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Development of green light filters based on high-resistance oxide glasses colored by transition elements
Glasses in the system Al 2 O 3 –P 2 O 5 –SiO 2 , which are suitable for the green light filters in traffic signal lights, were investigated. The glasses were required to satisfy the following requirements: transmission band maximum at λ max = 500 nm high heat-resistance, and low CLTE — (41 – 49) × ...
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| Published in: | Glass and ceramics 2012-05, Vol.69 (1-2), p.50-54 |
|---|---|
| Main Authors: | , , |
| Format: | Article |
| Language: | English |
| Subjects: | |
| Citations: | Items that this one cites Items that cite this one |
| Online Access: | Get full text |
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| Summary: | Glasses in the system Al
2
O
3
–P
2
O
5
–SiO
2
, which are suitable for the green light filters in traffic signal lights, were investigated. The glasses were required to satisfy the following requirements: transmission band maximum at λ
max
= 500 nm high heat-resistance, and low CLTE — (41 – 49) × 10
–7
K
–1
. Transition elements served as colorants; they were introduced into the batch as the oxides TiO
2
, V
2
O
5
, CuO, and MoO
3
in amounts 1 wt.%, as well as their pairs in different combinations. The EPR and optical spectra were investigated. It was shown that glass with the composition (wt.%) 55 P
2
O
5
, 17.1 Al
2
O
3
, 20 SiO
2
, 1.5 La
2
O
3
, 2 ZrO
2
, 2.5 B
2
O
3
, 1.5 MoO
3
, and 0.5 CuO can be recommended for use as heat-resistant green light filters. |
|---|---|
| ISSN: | 0361-7610 1573-8515 |
| DOI: | 10.1007/s10717-012-9412-6 |