公开(公告)号：US3858977A

公开(公告)日：1975-01-07

申请号：US40093973

申请日：1973-09-26

Applicant: CANADIAN PATENTS DEV

Inventor： BAIRD KENNETH M ,  DOBROWOLSKI JERZY A ,  WALDORF ALLAN J ,  CARMAN PHILIP D

IPC: B42D15/00 ,  G02B5/28 ,  G07D7/12 ,  G01D3/50

CPC classification number: G02B5/285 ,  B42D25/29 ,  G07D7/1205

Abstract: An optical interference, authenticating means, comprising a substrate, and a filter composed of at least one optical interference layer having a known characteristic of spectral reflectance and a different, known characteristic of spectral transmittance, both of which vary with the angle of incidence of light on the filter. The substrate, which may be a portion of a valuable document such as a bank note, has a portion of the surface adjacent to the filter coloured to absorb some of the light transmitted by the filter.

Abstract translation: 光学干涉，认证装置，包括衬底和由至少一个光学干涉层组成的滤光器，该光学干涉层具有已知的光谱反射特性和不同的已知的光谱透射特性，两者都随着光的入射角度而变化 在过滤器上。 可以是诸如钞票的有价值文件的一部分的衬底具有与滤色器相邻的表面的一部分，以吸收由过滤器传输的一些光。

公开(公告)号：US3692405A

公开(公告)日：1972-09-19

申请号：US3692405D

申请日：1971-01-18

Applicant: CANADIAN PATENTS DEV

Inventor： BLACHUT THEODORE J ,  SMIALOWSKI ANTONI J ,  SCHUT GERHARDUS H ,  CARMAN PHILIP D

IPC: G01C11/00 ,  G01C11/18

CPC classification number: G01C11/00

Abstract: An orthocartograph is disclosed which is in the form of a mechanical photogrammetric plotter from which corresponding sections of stereophotographic images are corrected and transferred simultaneously by an optical train and printed simultaneously on light sensitive films in a printing unit. The relative positions of both films in every point is rigidly controlled so that orthophotos are produced. Magnification of the image from the stereo-photographic images is varied in accordance with a Z-coordinate at right angles to X- and Y-coordinates and in accordance with an omega -tilt about the X-axis and a phi tilt about the Y-axis, relative to the principal point. Scanning being performed in the X-direction, the image is rotated in accordance with the omega -tilt about the X-axis.

Abstract translation: 公开了一种机械摄影测绘绘图仪的形式，其中立体摄影图像的相应部分由光学列车同时校正并同时印刷在印刷单元中的感光膜上。 两个膜在每个点的相对位置被严格控制，以便产生正射影像。 根据与X坐标和Y坐标成直角的Z坐标，并且根据关于X轴的ω坐标和围绕Y轴的旋转坐标来改变来自立体照相图像的图像的放大率。 相对于主要点。 在X方向上进行扫描，根据关于X轴的ω坐标旋转图像。