| 摘要 |
<p>PURPOSE:To secure the easy and accurate control for the tape running state in a short time by observing the images across the lead of the rotary head cylinder wound by the magnetic tape through magnification with the reflector and then giving the necessary control based on the above observation. CONSTITUTION:The optical images formed by the irradiation light at both ends parts of tape guide lead 8 of rotary head cylinder 1 are magnified along with the optical image of the picture recording tape wound to cylinder 1 to be displayed on the TV monitor via object lenses 15a and 15b, minute reflectors 13a and 13b provided to reflector holding arms 19a and 19b' of sleeves 21a and 21b, and others. Then tape guides 2 and 3 are controlled while observing the display on the TV monitor, and thus the tape winding to the cylinder coincides between both leads. As a result, the tape running can be controlled quicky in an easy and accurate way.</p> |
