The BGR-25.4 Solid Glass Retroreflector is sometimes called a corner cube because the reflecting surfaces are three mutually perpendicular faces, like the corner of a cube. Light entering this 1 inch (25.4 mm) retroreflector with 19.0 mm height is reflected back 180°, and parallel to the original beam, regardless of its orientation to the beam. This makes retroreflectors valuable for applications requiring an exact 180° reflection without having to precisely orient the prism, reflected images are both inverted and reversed. The three reflective surfaces are uncoated, relying on total internal reflection (TIR), which gives them limitations at severe angles of incidence. They also must be kept clean for TIR to work properly. Upon request, the reflecting surfaces can be custom coated with protected aluminum on a lot-charge basis to avoid TIR failure.

• 反射光束偏转角度

  180° ±2 arc sec

• 直径

  25.4 mm

• 高度

  19.0 mm

• 材料

  Grade A N-BK7

• 表面质量

  40-20 scratch-dig

• 表面平面度

  ≤λ/4 at 632.8 nm over the clear aperture

• 通光孔径

  >85% of central face

• 尺寸公差

  +0/-0.15 mm

• 倒角

  0.1 mm face width

• 倒角公差

  45° ±15°

• 清洁

  See How to Clean Optics

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BGR-25.4固体玻璃反射镜有时被称为角立方体，因为反射面是三个相互垂直的面，就像一个立方体的角。光进入这个1英寸(25.4毫米)反光镜与19.0毫米高度是180°反射回来,并平行于原始光束,不管其光束的方向。这使得应用程序需要一个精确的反光镜价值180°反射而无需精确东方棱镜,反映图像是倒和逆转。三个反射面都没有涂层，依赖于全内反射(TIR)，这使得它们在严重的入射角受到限制。它们也必须保持干净，以便TIR正常工作。根据要求，反射表面可以定制涂上保护铝在批量充电的基础上，以避免TIR失效。