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公开(公告)号：US4557599A
公开(公告)日：1985-12-10
申请号：US586704
申请日：1984-03-06
申请人： Bruce Zimring
发明人： Bruce Zimring
CPC分类号： G01B3/02 , Y10T83/849
摘要： A target plate is provided in the operating field of view of a microscopic operating system having a plurality of target patterns thereon. These target patterns include scaled rulings, to which an operating element of the system is aligned, and reflective portions for calibrating the optical elements of the system to assure even illumination of the field of view and minimal distortion. Additional target patterns include centerline rulings which intersect at right angles for calibration of Theta alignment of an operating element, and at least one matte surface for examination of the pattern recognition capability to determine contrast and video information quality. At least one checkerboard pattern of alternating reflective and non-reflective surfaces and at least one continuously reflective surface may be provided to calibrate distortion, focus, illumination, and contrast.
摘要翻译： 在其上具有多个目标图案的微观操作系统的操作视野中提供目标板。 这些目标图案包括系统的操作元件对准的缩放的刻度，以及用于校准系统的光学元件的反射部分，以确保对视野的均匀照明和最小的失真。 附加的目标图案包括以直角相交校准工作元件的Theta对准的中心线规则，以及用于检查图案识别能力以确定对比度和视频信息质量的至少一个无光泽表面。 可以提供交替的反射和非反射表面和至少一个连续反射表面的至少一个棋盘图案以校准失真，聚焦，照明和对比度。
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公开(公告)号：US3779755A
公开(公告)日：1973-12-18
申请号：US3779755D
申请日：1971-07-14
申请人： AGFA GEVAERT AG
发明人： SCHELLENBERGER H , VON RINTELEN H , RANZ E , SCHUTZ H
摘要： The brightness and density distribution of an object can be digitally measured photographically by exposing a light-sensitive photographic material at a dot screen or the like and to the object to be measured, and photographically processing the exposed light-sensitive material to produce equidensity images in which different densities of the object are differently represented.
摘要翻译： 物体的亮度和密度分布可以通过在点画面等曝光感光照相材料和被测定物体而进行数字测量，并照相处理曝光的感光材料以产生等距图像 对象的不同密度被不同地表示。
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公开(公告)号：US1979719A
公开(公告)日：1934-11-06
申请号：US65911833
申请日：1933-03-01
申请人： ERNST WEISSE
发明人： ERNST WEISSE
IPC分类号： G01J1/14
CPC分类号： G01J1/14
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公开(公告)号：US11118963B2
公开(公告)日：2021-09-14
申请号：US16959843
申请日：2018-12-20
申请人： SIGNIFY HOLDING B.V.
IPC分类号： G01J1/14
摘要： The invention provides a light indicator (100) for use in evaluating a quantity of melanopsin active radiation, the light indicator (100) comprising a light indicator element (110) comprising a sensing area (111), wherein the light indicator element (110) comprises a light reflecting element (120) configured to reflect at least part of light illuminating the sensing area (111) having one or more wavelengths selected from the wavelength range of an absorption band of melanopsin in the visible wavelength range and configured to absorb at least part of light illuminating the sensing area (111) having one or more wavelengths in the visible wavelength range outside the wavelength range of the absorption band of melanopsin in the visible wavelength range; and a non-sensing area (130) configured adjacent to the sensing area (111), wherein the non-sensing area (130) has an achromatic color having a lightness in the range corresponding to the lightness of shades of gray.
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公开(公告)号：US4588298A
公开(公告)日：1986-05-13
申请号：US556824
申请日：1983-12-01
申请人： Masao Nakamura
发明人： Masao Nakamura
CPC分类号： G03D13/007 , G01J1/14 , G03C5/02
摘要： A step tablet with which an amount of exposure or degree of exhaustion of a developing solution can very readily been determined. The step chart is composed of a number of rectangular patches of photosensitive material, arranged in an order of sensitivity. The steps are each marked with two indicia, one having an optical density corresponding, upon development, of a step of minimum optical density, while the other corresponds to a step of maximum optical density.
摘要翻译： 可以非常容易地确定显影溶液的曝光量或消耗程度的步骤片剂。 步骤图由感光材料的多个矩形片组成，按照灵敏度的顺序排列。 这些步骤各自标记有两个标记，一个在开发时具有对应于最小光密度的步骤的光密度，而另一个对应于最大光密度的步骤。
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公开(公告)号：US3205767A
公开(公告)日：1965-09-14
申请号：US20454662
申请日：1962-06-22
申请人： LEITZ ERNST GMBH
发明人： KLAUS WEBER , KARL LEONHARDT
CPC分类号： G01J1/14 , G02B21/0096 , G03B7/02 , G03B7/0807 , G03B27/80 , G03C5/04
摘要： 969,811. Photomicrography; exposure control. ERNST LEITZ G.m.b. H. June 22, 1962 [June 28, 1961], No. 24076/62. Heading G2A. A light beam intensity control device for use in photomicrography comprises a device of variable light absorption arranged for insertion in a light path of a microscope by means controlled by a light sensitive member provided for measuring the intensity of the light beam after it has passed through the object so that the intensity of the light beam be adjusted for the exposure of photographic material of given sensitivity for a given exposure time. In the embodiment shown, light from a source ,1 passes through an object 5 which is photographed on a photosensitive surface 13 through a shutter 14. The shutter can be set to one of two speeds, one comparatively short the other comparatively long. For each speed the intensity of the light beam falling on surface 13 is varied by increase of a movable grey wedge or polarizing means controlled by a servomotor 19 and a control device 18. The device 18 is in turn controlled by a light sensitive element 17 on to which the light beam may be directed by means of a pivoted mirror 15. The object may be viewed by means of a half silvered mirror 7, reticule 9 and eye-piece 8.
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公开(公告)号：US2371559A
公开(公告)日：1945-03-13
申请号：US49770343
申请日：1943-08-06
申请人： TURNEY EUGENE T
发明人： TURNEY EUGENE T
IPC分类号： G01J1/14
CPC分类号： G01J1/14
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公开(公告)号：US11879774B2
公开(公告)日：2024-01-23
申请号：US17274070
申请日：2019-09-02
申请人： SIGNIFY HOLDING B.V.
发明人： Marcel Lucassen , Tobias Borra , Dragan Sekulovski
CPC分类号： G01J1/50 , G01J1/0407 , G02B5/26
摘要： The invention provides a light indicator (100) for use in evaluating melanopsin active radiation in a flux of light, the light indicator (100) comprising a first light indicator element (110) comprising a first light reflective element (112) and a second light indicator element (120) comprising a second light reflective element (122), the light reflecting elements (112,122) having different wavelength dependencies of the spectral reflectivity, wherein the light reflecting elements (112,122) are selected to provide the same intensity of reflected light of two or more different types of light irradiating on the light indicator elements (110,120), wherein the two or more different types of light have different spectral power distributions in the visible wavelength range but having the same ratios of the melanopic flux and the luminous flux, wherein the ratio of the melanopic flux and the luminous flux of light is defined as
MEF
=
1.22
∑
λ
=
380
780
SPD
(
λ
)
m
(
λ
)
Δλ
∑
λ
=
380
780
SPD
(
λ
)
V
(
λ
)
Δλ
(
Eq
.
1
)
wherein SPD(λ) is the spectral power distribution of the light, m(λ) is the melanopic sensitivity function, and the V(λ) is the photopic sensitivity.-
公开(公告)号：US20200370952A1
公开(公告)日：2020-11-26
申请号：US16959843
申请日：2018-12-20
申请人： SIGNIFY HOLDING B.V.
IPC分类号： G01J1/14
摘要： The invention provides a light indicator (100) for use in evaluating a quantity of melanopsin active radiation, the light indicator (100) comprising a light indicator element (110) comprising a sensing area (111), wherein the light indicator element (110) comprises a light reflecting element (120) configured to reflect at least part of light illuminating the sensing area (111) having one or more wavelengths selected from the wavelength range of an absorption band of melanopsin in the visible wavelength range and configured to absorb at least part of light illuminating the sensing area (111) having one or more wavelengths in the visible wavelength range outside the wavelength range of the absorption band of melanopsin in the visible wavelength range; and a non-sensing area (130) configured adjacent to the sensing area (111), wherein the non-sensing area (130) has an achromatic color having a lightness in the range corresponding to the lightness of shades of gray.
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