OPTICAL HEAD, METHOD OF MANUFACTURING THE SAME AND OPTICAL RECORD PLAYBACK EQUIPMENT

摘要

Even when binder repeats expansion and contraction by the time progress after a reliability test or mounting, and change of circumference environment, in the offered optical head, a gap of optical axis and exfoliation of binder are not generated. ;The optical head indicated has the housing in which the optical detector holder-board 1 holding the optical detector 3 which detects the catoptric light beam reflected in respect of information record of an optical disc is attached. ;With this optical head, the optical detector holder-board 1 has through-holes 1a and 1b having the flat portions 11 and 12 inside, and the supports 2a and 2b having the flat portions 15 and 16 outside are formed on housing. ;The optical detector holder-board 1 is inserted in supports 2a and 2b by the through-holes 1a and 1b, and the binder 4 and 5 is filled up into the space 31 or the space 32, and is fixed. ;The space 31 is formed between each flat portion 15 of supports 2a and 2b, and the flat portion 11 of the through-holes 1a and 1b, and the space 32 is formed between each flat portion 16 of supports 2a and 2b, and the flat portion 12 of the through-holes 1a and 1b.