Lens frame, lens assembly and image-taking apparatus
AssigneeFUJIFILM Corporation
InventorsIkuo Taki, Ryota Sasaki, Yuya Sakai, Yasunori Tanaka
Life of this patent
Estimating the term…
Abstract
A lens assembly made of porous ceramic is provided with concave sections into which an adhesive for fixing lenses inserted into a lens frame is injected. Each of the concave sections has an outward opening and a spacing wall provided between a hollow part of the lens frame and the opening. The adhesive injected into the concave sections passes through multiple pores in the lens frame made of porous ceramic, and reaches the periphery of each of the lenses, thereby fixing the lenses to an inner wall of the hollow part of the lens frame.
Claims6
A lens frame having a porous structure and a hollow part into which an optical member including a lens is inserted, the lens frame comprising:
- a concave section into which an adhesive for fixing the optical member inserted into the hollow part is injected, and which has an outward opening and a spacing wall provided between the opening and the hollow part.
A lens assembly comprising:
- an optical member including a lens;
- and
- a lens frame having a hollow part into which the optical member is inserted,
- wherein the lens frame has a porous structure and a concave section having an outward opening and a spacing wall provided between the opening and the hollow part, and the optical member inserted into the hollow part is fixed with an adhesive injected into the concave section.
An image-taking apparatus, comprising:
- a lens assembly comprising:
- an optical member including a lens, and
- a lens frame having a hollow part into which the optical member is inserted,
- wherein the lens frame has a porous structure and a concave section having an outward opening and a spacing wall provided between the opening and the hollow part, and the optical member inserted into the hollow part is fixed with an adhesive injected into the concave section;
- and
- an imaging device disposed at an image-forming surface of an image-forming optical system that is formed by the optical member inserted into the hollow part of the lens frame of the lens assembly.
Dependencies are inferred from the claim text.