2100 nm, suitable for visible and near-infrared spectra, ensuring efficient transmission of light in most optical systems. ‌
‌机械性能‌：高硬度与抗划伤性，均匀性优异，气泡和夹杂物含量低，适合精密制造。‌

Mechanical performance:High hardness and scratch resistance, excellent uniformity, low content of bubbles and inclusions, suitable for precision manufacturing

我司规格与技术指标（可根据客户要求定制,Can be customized according to customer requirements）：

• 材料(Material)	N-BK7
  规格尺寸(Specifications)	Dia5.0~Dia300 5*5~200*200
  面形精度(Surface Accuracy)	根据客户要求制作 (Made according to customer requirements)
  公差(Tolerance)	外形(shape):±0.05mm&+0/-0.10mm或其它(or other) 厚度(Thickness):±0.01mm或根据客户要求(or other)
  平行度(Parallelism)	根据客户要求制作(Made according to customer requirements)
  表面光洁度(Scratch Dig)	60/40，40/20，20/10，0/4 可根据客户要求制作(Made according to customer requirements)。

N-BK7玻璃资料表：