LENS APPARATUS AND IMAGING SYSTEM USING THE SAME

• US 20200133096A1
• Filed: 10/21/2019
• Published: 04/30/2020
• Est. Priority Date: 10/31/2018
• Status: Active Grant

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Ohmori, Katsumi
• Granted Patent: US 11,016,365 B2
• Time in Patent Office: Days
• CPC Class Codes: G03B 17/14 interchangeably
• CPC Class Codes: H04N 23/54 Mounting of pick-up tubes, electronic image sensors, deviation or focusing coils
• CPC Class Codes: H04N 23/55 Optical parts specially adapted for electronic image sensors; Mounting thereof

Abstract

A lens apparatus includes a conductive mount member, and a nonconductive fixed member fixed onto the mount member and having a conductive pattern.

Claims

1. A lens apparatus comprising:

a conductive mount member; and

a nonconductive fixed member fixed onto the mount member,

wherein the fixed member has a conductive pattern.

2. The lens apparatus according to claim 1, wherein the conductive pattern is formed on a plurality of surfaces of the fixed member.

3. The lens apparatus according to claim 1, further comprising a conductive member,

wherein the mount member and the conductive member are electrically connected via the conductive pattern.

4. The lens apparatus according to claim 3, wherein the fixed member and the conductive member contact each other via the conductive pattern.

5. The lens apparatus according to claim 3, wherein the conductive member is disposed on an inner circumferential side of the fixed member.

6. The lens apparatus according to claim 3, wherein the fixed member and the conductive member contact each other via the conductive pattern and conductive grease.

7. The lens apparatus according to claim 6, wherein the fixed member has a recess configured to accommodate the conductive grease.

8. The lens apparatus according to claim 3, wherein the conductive member is a zoom operation ring.

9. The lens apparatus according to claim 3, wherein the conductive member is disposed on the outer circumferential side of the fixed member.

10. The lens apparatus according to claim 3, further comprising an optical element,

wherein the conductive member is configured to rotate to move the optical element.

11. The lens apparatus according to claim 1, further comprising a first conductive member and a second conductive member,

wherein the mount member and the first and second conductive members are electrically connected to each other via the conductive pattern.

12. The lens apparatus according to claim 11, wherein the first conductive member is disposed on an inner circumferential side of the fixed member, and the second conductive member is disposed on the outer circumferential side of the fixed member.

13. The lens apparatus according to claim 1, wherein the fixed member includes a first fixed member and a second fixed member, and the conductive pattern is formed on at least one of the first fixed member and the second fixed member.

14. An imaging system comprising:

the lens apparatus according to claims 1; and

an imaging apparatus to which the lens apparatus is attached via the mount member

15. An imaging system according to claim 14, wherein the lens apparatus is detachable from the imaging apparatus.