Oblique illumination for video rim inspection

Details Oblique illumination for video rim inspection Oblique illumination for video rim inspection

1986-09-11

1988-03-15

Britton, Howard W.

Facsimile and static presentation processing

Facsimile

Specific signal processing circuitry

250223B, 356240, 356428, H04N 718

Patent

active

047316497

ABSTRACT:
An illumination system for video inspection of transparent and translucent bodies to be inspected sequentially while moving along a conveying path has a light source and light-transmitting block partly enclosing over the end of the bodies moving on the path. A light source, especially one or more strobe lamps is located along the conveying path, and light from the source is directed inwardly by the block to a diffuse surface defining side walls of a channel through which rims move along the conveying path. The diffuse side walls direct light inwardly and obliquely of the rim. The rim can be illuminated on the fore and aft sides in the channel by light emission from an additional block of material forming a connection web between the inwardly-reflective blocks, tending to evenly illuminate the rim.

REFERENCES:
patent: 3386579 (1968-06-01), Schulge et al.
patent: 3631255 (1971-12-01), Gender
patent: 4002823 (1977-01-01), Van Oosterhout
patent: 4026414 (1977-05-01), Ellinger
patent: 4208130 (1980-06-01), Saconney et al.
patent: 4213042 (1980-07-01), Beach et al.
patent: 4391373 (1983-07-01), Wiggins
patent: 4454542 (1984-06-01), Miyazawa
patent: 4460940 (1984-07-01), Mori
patent: 4606635 (1986-08-01), Miyazawa et al.

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