Egg inspecting apparatus

Abstract

Abstract PURPOSE:To make it possible to automatically detect an irregular egg with high reliability, by using a first detecting part having light receiving sensitivity with a wavelength range of light absorbed with the egg yolk and a second detecting part having light receiving sensitivity within a visible light wavelength range from which the former wavelength range is removed. CONSTITUTION:A high pressure mercury lamp having a continuous spectrum in a wavelength range of, for example, about 400-700nm is used in a light source 11. A detection means 4 consists of a condensing lens 41, a beam splitter 42 and first and second detection parts 6, 7. The first detecting part 6 detects light within a wavelength range of 400-500nm absorbed with the egg yolk and a second detection part 7 detects light within a wavelength range of 530-700nm. A comparator circuit 51 compares the output signal from an amplifier 63 and a predetermined threshold value while a comparator circuit 52 compares the output signal from an amplifier 73 and a predetermined threshold value and, when respective output signals exceed threshold values, a detection signal is outputted. A judge circuit 53 judges the presence and absence of the mixing of the egg yolk into the white on the basis of the compared results of the circuits 51, 52.

Inventors

• 👤 Koichi Akiyama
• 👤 秋山　広一

Bibliographic Details