公开(公告)号：US3784309A

公开(公告)日：1974-01-08

申请号：US3784309D

申请日：1971-08-05

Applicant: COMPTEURS COMP D

Inventor： BRELOT R ,  TOURRET J

IPC: G01B11/02 ,  G01B11/14

CPC classification number: G01B11/026

Abstract: The variable relative distance d between the comparator and a test surface is measured by means of an optical system comprising a first glass-fiber bundle which directs a luminous flux to the surface and is surrounded by a second glass-fiber bundle which recieves the reflected flux and directs the flux to a receiver. The bundle of receiving fibers consists of three juxtaposed layers, namely a first layer which is adjacent to the emitting bundle and the fibers of which are directed towards a first receiver, a second intermediate layer in which 50 percent of the fibers are directed towards the first receiver and 50 percent of the fibers are directed towards a second receiver, and a third external layer of fibers directed towards the second receiver. The width of the intermediate layer is such that the value of d at which the signal of the first receiver is of maximum value is equal to the value of d at which the signal of the second receiver is located at the center at its linear range of variation.

Abstract translation: 比较器和测试表面之间的可变相对距离d通过包括第一玻璃纤维束的光学系统来测量，所述第一玻璃纤维束将光通量引导到表面并由第二玻璃纤维束包围，所述第二玻璃纤维束接收反射的通量 并将助焊剂引导到接收器。 接收纤维束由三个并置的层组成，即与发射束相邻并且其纤维指向第一接收器的第一层，第二中间层，其中50％的纤维指向第一 接收器和50％的光纤被引导到第二接收器，以及指向第二接收器的第三外部纤维层。 中间层的宽度使得第一接收机的信号为最大值的d的值等于第二接收机的信号位于其中心处的线性范围的d的值 变异。

公开(公告)号：US3719421A

公开(公告)日：1973-03-06

申请号：US3719421D

申请日：1971-12-10

Applicant: COMPTEURS COMP D

Inventor： POILLEUX J ,  TOURRET J

IPC: G01B11/02 ,  G01B11/03 ,  G01B11/24 ,  G01C3/08

CPC classification number: G01B11/026 ,  G01B11/24

Abstract: The optical device comprises a luminous source and an optical system for forming a primary image of the source on the surface whose position is to be determined. The optical system returns some of the light back from the primary image. A beam splitter is provided for splitting the returning light into two beams directed towards two secondary image points. Two optical elements are disposed respectively in these two beams, each optical element controlling the amount of light passing therethrough, and two photoelectric detectors are provided respectively behind the two optical elements to receive the light passing through. Preferably one of the optical elements is a field lens having a central screen, and the other optical element is a diaphragm having a central aperture of the same diameter as the screen. Alternatively both the optical elements can be constituted by field lenses each having a central screen.

Abstract translation: 光学装置包括光源和用于在要确定其位置的表面上形成源的主图像的光学系统。 光学系统从主图像返回一些光。 提供一个分束器，用于将返回的光分成两个指向两个二次图像点的光束。 两个光学元件分别设置在这两个光束中，每个光学元件控制通过光的量，并且两个光电检测器分别设置在两个光学元件的后面以接收通过的光。 优选地，一个光学元件是具有中心屏幕的场透镜，另一个光学元件是具有与屏幕直径相同的中心孔的光阑。 或者，两个光学元件可以由具有中心屏幕的场透镜构成。