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1. 发明专利

JP2011215290A Scanning optical apparatus 审中-公开
标题翻译：扫描光学装置
公开(公告)号：JP2011215290A
公开(公告)日：2011-10-27
申请号：JP2010082085
申请日：2010-03-31
申请人： Brother Industries Ltd , ブラザー工業株式会社
发明人： FUJINO HITOSHI , NAKAMURA YOSHIFUMI , OMINATO HIROYUKI , YUKAWA HIROKI
IPC分类号： G02B26/10 , G02B13/00 , G02B13/18 , G02B26/12 , H04N1/113
CPC分类号： G02B27/0031 , B41J2/471 , G02B3/04 , G02B13/0005 , G02B26/125
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical apparatus that exposes a photoreceptor etc., with high definition although lenses are easy to be fabricated.SOLUTION: A pair of lens surfaces L1 and L2 of a third optical element have aspherical surface shapes in a main scanning direction, vary in curvature in a sub-scanning direction continuously and symmetrically from on an optical axis outward in the main scanning direction, and shapes of the lens surfaces L1 and L2 are symmetrical in the main scanning direction with respect to a sub-scanning plane including the optical axis. A first optical axis A1 defined as an optical axis of the incident-side lens surface L1 of a third optical element is inclined in the main scanning plane with respect to a normal line P1 extending from a scanning center on a target surface to be scanned and an intersection point O1 between the first optical axis A1 and the incident-side lens surface L1 is shifted with respect to the normal line P1, and that a second optical axis A2 defined as an optical axis of the emission-side lens surface L2 is inclined in the main scanning plane with respect to the first optical axis A1 and an intersection point O2 between the second optical axis A2 and the emission-side lens surface L2 is shifted with respect to the first optical axis A1.
摘要翻译：要解决的问题：为了提供一种以高清晰度曝光感光体等的扫描光学装置，尽管透镜易于制造。解决方案：第三光学元件的一对透镜表面L1和L2具有非球面形状主扫描方向在副扫描方向上沿主扫描方向向外的光轴连续对称地变化，并且透镜表面L1和L2的形状在主扫描方向上相对于子扫描方向对称，包括光轴的扫描平面。被定义为第三光学元件的入射侧透镜表面L1的光轴的第一光轴A1相对于从要扫描的目标表面上的扫描中心延伸的法线P1在主扫描平面中倾斜，第一光轴A1和入射侧透镜面L1之间的交点O1相对于法线P1移动，并且被定义为发射侧透镜面L2的光轴的第二光轴A2倾斜在相对于第一光轴A1的主扫描平面中，并且第二光轴A2和发射侧透镜表面L2之间的交点O2相对于第一光轴A1偏移。

2. 发明专利

JP2011215286A Scanning optical apparatus 审中-公开
标题翻译：扫描光学装置
公开(公告)号：JP2011215286A
公开(公告)日：2011-10-27
申请号：JP2010082068
申请日：2010-03-31
申请人： Brother Industries Ltd , ブラザー工業株式会社
发明人： FUJINO HITOSHI , OMINATO HIROYUKI , NAKAMURA YOSHIFUMI , YUKAWA HIROKI
IPC分类号： G02B26/10 , H04N1/113
CPC分类号： B41J2/471 , G02B3/04 , G02B13/0005 , G02B26/125 , G02B27/0031
摘要： PROBLEM TO BE SOLVED: To suppress jitters more securely while increasing flexibility of designing of lenses.SOLUTION: A scanning optical apparatus is equipped with: a light source 1; a first optical element (coupling lens 2) configured to convert light emitted from the light source 1 into a beam of light; a second optical element (cylindrical lens 4) configured to convert the beam of light having passed through the first optical element into a long linear image extending in a main scanning direction; a deflecting mirror (polygon mirror 5) configured to deflect the beam of light having passed through the second optical element in the main scanning direction; and a third optical element (fθ lens 6) configured to convert the beam of light having been deflected by the deflecting mirror into a spot-like image and focus it on a target surface to be scanned. The third optical element comprises a single lens having a pair of opposite lens surfaces, and each of the pair of lens surfaces has an aspheric shape in a main scanning plane to satisfy the formula 4.
摘要翻译：要解决的问题：在增加透镜设计的灵活性的同时更牢固地抑制抖动。解决方案：扫描光学装置配备有：光源1; 第一光学元件（耦合透镜2），被配置为将从光源1发射的光转换为光束; 第二光学元件（柱面透镜4），被配置为将通过第一光学元件的光束转换成沿主扫描方向延伸的长线性图像; 偏光镜（多面镜5），被配置为使主扫描方向上穿过第二光学元件的光束偏转; 以及第三光学元件（fθ透镜6），其被配置为将由偏转镜反射的光束转换为点状图像，并将其聚焦在待扫描的目标表面上。第三光学元件包括具有一对相反透镜表面的单透镜，并且该一对透镜表面中的每一个在主扫描平面中具有非球面形状以满足公式4。

3. 发明专利

JP2011212924A Lens mold manufacturing method 审中-公开
标题翻译：镜头模具制造方法
公开(公告)号：JP2011212924A
公开(公告)日：2011-10-27
申请号：JP2010082077
申请日：2010-03-31
申请人： Brother Industries Ltd , ブラザー工業株式会社
发明人： NAKAMURA YOSHIFUMI , FUJINO HITOSHI
IPC分类号： B29C33/38 , B29L11/00 , G02B3/00
摘要： PROBLEM TO BE SOLVED: To provide a method for practically and easily manufacturing a high-accuracy lens mold.SOLUTION: The method includes: a first step for preparing a primary mold MA to form a predetermined cavity; a second step for molding a primary prototype molded lens 1A by the primary mold MA, measuring at least one lens surface shape of the primary prototype molded lens 1A, and determining shrinkage factors m, mof the primary prototype molded lens 1A regarding x and y directions; a third step for calculating a release amount e(x, y) being a difference about a z direction between the at least one lens surface shape and a corresponding molding surface shape of the primary mold MA as e(x, y)=F(x, y)-f(m*x, m*y), and calculating a lens molding surface shape F'(x, y) of a secondary mold as F'(x, y)=f'(m*x, m*y)+e(x, y); and a fourth step for correcting the primary mold on the basis of the lens molding surface shape F'(x, y) of the secondary mold so as to form the secondary mold.
摘要翻译：要解决的问题：提供一种用于实际上容易地制造高精度透镜模具的方法。解决方案：该方法包括：第一步骤，用于制备形成预定腔的初级模具MA; 第一步骤，通过第一模具MA模制初级原型模制透镜1A，测量初级原型模制透镜1A的至少一个透镜表面形状，以及确定初始原型模制透镜1A关于x和y方向的收缩因子m ; 用于计算作为第一模具MA的至少一个透镜表面形状和相应的模制表面形状之间的关于az方向的差的释放量e（x，y）的第三步骤，e（x，y）= F（x ，y）-f（m * x，m * y），并且计算二次模具的透镜成型表面形状F'（x，y）为F'（x，y）= f'（m * x，m * y）+ e（x，y）; 以及第四步骤，用于基于二次模具的透镜成型表面形状F'（x，y）校正第一模具以形成二次模具。

4. 发明专利

JP2013200363A Optical scanner, and image forming apparatus 有权
标题翻译：光学扫描仪和图像形成装置
公开(公告)号：JP2013200363A
公开(公告)日：2013-10-03
申请号：JP2012067246
申请日：2012-03-23
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： FUJINO HITOSHI , NAKAMURA YOSHIFUMI
IPC分类号： G02B26/10 , B41J2/44 , G03G15/04 , H04N1/113
CPC分类号： G02B26/124
摘要： PROBLEM TO BE SOLVED: To provide an optical scanner and an image forming apparatus capable of obtaining excellent performance in use wavelength even by evaluation in wavelength different from the use wavelength.SOLUTION: An optical scanner is configured so that when a diffraction lens structure of an anamorphic condensing lens 22 in an incident optical system is defined as φ(h)=M(P2*h+P4*h+...), (where a Pn is a coefficient of a term of order n (where n is even) of height h and an M is diffraction order), an effective diameter hmmax [mm] in a main scan direction, focal distance fm [mm] in the main scan direction, and a numerical aperture NAm in the main scan direction satisfy -216≤P2≤-49, 1100≤P4*(hmmax)/(fm*NAm)≤3800, and 10≤fm≤35, and wave aberration WFE1 [λ rms] at first wave length λ1 [nm] satisfies WFE1≤0.01.
摘要翻译：要解决的问题：提供一种即使通过不同于使用波长的波长评估也能够获得优异的使用波长性能的光学扫描仪和图像形成装置。解决方案：光学扫描器被配置为使得当衍射透镜结构入射光学系统中的变形聚光透镜22被定义为＆phgr;（h）= M（P2 * h + P4 * h + ...），（其中Pn是阶数n的项的系数（其中n是偶数）的高度h，M为衍射级），主扫描方向的有效直径hmmax [mm]，主扫描方向的焦距fm [mm]，主扫描方向的数值孔径NAm满足-216 ≤P2≤-49,1100≤P4*（hmmax）/（fm * NAm）≤3800，10≤fm≤35，第一波长λ1[nm]的波像差WFE1 [λrms]满足WFE1≤0.01。

5. 发明专利

JP2012008373A Scanning optical device 有权
标题翻译：扫描光学器件
公开(公告)号：JP2012008373A
公开(公告)日：2012-01-12
申请号：JP2010144795
申请日：2010-06-25
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： OMINATO HIROYUKI , FUJINO HITOSHI , NAKAMURA YOSHIFUMI , YUKAWA HIROKI
IPC分类号： G02B26/12 , B41J2/44 , G02B13/00 , G02B13/18 , H04N1/113
CPC分类号： G02B26/125
摘要： PROBLEM TO BE SOLVED: To expose an excellent image by reducing a curvature of image surface.SOLUTION: A scanning optical device 10 includes a single fθ lens 6 which uses a beam deflected by a polygon mirror 5 to form an image in the form of spot on a scanned surface 9A. Where an angle formed between a first optical axis A1 on an incidence-side lens surface L1 and a second optical axis A2 on an emission-side lens surface L2 within a main scanning surface is β2 [deg], an angle formed between the first optical axis A1 and a standard emitting line DL within the main scanning surface is β1 [deg] and a shift amount when an intersection O2 between the second optical axis A2 and the emission-side lens surface L2 shifts to the first optical axis A1 within the main scanning surface is D2 [mm], the fθ lens 6 satisfies -0.6
摘要翻译：要解决的问题：通过减小图像表面的曲率来曝光优异的图像。解决方案：扫描光学装置10包括单个fθ透镜6，其使用由多面镜5偏转的光束在扫描表面9A上形成斑点形式的图像。在入射侧透镜面L1的第一光轴A1与主扫描面的发光侧透镜面L2的第二光轴A2之间形成的角度为β2[deg]时，形成在第一光学轴A1和主扫描面内的标准发光线DL为β1[deg]，第二光轴A2与发射侧透镜面L2之间的交点O2向主体内的第一光轴A1移动时的偏移量扫描面为D2 [mm]，fθ透镜6满足-0.6 <β2≤-0.1，也满足-0.5 <β1<0和-0.1

6. 发明专利

JP2014066951A Scanning optical device 审中-公开
标题翻译：扫描光学器件
公开(公告)号：JP2014066951A
公开(公告)日：2014-04-17
申请号：JP2012213522
申请日：2012-09-27
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： HOSHINO HIDETAKA , NAKAMURA YOSHIFUMI , FUJINO HITOSHI
IPC分类号： G02B26/10
CPC分类号： G02B27/0075 , G02B5/1895 , G02B26/12 , G02B26/125
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical device that can suppress an imaging plane shift by a temperature change.SOLUTION: When A(Z)=(3.532×10)Z+3023Z+0.7010, B(Z)=(5.719×10)Z+4169Z+0.7678, C(Z)=(1.727×10)Z+3244Z+0.4217, D(Z)=(1.373×10)Z+3232Z+1.224, g1(fi)=fi{D(Z)-B(Z)}/20-0.5D(Z)+1.5B(Z) and g2(fi)=fi{C(Z)-D(Z)}/20-0.5C(Z)+1.5A(Z), within a range of a focal length fi=10 to 30 mm, a ratio φnM/φdM of refractive power φnM in a main scanning direction of a diffraction lens 2 and diffractive power φdM therein satisfies g2(fi)≤φnM/φdM≤g1(fi), and a ratio φnS/φdS of refractive power φnS in a sub-scanning direction of the diffraction lens 2 and diffractive power φdS therein satisfies φnS/φdS
摘要翻译：（A）（Z）=（3.532×10）Z + 3023Z + 0.7010，B（Z）=（5.719× 10）Z + 4169Z + 0.7678，C（Z）=（1.727×10）Z + 3244Z + 0.4217，D（Z）=（1.373×10）Z + 3232Z + 1.224，g1（fi）= fi {D ）-B（Z）} / 20-0.5D（Z）+ 1.5B（Z）和g2（fi）= fi {C（Z）-D（Z）} / 20-0.5C（Z）+ 1.5A （Z），在焦距f = 10〜30mm的范围内，衍射透镜2的主扫描方向的折射力＆phgr; nM的比值＆phgr; nM和nM在其中的衍射光焦度满足g2（fi）≤＆phgr; nM /＆phgr;dM≤g1（fi），以及衍射透镜2的副扫描方向上的屈光度＆sgr的nS /＆phgr; dS的折射率＆phgr ;其中dS满足＆phgr; nS /＆phgr; dS <1.3。

7. 发明专利

JP2014052572A Scanning optical device 审中-公开
标题翻译：扫描光学器件
公开(公告)号：JP2014052572A
公开(公告)日：2014-03-20
申请号：JP2012198121
申请日：2012-09-10
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： FUJINO HITOSHI , OMINATO HIROYUKI , NAKAMURA YOSHIFUMI
IPC分类号： G02B26/12 , B41J2/44 , G02B13/00 , G02B13/18 , H04N1/113
CPC分类号： G02B26/125
摘要： PROBLEM TO BE SOLVED: To expose an excellent image by making a curvature of field small.SOLUTION: A scanning optical device 10 includes a single fθ lens 6 that causes a flux of light deflected by a polygon mirror 5 to be imaged on a scanned surface 51A in a spot form, and let an angle formed in a main scanning surface between a first optical axis A1 of an incident-side lens surface L1 and a reference emergent line DL be β1[deg], an angle formed in a main scanning surface between the first optical axis A1 and a second optical axis A2 of an emergent-side lens surface L2 be β2[deg], a shift amount when an intersection O1 of the first optical axis A1 and the incident-side lens surface L1 shifts to the reference emergent line DL in the main scanning surface be D1[mm] and a shift amount when an intersection O2 of the second optical axis A2 and the emergent-side lens surface L2 shifts to the first optical axis A1 in the main scanning surface be D2[mm], the fθ lens 6 is configured to satisfy all of -0.59
摘要翻译：要解决的问题：通过使曲率变小而使优异的图像曝光。解决方案：扫描光学装置10包括单个图像; 使由多面镜5偏转的光束的光束6以斑点形式成像在扫描面51A上，使入射侧透镜面的第一光轴A1之间的主扫描面形成的角度 L1和参考出线DL为1 [deg]，在出射侧透镜表面L2的第一光轴A1和第二光轴A2之间的主扫描表面中形成的角度为2°，当第一光轴A1和入射侧透镜表面L1的交点O1移动到主扫描表面中的参考出射线DL时的偏移量为D1 [mm]，当第二光轴光轴A2和出射侧透镜表面L2移动到主扫描表面中的第一光轴A1为D2 [mm]，f＆透镜6被配置为满足-0.59 <＆bgr;1≤0，-0.46 <＆bgr;2≤0.2，-0.6≤D1<0.43和-0.17≤D2≤0.16的全部。

8. 发明专利

JP2013076807A Scanning optical device 有权
标题翻译：扫描光学器件
公开(公告)号：JP2013076807A
公开(公告)日：2013-04-25
申请号：JP2011216081
申请日：2011-09-30
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： HOSHINO HIDETAKA , FUJINO HITOSHI , NAKAMURA YOSHIFUMI
IPC分类号： G02B26/10 , B41J2/44 , G02B5/32 , G02B13/08 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical device which is compensated for temperature and has less jitter.SOLUTION: A scanning lens (fθ lens 6) satisfies 0.2≤1-s'/fm≤0.5 where s' is a distance from an image-side principal point to an image point in a main scanning direction of the scanning lens and fm is a focal length in the main scanning direction of the scanning lens. An incident optical system (diffraction lens 2) comprises a lens including a rotationally symmetrical diffracting surface and an anamorphic refracting surface and satisfies 10≤fi≤22 where fi [mm] is a focal length in the main scanning direction. A ratio mM/Ms where mM is a lateral magnification in the main scanning direction of an entire optical system and mS is a lateral magnification in a sub-scanning direction of the entire optical system satisfies mM/mS≥1.38. A ratio φn/φd where φn is a refracting power in the main scanning direction and φd is a diffracting power in the main scanning direction of the incident optical system satisfies g2(fi)≤φn/φd≤g1(fi), g1(fi)=0.015fi+1.073, and g2(fi)=-0.01fi+1.184.
摘要翻译：要解决的问题：提供补偿温度并具有较小抖动的扫描光学装置。＆lt; P＆gt;解决方案：扫描透镜（fθ透镜6）满足0.2≤1-s'/fm≤0.5，其中s'是从扫描透镜的主扫描方向上的图像侧主点到图像点的距离 fm是扫描透镜的主扫描方向的焦距。入射光学系统（衍射透镜2）包括具有旋转对称衍射面和变形折射面的透镜，并且满足10≤fi≤22，其中fi [mm]是主扫描方向上的焦距。其中mM是整个光学系统的主扫描方向的横向放大率，mS是整个光学系统的副扫描方向的横向放大率的比率mM / Ms满足mM /mS≥1.38。其中φn是主扫描方向的折射率，φd是入射光学系统的主扫描方向的衍射光的比率φn/φd满足g2（fi）≤φn/φd≤g1（fi），g1（fi ）= 0.015fi + 1.073，g2（fi）= -0.01fi + 1.184。版权所有（C）2013，JPO＆INPIT

9. 发明专利

JP2013072949A Scanning optical device 审中-公开
标题翻译：扫描光学器件
公开(公告)号：JP2013072949A
公开(公告)日：2013-04-22
申请号：JP2011210944
申请日：2011-09-27
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： NAKAMURA YOSHIFUMI , FUJINO HITOSHI , HOSHINO HIDETAKA
IPC分类号： G02B26/10 , B41J2/44 , G02B26/12
CPC分类号： G02B26/124 , G02B27/0037
摘要： PROBLEM TO BE SOLVED: To provide a scanning optical device which is made compact and achieves good temperature compensation.SOLUTION: A scanning optical device 10 includes: a light source (semiconductor laser 1); deflecting means (polygon mirror 5) which deflects a light beam from the light source in a main scanning direction; an incident optical system 11 which is provided between the light source and the deflecting means to shape the light beam from the light source into a substantially parallel beam in the main scanning direction and to image the light beam in the vicinity of the deflecting means in a sub-scanning direction; and a scanning lens (fθ lens 6) which images the light beam deflected by the deflecting means, like a spot on a surface 9A to be scanned. The incident optical system 11 comprises at least one lens having at least one diffracting surface and at least one refracting surface and satisfies φnS/φdS
摘要翻译：要解决的问题：提供一种紧凑的扫描光学装置，并实现良好的温度补偿。解决方案：扫描光学装置10包括：光源（半导体激光器1）; 偏转装置（多面镜5），其使来自光源的光束在主扫描方向上偏转; 入射光学系统11，设置在光源和偏转装置之间，以将来自光源的光束成形为在主扫描方向上的基本上平行的光束，并且在偏转装置附近对光束进行成像副扫描方向; 以及像偏转装置偏转的光束一样的扫描透镜（fθ透镜6），像待扫描的表面9A上的点。入射光学系统11包括具有至少一个衍射表面和至少一个折射表面的至少一个透镜，并且满足φnS/φdS<0，其中φnS是副扫描方向上的屈光力，φdS是衍射光焦度。版权所有（C）2013，JPO＆INPIT

10. 发明专利

JP2012098392A Method for manufacturing scanning optical device and adjustment amount arithmetic device used in manufacturing scanning optical device 有权
标题翻译：用于制造扫描光学装置的方法和用于制造扫描光学装置的调整量算术装置
公开(公告)号：JP2012098392A
公开(公告)日：2012-05-24
申请号：JP2010244313
申请日：2010-10-29
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： NAKAMURA YOSHIFUMI
IPC分类号： G02B26/10 , B41J2/44 , H04N1/113
摘要： PROBLEM TO BE SOLVED: To efficiently assemble a scanning optical device.SOLUTION: The method comprises: an inspection step in which focal depth ends in a main scanning direction and a sub-scanning direction of a scanning lens are obtained by inspecting the scanning lens; an adjustable amount arithmetic step in which adjustable amounts Zml, Zmu, Zsl and Zsu are calculated from the focal depth ends obtained by the inspection step for the focal depth ends; an adjustment amount determining step (S6) in which if Zml
摘要翻译：要解决的问题：有效地组装扫描光学装置。解决方案：该方法包括：通过检查扫描透镜获得其中焦深度在扫描透镜的主扫描方向和副扫描方向上结束的检查步骤; 可调量算术步骤，其中通过用于焦深端的检查步骤获得的焦深端计算可调量的Zml，Zmu，Zsl和Zsu; 如果满足Zml

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