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Lehmann Roof Prism - China

price: 60.00 Dollar US$

A roof prism (also called a Dach prism or Dachkanten prism, from the German: "Dachkante", lit. roof edge) is a reflective optical prism containing a section where two faces meet at a 90° angle. These two 90° faces resemble the roof of a building, giving this prism type its name. Reflection from the two 90° faces returns an image that is flipped laterally across the axis where the faces meet.

Characteristic for a roof prism is that the beam is split in half, with one half of the beam hitting first one face then the other face, while it is invert for the other half of the beam. Therefore, a roof prism can be used only with some distance to focal planes, or the "edge" of the roof would introduce slight distortions. Furthermore, the angle between the two faces has to be very close to 90°, or image quality would be degraded.


Company Contact:


  • Phone: 0086-769-86080086

  • Address: No.2 Xianglong Rd,Xincheng Dist,Shilong Town, Dongguan, Guangdong, China

  • Email: Email


Published date: August 23, 2016 -

  • Business Description: Taiyo Optics Co. Ltd. is a professional supplier of prism. It has been focusing on processing and manufacturing optical prism for more than 20 years. Taiyo has established its first factory in 1993 at China, Nanyang. The second factory in Dongguan, China was established in 2004. The products include optical prism, cylindrical lens, and other planar optical components.

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