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公开(公告)号：US20110242634A1
公开(公告)日：2011-10-06
申请号：US13051876
申请日：2011-03-18
IPC分类号： G02B26/10
CPC分类号： B41J2/471 , G02B3/04 , G02B13/0005 , G02B26/125 , G02B27/0031
摘要： A scanning optical apparatus includes: a light source; a first optical element configured to convert light emitted from the light source into a beam of light; a second optical element configured to convert the beam of light having passed through the first optical element into a linear image extending in a main scanning direction; a deflecting mirror configured to deflect the beam of light having passed through the second optical element in the main scanning direction; and a third optical element 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 is a single lens having a pair of opposite lens surfaces, and each of the pair of lens surfaces is aspheric in a main scanning plane to satisfy the formula: ( 1 - S k ( y 1 , y 2 ) f t ( y 1 , y 2 ) ) · h ( y 1 , y 2 )
摘要翻译： 扫描光学装置包括：光源; 第一光学元件，被配置为将从所述光源发射的光转换成光束; 第二光学元件，被配置为将通过所述第一光学元件的光束转换成沿主扫描方向延伸的线性图像; 偏转镜，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，被配置为将已经被偏转镜偏转的光束转换成斑点状图像，并将其聚焦在待扫描的目标表面上。 第三光学元件是具有一对相反透镜表面的单透镜，并且该对透镜表面中的每一个在主扫描平面中是非球面的，以满足公式：（1-S k（y 1，y 2） （y 1，y 2））·h（（y 1，y 2））
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公开(公告)号：US20110317234A1
公开(公告)日：2011-12-29
申请号：US13072717
申请日：2011-03-27
IPC分类号： G02B26/12
CPC分类号： G02B26/125
摘要： In a scanning optical apparatus including a single lens configured to convert a beam deflected by a polygon mirror into a spot-like image on a scanned surface, an angle β2 [deg] formed in a main scanning plane between the first optical axis and the second optical axis of the opposite lens surfaces of the lens satisfies the condition of −0.6
摘要翻译： 在包括配置成将由多面镜偏转的光束转换为被扫描表面上的斑点状图像的单个透镜的扫描光学装置中，在第一光轴和第二光轴之间的主扫描平面中形成的角度＆ 透镜的相对透镜表面的第二光轴满足条件-0.6 <＆bgr; 2＆nlE; -0.1，并且满足条件-0.5 <＆bgr1 <0和-0.1
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公开(公告)号：US20110242633A1
公开(公告)日：2011-10-06
申请号：US13072693
申请日：2011-03-26
IPC分类号： G02B26/12
CPC分类号： G02B27/0031 , B41J2/471 , G02B3/04 , G02B13/0005 , G02B26/125
摘要： In a scanning optical apparatus, a third optical element is configured such that a first optical axis defined as an optical axis of an incident-side lens surface of the third optical element is inclined in a main scanning plane with respect to a normal line extending from a scanning center on a target surface to be scanned and an intersection point between the first optical axis and the incident-side lens surface is shifted with respect to the normal line, and that a second optical axis defined as an optical axis of an emission-side lens surface is inclined in the main scanning plane with respect to the first optical axis and an intersection point between the second optical axis and the emission-side lens surface is shifted with respect to the first optical axis.
摘要翻译： 在扫描光学装置中，第三光学元件被配置为使得被定义为第三光学元件的入射侧透镜表面的光轴的第一光轴相对于从第二光学元件延伸的法线在主扫描平面中倾斜 要扫描的目标表面上的扫描中心和第一光轴与入射侧透镜表面之间的交点相对于法线移动，并且被定义为发射 - 侧面透镜表面相对于第一光轴在主扫描平面中倾斜，并且第二光轴和发射侧透镜表面之间的交点相对于第一光轴移动。
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公开(公告)号：US20120002261A1
公开(公告)日：2012-01-05
申请号：US13072747
申请日：2011-03-27
申请人： Hiroki YUKAWA , Hiroyuki OMINATO , Hitoshi FUJINO
发明人： Hiroki YUKAWA , Hiroyuki OMINATO , Hitoshi FUJINO
IPC分类号： G02B26/10
CPC分类号： G02B26/125
摘要： In a scanning optical apparatus, light emitted from each of a plurality of light sources is converted by a first optical element into a beam of light, which in turn is converted by a second optical element into a linear image extending in a main scanning direction incident on a deflecting mirror at which the beams of light are deflected in the main scanning direction. A third optical element configured to convert the beams from the deflecting mirror into spot-like images is a single lens, and each of opposite lens surfaces thereof has a curvature in a sub-scanning direction varying continuously from a position corresponding to an optical axis thereof outward in the main scanning direction in such a manner that MTF values in a sub-scanning direction of an image formed on the scanned surface vary less with image height.
摘要翻译： 在扫描光学装置中，从多个光源中的每一个发射的光被第一光学元件转换成光束，光束又由第二光学元件转换成沿主扫描方向入射的线性图像 在偏转镜上，其中光束在主扫描方向上偏转。 被配置为将来自偏转镜的光束转换为点状图像的第三光学元件是单个透镜，并且其每个相对的透镜表面具有在从与其光轴对应的位置连续变化的副扫描方向上的曲率 以主扫描方向向外，使得形成在扫描表面上的图像的副扫描方向上的MTF值随图像高度变化较小。
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