Title:
LENS BARREL
Document Type and Number:
WIPO Patent Application WO/2018/139352
Kind Code:
A1
Abstract:
A lens barrel (100) is provided with: a fixed frame (105); a cam frame (106) that rotates with respect to the fixed frame (105); and a lens frame (22) that interlocks with the rotation of the cam frame (106) and makes a straight movement with respect to the fixed frame (105). In the fixed frame (105), a pair of first groove portions (61a, 61b), which penetrate through the fixed frame (105) and extend substantially in parallel with an optical axis (L), are formed. The lens frame (22) is provided with: a first cam pin (41) that has a truncated cone shape and projects from one groove portion (61a) of the pair of first groove portions (61a, 61b) to be engaged with the cam frame (106); a pair of straight keys (44, 45) that are guided by the pair of first groove portions (61a, 61b), respectively; and an impelling portion (46) that impels the first cam pin (41) in a projection direction of the first cam pin (41). The pair of first groove portions (61a, 61b) oppose each other in an impelling direction of the first cam pin (41) with the optical axis (L) interposed therebetween.
Inventors:
YOSHIKAWA NAOKI
Application Number:
PCT/JP2018/001519
Publication Date:
August 02, 2018
Filing Date:
January 19, 2018
Export Citation:
Assignee:
PANASONIC IP MAN CO LTD (JP)
International Classes:
G02B7/04; G02B7/02
Domestic Patent References:
| WO2014136162A1 | 2014-09-12 |
Foreign References:
| JP2016114799A | 2016-06-23 | |||
| JP2016145969A | 2016-08-12 | |||
| JP2004093630A | 2004-03-25 | |||
| JPH08248287A | 1996-09-27 |
Attorney, Agent or Firm:
KAMATA Kenji et al. (JP)
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