Better and more sophisticated   ~More sophisticated correction delivers comfortable vision~

Adults today are more motivated to enjoy life in their own way and use their time more wisely. The Pursuit series helps to bring greater joy and enrich your everyday life by delivering comfortable vision that combines advanced design with many different technologies. The top model of the series, Pursuit AC-X, has been launched and achieves a good balance in vision between both eyes. Pursuit AC-X incorporates the world’s first Zone design, which makes both your sight and eyes look beautiful, and delivers comfortable vision with a more sophisticated level of correction.

Pursuit AC-X basic design<Cross Surface Design ® (Double-sided Control Design)>

Cross Surface Design® (Double-sided Control Design) is the latest design that has pursued more natural and comfortable vision than ever before by controlling the shape of the back surface and front surface of the lenses with advanced technology.
You will be even less susceptible to feeling the sways that occur when you move your face because distortions on the lens side are reduced. Moreover, it is possible to get an even more natural vision closer to the real thing because near-distance magnification is increased for those with myopia and magnification is reduced for those with hyperopia.

Natural vision with few sways and distortions

It is possible to further reduce sways and distortions from lenses with the traditional back-surface progressive + back-surface aspheric design by adopting the Cross Surface Design®.

S+4.00 ADD2.00  Corridor length14mm
Photography of actual lenses.

The photograph is an image that shows differences in fields of vision

Near distance magnification improvement and near distance aspect ratio improvement

When viewing the near distance with lenses for those that have myopia

When everything looks smaller and collapsed, there is correction to a vision closer to the real thing.

When viewing the near distance with lenses for those that have hyperopia

When everything looks bigger and stretched out, there is correction to a vision closer to the real thing.

The photograph is an image that shows differences in fields of vision

near distance aspect ratio:The aspect ratio when viewing squares with the near distance portion of progressive lenses

Pursuit AC-X features

<Real site correction>

Real site correction

The balance in vision is improved by reducing the difference in the vertical additional power when there is a difference between right and left-eye powers, and by also correcting the horizontal prism effect considering the front angle of frame.

<ZONE Design>

ZONE Design

<Reflection of 3D Frame Shape>

Reflection of 3D Frame Shape

Aberration correction reflects individual data that was determined with the frame on the eye. This makes the lenses easier to wear.

<Aspheric Adjustments according to Dioptric Power>

Aspheric Adjustments according to Dioptric Power

It is possible for customers with lenses of all powers to experience an even wider field of vision and a more comfortable fit without variations in the optical performance due to the lens power.

Previous lens

Previous lens

With ordinary progressive lenses, a common semi-finished blank(※) is used at each base curve division, resulting in differences in optical performance.

Semi-finished lens material with shaping on one side completed, leaving the other side to be processed when an order is placed.

Aspheric Adjustments according to Dioptric Power

Aspheric Adjustments according to Dioptric Power

Pursuit AC-X provides a wider field of vision and comfortable fit to customers needing all kinds of power with no difference in optical performance caused by power.

<Advanced aspheric design>

Advanced aspheric design

There is a significant improvement on the narrowness of the field of vision for those with astigmatism compared to traditional lenses by performing aberration correction in all 360° directions with consideration for “Listing’s Law” that determines the posture of the eyeball when turned toward one’s line of sight in various directions.

<Curve Pairing system>

Curve Pairing system

Appearance is automatically adjusted to match the curve while maintaining excellent optical performance even if the power difference between the left/right lenses is great with a differing base curve.

Curve Pairing system

<Design types>

Design types

Three types of design are available to better fit your lifestyle.

Lens appearance

Beautiful fit in small frames

  • Previous lens
  • PursuitAC-X

The photograph is an image that shows features.

Pursuit AC-X is designed in detail by computer to match not only the eyesight of the user, but also factors such as lifestyle and frame shapes. Pursuit AC-X features short progressive corridors of 10mm, 12mm and 14mm, and this means that the lens can be neatly accommodated in shallow frames, an achievement difficult to realize with previous progressive lenses.

Thin, lightweight and comfortable to wear

  • Previous lens
  • 1.60 lens
  • 1.67 lens
  • 1.74 lens

This is an image of S-6.00. SEIKO's previous lens used 1.50 monomer.

The numerical value that indicates the ability of the lens material to refract light is called the "refractive index" and the higher this index, the thinner the lens. Pursuit AC-X features a lineup of 3 types of material: Ultra-high 1.74 refractive index material, high index 1.67 material and 1.60 index material. In addition, back surface aspheric design is used to achieve a thin lens. The synergy between material and design enables a lens that is thinner and lighter than previous lenses.

Adopted technologies

  • ZONE Design

Thinness / coating

Product Name Thinness UV Cut off Reflection Resistance Contamination Resistance Scratch Resistance Anti-static coating Reducing blue light Blocking UV rays reflected from the back Fogging Resistance
Pursuit AC-X 1.74 ★★★★★ 標準 標準 標準 OP OP OP OP OP
Pursuit AC-X 1.67 ★★★★ 標準 標準 標準 OP OP OP OP OP
Pursuit AC-X 1.60 ★★★ 標準 標準 標準 OP OP OP OP OP

S:Standard specifications OP:Option


Product Name Refractive Index Specific Gravity Abbe Value Progressive Power Corridor (mm) Quality Assurance Mark
Pursuit AC-X 1.74 1.74 1.47 33 10 12 14
Pursuit AC-X 1.67 1.67 1.36 32 10 12 14
Pursuit AC-X 1.60 1.60 1.30 42 10 12 14