LENS UNIT
First Claim
1. A lens unit holding at least two lenses in a lens frame adjacently in an optical axis direction, comprising:
- positioning protrusions formed in correspondence with each of the two lenses in at least three separate locations in a peripheral direction of the lens frame, protruding from an inner surface of the lens frame and contacting a peripheral surface of a corresponding lens to position the corresponding lens relative to the lens frame;
at least one adhesive filling space formed between the peripheral surface of each of the two lenses and the inner surface of the lens frame, in overlap with the two lenses; and
at least one adhesive injection hole formed in the lens frame in communication with the adhesive filling space.
1 Assignment
0 Petitions
Accused Products
Abstract
A lens unit (LU) holding at least two lenses (4, 5) in a lens frame (1) adjacently in the optical axis direction and provided with positioning protrusions (2c, 2d) formed in correspondence with each of the two lenses (4, 5) in at least three separate locations in the peripheral direction of the lens frame (1), protruding from the inner surface of the lens frame (1) and contacting a peripheral surface of a corresponding lens to position the corresponding lens relative to the lens frame (1), an adhesive filling space (GSP1) formed between the peripheral surface of each of the two lenses (4, 5) and the inner surface of the lens frame (1) in overlap with the two lenses (4, 5), and an adhesive injection hole (1c) formed in the lens frame (1) in communication with the adhesive filling space (GSP1).
17 Citations
4 Claims
-
1. A lens unit holding at least two lenses in a lens frame adjacently in an optical axis direction, comprising:
-
positioning protrusions formed in correspondence with each of the two lenses in at least three separate locations in a peripheral direction of the lens frame, protruding from an inner surface of the lens frame and contacting a peripheral surface of a corresponding lens to position the corresponding lens relative to the lens frame; at least one adhesive filling space formed between the peripheral surface of each of the two lenses and the inner surface of the lens frame, in overlap with the two lenses; and at least one adhesive injection hole formed in the lens frame in communication with the adhesive filling space. - View Dependent Claims (2, 3, 4)
-
Specification