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1. 发明授权

US4293185A Optical conversion assembly for objective camera lenses 失效
标题翻译：用于相机镜头的光学转换组件
公开(公告)号：US4293185A
公开(公告)日：1981-10-06
申请号：US106444
申请日：1979-12-26
申请人： Yasuo Yamazaki , Takeshi Egawa
发明人： Yasuo Yamazaki , Takeshi Egawa
IPC分类号： G02B7/14 , G02B21/00 , G02B23/00 , G02B25/00
CPC分类号： G02B23/00 , G02B25/001 , G02B7/14
摘要： An optical conversion attachment assembly for objective camera lenses is provided to convert a lens into a monocular optical device. A camera exchangeable lens can be detachably mounted on the barrel of an optical attachment having an erecting prism and an ocular system to vary the diopter power. The optical attachment further provides a device for automatically contacting and holding the diaphragm of the camera exchange lens at a maximum aperture opening.
摘要翻译：提供了一种用于客观照相机镜头的光学转换附件组件，用于将镜头转换为单眼光学装置。相机可更换镜头可拆卸地安装在具有直立棱镜和眼睛系统的光学附件的镜筒上，以改变屈光度。光学附件还提供了用于在最大孔径开口处自动接触和保持照相机更换镜片的光阑的装置。

2. 发明授权

US4278339A Pentagonal prism module for camera viewfinder 失效
标题翻译：用于相机取景器的五角棱镜模块
公开(公告)号：US4278339A
公开(公告)日：1981-07-14
申请号：US148596
申请日：1980-05-12
申请人： Isamu Uchida , Yasuo Yamazaki , Takeshi Egawa
发明人： Isamu Uchida , Yasuo Yamazaki , Takeshi Egawa
IPC分类号： G03B19/12 , G03B13/08
CPC分类号： G03B19/12
摘要： A pentagonal prism for use in a viewfinder of a single lens reflex camera makes use of total reflection of viewfinder light flux at effective optical path regions on its pair of roof surfaces. The prism constitutes a module together with a protection cover attachable thereto for protection of the roof surfaces. The cover is provided with a pair of roof walls accomodated to the roof surfaces of the prism and including recessed portions corresponding to the effective optical path regions on the roof surfaces and peripheral portions corresponding to portions on the roof walls out of the effective optical path regions. Upon attachment of the cover to the prism, the peripheral portions contact the portions on the roof surfaces out of the effective optical path regions and an air space which ensures the total reflection is left between the inner surfaces of the recessed portions and the effective optical path regions on the roof surfaces. A ghost may be prevented from occurring when the inner surfaces of the roof walls are black-frosted, black-ground or black-roughened for light absorption or when the roof walls are designed to intersect with one another at a ridge angle of less than 90.degree. .
摘要翻译：用于单镜头反光相机取景器的五棱镜利用其对对屋顶表面上有效光路区域的取景器光通量的全反射。棱镜与可附接到其上的保护盖一起构成模块，以保护屋顶表面。该盖设有一对屋顶壁，其与棱镜的屋顶表面相对应，并且包括对应于屋顶表面上的有效光路区域的凹陷部分和与有效光路区域之外的屋顶壁上的部分相对应的周边部分。在将盖子附接到棱镜时，周边部分接触有效光路区域之外的屋顶表面上的部分，并且确保在凹部的内表面和有效光路之间留下全反射的空气空间屋顶表面的区域。当屋顶壁的内表面被黑色磨砂，黑色或黑色粗糙化以用于光吸收时或者当屋顶壁被设计成以小于90°的脊角彼此相交时，可以防止发生鬼 DEG。

3. 发明授权

US4217044A Indicating devices for camera viewfinders 失效
标题翻译：指示相机取景器的设备
公开(公告)号：US4217044A
公开(公告)日：1980-08-12
申请号：US851975
申请日：1977-11-16
申请人： Keiji Yamazaki , Takeshi Egawa , Yasuo Yamazaki , Hiroshi Ueda
发明人： Keiji Yamazaki , Takeshi Egawa , Yasuo Yamazaki , Hiroshi Ueda
IPC分类号： G03B17/20
CPC分类号： G03B17/20
摘要： An indicating device for a camera, which includes a viewfinder and which is selectively settable to either an automatic diaphragm control mode or an automatic shutter speed control mode, enables selective observation of the f-number and the shutter speed scales in accordance with the selection of the exposure control modes. The f-number and shutter speed scales are provided on a common transparent scale plate which is interconnected with an exposure control mode selecting member by a scale shifting mechanism. The scale shifting mechanism shifts the scale plate to a first position wherein only the f-number scale is in the viewfinder optical path upon selection of the automatic diaphragm control mode, and to a second position wherein both the f-number scale and the shutter speed scale are in the viewfinder optical path. A scale shielding member is provided within the viewfinder optical path to shield the f-number scale when the scale plate is in the second position.
摘要翻译：一种用于摄像机的指示装置，其包括取景器并且可选择性地设置为自动光圈控制模式或自动快门速度控制模式，使得能够根据选择性地选择观察f数和快门速度标度曝光控制模式。 f数和快门速度刻度设置在通过刻度移位机构与曝光控制模式选择部件互连的公共透明刻度板上。刻度移位机构将刻度盘移动到第一位置，其中在选择自动光圈控制模式时只有f数字刻度在取景器光路中，并且到第二位置，其中f数字刻度和快门速度取景器光路中的刻度。取景器光路中设有刻度屏蔽构件，以在刻度板处于第二位置时屏蔽f数量表。

4. 发明授权

US4206988A Viewfinder for single lens reflex cameras 失效
标题翻译：单反相机取景器
公开(公告)号：US4206988A
公开(公告)日：1980-06-10
申请号：US29211
申请日：1979-04-12
申请人： Takayoshi Miyamoto , Takeshi Egawa , Yasuo Yamazaki
发明人： Takayoshi Miyamoto , Takeshi Egawa , Yasuo Yamazaki
IPC分类号： G03B19/12 , G03B13/02
CPC分类号： G03B19/12
摘要： A viewfinder for a single lens reflex camera of the T.T.L. light measurement type, wherein light measurement is apt to be affected by external light entering through an eyepiece, includes a diopter adjusting mechanism and an eyepiece shutter. The eyepiece is divided into at least a movable first optical element and a fixed second optical element. The diopter adjusting mechanism is capable of shifting the first optical element for diopter adjustment within a predetermined space which extends along the viewfinder optical axis and is at least partially common to a space that the eyepiece shutter occupies at an advanced position for blocking the viewfinder optical path. Operation of a manually operable member for shifting the eyepiece shutter toward the advanced positon causes the first optical element to be retracted toward the rear away from the predetermined space prior to the shift of the eyepiece shutter into the advanced position.
摘要翻译： T.T.L.的单镜头反光相机的取景器光测量类型，其中光测量容易受到通过目镜进入的外部光的影响，包括屈光度调节机构和目镜快门。目镜至少分为可移动的第一光学元件和固定的第二光学元件。屈光度调节机构能够将第一光学元件移动到沿着取景器光轴延伸的预定空间内的屈光度调节的第一光学元件，并且至少部分地与目镜快门占据用于阻挡取景器光路的高级位置的空间相同。用于将目镜挡板朝向前进位置移动的可手动操作构件的操作使得第一光学元件在目镜挡板移动到前进位置之前朝向后方向远离预定空间缩回。

5. 发明授权

US4309078A Pentagonal prism for camera viewfinder 失效
标题翻译：五角棱镜用于相机取景器
公开(公告)号：US4309078A
公开(公告)日：1982-01-05
申请号：US147532
申请日：1980-05-07
申请人： Kyoichi Hara , Yasuo Yamazaki , Takeshi Egawa
发明人： Kyoichi Hara , Yasuo Yamazaki , Takeshi Egawa
IPC分类号： G03B13/26 , G02B5/04 , G02B27/00 , C03C3/10 , C03C3/30
CPC分类号： G02B27/0018 , G02B5/04 , Y10S501/903
摘要： A pentagonal prism for use in a viewfinder of a single lens reflex camera is made of a glass whose refractive index and Abbe number are not less than 1.6 and 45, respectively. Effective optical path regions on a pair of roof surfaces of the prism are left transparent so that viewfinder light can be totally reflected at both of the roof surfaces. A light absorbing paint is coated in an upper front surface, a pair of said surfaces of the prism as well as at regions other than effective optical path region of the roof surfaces, a bottom light incident surface and a rear light exit surface of the prism. The light absorbing paint prevents the occurrence of ghost images in the view field of the viewfinder. New type glasses suited for the prism are proposed.
摘要翻译：用于单镜头反光相机的取景器的五棱镜由折射率和阿贝数分别不小于1.6和45的玻璃制成。在棱镜的一对屋顶表面上的有效光路区域保持透明，使得取景器光可以在两个屋顶表面被完全反射。光吸收涂料涂覆在上前表面，一对棱镜的所述表面以及除屋顶表面的有效光路区域之外的区域，棱镜的底部光入射表面和后光出射表面。光吸收涂料可以防止取景器视野中出现重影。提出了适用于棱镜的新型眼镜。

6. 发明授权

US07556010B2 Multicylinder internal combustion engine with resonator 有权
标题翻译：具有谐振器的多缸内燃机
公开(公告)号：US07556010B2
公开(公告)日：2009-07-07
申请号：US11902182
申请日：2007-09-19
申请人： Takeshi Egawa , Kenji Koga
发明人： Takeshi Egawa , Kenji Koga
IPC分类号： F02M35/10
CPC分类号： F02M35/10288 , F02B27/021 , F02B27/0247 , F02M35/10295 , F02M35/10308 , F02M35/10321 , F02M35/1036 , F02M35/112 , F02M35/1255 , F02M35/1277 , Y02T10/146
摘要： A multicylinder internal combustion engine E has a cylinder head 2; a cylinder head cover 3; an intake manifold 20 having a header body 21 disposed right above an engine body and intake runners 22; and a resonator 50. Each of the intake runners 22 has a bend 24 extending away from cylinder axes L in a longitudinal direction A2 perpendicular to the cylinder axes L, and curving so as to extend reversely toward the cylinder axes L. The resonator 50 is disposed opposite to the engine body with respect to the intake manifold 20 and is nearer to the cylinder axes L than outermost end parts 24a of the bends 24. The engine including the in take manifold and the resonator can be formed in a small dimension with respect to a longitudinal direction perpendicular to the cylinder axes, and the resonance chamber of the resonator can be easily formed to have a necessary volume.
摘要翻译：多缸内燃机E具有气缸盖2; 气缸盖盖3; 具有设置在发动机主体正上方的集管主体21和进气流道22的进气歧管20; 每个进气流道22具有在垂直于气缸轴线L的纵向方向A2上从气缸轴线L延伸的弯曲部24，并且相对于气缸轴线L反向弯曲。谐振器50是与发动机主体相对于进气歧管20相对设置并且比弯头24的最外端部24a更靠近气缸轴线L.包括进气歧管和谐振器的发动机可以相对于垂直于气缸轴线的纵向方向，并且谐振器的共振室可以容易地形成为具有必要的体积。

7. 发明授权

US5130734A Data input/output device for a camera 失效
标题翻译：用于摄像机的数据输入/输出设备
公开(公告)号：US5130734A
公开(公告)日：1992-07-14
申请号：US154540
申请日：1988-02-05
申请人： Nobuyuki Taniguchi , Takeshi Egawa , Tohru Matsui , Takanobu Omaki , Norio Ishikawa , Akiyoshi Nakamura , Shuzo Matsushita
发明人： Nobuyuki Taniguchi , Takeshi Egawa , Tohru Matsui , Takanobu Omaki , Norio Ishikawa , Akiyoshi Nakamura , Shuzo Matsushita
IPC分类号： G02B7/36
CPC分类号： G02B7/36
摘要： In an interchangeable lens including an optical system adjustable for focusing and adapted to be detachably mounted on a camera body which is provided with focus detection means for detecting an amount of defocus of an object image formed by the optical system, and drive means for driving the optical system for the focus adjustment thereof in accordance with the detected amount of defocus. The interchangeable lens comprises, inter alia, a code plate for producing a plurality of digital photographic distance signals representing given discrete photographic distances of the optical system in accordance with the adjustment of the optical system for focusing. Circuit means output a predetermined one of a plurality of inputs, the plurality of outputs including a plurality of conversion coefficients needed for converting the detected amount of defocus into the amount of drive to be effected by the driving means, the conversion coefficients being intrinsic to the interchangeable lens and having values depending upon the discrete photographic distances of the optical system represented by the digital photographic distance signals, respectively.The digital photographic distance signals are applied to the circuit means as the predetermined input to cause the circuit means to output one of the conversion coefficients as the predetermined output, the value of which depends upon the photographic distance of the optical system represented by the one digital photographic distance signal being produced. The output conversion coefficient are transmitted to the camera body.

8. 发明授权

US4937601A Winding and rewinding apparatus 失效
标题翻译：绕线和倒卷装置
公开(公告)号：US4937601A
公开(公告)日：1990-06-26
申请号：US337637
申请日：1989-04-13
申请人： Yoshihiko Azuma , Takehiro Katoh , Yasuteru Yamano , Masayasu Hirano , Hiroshi Ootsuka , Takeshi Egawa , Masaaki Nakai , Toshihiko Ishimura , Naohiro Kageyama
发明人： Yoshihiko Azuma , Takehiro Katoh , Yasuteru Yamano , Masayasu Hirano , Hiroshi Ootsuka , Takeshi Egawa , Masaaki Nakai , Toshihiko Ishimura , Naohiro Kageyama
IPC分类号： G03B7/091 , G03B17/18 , G03B17/42
CPC分类号： G03B7/091 , G03B17/18 , G03B17/425
摘要： A winding and rewinding apparatus for a camera comprises a winding mechanism, a detector, a rewinding mechanism, a selector and a controller. The winding mechanism winds the film frame by frame, and the detector detects the completion of exposure of the roll of film which is wound by the winding mechanism. The rewinding mechanism rewinds the film automatically in response to the detection of the detecting means. The selector includes a selecting switch which is operable manually, for selecting in response to the operation of the selecting switch one of a first mode in which the operation of the rewinding mechanism is permitted and a second mode in which the operation of the rewinding mechanism is inhibited irrespective of the detection of the detector. The controller controls the rewinding mechanism in accordance with the mode selected by the selecting switch. According to such arrangement, the user can select a manual rewinding mode or an automatic rewinding mode by a simple operation.
摘要翻译：用于照相机的卷绕和重绕设备包括卷绕机构，检测器，倒卷机构，选择器和控制器。卷绕机构逐帧地卷绕胶片，检测器检测卷绕机构卷绕的卷卷的曝光结束。响应于检测装置的检测，倒带机构自动地回卷胶片。选择器包括可手动操作的选择开关，用于响应于选择开关的操作而选择其中允许倒带机构的操作的第一模式之一，以及重绕机构的操作的第二模式与检测器的检测无关地被抑制。控制器根据选择开关选择的模式控制倒带机构。根据这样的结构，用户可以通过简单的操作来选择手动倒带模式或自动倒带模式。

9. 发明授权

US4926206A Focus detection system and lighting device therefor 失效
标题翻译：对焦检测系统及其照明装置
公开(公告)号：US4926206A
公开(公告)日：1990-05-15
申请号：US300237
申请日：1989-01-23
申请人： Tohru Matsui , Takeshi Egawa
发明人： Tohru Matsui , Takeshi Egawa
IPC分类号： G02B7/34 , G03B15/05
CPC分类号： G02B7/346 , G03B15/05 , G03B2215/0535 , G03B2215/0553
摘要： A lighting device such as an electronic flash device attachable to a camera body includes first and second light projecting optical systems which project first and second light fluxes for illuminating an object to aid focus detection by a focus detection device. The second light flux spreads at a larger solid angle than the first light flux and illuminates a first distance zone which extends to a closer distance side while covering the whole of a second distance zone illuminated by the first light flux. An optical wedge disposed in the second light projecting optical system deflects a part of the second light flux towards the closer distance side of the first distance zone. Another lighting device includes a single light projecting optical system but it also includes an optical wedge for deflecting a part of a light flux projected by the light projecting optical system to widen a distance zone illuminated by the light flux towards a closer distance. The optical wedge also serves to produce a difference in intensity distribution of the light flux such that the light flux has higher intensity at a part thereof for illuminating a farther distance side of the distance zone than at a part thereof for illuminating a closer distance side of the distance zone. A light source of the light projecting optical system(s) is provided with a conical light reflecter surrounding a light emitting diode to reflect light emitted from side surfaces of the light emitting diode forward.

10. 发明授权

US4537487A Automatic focus control system with backlash correcting arrangement 失效
标题翻译：具有反向间隙校正装置的自动对焦控制系统
公开(公告)号：US4537487A
公开(公告)日：1985-08-27
申请号：US646380
申请日：1984-08-29
申请人： Nobuyuki Taniguchi , Norio Ishikawa , Takeshi Egawa
发明人： Nobuyuki Taniguchi , Norio Ishikawa , Takeshi Egawa
IPC分类号： G02B7/36 , G03B3/10
CPC分类号： G02B7/36
摘要： An automatic focus control system provided with a backlash correcting arrangement, which is free from influences arising from a backlash or play in a transmission system, and capable of quickly effecting the automatic focus control at a high accuracy.
摘要翻译：一种具有齿隙校正装置的自动对焦控制系统，其不受传动系统中的间隙或播放的影响，并能够以高精度快速实现自动聚焦控制。

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