Lens ink layer quality testing device

The utility model belongs to the technical field of quality detection of optical lens ink-coated lenses, and discloses a lens ink layer quality testing device which comprises a main sleeve, a space ring adjusting piece and a lens mechanism. The main sleeve is provided with an accommodating cavity; the space ring is fixedly arranged on the space ring adjusting piece, the space ring adjusting piece is arranged on the main sleeve in a position adjusting mode, and the space ring is located in the containing cavity; the lens is fixedly arranged on the lens mechanism, and the lens mechanism is elastically arranged in the containing cavity. During use, the position of the space ring in the accommodating cavity is adjusted through the space ring adjusting piece, so that the lens mechanism is in a natural state, the space ring can be attached to the lens, a tester controls the lens mechanism to enable the lens to be away from the space ring, and after the tester is separated from the lens mechanism, the lens mechanism