POSTURE DETECTION DEVICE OF OPTICAL SENSOR TYPE AND HORIZENTAL POSTIRE STABILIZER FOR MODEL PLANE

PROBLEM TO BE SOLVED: To make it possible to easily position and apply pieces onto a substrate by obtaining a steady reaction irrespective of weak light or bright light. SOLUTION: A housing 3 has four lighting windows 4 processed on its side walls at right angle one another. A substrate 2 is attached onto the upper face of a mount 6 formed in the level higher than the lighting windows 4. Onto the bottom face of exposed four corners of the substrate 2, optical conductive cell(s) 7 of which sensor face 7a facing downward is put parallel to a line connecting two facing lighting windows 4, 4 are fixel. Most of the light entered through the lighting windows 4 indirectly reaches the sensor face 7a by reflecting in inside of the housing. As the output difference between two facing optical conductive cells 7 is less than ever, it is enabled to have a steady attitude control by reacting accurately even under weaker light in subset, sunrise or in winter time when visual angles against the sun are small. The terminals 8 of the conductive cell 7 are put right angle to the face of the substrate 2, thus accurate positioning onto through holes on the substrate 2 as well as easier application of pieces are enabled.