| 摘要 |
<p>PURPOSE:To provide a lamp easy to identify its kind without pulling out the lamp from a sack. CONSTITUTION:A lamp base has a kind mark attached on the outer surface of the bottom face. A lamp has this lamp base connected to a bulb, and a lamp device is housed in a cylindrical sack. When the kind or rating of the lamp is examined, thus, it can be identified at a look only by observing the end surface of the base, and when the lamp is housed in the sack, particularly, it can be easily identified within a short time only by looking in through the opening part of the sack without pulling out the lamp from the sack for observation, and the formation of the mark can be also easily performed as in the past.</p> |
