| 摘要 |
<p>Glazing panels (16) such as vehicle windscreens bonded to a supporting frame (7) are released by firstly arranging light energy delivery means (1) adjacent the panel and subsequently transmitting light or laser energy from the delivery means (1) through the panel thereby to effect release of the panel from the frame (7). The light, with a wavelength substantially in the range 300nm to 1500nm, may be pulsed according to a predetermined regime, between 1<I>ž</I>s to 100ms wherein the pulse frequency is substantially in the range of 0.1Hz to 10Hz and may be delivered by a discharge lamp having rapidly attenuating intensity, or quasi continuous wave pulsed laser. The mechanism of panel release may be by thermal degradation of the bonding material (8), cleavage of material at a surface of, or within the body of the panel, or a combination of such mechanisms. An electrical gas discharge apparatus can be used and may be controlled by the use of a manual trigger.</p> |
