Multi-layer coating-film new technology of optical part
A technology of optical parts and new technology, which is applied in the direction of optical components, optics, instruments, etc., can solve the problems of high cost and unsatisfactory anti-reflection effect, and achieve the effect of saving cost and improving anti-reflection effect
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Embodiment 1
[0008] A new multi-layer coating process for optical parts, comprising a vacuuming process and a coating process, characterized in that: the coating process of the coating process is six layers, the first layer is H 4 , the second layer is AL 2 o 3 , the third layer is H 4 , the fourth layer is AL 2 o 3 , the fifth layer is H 4 , the sixth layer is MgF 2 .
[0009] The index of the anti-reflection film of the optical lens made by the new process of multi-layer coating of optical parts of the present invention is: 400-700nm R=0.3-0.35%; 700-750nm R≤1.0%
Embodiment 2
[0011] A new multilayer coating process for optical parts as in Embodiment 1, the difference lies in that the initial values of the film thickness of each coating layer are: 0.5, 0.5, 1, 0.5, 0.5, 1 respectively.
Embodiment 3
[0013] A new multi-layer coating process for optical parts with the first embodiment, the difference is that the initial vacuum degree of the vacuuming process is 4.5*10 -4 Pa-7.0*10 -4 Pa (at 4.5*10 -4 Pa and 7.0*10 -4 Any initial vacuum between Pa will do). Normally, it is 3.0*10 -3 Pa.
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