Type

Thickness

(mm)

A[2856k]

D65

Chemical Stability

ND

α×10-⁷

(/^oC)

Tg 

(/^oC)

Ts

(/^oC)

S

x

y

Y

x

y

Y

DA

DW

JB400

2

0.45

0.41

96.3

0.316

0.336

94.2

1

1

1.632

95

497

555

3.65

JB420

2

0.455

0.414

93.1

0.323

0.346

90.8

2

3

1.632

95

497

555

3.69

JB450

2

0.492

0.461

94.7

0.401

0.488

90.7

1

3

1.523

103

527

605

2.64

Type

Thickness

(mm)

λtj (nm)

λ0 (nm)

Tλ0 (%)

K

JB400

2

400±10

560

≥86.0

≥0.6

JB420

2

420±10

560

≥86.0

≥0.6

JB450

2

450±10

560

≥89.5

≥0.6

Type

Bubble

Stripe

Stress

JB420

C-B

3C

3

JB450

C-B

3C

3