LumipluS™
LumipluS™ is transparent resin with ultra-high refractive index and selectable curing method (heat or light curing).
LumipluS™ can be customized its refractive index, Abbe's No., viscosity and Tg.
High refractive index adhesive "LPK series"
LumipluS™ LPK series are high refractive index (nd=1.6-1.66) light curable adhesives. Their strong adhesion is derived from their flexibility. LPK can be light-cured under the air.
LumipluS™ LPK series can be used as index matching adhesives between high refractive index optical elements.
| Grade | LPK-2000 | LPK-2500 | LPK-3000 | LPK-3500 | |
|---|---|---|---|---|---|
| Feature | Light durability / Fast cure | ||||
| Low viscosity | High RI | High RI | High RI | ||
| Cured resin | Refractive index (nd, 25℃) |
1.624 | 1.627 | 1.645 | 1.656 |
| Abbe's No. (νd, 25℃) |
39 | 30 | 27 | 26 | |
| Yellowness index (YI, 0.25mm thick) |
0.3 | 0.6 | 0.7 | 0.8 | |
| Tg (℃, tanδ/DMS (10Hz)) |
51 | <30 | 39 | <30 | |
| Liquid resin (before curing) |
Viscosity (mPa・ s, 25℃) |
60 | 40 | 800 | 70 |
| Shrinkage (%) |
9 | 7 | 6 | 8 | |
| Curing method | light cure (365nm or 405nm) | ||||
| Curing time (sec) 50µm thick, 20mW/cm², 365nm LED |
10 | ||||
| Adhesion (Compression shearing, N/mm², 25℃) |
Float plate glass (JIS R3202) |
7 | - | 13 | 11 |
| White plate glass (with silane treatment) |
17 | - | 13 | 13 | |
| EP-6000 (HRI PC, nd=1.64) |
14 | - | >16 | 17 | |
| PC | 16 | - | >14 | 11 | |
| PMMA | 16 | - | 17 | 16 | |
| COC | 10 | - | 15 | 12 | |
| COP | 10 | - | 15 | 14 | |
| Development phase | Pilot | Pilot | Pilot | Engineering | |
Internal transmittance: 0.2mmt equiv.
LPK-2000 (high viscosity grade): light-cured under the air
High refractive index curable resin compositions
LumipluS™ LPQ/LPH/LPL are high refractive index and high transparency curable compositions. Light/thermal cure can be selected by changing the initiators.
LumipluS™ LPQ/LPH/LPL can be used for fine imprints such as diffractive optics.
| Grade | LPQ- 2000 |
LPQ- 1500 |
LPQ- 1600 |
LPQ- 1700 |
LPH- 1109 |
LPL- 1120 |
|
|---|---|---|---|---|---|---|---|
| Feature | Good structural transcripton | ||||||
| Fast cure | Standard | Standard | Low Abbe | High RI | High RI | ||
| Cured resin | Refractive index (nd, 25℃) |
1.617 | 1.591 | 1.621 | 1.626 | 1.709 | 1.730 |
| Abbe's No. (νd, 25℃) |
40 | 30 | 27 | 24 | 36 | 33 | |
| Yellowness index (YI, 2.5mm thick) |
1.2 (0.25mmt) |
5.3 (0.25mmt) |
- | - | 0.7 | 1.2 | |
| Haze (2.5mmt) |
<0.2 (0.25mmt) |
- | - | - | <0.2 | 0.4 | |
| Tg (℃, tanδ/DMS (10Hz)) |
115 | 113 | 135 | 121 | 114 | 96 | |
| Flexural modulus (GPa, 25℃) |
2.8 | 3.3 | - | 3.8 | 3.1 | 3.2 | |
| Thermal expansion (10-6/℃-1, 20～60℃) |
71 | 64 | - | 60 | 62 | 66 | |
| Liquid resin (before curing) |
Viscosity (mPa・ s, 25℃) |
900 | 3600 | 9000 | 36000 | 18 | 17 |
| Shrinkage (%) |
9 | 5 | 5 | - | 12 | 11 | |
| Curing method | light | light or thermal | |||||
| Curing time (sec) 50µm thick, 20mW/cm², 365nm LED |
10 | 30 | - | ||||
| Development phase | Commercial | Commercial | Commercial | Engineering | Pilot | Engineering | |
Internal transmittance
Diffractive Optical Element (DOE)Molding by SCIVAX corp.
Fine structure molding
High transparency waveguide
Inquiries Concerning Products
Specialty Chemicals Business Sector
Optical Materials Division
TEL：+81-3-3283-4933 / FAX：+81-3-3283-4820