According to the properties of basic points of lens group and the varifocal principle of lens group,a varifocal optical system which has a fixed image space principal point has been designed.
根据透
点性质和透可变焦原理,设计定第二主点变焦光学系统。
According to the properties of basic points of lens group and the varifocal principle of lens group,a varifocal optical system which has a fixed image space principal point has been designed.
根据透点性质和透可变焦原理,设计定第二主点变焦光学系统。
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