公开(公告)号：US06263168B1

公开(公告)日：2001-07-17

申请号：US09407995

申请日：1999-09-29

申请人： Sachio Hasushita ,  Hiroyasu Ozaki

发明人： Sachio Hasushita ,  Hiroyasu Ozaki

IPC分类号： G03B1306

CPC分类号： G02B25/001 ,  G03B13/06

摘要： An eyepiece optical system, which is used in a single lens reflex camera having a penta mirror, includes a negative first single lens element, a positive second single lens element, and a negative third single lens element, in this order from the penta mirror; wherein the second single lens element is a diopter adjusting lens element which is adjustable along the optical axis; and the following conditions are satisfied: −2

摘要翻译： 用于具有五面镜的单镜头反光相机中的目镜光学系统，从五面镜依次包括负第一单透镜元件，正第二单透镜元件和负第三单透镜元件; 其中所述第二单透镜元件是可沿着所述光轴调节的屈光度调节透镜元件; 并且满足以下条件：其中，f1表示第一单个透镜元件的焦距; f2表示第二单个透镜元件的焦距; f3表示第三单个透镜元件的焦距; andfe表示当屈光度为-1.0时整个目镜光学系统的焦距。

公开(公告)号：US5864724A

公开(公告)日：1999-01-26

申请号：US814465

申请日：1997-03-10

申请人： Hiroyasu Ozaki ,  Shigeru Morishita ,  Kazunori Takahashi

发明人： Hiroyasu Ozaki ,  Shigeru Morishita ,  Kazunori Takahashi

IPC分类号： G03B17/24

CPC分类号： G03B17/245 ,  G03B2217/243

摘要： A data printing device comprises a light emitting device that includes a plurality of light emitting elements, and an imaging optical system for forming light points on the film which correspond to the light emitting elements. The imaging optical system includes at least one imaging lens and at least three reflecting surfaces that reflect the light from the light emitting device to bend the optical path along an arc of a cylindrical wall of a film space, such as a spool chamber or a cartridge chamber.

摘要翻译： 数据打印装置包括包括多个发光元件的发光装置和用于在薄膜上形成与发光元件相对应的光点的成像光学系统。 成像光学系统包括至少一个成像透镜和反射来自发光器件的光的至少三个反射表面，以沿着膜空间的圆柱形壁（例如卷轴室或墨盒）弯曲光路 房间。