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1. 发明授权

US5345282A Foldable optical apparatus 失效
标题翻译：可折叠光学装置
公开(公告)号：US5345282A
公开(公告)日：1994-09-06
申请号：US45232
申请日：1993-03-23
申请人： Seimei Ushiro , Bunsuke Emura
发明人： Seimei Ushiro , Bunsuke Emura
IPC分类号： G03B21/132 , G03B21/30 , G03B21/14
CPC分类号： G03B21/30 , G03B21/132
摘要： An optical apparatus, e.g. a foldable overhead projector of the reflection type, includes a base table, whereon original material is placed on a Fresnel mirror. A projector head forms an image of the original material. A stand is swung on the base table. The stand, when folded, overlies a control portion of the Fresnel mirror. The projector head is vertically swingable on a distal end of the stand. A stand locking lid is swingably mounted on the stand distal end. Retaining claws are formed at a front of the locking lid. Receiving recesses in the base table retain the retaining claws, and keep the stand folded. The locking lid has a manually pullable edge, which is pulled to disengage the retaining claws from the receiving recesses. The projector is thus erected and folded easily, because it is openable quickly for erection. A pair of plates are swingable beside the base table between open and closed positions, to cover lateral margins of the Fresnel mirror when closed, and lie flush with the Fresnel mirror when opened. A storage chamber in the base table contains a plurality of original materials, and is covered by the vertically swingable Fresnel mirror. Two rollers under the base table and close to a front edge facilitate transportation of the base table as raised in a position opposite to the rollers.
摘要翻译：光学装置，例如反射型折叠式高架投影仪包括一个底座，原始物品放置在菲涅耳镜上。投影仪头部形成原始图像。一张桌子摆在桌子上。折叠时，支架位于菲涅耳镜的控制部分。投影头在支架的远端可垂直摆动。支架锁定盖可摆动地安装在支架远端。保持爪形成在锁定盖的前部。底座中的接收凹槽保持保持爪，并保持支架折叠。锁定盖具有可手动拉动的边缘，其被拉动以将保持爪从接收凹部脱离。因此，投影机可以很容易地竖立和折叠，因为它可以快速打开以进行勃起。一对板可以在打开和关闭位置之间的基台旁摆动，以便在关闭时覆盖菲涅耳镜的侧边缘，并在打开时与菲涅耳镜面齐平。基座中的存储室包含多个原始材料，并被垂直摆动的菲涅耳镜覆盖。底座下方两个靠近前缘的滚轮有助于基座台在与滚轮相对的位置上升高。

2. 发明授权

US4921343A Overhead projector 失效
标题翻译：难搞的项目
公开(公告)号：US4921343A
公开(公告)日：1990-05-01
申请号：US245983
申请日：1988-09-14
申请人： Seimei Ushiro , Bunsuke Emura
发明人： Seimei Ushiro , Bunsuke Emura
IPC分类号： G03B21/132
CPC分类号： G03B21/132 , Y10S353/03
摘要： A variable power reflectory type overhead projector for forming a projected luminous beam by lighting a reflecting mirror from the projecting lens side. A transparent film-to-be-projected support is provided between a regular position of the film to be projected and the projecting lens, and an auxiliary lens is included for focusing the projecting lens on the support.
摘要翻译：一种用于通过从投影透镜侧照亮反射镜来形成投射的发光束的可变电源反射型顶置投影仪。在要投影的胶片的规则位置和投影透镜之间提供透明的投影片，并且包括用于将投影透镜聚焦在支撑件上的辅助透镜。

3. 发明授权

US4776688A Overhead projector 失效
标题翻译：难搞的项目
公开(公告)号：US4776688A
公开(公告)日：1988-10-11
申请号：US8536
申请日：1987-01-29
申请人： Seimei Ushiro , Bunsuke Emura
发明人： Seimei Ushiro , Bunsuke Emura
IPC分类号： G03B21/132 , G03B21/00
CPC分类号： G03B21/132
摘要： An overhead projector having a stationary main body including a Fresnel plate, a projection unit, and a swingable member for supporting the projection unit and swingably secured to the main body. The overhead projector comprises one way clutch means through which the swingable member is secured to the main body and which is adapted to limit the swinging motion of the swingable member towards the main body.
摘要翻译：一种具有固定主体的高架投影仪，包括菲涅耳板，投影单元和用于支撑投影单元并可摆动地固定到主体的摆动构件。高架投影仪包括单向离合器装置，摆动构件通过该单向离合装置固定到主体，并且适于限制摆动构件朝向主体的摆动运动。

4. 发明授权

US4588271A Overhead projector 失效
标题翻译：难搞的项目
公开(公告)号：US4588271A
公开(公告)日：1986-05-13
申请号：US645965
申请日：1984-08-31
申请人： Bunsuke Emura
发明人： Bunsuke Emura
IPC分类号： G03B21/132 , G03B21/06
CPC分类号： G03B21/132
摘要： A portable overhead projector wherein characters, a picture and the like drawn on a transparent sheet rested on a horizontally supported stage can be projected onto a screen or the like, and having a safety device in which a projection unit can avoid impinging upon a mirror-Fresnel plate, thereby preventing damage to it. This safety device features a lock mechanism for preventing projection unit supports from rotating unless the projection unit is folded toward the supports. Furthermore, the overhead projector has a rotatable support for one side of the mirror-Fresnel plate whereby the mirror-Fresnel plate is held horizontally during projection, and is inclined during housing, whereby the projection unit is housed in a space formed by the inclining of the mirror-Fresnel plate.
摘要翻译：将其放置在水平支撑台上的透明片上绘制的字符，图像等的便携式高架投影仪可以投影到屏幕等上，并且具有安全装置，其中投影单元可以避免碰撞在镜面上，菲涅尔板，从而防止损坏。该安全装置具有用于防止投影单元支撑件旋转的锁定机构，除非投影单元朝向支撑件折叠。此外，高架投影仪具有用于反射镜 - 菲涅尔板的一侧的可旋转支撑件，由此在投影期间将镜面菲涅尔板水平地保持，并且在外壳期间倾斜，由此投影单元容纳在由斜面镜面菲涅耳板。

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