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1.499 series

Refractive indexdetermines how much light is bentwhen entering a material. It directly influences thickness of optical lens, the bigger, the thinner.

Abbe valueis a measure of the material's dispersionin relation to the refractive index, high values indicating low dispersion.

 

1.499 Single Vision Lens


Material: CR-39

Abbe value:58

Transmission: Over 93%

Specific Gravity: 1.32

Available: Non-coating, hard-coating, multi-coating


I. 1.499 SVSemi-finished Lens


i. Diameter(mm):65, 70, 75, 80, 85


ii. Base: 50, 100, 200, 300, 400, 500, 600, 700, 800, 900, 1,000




I. 1.499 SVFinished Lens


i. Diameter(mm):60, 65, 70, 75, 80, 85


ii. PlusPower Range: 0.00~+6.00/0.00~-6.00,


iii. Minus Power Range: 0.00~-8.00/0.00~-6.00


 

 

 

 

1.499 Bifocal Lens


Material: NK-55

Abbe value: 35

Transmission: Over 96.5%

Specific Gravity: 1.28

Diameter: 65/28mm (F), 70/28mm (SF)

Available: Flat Top, Round Top, Blended Top

Non-coating, hard-coating, multi-coating



1.499 Bifocal Finished Lens




Power range

0.00~-200

0.00~+300

Add available:

1.00~3.50

Flat Top


Round Top


Blended Top



 

1.499 Bifocal Semi-finished Lens











Base

  50  

200

400

600

700

800

1000

1200

1400

Add available:

1.00~3.50

Flat Top


Round Top







Blended Top







 

 

 

 

 

1.499 Progressive Lens

Semi-finished: Preview , Short (12+2), Long, Short (14+2)

Finished: Long, Short (14+2)

Finished Power Availability:-2.00 ~+3.00 Add+1.00 ~+3.50.

Short corridor

Low distortion

Maximum Astigmatism


 

Preview

Short(12+2)

Long

Short(14+2)

圖片1.png

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l Diameter:75mm

l Diameter:75mm

l Diameter:75mm

l Diameter:75mm


l Width of Addition Area:18mm

l Short corridor (14mm to full addition power)

l Individual designs for left and right eyes


 


1.499 Semi-finished Progressive Lens







Corridor

Fitting Cross

 (up from center)

Distance Circle

up from center

Near Area Circle

down the center

Minimum fitting height

Base

Curves

Addition Powers

(in 0.25D steps)

Preview

+4.0mm

+10.0mm

9.0mm

14mm

150, 350,

575, 775

1.00 ~3.25

Long

+2.0mm

+8.0mm

17.0mm & 80 degree &  to the lens side

20mm

200,400,

600,800,

1.00~3.50

Short(12+2)

+2.0mm

+8.0mm

12.0mm

15mm

150, 350,

575, 775

1.00 ~3.00

Short(14+2)

+2.0mm

+8.0mm

14.0mm

17mm

200,400,

600,800,

1.00~3.50

 


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