| 摘要 |
<p>PURPOSE:To eliminate the need for spacing adjustment operation and achieve the improvement in the accuracy of spacing size by fastening an optical transmission body to the face plate of a CRT by way of a spacer of the thickness corresponding to the specified spacing. CONSTITUTION:The width size of a face plate 5 is extended to be overhung to the right and left from the funnel part 1a of a CRT1 and an overhang part 6a is provided to an optical transmission body 6 as well. Through-holes 5b, 6b of screws are pierced in the through-positions of the both portions of the overhang part 5a of the face plate and the overhang part 6a of the optical transmission body. The right and left mounting screws 7 inserted from the through-holes 6b are inserted into the through-holes 5b through short-pipe form spacers 8 formed to the specified length d and are fastened by nuts 9 from the back side. Since such constitution permits assembling of the optical transmission body 6 to the face plate 5 through smiple tightening work of the screws 7, the assembling work becomes simple and easy and the precise positioning may be doen.</p> |
