公开(公告)号：US4079411A

公开(公告)日：1978-03-14

申请号：US647405

申请日：1976-01-08

Applicant: Rudolf Succo Engelbrecht ,  Karl Knop

Inventor： Rudolf Succo Engelbrecht ,  Karl Knop

IPC: G02B5/18 ,  G02B5/20 ,  H01J29/89 ,  H04N9/07 ,  G03B33/00 ,  H04N5/84

CPC classification number: H01J29/89 ,  G02B5/1871 ,  G02B5/203 ,  H04N9/07

Abstract: A phase grating structure is defined in which a series of predetermined sawtooth phase delay steps has the property of focusing respective wavelength components of a spectrum of incident wave energy in accordance with their wavelength at different spots in the near field. Although not limited thereto, the invention has particular utility for spatially separating the color components of polychromatic light. Useful applications for this phase filter include (1) recording color pictures on black-and-white film for display in full color, and (2) a single-gun color television camera.

Abstract translation: 定义了相位光栅结构，其中一系列预定的锯齿相位延迟步骤具有根据其在近场中不同点处的波长聚焦入射波能量谱的各个波长成分的性质。 虽然不限于此，但是本发明对于空间分离多色光的颜色分量具有特别的用途。 该相位滤波器的有用应用包括（1）在黑白胶片上记录彩色图像以全色显示，以及（2）单枪彩色电视摄像机。

公开(公告)号：US4057326A

公开(公告)日：1977-11-08

申请号：US694441

申请日：1976-06-09

Applicant: Karl Knop

Inventor： Karl Knop

IPC: G02B5/18 ,  G02B5/20 ,  G03C7/00 ,  G02B5/22

CPC classification number: G02B5/1857 ,  G02B5/1871 ,  G02B5/203 ,  G03C7/00

Abstract: The present invention takes advantage of the fact that the first and second optical depths of a diffractive subtractive color filter respectively manifesting cyan and yellow zero-order diffraction light may be so selected that an optical depth equal to the sum of the first and second optical depths manifests green zero-order diffraction light. This permits a variable optical amplitude first grating, manifesting cyan, yellow and green, to be combined with a fixed optical amplitude second grating, manifesting magenta, to provide a full gamut of colors.

Abstract translation: 本发明利用了分别表现青色和黄色零级衍射光的衍射减色滤色器的第一和第二光学深度被选择为使得光学深度等于第一和第二光学深度之和的事实 表现出绿色零级衍射光。 这允许呈现青色，黄色和绿色的可变光学幅度第一光栅与固定的光学振幅第二光栅组合，呈现品红色，以提供全色域。

公开(公告)号：US3961836A

公开(公告)日：1976-06-08

申请号：US507706

申请日：1974-09-20

Applicant: Karl Knop

Inventor： Karl Knop

IPC: G03H1/22 ,  G03H1/04

CPC classification number: G03H1/0406

Abstract: A focused-image hologram recorded in a thin phase medium having a high-frequency line spacing, such that the ratio of this line spacing to the wavelength of the readout light beam is greater than one but less than two, when read out with a light beam inclined at an angle greater than 30.degree. with respect to the normal to the plane of the focused image hologram, results in an optical readout efficiency approaching 50%, compared to the theoretical maximum optical readout efficiency of about 34% of a coarse sinusoidal phase grating having a line spacing much larger tha twice the wavelength of the readout light beam.

Abstract translation: 记录在具有高频线间隔的薄相介质中的聚焦图像全息图，使得当用光读出时，该线间距与读出光束的波长的比率大于1但小于2 相对于聚焦图像全息图的平面的法线倾斜大于30°的光束，与粗糙正弦相位的约34％的理论最大光学读出效率相比，光学读出效率接近50％ 光栅具有比读出光束的波长大两倍的线间距。

公开(公告)号：US4272197A

公开(公告)日：1981-06-09

申请号：US70514

申请日：1979-08-28

Applicant: Karl Knop

Inventor： Karl Knop

IPC: G01J1/16 ,  G06G7/24 ,  G01N21/59

CPC classification number: G06G7/24 ,  G01J1/16

Abstract: The ratio of the intensity of two light beams is determined by an apparatus which includes a chopper wheel for chopping one of the light beams, a photodetector for detecting the intensity of both light beams applied simultaneously thereto, and a logarithmic amplifier for amplifying the current produced by the photodetector. The AC component of the logarithmically amplified current represents the ratio of the intensity of the two light beams.

Abstract translation: 两个光束的强度的比例由包括用于切割光束中的一个的斩波轮的装置确定，用于检测同时施加的两个光束的强度的光电检测器和用于放大产生的电流的对数放大器 通过光电检测器。 对数放大电流的AC分量表示两个光束的强度之比。

公开(公告)号：US4314763A

公开(公告)日：1982-02-09

申请号：US813

申请日：1979-01-04

Applicant: Edgar F. Steigmeier ,  Karl Knop

Inventor： Edgar F. Steigmeier ,  Karl Knop

IPC: G01N21/95 ,  G01N21/88

CPC classification number: G01N21/9501

Abstract: A laser beam projected through a prism in a direction normal to the surface of a circular wafer is focused into a spot area and scanned along a spiral path on this surface. The focusing means comprises a relatively large aperture lens and the prism is on the lens axis. The retroreflected specular light passes through the lens and is prevented from reaching a light detector in the image plane of the lens by the prism. When the beam illuminates a microscopic surface defect on the wafer, the light is diffracted and reflected therefrom, and the lens captures that portion of the reflected light within the solid angle subtended by the lens, and passes that portion thereof not blocked by the prism, to the light detector. The output of the detector may be employed to intensity modulate the beam of a cathode-ray tube display, the beam of which is spirally scanned in synchronism with the scanning of the light beam.

Abstract translation: 沿着垂直于圆形晶片表面的方向通过棱镜投射的激光束被聚焦到光斑区域中并且沿着该表面上的螺旋路径扫描。 聚焦装置包括相对大的孔径透镜，并且棱镜在透镜轴上。 后向反射的镜面光通过透镜，并且被棱镜防止在透镜的图像平面中到达光检测器。 当光束照射晶片上的微观表面缺陷时，光被衍射并从其反射，并且透镜捕获由透镜对着的立体角内的那部分反射光，并且将其部分未被棱镜阻挡， 到光检测器。 检测器的输出可用于对阴极射线管显示器的光束进行强度调制，阴极射线管显示器的光束与光束的扫描同步地螺旋扫描。

公开(公告)号：US4157220A

公开(公告)日：1979-06-05

申请号：US897027

申请日：1978-04-17

Applicant: Michael T. Gale ,  Karl Knop

Inventor： Michael T. Gale ,  Karl Knop

IPC: G03C7/00 ,  G03B27/00 ,  G03B27/02 ,  G03B27/76

CPC classification number: G03C7/00

Abstract: A group of separate large-size color or black-and-white pictures to be recorded on a master as very finely-screened (e.g. 10 micrometer period) micropictures in a given format, such as microfiche, are first reduced to a continuous-tone first recording at an intermediate size on a medium, such as 70 millimeter film. Then a relatively fine-screened (e.g. 40 micrometer period), high-contrast second recording, made from the first recording by contact printing, is reduced to micropicture size in the given format.

Abstract translation: 首先将以一定格式（例如缩微胶片）非常细微（例如10微米）周期）微图像记录在主机上的一组单独的大尺寸彩色或黑白图像首先被还原成连续色调 首先在中等尺寸的介质上记录，例如70毫米的胶片。 然后，通过接触印刷由第一次记录制成的相对精细的屏幕（例如40微米的周期），高对比度的第二记录被减小到给定格式的微图像尺寸。

公开(公告)号：US4082438A

公开(公告)日：1978-04-04

申请号：US682147

申请日：1976-04-30

Applicant: Karl Knop

Inventor： Karl Knop

IPC: G02B27/46 ,  G03B21/14

CPC classification number: G02B27/46

Abstract: A projector for projecting pictures from zero-order diffractive subtractive filters, which may make use of an extraordinarily large amount of light flux, is achieved by a mask which transmits zero order light through an array of transparent regions separated by opaque regions which block higher diffraction order light.

公开(公告)号：US4251137A

公开(公告)日：1981-02-17

申请号：US942184

申请日：1978-09-14

Applicant: Karl Knop ,  James Kane

Inventor： Karl Knop ,  James Kane

IPC: G02F1/01 ,  G02F1/1333 ,  G02F1/139 ,  G02F1/133

CPC classification number: G02F1/01 ,  G02F1/133371 ,  G02F1/139 ,  G02F2201/305 ,  G02F2203/22 ,  G02F2203/34 ,  G03H2250/38

Abstract: A diffractive subtractive filter is made tunable by controllably varying the index of refraction of a fluid medium in contact with a surface relief pattern of a solid diffractive phase medium. A liquid crystal is the preferred fluid.

Abstract translation: 通过可控地改变与固体衍射相介质的表面浮雕图案接触的流体介质的折射率，可以使衍射减法滤波器可调。 液晶是优选的流体。

公开(公告)号：US3957354A

公开(公告)日：1976-05-18

申请号：US546401

申请日：1975-02-03

Applicant: Karl Knop

Inventor： Karl Knop

IPC: G03B33/00 ,  B44F1/12 ,  G02B5/18 ,  G02B5/20 ,  G02B27/18 ,  G02B27/42 ,  G02B27/44 ,  G03C7/00 ,  G02B27/38

CPC classification number: G02B27/4244 ,  G02B27/18 ,  G02B27/4294 ,  G02B5/203 ,  G03C7/00 ,  G02B27/425 ,  Y10S359/90

Abstract: A subtractive color filtering technique, suitable for the projection of color pictures, employs diffraction, rather than color dyes, for discriminatingly subtracting unwanted spectral wavelength portions of polychromatic illuminating light. The useful output light may consist of solely the zero-order diffraction output light or, alternatively, one or a certain combination of diffraction orders other than the zero diffraction order (such as the aggregate of all diffraction orders other than the zero diffraction order which corresponds to the complement of the zero-order diffraction output light).

Abstract translation: 适用于彩色图像的投影的减色滤色技术使用衍射而不是彩色染料来区别性地减去多色照明光的不需要的光谱波长部分。 有用的输出光可以仅由零级衍射输出光组成​​，或者替代地，除了零衍射级之外的衍射级的一个或一定的组合（例如除零对应于零衍射级之外的所有衍射级的集合 到零级衍射输出光的补码）。

公开(公告)号：US4130347A

公开(公告)日：1978-12-19

申请号：US841057

申请日：1977-10-11

Applicant: Karl Knop

Inventor： Karl Knop

IPC: G03B33/00 ,  G02B5/18 ,  G02B5/20 ,  G02B27/02 ,  G02B27/42 ,  G02B27/44 ,  G03C7/00

CPC classification number: G02B5/203 ,  G02B5/1809 ,  G02B5/1871 ,  G03C7/00

Abstract: Rectangular groove profile grating, having an effective line spacing no greater than 2.mu.m, has grating parameters specified to provide at least acceptable or, preferably, good zero diffraction order color characteristics for subtractive primary colors and green when grating is illuminated with unpolarized white light.

Abstract translation: 具有不大于2μm的有效线间距的矩形凹槽轮廓光栅具有规定的光栅参数，以在用非偏振白光照射光栅时提供至少可接受的或优选的用于减色原色的零衍射级色彩特性和绿色 。