This website uses cookies. Using this site will signify that you agree with all terms of our Privacy Policy.close

LumipluS™

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.

DOE on glass plate
SEM image (cross section)
Confocal laser microscopy
Calculated diffraction efficiency of dual-layer DOE

Fine structure molding

Plate molding with moth-eye surface
SEM image
Plate molding with nanoimprint patterns
SEM image

High transparency waveguide

Inquiries Concerning Products

Specialty Chemicals Business Sector
Optical Materials Division
TEL:+81-3-3283-4933 / FAX:+81-3-3283-4820