Patent ID: 7755269

Claim:
A spacer which holds a gap between insulating substrates at a predetermined value, the gap forming a decompressed space or an evacuated space, the spacer comprising phosphate glass containing a transition metal element, and the spacer bridging the insulating substrates, wherein the spacer comprises at least one of (a) 20 to 40 wt % of V 2 O 5 , 30 to 45 wt % of P 2 O 5 , 1 to 20 wt % of WO 3 , and 5 to 20 wt % of BaO, (b) 20 to 45 wt % of WO 3 , 20 to 40 wt % of P 2 O 5 , 10 to 25 wt % of V 2 O 5 , and 10 to 25 wt % of BaO, (c) 20 to 45 wt % of WO 3 , 25 to 40 wt % of P 2 O 5 , 10 to 25 wt % of V 2 O 5 , 10 to 25 wt % of BaO, and 5 to 15 wt % of MoO 3 , and (d) 1 to 10 wt % of SrO, and 1 to 5 wt % of Gd 2 O 3 , and 0.1 to 1.0 wt % of CeO 2 .