| 摘要 |
<p>The ultraviolet tunnel hardening unit (1), includes a UV lamp inside its casing (2). The lamp holder is coded in its formation, such that only use with a matching, correspondingly-coded lamp formation is permitted. The UV wavelength is 380 nm. Various forms of matching, coded formations are described, one example being a holder projection fitting into a matching lamp recess or vice versa. A suitable lamp is also claimed.</p> |
