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1. 发明专利

JPS60159818A BEAM SHAPING OPTICAL SYSTEM 失效
公开(公告)号：JPS60159818A
公开(公告)日：1985-08-21
申请号：JP1581784
申请日：1984-01-31
申请人： ASAHI OPTICAL CO LTD
发明人： MARUYAMA KOUICHI
IPC分类号： G02B13/08 , G02B27/09
摘要： PURPOSE:To obtain a parallel beam shaping optical system which has a short overall length and is easy to produce, by arranging the first plano-concave cylindrical lens, the second plano-concave cylindrical lens, and a plano-convex cylindrical lens having the convex directed to the exit side in order from the incidence side and directing one concave to the exit side at least. CONSTITUTION:One face of each of three cylindrical lenses is made plane, and cylinder alignment is not performed at a lens working time, and generation of aberrations is held down to a minimum by adjustment for lens assembling. Since the height of entrance to a negative lens is lower than that to a position lens, the power is made higher to increase the generation quantity of aberrations if only one plano-concave cylindrical lens is used; and therefore, two plano-concave cylindrical lenses are used to distributed the power, and thereby, generation of aberrations is held down. One of two concaves is directed to the exit side at least. If two concaves are directed to the incidence side together, negative wavefront aberration generated on concaves is too small to compensate.

2. 发明专利

JPS59214008A Telephoto lens 失效
标题翻译：电视镜头
公开(公告)号：JPS59214008A
公开(公告)日：1984-12-03
申请号：JP8819583
申请日：1983-05-19
申请人： Asahi Optical Co Ltd
发明人： MARUYAMA KOUICHI
IPC分类号： G02B13/02
CPC分类号： G02B13/02
摘要： PURPOSE:To prevent deterioration in aberration when photographic distance is short by allowing an optical system which consists of three lens groups having a positive, a positive and a negative, and a negative refracting power successively from an object side to meet specific requirements. CONSTITUTION:The lens system consists of the 1st lens group with the positive refracting power, the 2nd lens group of a positive lens having a convex surface of large curvature on the image side and negative lens having a concave surface of large curvature on the object side, and the 3rd lens group having the negative refracting power. When the lens system is focused on a short-distance subject, the lenses are so moved as to increase the gap between the 2nd and the 3rd lens groups, and inequalities I -IV hold. In the inequalitieis, f, f1, and f12 are the focal length of the whole system, the focal length of the 1st lens group, and the total focal length of the 1st and the 2nd lens group, and (n), R, and phi are the refractive index of the negative lens in the 2nd group, radius of curvature of the large-curvature surface of the 2nd lens group, and refractive index (phi=(n-1/R) of the negative lens in the 2nd group; and (l) is the distance from the 2nd principal point of the 1st lens group to the large-curvature concave surface of the 2nd lens group.
摘要翻译：目的：为了防止摄影距离短的像差的劣化，通过允许由具有正，正，负的三个透镜组的光学系统和从物体侧连续的负折射力来满足特定要求。构成：透镜系统由具有正折射力的第一透镜组，正面透镜的第二透镜组在像侧具有大曲率的凸表面，负透镜在物侧上具有大曲率的凹面和具有负折射力的第三透镜组。当透镜系统聚焦在短距离物体上时，透镜被移动以增加第二和第三透镜组之间的间隙，并且不等式I -IV保持。在不等式中，f，f1和f12是整个系统的焦距，第一透镜组的焦距和第一和第二透镜组的总焦距，以及（n），R和 phi是第二组中的负透镜的折射率，第二透镜组的大曲率面的曲率半径以及第二组中的负透镜的折射率（phi =（n-1 / R） ;（1）是从第1透镜组的第2主点到第2透镜组的大曲率凹面的距离。

3. 发明专利

JPS60191223A Beam shaping optical system 失效
标题翻译：光束形成光学系统
公开(公告)号：JPS60191223A
公开(公告)日：1985-09-28
申请号：JP4674884
申请日：1984-03-12
申请人： Asahi Optical Co Ltd
发明人： MARUYAMA KOUICHI
IPC分类号： G02B13/08 , G02B13/10 , G02B27/09
CPC分类号： G02B27/0972 , G02B13/10 , G02B27/09 , G02B27/0911
摘要： PURPOSE:To prevent deviation between optical axes of incidence-side and exit- side systems by eliminating faces, on which an incident light is incident vertically, when an optical system is used at such angle that the incident light and the exit light are parallel with each other. CONSTITUTION:The section of a beam shaping optical system on an XZ plane and that on an XY plane at the time, when this optical system is used in such direction that the beam width is reduced, are shown in the figure. When this optical system is used at such incidence angle that the incident light and the exit light are parallel with each other, the optical system has the beam width converting function in the Z direction, and the beam width is varied in the Y direction. The direction of the incident light is defined as the X direction, and the middle point in the Y direction of an effective aperture part is defined as the origin in the Y direction, and the incidence point by which one incident light and its exit light are put on one line in the XZ plane is defined as the origin of the X axis and the Z axis.
摘要翻译：目的：通过消除入射光垂直入射的面，防止入射侧和出射侧系统的光轴之间的偏移，当以使入射光和出射光平行的角度使用光学系统时彼此。规定：当该光学系统沿着使光束宽度减小的方向使用时，XZ平面上的光束整形光学系统和XY平面上的光束整形光学系统的部分如图所示。当这种光学系统以入射光和出射光彼此平行的入射角使用时，光学系统在Z方向上具有光束宽度转换功能，并且光束宽度在Y方向上变化。将入射光的方向定义为X方向，将有效开口部的Y方向的中点定义为Y方向的原点，将入射光及其出射光的入射点定义为 XZ平面上的一条线被定义为X轴和Z轴的原点。

4. 发明专利

JPS60175018A BEAM SHAPING OPTICAL SYSTEM 失效
公开(公告)号：JPS60175018A
公开(公告)日：1985-09-09
申请号：JP3088784
申请日：1984-02-20
申请人： ASAHI OPTICAL CO LTD
发明人： MARUYAMA KOUICHI
IPC分类号： G02B13/08 , G02B13/10 , G02B27/09
摘要： PURPOSE:To eliminate deviaton between optical axes of the incidence-side system and the exit-side system and to relax requirements of working and attaching precisions by providing such angle of incidence that the incident light and the exit light are parallel with each other when an incident optical beam is made incident at a certain angle on one face. CONSTITUTION:In the case shown in the figure, this optical system has a beam width conversion function in the Z direction when this optical system is used at such angle of incidence that the incident light and the exit light are parallel with each other. That is, this optical system has such angle of incidence that the incident light and the exit light are parallel with each other when the incident optical beam is made incident at a certain angle on one face. By this optical system, a beam shaping optical system is obtained without deviation between optical axes of the incidence-side system and the exit-side system neither severe requirements of working and attaching precisions with respect to spherical aberration.

5. 发明专利

JPS60229158A COMPUTER HAVING TAPE MEASURE 失效
公开(公告)号：JPS60229158A
公开(公告)日：1985-11-14
申请号：JP8479484
申请日：1984-04-25
申请人： ASAHI OPTICAL CO LTD
发明人： MARUYAMA KOUICHI , YAMAGATA MASAKAZU , NAKAE TAKEHIRO
IPC分类号： G06F15/02 , G01B7/00 , G01B7/02
摘要： PURPOSE:To input the drawing length of a tape measure directly to the constitutional part of a computer by calculating the drawing length by an arithmetic processing part built in a constitutional part. CONSTITUTION:A tape measure 8 and a roller 9 to be rotated without sliding in accordance with the movement of the tape measure 8 are incorporated in a body A to convert the rotation of the roller 9 into the drawing lenght of the tape measure. On the basis of a program in a storage device 2, the drawing length of the tape measure 8 is inputted to an operation control device 1 through a measure data reading part 5. Thus, processing equivalent to processing for a value inputted through another means, e.g. the storage of an input value in the storage device 2, the calculation of the input value, the display of the input value on a display device, or the output of the input value to a device connected to the external, can be attained.

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