公开(公告)号：US4962641A

公开(公告)日：1990-10-16

申请号：US316854

申请日：1989-02-28

申请人： John N. Ghougasian

发明人： John N. Ghougasian

IPC分类号： F02K7/04 ,  F02K7/06

CPC分类号： F02K7/06 ,  F02K7/04

摘要： Combustion supporting air in the resonator tube of a pulse jet engine is cyclically compressed by combustion and discharged through a decelerating passage of a diffuser in a tail section of the engine to internally pressurize an afterbody preceding atmospheric dishcarge of the combustion products through nozzle passages, followed by primary refill with air from the pressurized afterbody and secondary refill by reentry of external air. The nozzle passages are formed in angularly spaced, rearwardly diverging vane formations of the tail section projecting from a protective casing directing ram air intake into orifice openings formed in a rear end portion of the diffuser to regulate afterbody pressurization under control of ram pressure created by forward propulsion of the engine.

摘要翻译： 在脉冲喷气发动机的谐振管中的燃烧支持空气通过燃烧循环地压缩并通过发动机尾部的扩散器的减速通道排出，以通过喷嘴通道在内部对燃烧产物的大气压力之前的体内加压，随后 通过主要再充填来自加压后身体的空气和通过外部空气的再入进行二次充填。 喷嘴通道形成在从形成在扩散器的后端部分的孔口中的保护壳体的保护壳体上形成的角度间隔开的向后扩散的叶片结构中，所述保护壳体引导形成在扩散器的后端部分中的孔口开口，以在由向前产生的压头压力的控制下调节后体加压 发动机推进。

公开(公告)号：US4341467A

公开(公告)日：1982-07-27

申请号：US189747

申请日：1980-09-23

申请人： John N. Ghougasian

发明人： John N. Ghougasian

IPC分类号： G03B7/08 ,  G03B9/02 ,  G03B27/32 ,  G03B27/52 ,  G03B27/72 ,  G03F7/20 ,  G06G1/00

CPC分类号： G06G1/0042 ,  G03B27/323

摘要： A first scale component is stationarily mounted on a stationary lens component relative to which a rotatable lens component is supported. A pointer is supported from the rotatable lens component for angular displacement therewith and the first scale component includes first linear lens stop scale indicia thereon relative to which the pointer is registered and along which the pointer may swing. A second scale component including a second linear size compensation scale is provided and supported from the second scale component for back and forth shifting relative thereto for longitudinally shifting of the size adjustment scale generally along the path of swinging movement of the pointer. A third scale component including a third linear density value scale is supported from the first scale component for back and forth longitudinal shifting of the density scale transverse to the longitudinal extent of an adjacent portion of the size component scale.

摘要翻译： 第一刻度部件固定地安装在固定的透镜部件上，可旋转透镜部件被支撑在该透镜部件上。 可旋转透镜部件支撑指针，用于与其成角度位移，并且第一刻度部件包括第一线性透镜停止刻度标记，相对于该第一线性透镜停止刻度标记，指针被注册并且指针可以沿着该标记摆动。 包括第二直线尺寸补偿标尺的第二刻度部件由第二标尺部件提供和支撑，用于相对于其前后移位，用于大体上沿着指针的摆动运动的路径纵向移动尺寸调整刻度。 包括第三线性密度值刻度的第三尺度分量由第一刻度部件支撑，用于横向于尺寸分量标尺的相邻部分的纵向范围的前后纵向移位。

公开(公告)号：US4527889A

公开(公告)日：1985-07-09

申请号：US569249

申请日：1984-01-06

申请人： John N. Ghougasian

发明人： John N. Ghougasian

IPC分类号： G03B27/58 ,  G03F9/00 ,  G03B27/32

CPC分类号： G03B27/581 ,  G03F9/00

摘要： A pair of thin panel members are provided having registry posts mounted thereon comprising thin discs punched from a panel sheet. The registry posts are snugly received in registry apertures of the same size formed in remote marginal portions of a film sheet or panel sheet portions tape attached to remote marginal edges of a film sheet and the panel members may then be pressure-sensitive tape applied to the open back of a camera used for copy work. The film sheet may then be exposed, removed from the registry posts and then developed. A second film sheet may thereafter be mounted on the camera back and partially exposed through a contact screen disposed thereover. The contact screen may then be removed and the developed film sheet then may again be mounted on the camera back over the exposed second film sheet through utilization of the registry posts so that the developed film sheet will be in exact registry with the exposed film sheet retained on the camera back. Thereafter, the camera back may be closed and the partially exposed second mentioned film sheet may be further exposed through the developed film sheet after which both film sheets may be removed from the camera and the second film sheet may be developed and have prints made therefrom. A cover panel portion is provided for each post and serves to protect the contact screen.

摘要翻译： 设置有一对薄板构件，其具有安装在其上的登记柱，包括从面板片冲裁的薄盘。 登记柱紧贴在胶片片的偏远边缘部分形成的相同尺寸的注册孔中，或者粘附在胶片片的偏远边缘上的面板片部分胶带，然后可将面板部件用于施加到 打开用于复印工作的相机的背面。 然后可以将电影片曝光，从注册表帖子中移除，然后展开。 此后可以将第二薄膜片安装在相机背面，并通过布置在其上的接触屏部分露出。 然后可以移除接触屏幕，然后可以通过利用注册表柱将显影的胶片片再次安装在照相机上暴露的第二膜片上，使得显影的胶片片片与已保留的曝光胶片片精确对准 在相机背面。 此后，相机背部可以被关闭，并且部分曝光的第二提及的薄膜片可以通过显影的薄膜片进一步暴露，之后可以从相机中去除两个薄膜片，并且可以显影第二薄膜片并具有由其制成的印刷。 为每个柱设置盖板部分，并用于保护接触屏。

公开(公告)号：US4030825A

公开(公告)日：1977-06-21

申请号：US644899

申请日：1975-12-29

申请人： John N. Ghougasian

发明人： John N. Ghougasian

IPC分类号： G03B27/72 ,  G03B27/76

CPC分类号： G03B27/72

摘要： A projection diaphragm assembly for achieving halftone negatives with conventional cameras capturing the range and contrast of reproduction materials to be copied, retarding the lighter gray from the white in black and white halftone negatives and separating the gray-white contrast relation for printing purposes is provided. The projection diaphragm is to be utilized in conjunction with a halftone screen of conventional form and may be utilized in front of the associated camera lens assembly or between the front and rear elements of the associated camera lens assembly. The diaphragm assembly includes a frame supported from the associated camera for angular displacement about the center axis of the camera lens assembly and a pair of aperture defining superposed plates are supported from the frame for simultaneous inverse rectilinear shifting diametrically of the associated camera lens axis. The plates are disposed normal to the associated lens axis and include variably registrable openings formed therethrough. When the openings are partially or fully registered with each other, they define an aperture centered on the center axis of the associated lens assembly and the cross-sectional shape of the aperture formed may be square, rectangular or generally elliptical, according to the cross-sectional shapes of the partially or fully registered plate openings defining the aperture. Of course, inasmuch as the frame supporting the plates is rotatable about the center axis of the associated lens assembly, a square or rectangular aperture may be rotated to define a diamond-shaped aperture and elliptical aperture may also be similarly rotated.

摘要翻译： 提供了一种投影膜组件，用于利用常规照相机获得半色调负片，捕获要复印的再现材料的范围和对比度，从而将黑白色半色调负片中的较浅灰色从白色延迟，并分离用于打印目的的灰白色对比度关系。 投影光圈与传统形式的半色调网屏幕结合使用，并且可以用在相关联的摄像机镜头组件前面或相关联的摄像机镜头组件的前和后元件之间。 隔膜组件包括从相关联的照相机支撑的框架，用于围绕相机透镜组件的中心轴线的角位移，并且从框架支撑限定重叠板的一对孔，用于相关联的摄像机透镜轴线的直线相位直线移动。 板平行于相关联的透镜轴设置，并且包括通过其形成的可变地可注册的开口。 当开口部分地或完全地彼此对准时，它们限定了一个以相关联的透镜组件的中心轴为中心的孔，并且所形成的孔的横截面形状可以是正方形，矩形或大致椭圆形， 限定孔的部分或完全记录的板开口的截面形状。 当然，由于支撑板的框架可以围绕相关联的透镜组件的中心轴线旋转，可以旋转方形或矩形孔口以限定菱形孔，并且椭圆形孔也可以类似地旋转。