Patent ID: 11892658
Assignee: CANON KABUSHIKI KAISHA
Field: Optics (Instruments)
Classification: CPC G | IPC G

Claim 14:
15. A method for manufacturing a cemented lens, the method comprising:
cementing a first optical element and a second optical element together with use of an adhesive to fabricate a lens including the first optical element and the second optical element cemented together with a resin layer;
forming a light shielding layer on an edge surface of the lens; and
forming a porous layer covering at least a part of the light shielding layer,
wherein a thickness of the porous layer on the light shielding layer is 0.4 μm or more and 10 μm or less and the porous layer is configured to allow moisture contained in the third optical element and the light shielding layer to be emitted into atmosphere.