WO2016114187A1 - レンズユニット - Google Patents
レンズユニット Download PDFInfo
- Publication number
- WO2016114187A1 WO2016114187A1 PCT/JP2016/050215 JP2016050215W WO2016114187A1 WO 2016114187 A1 WO2016114187 A1 WO 2016114187A1 JP 2016050215 W JP2016050215 W JP 2016050215W WO 2016114187 A1 WO2016114187 A1 WO 2016114187A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- holding frame
- optical axis
- movement guide
- fixed cylinder
- axis direction
- Prior art date
Links
Images
Classifications
-
- 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
- G02B7/028—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with means for compensating for changes in temperature or for controlling the temperature; thermal stabilisation
-
- 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
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
-
- 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
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/147—Optical correction of image distortions, e.g. keystone
-
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/53—Means for automatic focusing, e.g. to compensate thermal effects
Definitions
- FIG. 3 is a top view of the lens unit according to Embodiment 1.
- FIG. FIG. 2 is a schematic sectional view taken along line II-II shown in FIG. It is a top view of the focal distance correction means shown in FIG. It is a side view of the focal distance correction
- the optical system 4 has an optical axis C, and is configured such that a plurality of lenses are arranged along the optical axis C direction.
- the optical system 4 includes a correction lens 3 and at least one lens 2.
- the correction lens 3 corrects the movement of the focal position of the optical system 4 caused by the temperature change.
- the correction lens 3 is positioned closer to the image side than the lens 2.
- the correction lens 3 constitutes a part of a plurality of lenses included in the optical system 4.
- the movement guide unit 60 is provided between the fixed cylinder 10 and the holding frame 20 in the radial direction of the fixed cylinder 10.
- the movement guide unit 60 has a cylindrical shape.
- the movement guide unit 60 is provided separately from the fixed cylinder 10.
- the movement guide portion 60 and the holding frame 20 can be reliably brought into contact with each other.
- the radial forces acting on the fixed tube and F y, the function of the inclination d of f (d) with respect to a plane perpendicular to the optical axis C that is acceptable for the holding frame, the holding frame 20 and the correction lens 3 and the mg by weight of the moving portion composed of a temperature change required to the holding frame 20 starts moving as a [Delta] T a, the elastic coefficient of the bimetal 32 and E, the width of the bimetal 32 in the lateral direction Is b, t is the thickness of the bimetal 32, l is the length of the bimetal 32 in the longitudinal direction, K is the curvature coefficient of the bimetal 32, and the friction coefficient ⁇ when the holding frame 20 moves in the optical axis C direction is ⁇ .
- the urging forces of the first urging means 70 and the second urging means 50 are adjusted so that the force F y acting on the fixed cylinder 10 satisfies the following formula (1).
- the minimum force (minimum value) in the direction of the optical axis C acting on the bimetal 32 required for F is set to F zmin and the allowable stress ⁇ a of the bimetal 32 is set.
- the urging forces of the urging means 70 and the second urging means 50 are adjusted.
- Fz min is the elastic coefficient E of the bimetal 32, the width b of the bimetal 32, the plate thickness t of the bimetal 32, the length l of the bimetal 32, the bending coefficient K of the bimetal 32, and the elastic member 52 of the second urging means 50.
- the spring constant k the amount of deflection of the bimetal when all contacts the holder frame 20 of a plurality of bimetal 32 xb, is defined by the maximum temperature change [Delta] T max of environmental temperature.
- F zmin is expressed by, for example, the following formula (2a).
- the movement distance D falls within the range where D min and D max satisfy the following formula (4), and the temperature range of ⁇ T is
- the expression (5) is satisfied
- the movement distance D is within the range where D min and D max satisfy the following expression (6)
- the temperature range of ⁇ T satisfies the following expression (7)
- the amount of temperature change from the reference temperature ⁇ T indicates the absolute value of the temperature change from the reference temperature.
- the case where the second urging means 50 is provided has been described as an example.
- the present invention is not limited to this, and as long as the holding frame 20 is maintained in a posture in which it does not move due to its own weight, The two urging means 50 may not be provided.
- the holding frame 20 can be pulled toward the fixed cylinder 10 even when the lens unit 1 is used in a posture facing the ground side. Therefore, it can be used stably.
- FIG. 7 is a top view of the lens unit according to the present embodiment.
- the lens unit according to the present embodiment will be described with reference to FIG.
- the radial force F y acting on the fixed cylinder 10 and the force Fz acting on the bimetal 32 in the optical axis C direction satisfy the predetermined condition according to the first embodiment.
- the urging forces of the first urging means 70 and the second urging means 50 are determined.
- the movement guide unit 60 is pressed against the holding frame 20 in the radial direction of the fixed cylinder 10, and the holding frame 20 is moved to the movement guide unit. By moving it in contact with 60, substantially the same effect as in the first embodiment can be obtained.
- FIG. 8 is a top view of the lens unit according to the present embodiment.
- FIG. 9 is a schematic cross-sectional view along the line IX-IX shown in FIG.
- the lens unit 1B according to the present embodiment will be described with reference to FIGS.
- the movement guide unit 60A is configured by two spheres aligned along the optical axis C direction. Each of the two spheres makes point contact with the inner peripheral surface of the holding frame 20.
- the movement guide unit 60 comes into line contact with the holding frame 20 by rotating in the direction of the optical axis C while the sphere is in contact with the holding frame 20.
- the number of spheres is not limited to two, but may be one or three or more.
- the radial force F y acting on the fixed cylinder 10 and the force F z acting on the bimetal 32 in the optical axis C direction satisfy the predetermined condition according to the first embodiment.
- the urging forces of the first urging means 70 and the second urging means 50 are determined.
- the movement guide portion 60 is pressed against the holding frame 20 in the radial direction of the fixed cylinder 10 by the deformation due to the temperature change of the bimetal 32, and the holding frame 20 is moved and guided.
- the holding frame 20 is moved and guided.
- FIG. 10 is a top view of the lens unit according to the present embodiment.
- FIG. 11 is a schematic cross-sectional view along the line XI-XI shown in FIG.
- a lens unit 1C according to the present embodiment will be described with reference to FIGS.
- the lens unit 1 ⁇ / b> C according to the present embodiment has a holding frame 20 that is thicker than the lens unit 1 according to the first embodiment.
- the portion 60 is different from the configuration of the first urging means 70 ⁇ / b> C in that the portion 60 is provided in the recess 24 provided on the inner peripheral surface of the cylindrical portion 21 of the holding frame 20.
- Other configurations are almost the same.
- the concave portion 24 is provided on the inner peripheral surface of the cylindrical portion 21.
- the recessed part 24 is formed by the inner peripheral surface of the cylindrical part 21 being recessed toward the radially outer side.
- the recess 24 is provided between the front end 21a and the rear end 21b of the cylindrical portion 21.
- the bottom 25 of the recess 24 is provided to be a plane parallel to the optical axis C.
- the bottom 25 of the recess 24 corresponds to a movement reference plane.
- the radial force F y acting on the fixed cylinder 10 and the force F z acting on the bimetal 32 in the optical axis C direction satisfy the predetermined condition according to the first embodiment.
- the urging forces of the first urging means 70C and the second urging means 50 are determined.
- the movement guide portion 60 is pressed against the holding frame 20 in the radial direction of the fixed cylinder 10 by the deformation due to the temperature change of the bimetal 32, and the holding frame 20 is moved and guided.
- the holding frame 20 is moved and guided.
- the flat tube is provided between the fixed tube and the holding frame in the radial direction of the fixed tube, and is brought into contact with at least one of the fixed tube and the holding frame so as to be perpendicular to the optical axis.
- the thermal deformation member that restricts the rotation of the holding frame in the direction intersecting the guide and guides the movement of the holding frame in the optical axis direction is illustrated as an example, it is not limited thereto.
- the member may be made of a material having a linear expansion coefficient of 8 ⁇ 10 ⁇ 5 (1 / K) or more and 15 ⁇ 10 ⁇ 5 (1 / K) or less.
- a material suitable for a thermally deformable member having a linear expansion coefficient in this range a material having a relatively high thermal expansion property such as polyacetal resin (POM) or polybutylene terephthalate (PBT) can be suitably used.
- POM polyacetal resin
- PBT polybutylene terephthalate
- the lens unit based on this invention demonstrated above is a lens unit provided with the optical system comprised by several lens, Comprising: It has an optical axis while comprising a part of several said lens, The said optical axis direction
- the correction lens that corrects the movement of the focal position of the optical system caused by the temperature change, the holding frame that holds the correction lens, and the holding frame that is movably supported along the optical axis direction.
- a fixed cylinder that is provided between the fixed cylinder and the holding frame in a radial direction of the fixed cylinder, and is brought into contact with at least one of the fixed cylinder and the holding frame, thereby forming a plane perpendicular to the optical axis.
- a movement guide portion for restricting the rotation of the holding frame in the direction intersecting the guide and guiding the movement of the holding frame in the optical axis direction, and the fixed cylinder and the upper side in the optical axis direction.
- a bimetal provided between the holding frame, arranged in the circumferential direction of the fixed cylinder, and changing a distance along the optical axis direction between the holding frame and the fixed cylinder by deformation caused by a temperature change; and First urging means for urging the holding frame relative to the fixed cylinder via the movement guide portion in the radial direction of the fixed cylinder.
- the lens unit according to the present invention preferably further includes second urging means for urging the holding frame against the bimetal in the optical axis direction.
- the bimetal has a plate-like shape having a short side direction and a long side direction and having a plate thickness in a direction sandwiched between the fixed cylinder and the holding frame,
- the radial force acting on the fixed cylinder is Fy
- the function of the inclination ⁇ d with respect to the plane perpendicular to the optical axis allowed by the holding frame is f (d)
- the holding frame and the correction lens The weight of the configured moving part is mg
- the temperature change necessary for the holding frame to start moving is ⁇ Ta
- the bimetal elastic coefficient is E
- the bimetal width in the short direction is b
- the bimetal plate thickness is t
- the bimetal length in the longitudinal direction is l
- the bimetal bending coefficient is K
- the friction coefficient ⁇ when the holding frame moves in the optical axis direction If the it is preferred that defines the biasing force of the first biasing means and the second biasing means so as to satisfy the following formula (1).
- the second urging means includes an elastic member that expands and contracts along the optical axis direction.
- the force in the optical axis direction acting on the bimetal is Fz
- the optical axis acting on the bimetal necessary for all of the plurality of bimetals to contact the holding frame in the operating temperature range.
- the urging forces of the first urging means and the second urging means are determined so as to satisfy the following formula (2). It is preferable.
- the spring constant of the elastic member is k
- the amount of temperature change from the reference temperature is ⁇ T
- the temperature after the temperature change from the reference position of the holding frame at the reference temperature is D
- the movement distance along the direction parallel to the optical axis direction to the position of the holding frame is D
- the minimum value of the movement distance D is Dmin
- the maximum value of the movement distance D is Dmax
- the temperature change amount is preferably within the range in which the Dmin and the Dmax satisfy the following formula (4). .
- the moving distance D falls within a range where the Dmin and the Dmax satisfy the following formula (6). Further, when the temperature range of ⁇ T satisfies the following formula (7), the moving distance D is preferably within a range where the Dmin and the Dmax satisfy the following formula (8).
- a plurality of the second urging means are preferably provided.
- the urging force generated by each of the plurality of second urging means is It is preferable that the position of the holding frame with respect to the fixed cylinder is adjusted in the optical axis direction.
- a plurality of the movement guide portions are provided so as to be arranged at intervals in the circumferential direction when viewed from the optical axis direction.
- a line connecting the first movement guide part and the center of the fixed cylinder is a first virtual line
- a line connecting the second movement guide part and the center of the fixed cylinder is a second virtual line
- the second movement guide is located on the opposite side of the first movement guide portion when viewed, and the intersection of the first imaginary line and the outer peripheral surface of the fixed cylinder is the first intersection, and when viewed from the center.
- At least one of the movement guides is the movement guide in the circumferential direction. It is preferred that first moving guide unit and the second moving guide part is provided between the first intersection and the second intersection on the side not located. Moreover, it is preferable that the first urging means is provided so as to urge the fixed cylinder in the radial direction with respect to at least one of the other movement guides.
- the first urging means is configured to urge the fixed cylinder in the radial direction with respect to at least one of the first movement guide part and the second movement guide part. Is preferably further provided.
- the movement guide portion is provided separately from the fixed cylinder.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Lens Barrels (AREA)
Abstract
Description
図1は、本実施の形態に係るレンズユニットの上面図である。図2は、図1に示すII-II線に沿った概略断面図である。図1および図2を参照して、本実施の形態に係るレンズユニット1について説明する。
図7は、本実施の形態に係るレンズユニットの上面図である。図7を参照して、本実施の形態に係るレンズユニットについて説明する。
図8は、本実施の形態に係るレンズユニットの上面図である。図9は、図8に示すIX-IX線に沿った概略断面図である。図8および図9を参照して、本実施の形態に係るレンズユニット1Bについて説明する。
図10は、本実施の形態に係るレンズユニットの上面図である。図11は、図10に示すXI-XI線に沿った概略断面図である。図10および図11を参照して、本実施の形態に係るレンズユニット1Cについて説明する。
Claims (9)
- 複数のレンズによって構成される光学系を備えたレンズユニットであって、
複数の前記レンズの一部を構成するとともに光軸を有し、前記光軸方向に移動させることにより、温度変化により生じる前記光学系の焦点位置の移動を補正する補正レンズと、
前記補正レンズを保持する保持枠と、
前記保持枠を前記光軸方向に沿って移動可能に支持する固定筒と、
前記固定筒の径方向において前記固定筒と前記保持枠との間に設けられ、前記固定筒および前記保持枠の少なくとも一方に接触することにより、前記光軸に直交する平面に対して交差する方向への前記保持枠の回動を規制するとともに前記保持枠の前記光軸方向への移動を案内する移動案内部と、
前記光軸方向において前記固定筒と前記保持枠との間に設けられ、前記固定筒の周方向に複数配置され、温度変化に伴う変形により前記保持枠と前記固定筒との前記光軸方向に沿った距離を変化させる熱変形部材と、
前記固定筒の前記径方向において、前記移動案内部を介して前記保持枠を前記固定筒に対して相対的に付勢する第1付勢手段と、を備えたレンズユニット。 - 前記光軸方向において前記熱変形部材を介して前記保持枠を前記固定筒に対して付勢する第2付勢手段を、さらに備えた請求項1に記載のレンズユニット。
- 前記熱変形部材は、短手方向および長手方向を有しかつ前記固定筒と前記保持枠とに挟み込まれる方向に板厚を有する板状形状を有し、
前記固定筒に作用する前記径方向の力をFyとし、
前記保持枠に許容される前記光軸に垂直な平面に対する傾きdの関数をf(d)とし、
前記保持枠と前記補正レンズとによって構成される移動部の重量をmgとし、
前記保持枠が移動開始するために必要な温度変化をΔTaとし、
前記熱変形部材の弾性係数をEとし、
前記短手方向における前記熱変形部材の幅をbとし、
前記熱変形部材の板厚をtとし、
前記長手方向における前記熱変形部材の長さをlとし、
前記熱変形部材の湾曲係数をKとし、
前記保持枠が前記光軸方向に移動する際の摩擦係数μとした場合に、
下記式(1)を満たすように前記第1付勢手段および前記第2付勢手段の付勢力を定めた、請求項2に記載のレンズユニット。
- 前記弾性部材のはね定数をkとし、基準温度からの温度変化量をΔTとし、前記基準温度における前記保持枠の基準位置から温度変化後の前記保持枠の位置までの前記光軸方向に平行な方向に沿った移動距離をDとし、前記移動距離Dの最小値をDminとし、前記移動距離Dの最大値をDmaxとし、前記温度変化量の最大をΔTmaxとした場合に、前記ΔTの温度範囲が下記式(3)を満たす場合に、前記移動距離Dは、前記Dminおよび前記Dmaxが下記式(4)を満たす範囲内に収まり、前記ΔTの温度範囲が下記式(5)を満たす場合に、前記移動距離Dは、前記Dminおよび前記Dmaxが下記式(6)を満たす範囲内に収まり、前記ΔTの温度範囲が下記式(7)を満たす場合に、前記移動距離Dは、前記Dminおよび前記Dmaxが下記式(8)を満たす範囲内に収まる、請求項4に記載のレンズユニット。
- 前記第2付勢手段は、複数設けられ、
複数の前記第2付勢手段のそれぞれが発生する付勢力により、前記光軸方向において前記固定筒に対する前記保持枠の位置が調整される、請求項2から5のいずれか1項に記載のレンズユニット。 - 前記移動案内部は、前記光軸方向から見た場合に周方向に互い間隔をあけて並ぶように複数設けられ、
複数の前記移動案内部のうち前記周方向において互いに隣り合う2つの前記移動案内部を第1移動案内部および第2移動案内部とし、
前記光軸方向から見た場合に、前記第1移動案内部と前記固定筒の中心とを結ぶ線を第1仮想線とし、前記第2移動案内部と前記固定筒の前記中心とを結ぶ線を第2仮想線とし、
前記中心から見た場合に前記第1移動案内部の反対側に位置し、前記第1仮想線と前記固定筒の外周面との交点を第1交点とし、
前記中心から見た場合に前記第2移動案内部の反対側に位置し、前記第2仮想線と前記固定筒の前記外周面との交点を第2交点とした場合に、
前記第1移動案内部および前記第2移動案内部を除く他の前記移動案内部のうち少なくとも1つの前記移動案内部が、前記周方向において前記第1移動案内部および前記第2移動案内部が位置していない側にある前記第1交点と前記第2交点との間に設けられ、
他の前記移動案内部のうち少なくとも1つの前記移動案内部に対して前記固定筒の前記径方向に付勢するように前記第1付勢手段が設けられている、請求項1から6のいずれか1項に記載のレンズユニット。 - 前記第1移動案内部および前記第2移動案内部の少なくとも一方に対して前記固定筒の前記径方向に付勢するように前記第1付勢手段がさらに設けられている、請求項7に記載のレンズユニット。
- 前記移動案内部は、前記固定筒と別体に設けられている、請求項1から8のいずれか1項に記載のレンズユニット。
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2016569316A JP6627780B2 (ja) | 2015-01-14 | 2016-01-06 | レンズユニット |
US15/541,218 US10120157B2 (en) | 2015-01-14 | 2016-01-06 | Lens unit |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2015005251 | 2015-01-14 | ||
JP2015-005251 | 2015-01-14 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2016114187A1 true WO2016114187A1 (ja) | 2016-07-21 |
Family
ID=56405734
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2016/050215 WO2016114187A1 (ja) | 2015-01-14 | 2016-01-06 | レンズユニット |
Country Status (3)
Country | Link |
---|---|
US (1) | US10120157B2 (ja) |
JP (1) | JP6627780B2 (ja) |
WO (1) | WO2016114187A1 (ja) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN109116506A (zh) * | 2018-09-13 | 2019-01-01 | 襄阳市雄狮光电科技有限公司 | 一种投影镜头 |
CN113391512A (zh) * | 2020-12-23 | 2021-09-14 | 深圳市安华光电技术有限公司 | 具有自动调焦功能的投影仪的调焦机构、镜头及投影仪 |
TWI753935B (zh) * | 2016-08-18 | 2022-02-01 | 德商卡爾蔡司Smt有限公司 | 光學系統、微影裝置與方法 |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP6685748B2 (ja) * | 2016-02-10 | 2020-04-22 | キヤノン株式会社 | 光学機器 |
CN112099175B (zh) * | 2020-08-31 | 2022-07-29 | 西安空间无线电技术研究所 | 一种光学天线离焦弓形双金属热补偿装置 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11231192A (ja) * | 1998-02-13 | 1999-08-27 | Nikon Corp | 光学素子支持装置及び鏡筒並びに投影露光装置 |
JP2008026864A (ja) * | 2006-03-24 | 2008-02-07 | Konica Minolta Opto Inc | 投射レンズユニット |
WO2011158643A1 (ja) * | 2010-06-16 | 2011-12-22 | コニカミノルタオプト株式会社 | 焦点補正装置 |
JP2012141536A (ja) * | 2011-01-06 | 2012-07-26 | Nikon Corp | 光学装置及び光学機器 |
JP2012242728A (ja) * | 2011-05-23 | 2012-12-10 | Konica Minolta Advanced Layers Inc | 温度補償機能を有するレンズユニット |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS57202508A (en) * | 1981-06-08 | 1982-12-11 | Olympus Optical Co Ltd | Lens holder of interlens space changing with temperature |
JPH11337798A (ja) * | 1998-05-27 | 1999-12-10 | Fuji Photo Film Co Ltd | レンズ付きフイルムユニット |
-
2016
- 2016-01-06 WO PCT/JP2016/050215 patent/WO2016114187A1/ja active Application Filing
- 2016-01-06 JP JP2016569316A patent/JP6627780B2/ja active Active
- 2016-01-06 US US15/541,218 patent/US10120157B2/en active Active
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH11231192A (ja) * | 1998-02-13 | 1999-08-27 | Nikon Corp | 光学素子支持装置及び鏡筒並びに投影露光装置 |
JP2008026864A (ja) * | 2006-03-24 | 2008-02-07 | Konica Minolta Opto Inc | 投射レンズユニット |
WO2011158643A1 (ja) * | 2010-06-16 | 2011-12-22 | コニカミノルタオプト株式会社 | 焦点補正装置 |
JP2012141536A (ja) * | 2011-01-06 | 2012-07-26 | Nikon Corp | 光学装置及び光学機器 |
JP2012242728A (ja) * | 2011-05-23 | 2012-12-10 | Konica Minolta Advanced Layers Inc | 温度補償機能を有するレンズユニット |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI753935B (zh) * | 2016-08-18 | 2022-02-01 | 德商卡爾蔡司Smt有限公司 | 光學系統、微影裝置與方法 |
CN109116506A (zh) * | 2018-09-13 | 2019-01-01 | 襄阳市雄狮光电科技有限公司 | 一种投影镜头 |
CN113391512A (zh) * | 2020-12-23 | 2021-09-14 | 深圳市安华光电技术有限公司 | 具有自动调焦功能的投影仪的调焦机构、镜头及投影仪 |
Also Published As
Publication number | Publication date |
---|---|
JP6627780B2 (ja) | 2020-01-08 |
JPWO2016114187A1 (ja) | 2017-10-19 |
US20170363834A1 (en) | 2017-12-21 |
US10120157B2 (en) | 2018-11-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2016114187A1 (ja) | レンズユニット | |
JP5802401B2 (ja) | レンズ鏡枠およびレンズ組立体 | |
US4861137A (en) | Mounting device for a resin lens | |
US9854120B2 (en) | Optical scanning device and image forming apparatus | |
US8270053B2 (en) | Holding mechanism for long length optical element, optical scanning device, and image forming device | |
JP2008090257A (ja) | 投射ユニット | |
US20160313554A1 (en) | Optical scanning device, and image forming apparatus equipped with the same | |
JP2009053378A (ja) | 光走査装置及び画像形成装置 | |
KR100901213B1 (ko) | 화각 조절이 가능한 렌즈튜브 어셈블리 | |
US8229323B2 (en) | Scanning optical apparatus and image forming apparatus using the same, which are capable of reducing a change of an irradiation position of a light flux on a deflection unit | |
US20110222148A1 (en) | Holding apparatus and optical apparatus | |
JP5273065B2 (ja) | 光走査装置及び画像形成装置 | |
US7937983B2 (en) | Curved surface forming apparatus, optical scanning apparatus, and image forming apparatus | |
US11841498B2 (en) | Optical scanner and electrophotographic image forming apparatus | |
JP4869633B2 (ja) | 顕微鏡対物レンズ及び顕微鏡 | |
JP2007148020A (ja) | 撮像素子の位置調整装置及びカメラ | |
EP3147717B1 (en) | Light source device, optical scanning apparatus, and image forming apparatus | |
JP2010276860A (ja) | 画像形成装置における走査光学系 | |
JP2009128442A (ja) | 撮像装置 | |
JP4672278B2 (ja) | 光学レンズ装置及びレーザ装置、光学レンズの位置決め方法 | |
US20070047604A1 (en) | Optical apparatus having a laser light source unit, and image recording apparatus | |
JP5381880B2 (ja) | 光走査光学装置 | |
WO2011158643A1 (ja) | 焦点補正装置 | |
JP2021092742A (ja) | レンズ保持機構 | |
JP2024085767A (ja) | レンズ装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 16737258 Country of ref document: EP Kind code of ref document: A1 |
|
ENP | Entry into the national phase |
Ref document number: 2016569316 Country of ref document: JP Kind code of ref document: A |
|
WWE | Wipo information: entry into national phase |
Ref document number: 15541218 Country of ref document: US |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
122 | Ep: pct application non-entry in european phase |
Ref document number: 16737258 Country of ref document: EP Kind code of ref document: A1 |