Slit-type blind direction switching device and method according to amount of sunshine

摘要

The present invention relates to a slit type blind direction switching apparatus and method in accordance with the amount of sunshine. In the conventional vertical blind, a user changes the installation angle of the slit according to the amount of sunshine that changes from time to time as the sun position changes, And the amount of sunshine must be adjusted by moving the slit to the left or right.;SUMMARY OF THE INVENTION [0006] The present invention has been made in order to solve such drawbacks, and it is an object of the present invention to adjust the amount of sunshine by rotating the slit to a position where the amount of sunshine close to the desired amount of sunshine detected during every rotation of the slit is detected, , The amount of sunlight irradiated to the indoor space can be kept constant.