公开(公告)号：US5010247A

公开(公告)日：1991-04-23

申请号：US418265

申请日：1989-10-06

Applicant: Martin P. Smith ,  Colin D. Saunders

Inventor： Martin P. Smith ,  Colin D. Saunders

IPC: B07C5/10

CPC classification number: B07C5/10

Abstract: Objects are dropped in succession through a viewing zone, where they are viewed in bright field illumination by three viewers along mutually orthogonal axes, using radiation of different wave-lengths (or viewing in rapid succession). The viewers sense the presented area. The presented areas are compared in a microprocessor in order to obtain a rough determination of the shape of the object. The presented areas can, for example, be summated to obtain a rough determination of the size of the object.

Abstract translation: 物体通过观察区域相继被放下，在三维观察者的明亮照明中，通过使用不同波长的辐射（或快速连续观察），沿着相互正交的轴观察它们。 观众感觉呈现的区域。 所呈现的区域在微处理器中进行比较，以便获得对象形状的粗略确定。 所呈现的区域可以例如被总结以获得对象大小的粗略确定。

公开(公告)号：US4645922A

公开(公告)日：1987-02-24

申请号：US784623

申请日：1985-10-04

Applicant: Christopher M. Welbourn ,  Martin P. Smith ,  Andrew D. G. Stewart

Inventor： Christopher M. Welbourn ,  Martin P. Smith ,  Andrew D. G. Stewart

IPC: B07C5/342 ,  G01N21/47 ,  G01J3/50 ,  G01J1/04

CPC classification number: G01N21/474 ,  B07C5/3425 ,  G01N2201/065

Abstract: In order to color sort objects such as peas or sweets, they are dropped in succession through two integrating spheres. In the first sphere, the object absorbs infra-red radiation and the peak reduction in infra-red flux is detected in order to provide a signal responsive to the size of the object. In the second sphere, the object is illuminated with white light and the peak reduction in flux is detected by at least three detectors for three colors determined by filters. To make the illumination more uniform in the sphere, there is a step around the sphere almost half way down, with light sources equi-spaced around the step. The size signal is divided into the respective color signal in a micro-processor to produce a size-corrected color signal.

Abstract translation: 为了对豌豆或糖果进行颜色分类，它们通过两个整合球体相继掉落。 在第一个球体中，物体吸收红外辐射，并检测红外线通量的峰值降低，以便提供响应物体大小的信号。 在第二个球体中，物体被白光照射，通过至少三个由滤光器确定的颜色的检测器检测通量的峰值降低。 为了使照明在球体中更加均匀，围绕球体的方向几乎一半下降，光源围绕台阶等距。 在微处理器中将尺寸信号分成相应的颜色信号以产生尺寸校正的颜色信号。

公开(公告)号：US4663522A

公开(公告)日：1987-05-05

申请号：US784622

申请日：1985-10-04

Applicant: Christopher M. Welbourn ,  Martin P. Smith

Inventor： Christopher M. Welbourn ,  Martin P. Smith

IPC: B07C5/342 ,  G01N21/59 ,  H01J40/14

CPC classification number: B07C5/366 ,  B07C5/3425 ,  G01N21/59 ,  G01N2201/065

Abstract: The apparatus measures the transmission of light in successive falling objects. A beam is projected, wide enough to bathe all the facing surface of the object. An integrating sphere is on the other side of the object and its inlet and outlet apertures provide cut-offs so that only a hollow cone of flux scattered from the object is trapped in the integrating sphere, this flux being measured by a detector. The detector is connected to a micro-processor whose output is a measure of the clarity of the object. When the object is not in the beam, the beam falls on a detector so that the reduction in flux sensed by the detector is a measure of the projected area of the object. The micro-processor divides the signal from the detector by the reduction in flux, thereby making the output substantially independent of the size of the object.

Abstract translation: 该装置测量连续落下的物体中的光的传播。 投射一个光束，宽到足以洗涤物体的所有面对表面。 积分球位于物体的另一侧，其入口和出口孔提供切口，使得只有从物体散射的中空锥体的锥体被捕获在积分球中，该通量由检测器测量。 检测器连接到微处理器，其输出是物体清晰度的度量。 当物体不在光束中时，光束落在检测器上，使得由检测器感测的通量的减小是物体的投影面积的量度。 微处理器通过通量的减少来分离来自检测器的信号，从而使输出基本上与物体的尺寸无关。