WO2015190182A1 - レンズ鏡筒 - Google Patents
レンズ鏡筒 Download PDFInfo
- Publication number
- WO2015190182A1 WO2015190182A1 PCT/JP2015/062669 JP2015062669W WO2015190182A1 WO 2015190182 A1 WO2015190182 A1 WO 2015190182A1 JP 2015062669 W JP2015062669 W JP 2015062669W WO 2015190182 A1 WO2015190182 A1 WO 2015190182A1
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- WO
- WIPO (PCT)
- Prior art keywords
- fixed
- movable
- movable cylinder
- cylinder part
- lens
- Prior art date
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Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/025—Mountings, adjusting means, or light-tight connections, for optical elements for lenses using glue
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B15/00—Special procedures for taking photographs; Apparatus therefor
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
- G03B17/14—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets interchangeably
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B9/00—Exposure-making shutters; Diaphragms
- G03B9/02—Diaphragms
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/55—Optical parts specially adapted for electronic image sensors; Mounting thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/60—Control of cameras or camera modules
- H04N23/68—Control of cameras or camera modules for stable pick-up of the scene, e.g. compensating for camera body vibrations
- H04N23/682—Vibration or motion blur correction
- H04N23/685—Vibration or motion blur correction performed by mechanical compensation
Definitions
- the present invention relates to a lens barrel configured to be detachable from a camera body.
- Non-Patent Document 1 Patent Documents 1 and 2.
- FIG. 5 is a side view showing an example of a conventional structure of a lens barrel configured to be attachable to and detachable from a camera body.
- reference numeral B denotes a camera body
- reference numeral 100 denotes the camera body B.
- 1 shows a lens barrel that is detachably attached to the lens barrel.
- the lens barrel 100 includes a plurality of cylindrical portions 101A and 101B, and is configured to adjust the focus by relatively rotating the cylindrical portions 101A and 101B.
- Reference numeral 102 denotes a locking screw for fixing the cylindrical portions 101A and 101B so that the rotational positions of the cylindrical portions 101A and 101B do not shift.
- JP 2013-84016 A Japanese Patent No. 5372385
- the above-described locking screw 102 has a problem that it is difficult to tighten due to its small diameter.
- An object of the present invention is to provide a lens barrel that can solve the above-described problems.
- the invention according to claim 1 is illustrated in FIGS. 1 to 3 (a) and 6 and is a lens barrel (1, 2) configured to be detachable from the camera body (B). , 3)
- the base end side (10a, 20a, 30a) is attached to the camera body (B), and a screw portion (hereinafter, “fixed” is attached to the inner peripheral surface (10c, 20c, 30c) of the distal end side (10b, 20b, 30b).
- Movable cylinders (11, 21, 31) arranged in a movable state inside, The fixed position by being brought into contact with the distal end side (10b, 20b, 30b) of the fixed cylinder part (10, 20, 30) while being screwed to the movable cylinder side screw part (11b, 21b, 31b).
- a nut member (12, 22, 32) configured to suppress relative rotation between the cylindrical portion (10, 20, 30) and the movable cylindrical portion (11, 21, 31).
- the invention according to claim 2 is the invention according to claim 1, in which the movable cylinder portion (21, 31) is the same as shown in FIGS. 2 (a) (b), FIG. 3 (a) and FIG. A proximal end side movable barrel portion (210, 310) having the movable barrel side screw portion (21b, 31b), and a distal end side movable barrel portion removably attached to the proximal end side movable barrel portion (210, 310). (211, 311) and a fixed throttle plate (212, 314) arranged in a state of being sandwiched between the proximal end side movable cylinder part (210, 310) and the distal end side movable cylinder part (211, 311). ).
- the invention according to claim 3 is different from the opening of the fixed diaphragm plate (212) (not shown) in the invention according to claim 2 as illustrated in FIGS. 3 (b) to 3 (d).
- a replacement fixed diaphragm plate (212A, 212B, 212C) having openings (212Aa, 212Ba, 212Ca) is provided.
- a portion (hereinafter referred to as a “lens holding portion”) that holds the lenses (A 1 , A 2 ) in the movable cylinder portion (refer to FIG. 1).
- Through-holes (see reference numeral 11c in FIG. 1 and reference numerals 211c and 213c in FIG. 3A) are formed in reference numeral 11, reference numerals 211 and 213 in FIG.
- An adhesive (not shown) can be filled between the outer peripheral surface of the lens (A 1 , A 2 ) and the lens holding portion (11, 211, 213) through the through hole (11 c, 211 c, 213 c). It was configured as described above.
- the fixed cylinder portion reference numeral 20 in FIGS. 2 (a) (b) (See reference numeral 20e in the figure) and / or irregularities formed in the outer peripheral surface of the movable cylinder part (see reference numeral 11 in FIG. 1).
- a movable cylinder side knurl see reference numeral 11d in the figure
- the nut members (12, 22) are formed in different shapes and / or different colors from the fixed cylinder side knurl (20e) and / or the movable cylinder side knurl (11d).
- a spring member (reference numeral in FIG. 6) is an elastic member disposed between the fixed cylinder part (30) and the movable cylinder part (31) so as to urge the movable cylinder part (31) in the direction (C). 33).
- the nut member allows the relative relationship between the fixed cylinder part and the movable cylinder part. Rotation can be suppressed, and focus and zoom shifts associated with the vibration can be prevented. Further, since the nut member has a larger diameter than the locking screw illustrated in FIG. 5, the nut member has an effect of being easily tightened and not easily loosened.
- the diaphragm used for the lens barrel is a variable diaphragm
- the installation location vibration in the factory, vibration received from the arm when the camera is installed on a movable object such as a manufacturing arm in the factory
- earthquake There is also a possibility that the diaphragm blades rub against each other due to vibrations caused by other factors, and dust may be generated to cause image noise.
- the fixed diaphragm plate is used instead of the variable diaphragm.
- the lens barrel is attached to the camera body for a long period of time, it is possible to prevent displacement of each lens from the proper position.
- the said fixed cylinder side knurl, the said movable cylinder side knurl, and the said nut member can be clearly distinguished by visual sense and touch.
- FIG. 1 is an exploded perspective view showing an example of the configuration of a lens barrel according to the present invention.
- FIGS. 2A and 2B are end views showing another example of the configuration of the lens barrel according to the present invention.
- 3 (a) a is an exploded end view of the lens barrel shown in FIG. 2 (a) (b), and
- FIGS. 3 (b) to (c) are front views showing examples of the shape of the replacement fixed diaphragm plate.
- FIGS. 4A to 4C are front views showing an example of a conventional structure of a diaphragm plate.
- FIG. 5 is a side view showing an example of a conventional structure of a lens barrel.
- FIG. 6 is an end view showing another example of the configuration of the lens barrel according to the present invention.
- the lens barrel according to the present invention is configured to be detachable from the camera body.
- This lens barrel is illustrated by reference numerals 1, 2 and 3 in FIGS. 1, 2 (a), (b), 3 (a) and 6.
- a base end side (meaning one end side along the optical axis direction C) 10a, 20a, 30a is mounted on the camera body B and a distal end side (meaning the other end side along the optical axis direction C) 10b
- a cylindrical member that holds the lenses A 1 and A 2 and pitch screw portions (hereinafter referred to as “movable tube side screw portions”) 11b, 21b, and 31b are formed on the outer peripheral surfaces 11a, 21a, and 31a.
- the movable cylinder side screw parts 11b, 21b, 31b are moved in the optical axis direction C to the inside of the fixed cylinder parts 10, 20, 30 in a state where they are screwed to the fixed cylinder side screw parts 10d, 20d, 30d.
- Movable cylinder parts 11, 21, 31 arranged in a possible state;
- the fixed cylinder portions 10, 20 are brought into contact with the distal end sides 10 b, 20 b, 30 b of the fixed cylinder portions 10, 20, 30 while being screwed to the movable cylinder side screw portions 11 b, 21 b, 31 b. , 30 and the nut members (ring nuts) 12, 22, 32 configured to suppress relative rotation between the movable cylinder portions 11, 21, 31; It has.
- the nut members 12, 22, and 32 are preferably formed of a hard material (preferably metal) that is less susceptible to secular change.
- the nut members 12, 22, and 32 can be used to Relative rotation with the movable cylinder portions 11, 21, 31 can be suppressed, and shifts in focus and zoom associated with the vibrations can be prevented. Further, since the nut members 12, 22, and 32 have a larger diameter than the locking screw 102 illustrated in FIG. 5, the nut members 12, 22, and 32 have an effect of being easily tightened and not easily loosened.
- the parts inside the lens barrel may rub against each other due to earthquakes or vibrations caused by other factors, and dust may be generated and cause noise in the image. It is done.
- the nut members 12, 22, and 32 are in contact with the entire distal end sides 10b, 20b, and 30b of the fixed cylinder portions 10, 20, and 30. Therefore, since the contact area becomes relatively large, dust is hardly generated even when subjected to vibration such as an earthquake, and such a problem can be solved.
- the movable cylinder portion is a base having the movable cylinder side screw portions 21b and 31b as shown in detail by reference numerals 21 and 31 in FIGS. 2 (a), 2 (b), 3 (a) and 6.
- a pitch screw portion (not shown) is formed on the inner peripheral surface or outer peripheral surface of the distal end side movable cylinder portions 211 and 311, and the pitch screw portion is formed on the outer peripheral surface or inner peripheral surface of the base end side movable cylinder portions 210 and 310. (Not shown) may be formed, and the distal end side movable cylinder portions 211 and 311 may be configured to be detachable from the proximal end side movable cylinder portions 210 and 310. Further, the lenses A 1 and A 2 are divided into two lens groups, and one lens group A 1 has the base end side movable tube portions 210 and 310 (in the example shown in the drawing, the base end side movable tube portion).
- the fixed diaphragm plates 212 and 314 are disposed between the two lens groups A 1 and A 2 .
- the fixed diaphragm plates 212 and 314 are preferably disk-shaped having openings (diaphragm openings).
- the diaphragm blades may rub due to vibration caused by an earthquake or other factors, and dust may be generated, causing noise in the image. Is also possible. However, when the above-described fixed diaphragm plate 212 is used, there is an effect that generation of such dust and noise can be suppressed.
- the fixed diaphragm plates 212 and 314 may be configured to be replaceable by removing the distal end side movable cylinder portions 211 and 311 from the proximal end side movable cylinder portions 210 and 310.
- replacement fixed throttle plates 212Aa, 212Ba having openings 212Aa, 212Ba, 212Ca having sizes different from the openings (not shown) of the fixed throttle plate 212. It is preferable to provide one or a plurality of 212Cas and replace them appropriately. For example, when the place where the camera body B is installed is a bright place such as outdoors, a replacement fixed diaphragm plate 212Aa having the smallest opening 212Aa as illustrated in FIG.
- the replacement fixed diaphragm plates 212Ba and 212Ca having large openings 212Ba and 212Ca as illustrated in (c) and (d) in FIG. It is good to attach to 2.
- the fixed diaphragm plates 212, 212A, 212B, and 212C are preferably thicker from the viewpoint of securing light-shielding properties and mechanical strength, and optically thinner. From the viewpoint of making it, a range of 0.05 to 0.1 mm is preferable.
- the portion (hereinafter referred to as “lens holding portion”) that holds the lenses A 1 and A 2 in the movable cylinder portion penetrates. Holes 11c, 211c, and 213c are formed, and an adhesive is provided between the outer peripheral surfaces of the lenses A 1 and A 2 and the lens holding portions 11, 111, and 213 through the through holes 11c, 211c, and 213c. It may be configured to fill (not shown). In such a configuration, an adhesive can be poured between the outer peripheral surfaces of the lenses A 1 and A 2 and the lens holding portions 11, 11, and 213, and the lens barrel 2 is attached to the camera body B. Even when the lens is attached for a long period of time, it is possible to prevent the positional deviation of the lenses A 1 and A 2 from the appropriate positions.
- the base end side 20a of the fixed barrel portion 20 is attached to the camera body B and fixed. At this time, it is preferable to apply an adhesive between the base end side 20a and the camera body B so as to prevent loosening of the fixed cylinder portion 20 due to vibration.
- a fixed aperture with an opening having an optimum size is obtained by actually looking at a place where the camera (that is, the camera body B and the lens barrel 2) is installed.
- the plate 212, 212A, 212B or 212C is selected, and the selected fixed diaphragm plate 212, 212A, 212B or 212C is inserted between the base end side movable cylinder part 210 and the tip end side movable cylinder part 211.
- an adhesive is applied to a portion (for example, a pitch screw portion (not shown)) where the proximal end side movable cylinder portion 210 and the distal end side movable cylinder portion 211 abut, and the movable cylinder portion 210, It is preferable that 211 does not loosen due to vibration or the like. And it is good to attach the said nut member 22 to this base end side movable cylinder part 210, and to attach this base end side movable cylinder part 210 to the said fixed cylinder part 20.
- the camera body B to which the lens barrel 2 is attached is installed at a predetermined location, and the movable cylinder portion 21 is rotated to perform focus adjustment.
- the camera body B is fixed by the nut member 22.
- This focus adjustment must be performed with the camera body B installed in the field, and the fixation of the focus (that is, suppression of relative rotation between the movable cylinder part 21 and the fixed cylinder part 20) is to be performed with an adhesive.
- it may be difficult to apply the adhesive depending on the installation state and installation posture of the camera body B, it may be difficult to apply the adhesive. For example, when the camera body B is suspended from the ceiling or the eaves, it is necessary to apply the adhesive in a state where the camera body B is suspended from the ceiling or the eaves.
- the application work must be performed, and there is a possibility that the adhesive may flow into an unintended location or sag. Moreover, there is a possibility that the focus may be shifted due to vibration (for example, vibration from a wind or vibration from an automobile traveling on a nearby road) before the adhesive is sufficiently cured.
- vibration for example, vibration from a wind or vibration from an automobile traveling on a nearby road
- a fixed cylinder side knurl 20e which is an uneven portion formed on the outer peripheral surface of the fixed cylinder part 20
- the movable cylinder side knurl 11d which is an uneven part formed on the outer peripheral surface of the movable cylinder part 11.
- the nut members 12 and 22 may be formed in a different shape and / or different color from the fixed cylinder side knurl 20e and / or the movable cylinder side knurl 11d.
- the fixed cylinder side knurl 20e, the movable cylinder side knurl 11d, and the nut members 12 and 22 can be clearly distinguished by visual sense and tactile sense, and erroneous operation or the like can be prevented.
- an elastic member 33 is disposed between the fixed tube portion 30 and the movable tube portion 31, and the movable tube portion 31 is moved in the optical axis direction (that is, the lens mirror). It is preferable to urge the cylinder 3 toward the optical axis direction C of the lenses A 1 and A 2 held by the movable cylinder portion 31.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Lens Barrels (AREA)
- Structure And Mechanism Of Cameras (AREA)
- Diaphragms For Cameras (AREA)
- Camera Bodies And Camera Details Or Accessories (AREA)
Abstract
Description
基端側(10a,20a,30a)が前記カメラボディ(B)に装着されると共に先端側(10b,20b,30b)の内周面(10c,20c,30c)にネジ部(以下、「固定筒側ネジ部」とする)(10d,20d,30d)が形成されてなる固定筒部(10,20,30)と、
レンズ(A1,A2)を保持する筒状の部材であって、外周面(11a,21a,31a)にネジ部(以下、「可動筒側ネジ部」とする)(11b,21b,31b)が形成されると共に該可動筒側ネジ部(11b,21b,31b)が前記固定筒側ネジ部(10d,20d,30d)に螺合された状態で前記固定筒部(10,20,30)の内側に移動可能な状態で配置されてなる可動筒部(11,21,31)と、
前記可動筒側ネジ部(11b,21b,31b)に螺合された状態で前記固定筒部(10,20,30)の先端側(10b,20b,30b)に当接されることにより該固定筒部(10,20,30)と前記可動筒部(11,21,31)との相対回転を抑制するように構成されたナット部材(12,22,32)と、を備えたことを特徴とする。
該貫通孔(11c,211c,213c)を介して該レンズ(A1,A2)の外周面と該レンズ保持部(11,211,213)との間に接着剤(不図示)を充填できるように構成されたことを特徴とする。
前記ナット部材(12,22)は、前記固定筒側ローレット(20e)及び/又は前記可動筒側ローレット(11d)と異なる形状及び/又は異なる色で形成されていることを特徴とする。
・ 基端側(光軸方向Cに沿った一端側の意)10a,20a,30aが前記カメラボディBに装着されると共に先端側(光軸方向Cに沿った他端側の意)10b,20b,30bの内周面10c,20c,30cにピッチネジ部(以下、「固定筒側ネジ部」とする)10d,20d,30dが形成されてなる固定筒部10,20,30と、
・ レンズA1,A2を保持する筒状の部材であって、外周面11a,21a,31aにピッチネジ部(以下、「可動筒側ネジ部」とする)11b,21b,31bが形成されると共に該可動筒側ネジ部11b,21b,31bが前記固定筒側ネジ部10d,20d,30dに螺合された状態で前記固定筒部10,20,30の内側に前記光軸方向Cに移動可能な状態で配置されてなる可動筒部11,21,31と、
・ 前記可動筒側ネジ部11b,21b,31bに螺合された状態で前記固定筒部10,20,30の先端側10b,20b,30bに当接されることにより該固定筒部10,20,30と前記可動筒部11,21,31との相対回転を抑制するように構成されたナット部材(リングナット)12,22,32と、
を備えている。なお、前記ナット部材12,22,32は、経年変化を受けにくい硬質の材料(好ましくは金属)で形成されていると良い。
・ 前記固定絞り板の前記可動筒部21への取り付け
・ 該可動筒部21の前記固定筒部20への取り付け
の順で各工程を実施しているが、各工程の実施順序を変えても良い。
・ 図2(a) (b) に例示するように、前記固定筒部20の外周面に形成された凹凸部である固定筒側ローレット20e、
及び/又は、
・ 図1に例示するように、前記可動筒部11の外周面に形成された凹凸部である可動筒側ローレット11d
を備えるようにし、しかも、前記ナット部材12,22は、前記固定筒側ローレット20e及び/又は前記可動筒側ローレット11dと異なる形状及び/又は異なる色で形成すると良い。そのようにした場合には、前記固定筒側ローレット20eと前記可動筒側ローレット11dと前記ナット部材12,22とを視覚と触覚とで明確に区別でき、誤操作等を防止することができる。特に、異なる色で形成した場合には、製品マニュアルでの解説もわかりやすく表示できるという効果を奏する。
2 レンズ鏡筒
3 レンズ鏡筒
10 固定筒部
10a 固定筒部の基端側
10b 固定筒部の先端側
10c 固定筒部の内周面
10d 固定筒側ネジ部
11 可動筒部、レンズ保持部
11a 可動筒部の外周面
11b 可動筒側ネジ部
11c 貫通孔
11d 可動筒側ローレット
12 ナット部材
20 固定筒部
20a 固定筒部の基端側
20b 固定筒部の先端側
20c 固定筒部の内周面
20d 固定筒側ネジ部
20e 固定筒側ローレット
21 可動筒部
21a 可動筒部の外周面
21b 可動筒側ネジ部
22 ナット部材
30 固定筒部
30a 固定筒部の基端側
30b 固定筒部の先端側
30c 固定筒部の内周面
30d 固定筒側ネジ部
30e 固定筒側ローレット
31 可動筒部
31a 可動筒部の外周面
31b 可動筒側ネジ部
32 ナット部材
33 スプリング部材
210 基端側可動筒部
211 先端側可動筒部(レンズ保持部)
211c 貫通孔
212 固定絞り板
212A,212B,212C 取り替え用固定絞り板
212Aa,212Ba,212Ca 開口
213 レンズ保持部
213c 貫通孔
310 基端側可動筒部
311 先端側可動筒部(レンズ保持部)
314 固定絞り板
A1,A2 レンズ
B カメラボディ
Claims (7)
- カメラボディに着脱可能となるように構成されたレンズ鏡筒において、
基端側が前記カメラボディに装着されると共に先端側の内周面にネジ部(以下、「固定筒側ネジ部」とする)が形成されてなる固定筒部と、
レンズを保持する筒状の部材であって、外周面にネジ部(以下、「可動筒側ネジ部」とする)が形成されると共に該可動筒側ネジ部が前記固定筒側ネジ部に螺合された状態で前記固定筒部の内側に移動可能な状態で配置されてなる可動筒部と、
前記可動筒側ネジ部に螺合された状態で前記固定筒部の先端側に当接されることにより該固定筒部と前記可動筒部との相対回転を抑制するように構成されたナット部材と、
を備えたことを特徴とするレンズ鏡筒。 - 前記可動筒部は、前記可動筒側ネジ部を有する基端側可動筒部と、該基端側可動筒部に着脱可能に取り付けられる先端側可動筒部と、該基端側可動筒部と該先端側可動筒部との間に挟持された状態で配置される固定絞り板と、を有する、
ことを特徴とする請求項1に記載のレンズ鏡筒。 - 前記固定絞り板の開口と異なる大きさの開口を持つ取り替え用固定絞り板、
を備えたことを特徴とする請求項2に記載のレンズ鏡筒。 - 前記可動筒部における前記レンズを保持する部分(以下、「レンズ保持部」とする)に貫通孔が形成され、
該貫通孔を介して該レンズの外周面と該レンズ保持部との間に接着剤を充填できるように構成された、
ことを特徴とする請求項1に記載のレンズ鏡筒。 - 前記固定筒部の外周面に形成された凹凸部である固定筒側ローレット、及び/又は、前記可動筒部の外周面に形成された凹凸部である可動筒側ローレット、を備え、
前記ナット部材は、前記固定筒側ローレット及び/又は前記可動筒側ローレットと異なる形状及び/又は異なる色で形成されている、
ことを特徴とする請求項1に記載のレンズ鏡筒。 - 前記可動筒部が保持するレンズの光軸方向に該可動筒部を付勢するように前記固定筒部と該可動筒部との間に配置された弾性部材、
を備えたことを特徴とする請求項1に記載のレンズ鏡筒。 - 前記弾性部材はコイルスプリング部材であることを特徴とする請求項6に記載のレンズ鏡筒。
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CN201580030631.0A CN106462035B (zh) | 2014-06-09 | 2015-04-27 | 透镜镜筒 |
JP2016527683A JP6612225B2 (ja) | 2014-06-09 | 2015-04-27 | レンズ鏡筒 |
EP15806383.4A EP3153921B1 (en) | 2014-06-09 | 2015-04-27 | Lens barrel |
US15/317,192 US10295839B2 (en) | 2014-06-09 | 2015-04-27 | Lens barrel |
EP19163285.0A EP3525041B1 (en) | 2014-06-09 | 2015-04-27 | Lens barrel |
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