DTT-ALow magnification projector/Cable cross-section projector is a precision optical instrument that uses optical projection methods to enlarge the contour or surface shape of the measured object and project it onto a screen for force free measurement. It not only has the functions of a general optical projector, but also has a low magnification projection objective lens and a large field of view, which can measure larger parts. It is particularly suitable for observation and inspection of rubber, wires and cables, as well as quality control testing of various products in production workshops. The instrument has a reasonable design, compact structure, easy operation, and reliable performance. User feedback has been positive. This instrument has been designated as an essential instrument for the cable industry by the Shanghai Cable Research Institute of the Ministry of Mechanical and Electrical Engineering.

■ Specification parameters

■ Objective lens

■ Light source