Patent ID: 11931849
Assignee: HUVITZ CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 4:
5. A method of blocking a lens, comprising:
in a state in which a leap block attachment part (21), which is mounted to be movable up and down on a guide (31) located inside a blocking device housing (41), is exposed below the blocking device housing (41), attaching a leap block (51) to the leap block attachment part (21) by an attractive force of magnets;
fixing the leap block (51) to a lower end of the blocking device housing (41) by moving the leap block attachment part (21) upward;
attaching the leap block (51) to the lens by positioning the lens under the blocking device housing (41) and lowering the blocking device housing (41);
detaching the leap block attachment part (21) from the fixed leap block (51) by further raising the leap block attachment part (21); and
obtaining a lens having the leap block (51) attached thereto, by raising the blocking device housing (41) to thereby separate the blocking device housing (41) and the leap block (51).