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Apparatus for studying the rapid variations of the intensity of a source of light
Apparatus for studying the rapid variations of the intensity of a source of light
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机译：用于研究光源强度的快速变化的设备
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621,482. Optical apparatus. SOC. ANON. POUR LES APPLICATIONS DE L'ELECTRICITE ET DES GAZ RARES-ETABLISSEMENTS CLAUDE-PAZ ET SILVA. Dec. 7, 1945, No. 33203. Convention date, March 21. [Class 97 (i)] A device for studying the rapid periodical variations, in the course of time, of the intensity of a light source, comprises a light-transmitting or reflecting device forwarding light rays emitted by the source, means for imparting to the source and to the said device a relative rotary movement in synchronism with the excitation of the source and such that the light rays describe surfaces of revolution having a common axis and fall upon a screen centred on this axis. As shown in Fig. 1, an electric lamp, enclosed in a casing 1, which is apertured at 2, is connected to a source of alternating current so that the intensity of the emitted light varies continuously during each half period. This light falls on a disc 7, which is apertured at 8 and 9 and is rotatable by an electric synchronous motor 3 in synchronism with the excitation of the source, e.g. by energizing the motor from the same source of alternating current as the lamp. Thus, on a screen or photographic plate 10 there is formed a circle of variable brightness, the brightness of each point on the circumference of the circle corresponding to a particular intensity of the emitted light. When the photographic plate is used, the chinks 8, 9 are in the form of curvilinear triangles so that the respective lengths of circular arcs, which are bounded by two sides of the triangle and are concentric with the axis of rotation of the disc 7, increase as the radius of the circles decreases. In another form, a condenser may be disposed in front of the lamp and the emitted light rays may be successively reflected by two rightangled prisms or plane mirrors, one of which is mounted on the shaft of an electric motor, while the other is carried at one end of an arm mounted at its centre on the motor shaft. Another embodiment is described wherein light is focused on an area of a ring of phosphorescent material carried by a rotating plate so that a ring of light of variable intensity is formed by a lens system on the screen or photographic plate. In the Specification as open to inspection under Sect. 91 the embodiment shown in Fig. 5 (Cancelled) is described. This comprises a cylinder 16, apertured at 17 and 18 and rotatable about an axial light source 15. The excitation period of the source 15 is equal to the time of revolution of the cylinder 16 and observation is made through a cylinder 19. Cylinder 19 may be in the form of a photographic plate. This subject-matter does not appear in the Specification as accepted.
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机译：621482。光学仪器。 SOC。安农浇铸应用DE L'ELECTRICITE ET DES GAZ RARES-ETABLISSEMENTS CLAUDE-PAZ ET SILVA。 1945年12月7日，第33203号。会议日期，3月21日。[类别97（i）]一种用于研究随时间变化的光源强度的快速周期性变化的装置，其中包括：传输或反射设备，以转发由光源发出的光线，以及与光源的激发同步地将相对旋转运动赋予光源和所述设备的装置，以使光线描述具有共同轴线的旋转表面，并且落在以该轴为中心的屏幕上。如图1所示，将电灯封闭在一个开有2个孔的壳体1中，该电灯与交流电源相连，从而使发射光的强度在每个半周期内连续变化。该光落在圆盘7上，该圆盘在8和9处开孔，并且可以由电动同步电动机3与例如光源的激发同步地旋转。通过从与灯相同的交流电为电动机供电。因此，在屏幕或照相板10上形成了亮度可变的圆，该圆的圆周上的每个点的亮度对应于所发射的光的特定强度。当使用照相印版时，凹口8、9呈曲线三角形的形式，从而圆弧的各自的长度由三角形的两侧界定并且与盘7的旋转轴线同心。随着圆半径的减小而增加。在另一种形式中，可以在灯的前面设置聚光器，并且发射的光线可以被两个直角棱镜或平面镜相继反射，其中一个直角棱镜或平面镜安装在电动机的轴上，而另一个直角棱镜或平面镜安装在电动机的轴上。臂的一端，其一端安装在电机轴上。描述了另一个实施例，其中光聚焦在由旋转板承载的磷光材料的环的区域上，从而通过透镜系统在屏幕或照相板上形成可变强度的光环。在本规范中规定为开放检查。参照图91，描述了图5所示的实施例（已取消）。它包括圆柱体16，该圆柱体16具有17和18的孔径，并且可绕轴向光源15旋转。光源15的激发周期等于圆柱体16的旋转时间，并且通过圆柱体19进行观察。圆柱体19可以采用照相版的形式。该主题未在接受的规范中出现。
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