Abstract
The following quote was obtained by the news editors from the background information supplied bythe inventors: “When foods are handled in a factory or the like, a technique of detecting a specific partincluded in the foods, foreign matter mixed into the foods, and the like may be needed. For example, adevice disclosed in Patent Document 1 can be mentioned as an example of such technology. This deviceis a device for inspecting an object or a commodity and includes a means configured to illuminate a linecrossing the object or the commodity and an observation means configured to observe the whole line or anextension of the line and to detect radiation of a narrow band emitted from a region of a specific objector commodity that is excited by the radiation. An observation system thereof includes a narrow band-passfilter means configured to substantially filter out wavelengths other than the narrow frequency band at aspecific incidence angle, a detection means configured to detect radiation passing through the filter means,and a means configured to block light at an angle other than the incidence angle that passes through thefilter means and reaches the detection means. Patent Document 1 discloses that this device can be appliedto inspect freshness or presence of bones of fish that has been widely cut (using ultraviolet light).”
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