Photographic exposure meter
    1.
    发明授权
    Photographic exposure meter 失效
    摄影曝光表

    公开(公告)号:US3597095A

    公开(公告)日:1971-08-03

    申请号:US3597095D

    申请日:1967-05-18

    Applicant: RICOH KK

    Inventor: FUKUSHIMA YOSHIO

    CPC classification number: G01J1/42 G01J1/44

    Abstract: A photographic exposure material wherein the pilot lamps are utilized in conjunction with the amplifiers and whereby the proper exposure is obtained by comparing the brightness of one of the pilot lamps with the brightness of the other pilot lamp.

    Light source system
    2.
    发明授权
    Light source system 失效
    光源系统

    公开(公告)号:US3644030A

    公开(公告)日:1972-02-22

    申请号:US3644030D

    申请日:1969-07-08

    Applicant: RICOH KK

    Inventor: FUKUSHIMA YOSHIO

    CPC classification number: G03B21/28 G03B21/20 G03B21/2006 G03B21/60 Y10S353/06

    Abstract: A light source system for a projection system wherein a reflecting mirror having an observation window formed through a center portion thereof is inclined in front of a projector and an object illuminated by light beam from a ring-shaped light source or ring-shaped light source image is projected upon a reflex reflecting screen through said reflecting mirror so that the projected image may be viewed through the observation window.

    Abstract translation: 一种用于投影系统的光源系统,其中具有通过其中心部分形成的观察窗的反射镜在投影仪前方倾斜,并且由来自环形光源或环形光源图像的光束照射的物体 通过所述反射镜投影在反射反射屏幕上,使得投影图像可以通过观察窗观看。

    Multiphotographic device
    4.
    发明授权

    公开(公告)号:US3587430A

    公开(公告)日:1971-06-28

    申请号:US3587430D

    申请日:1968-09-19

    Applicant: RICOH KK

    Inventor: FUKUSHIMA YOSHIO

    CPC classification number: G02B27/0905 G03B15/00

    Abstract: A MULTIPHOTOGRAPHIC DEVICE IS PROVIDED HAVING A FIRST LENS WITH AN ASSOCIATED MOVABLE APERTURE ADAPTED TO RECORD A PLURALITY OF IMAGES BY MEANS OF A MOVABLE APERTURE AND A PLURALITY OF MICROLENSES. THE MOVABLE APERTURE IS FORMED BY SUPERIMPOSING A SLOT IN A VERTICALLY MOVING BELT ON A SLOT IN A HORIZONTALLY MOVABLE PLATE. THE VERTICAL BELT IS MOVED IN INCREMENTS SLIGHTLY LARGER THAN THE SIZE OF THE APERTURE, AND THE HORIZONTAL PLATE IS MOVED IN INCREMENTS EQUAL TO 1/N WHERE N

    IS THE QUOTIENT OBTAINED BY DIVIDING THE LENGTH OF THE SLOT BY THE LENGTH OF ONE SIDE OF THE APERTURE.

    Projector for images formed by compound photography
    6.
    发明授权
    Projector for images formed by compound photography 失效
    投影机通过复合摄影形成的图像

    公开(公告)号:US3658414A

    公开(公告)日:1972-04-25

    申请号:US3658414D

    申请日:1969-12-02

    Applicant: RICOH KK

    Inventor: FUKUSHIMA YOSHIO

    CPC classification number: G03B21/00

    Abstract: A device for projecting upon a screen the images formed and recorded by the compound photographic camera which comprises a first lens directed toward a subject, an aperture movable in a plane within said first lens or in the vicinity thereof and at a right angle relative to the optical axis thereof and a microlens group disposed behind a plane upon which an image in the air is formed through said first lens, whereby said image is further split into finely divided images and recorded upon a sensitized material disposed behind said microlens group and a plurality of images of other subjects are recorded upon said sensitized material in the same manner as described above.

    Abstract translation: 一种用于在屏幕上投射由复合照相机形成和记录的图像的装置,所述复合照相机包括朝向被摄体的第一透镜,可在所述第一透镜内或其附近的平面内移动并且相对于所述第一透镜成直角的孔 设置在通过所述第一透镜形成空气中的图像的平面后面的微透镜组,由此所述图像进一步分割成细分​​的图像并记录在设置在所述微透镜组后面的敏化材料上,并且多个 以与上述相同的方式将其他受试者的图像记录在所述致敏材料上。

    Directional or reflexive projection screen
    9.
    发明授权
    Directional or reflexive projection screen 失效
    方向或反射投影屏幕

    公开(公告)号:US3639037A

    公开(公告)日:1972-02-01

    申请号:US3639037D

    申请日:1970-02-25

    Applicant: RICOH KK

    Inventor: FUKUSHIMA YOSHIO

    CPC classification number: G03B21/602

    Abstract: A directional or reflexive projection screen having a reflecting surface consisting of at least two or more kinds of glass beads having different refractive indexes. The optimum image viewing area may be arbitrarily adjusted.

    Abstract translation: 具有由具有不同折射率的至少两种或更多种玻璃珠组成的反射表面的定向或反射投射屏。 可以任意调整最佳图像查看区域。

    Symbol indication device
    10.
    发明授权
    Symbol indication device 失效
    符号指示装置

    公开(公告)号:US3623789A

    公开(公告)日:1971-11-30

    申请号:US3623789D

    申请日:1970-07-22

    Applicant: RICOH KK

    CPC classification number: G03B27/522 G02B3/0056 G03B21/06

    Abstract: A symbol indication device comprises a symbol plate having a plurality of symbols thereon and a microlens plate having a number of microlenses, equal in number and position to the respective symbols, arranged in a plane and serving as projecting lenses for the pictures of the symbols. A field lens refracts rays emerging from the microlens plate so that the symbols form images in the same location. A concave lens is positioned at a location such that the rays from the field lens are within the focal length of the concave lens, and a screen is positioned so that the pictures of the symbol are directed thereon through the field lens and the concave lens. A condenser lens converges rays emerging from the screen. Any one of the symbols can be selectively illuminated by a light source to have its picture projected on the screen.

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