| 摘要 |
PURPOSE:To improve the designing efficiency of a lens system by calculating and editing the new lens system block data after adding it to the designated position of a desired basic lens system or exchanging said block data with a designated lens member. CONSTITUTION:The desired basic lens system block data is read out a lens system block data file stored in an auxiliary memory 5 and then is displayed on a CRT 7. Then the information on addition, deletion, exchange, etc., of lens members are supplied from a keyboard 1. In the case of the addition and the exchange, the lens system block data to be added and exchanged is read out of the data file. Thus a lens system block diagram is displayed together with the basic lens system block diagram displayed on the CRT 7. The processes for addition, deletion, exchange, etc., are confirmed and carried out through the keyboard 1. An addition/deletion arithmetic means 3 calculates and edits the new lens system block data based on the input information and displays a new lens system block diagram on the CRT 7 via a screen control means 6.
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