公开(公告)号：US4443067A

公开(公告)日：1984-04-17

申请号：US246224

申请日：1981-03-23

Applicant: R. Calvin Owen, Jr. ,  William T. Plummer

Inventor： R. Calvin Owen, Jr. ,  William T. Plummer

IPC: G02B7/28 ,  G02B13/18 ,  G02B27/40 ,  G02B9/04 ,  G02B9/06 ,  G02B15/02

CPC classification number: G02B7/28 ,  G02B13/18 ,  G02B27/40

Abstract: A zone focusing lens system is provided for use as a photographic camera objective. In the system, a fixed positive meniscus is placed ahead of the system aperture stop and is provided with an aspheric surface that is structured primarily to correct for off-axis aberrations. A lens disk having a plurality of different meniscus lens elements is located so that each of its elements can be selectively rotated into alignment proximate the system aperture stop to provide system focal lengths appropriate for sharply focusing objects located within different distance ranges. Each of the lens disk elements is provided with an aspheric surface that is structured primarily to reduce spherical aberrations.

Abstract translation: 提供区域聚焦透镜系统用作照相机物镜。 在系统中，将固定的正弯月面放置在系统孔径光阑前面，并且设置有主要用于校正离轴像差的非球面。 具有多个不同的弯月透镜元件的透镜盘被定位成使得其每个元件可以选择性地旋转到靠近系统孔径光阑对准，以提供适合于锐利地聚焦在不同距离范围内的物体的系统焦距。 每个透镜盘元件设置有主要用于减小球面像差的非球面表面。

公开(公告)号：US4282548A

公开(公告)日：1981-08-04

申请号：US140086

申请日：1980-04-14

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: H04N5/232 ,  H04N7/02

CPC classification number: H04N5/23212

Abstract: Lens testing apparatus and method by which the focus of a lens can be set to sharply image a distant object in a select focal or reference plane. The apparatus comprises a conventional television camera on which a lens can be mounted in a predetermined manner to focus light from a collimated light beam onto the photosensitive surface of the television camera tube. As the lens is adjusted, the area of the pattern of illumination formed by the lens on the photosensitive surface changes in accordance with the state of focus of the lens. The television camera scans the illuminated area and produces a video signal which is received by electronic circuitry that is operative to indicate the size of the area of the pattern of illumination as the lens state of focus is changed. The smallest area indicated corresponds to the best focus adjustment for the lens. Lens focal length also can be determined with the apparatus by making appropriate measurements when the smallest area is indicated.

Abstract translation: 透镜测试装置和方法可以将透镜的焦点设置为在选择焦点或参考平面中对远处物体进行锐利成像。 该装置包括传统的电视摄像机，其上可以以预定方式安装透镜，以将来自准直光束的光聚焦到电视摄像机管的感光表面上。 当调整透镜时，透镜在感光表面上形成的照明图案的面积根据透镜的焦点状态而变化。 电视摄像机扫描照明区域并产生视频信号，该视频信号由电子电路接收，该视频信号可操作以指示随着焦点的透镜焦点状态改变时照明图案的区域的尺寸。 指示的最小面积对应于镜头的最佳对焦调整。 当指示最小区域时，通过进行适当的测量，也可以用设备确定透镜焦距。

公开(公告)号：US4264167A

公开(公告)日：1981-04-28

申请号：US118419

申请日：1980-02-04

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: G03B17/48 ,  G03B29/00

CPC classification number: G03B17/48 ,  G03B29/00

Abstract: An adapter by which a self-contained camera having an objective lens can be optically and mechanically coupled with a well-known endoscope of the type having an especially designed eyepiece adapted to be changed between a viewing mode and a photographic mode, in which the eyepiece operates as an objective lens for forming an object image in a plane located a predetermined distance behind the eyepiece. The adapter of the invention is structured to mechanically and optically couple the self-contained camera to the endoscope and to change the endoscope eyepiece from its viewing mode to its photographic mode. Provided in the adapter is a negative lens which optically nullifies the objective lens function of the endoscope eyepiece of collimating convergent image forming rays therefrom so that the self-contained camera can be used to photograph the image formed by the endoscope with the camera objective lens focused at infinity.

Abstract translation: 具有物镜的独立照相机的适配器可以与具有特别设计的目镜的类型的公知内窥镜光学和机械耦合，该内窥镜适于在观看模式和摄影模式之间改变，其中目镜 作为用于在位于目镜之后的预定距离的平面中形成物体图像的物镜。 本发明的适配器被构造成将独立照相机机械地和光学地耦合到内窥镜并且将内窥镜目镜从其观看模式改变到其摄影模式。 在适配器中设置的是负透镜，其使得内窥镜目镜的物镜功能光学地使由其准直的会聚图像形成光线的位置偏移，使得独立照相机可以用相机物镜聚焦的内窥镜形成的图像拍摄 在无穷远

公开(公告)号：US4226515A

公开(公告)日：1980-10-07

申请号：US53050

申请日：1979-06-28

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: G03B5/06 ,  G03B17/52 ,  G03B19/06 ,  G03B5/00 ,  G03B7/24

CPC classification number: G03B5/06 ,  G03B17/52 ,  G03B19/06

Abstract: Photographic apparatus having an optical system which in a first mode of operation functions to image a subject upon a film plane so as to be geometrically reversed along only one axis of the film plane and in a second mode of operation functions to image the subject on the film plane so as to be geometrically reversed along each of two orthogonal axes, the particular mode being dependent upon the type of film unit being exposed.

公开(公告)号：US4157216A

公开(公告)日：1979-06-05

申请号：US918779

申请日：1978-06-26

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: G03B15/14 ,  G03B29/00 ,  A61B1/06 ,  G03B17/48

CPC classification number: G03B15/14

Abstract: An optical adapter is provided by which an image formed by the eyepiece of an optical viewing device such as an endoscope can be simultaneously viewed and photographed with a motion picture camera of the type having a through-the-lens viewing system which has an entrance pupil that occupies only a portion of the entrance pupil of the camera's optical taking system and which is positioned off the optical axis of the camera's optical taking system. The adapter operates to spread the optical viewing device's exit pupil so that its size matches that of the camera's entrance pupil and to improve the uniformity of illumination of the camera's viewing system and taking system.

Abstract translation: 提供一种光学适配器，通过该光学适配器可以利用具有透镜观察系统的类型的电影摄影机同时观看和拍摄由诸如内窥镜的光学观察装置的目镜形成的图像，该摄像机具有入射光瞳 它仅占用相机的光学拍摄系统的入射光瞳的一部分，并且位于相机的光学拍摄系统的光轴之外。 适配器操作以扩展光学观察设备的出射光瞳，使其尺寸与摄像机入射光瞳的尺寸相匹配，并提高照相机的观看系统和拍摄系统的照明均匀性。

公开(公告)号：US4147408A

公开(公告)日：1979-04-03

申请号：US754012

申请日：1976-12-23

Applicant: William T. Plummer

Inventor： William T. Plummer

IPC: G03B21/11 ,  G03B21/60 ,  G03B21/62

CPC classification number: G03B21/60 ,  G03B21/625

Abstract: A back projection viewing screen comprising two parallel transparent sheets of plastic, each having its faces optically configured. The surfaces have the following characteristics arranged in the order from the projection side to the viewing side: (1) an ordinary circular Fresnel lens to which a light frosted texture has been applied; (2) a series of parallel vertical convex circular lenticulations joined by sharply defined cusps; (3) a series of parallel vertical convex lenticulations joined by sharp cusps and having an elliptical cross-section. The lenticulations on this third surface have a very different periodicity from that of the second surface to avoid the possibility of moire patterns; (4) the viewing surface of the screen is defined by a series of parallel horizontal convex lenticulations, each having a convex elliptical cross-section.

Abstract translation: 背投影观察屏幕包括两个平行的透明塑料薄片，每个都具有光学配置的表面。 这些表面具有从投影侧到观察侧的顺序排列的以下特征：（1）普通的圆形菲涅尔透镜，其具有浅磨砂纹理; （2）通过尖锐定义的尖端连接的一系列平行垂直凸圆形微透镜; （3）一系列平行的垂直凸透镜，通过尖锐尖端连接并具有椭圆形横截面。 该第三表面上的微透镜具有与第二表面非常不同的周期性，以避免波纹图案的可能性; （4）屏幕的观察表面由一系列平行的水平凸形微透镜限定，每个具有凸的椭圆形横截面。