Bracket for holding lens and lens manufacturing method

Abstract

A holder for holding a lens and a lens manufacturing method which are excellent in workability without damaging the optical surface of the lens of the lens base material when mounting the lens base material. The bracket (1) for holding the lens is equipped with a lens holding unit (8), and the lens holding unit has: a lower holding member (10), which contacts the outer peripheral portion of the lens base material from below, and limits the lens base material at the lens holding position; The side rotation holding member (20) is rotatably constituted in such a way that it contacts the outer peripheral portion of the lens base material from one side in the horizontal direction, and the lens base material is limited in the lens holding position; The other side in the direction contacts the outer peripheral portion of the lens base material, and the lens base material is limited in the lens holding position; the force application member (22) can press the lateral rotation holding member toward the lens base material side. The side rotation holding member has a holding arm (20a) extending from its rotation center (C) to the lens holding position side and a weight balance portion (20b) extending upward from the holding arm, and the side rotation holding member has its center of gravity (G) It is located on the side of the weight balance part and rotates by gravity in the non-holding state of the lens base material.

Description

technical field [0001] The present invention relates to a lens holding holder and a lens manufacturing method, and more particularly, to a lens holding holder and a lens manufacturing method that hold a plurality of lens base materials in a substantially vertical upright state. Background technique [0002] Conventionally, for example, in the production of lenses for eyeglasses, when a film such as a hard coat film or an antireflection film is provided on the lens substrate, the lens for eyeglasses is often produced by a dipping method. The treatment of this dipping method is carried out as follows. The lens substrate is immersed in a coating liquid tank storing a coating liquid for film formation for a predetermined time, and after being immersed for a predetermined time, it is taken out from the coating liquid tank. material dry. Usually, in this process, a immersion process and a drying process are implemented in the state which held the several lens in the holder for on...

AI Technical Summary

Problems solved by technology

Moreover, in order not to damage the lens optical surface during the lens mounting operation, the mounting operation must be performed very carefully in order to prevent the lens base material L from accidentally contacting the holding arm. Therefore, it becomes a very difficult operation and is a major problem in lens manufacturing. question

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