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Zero Internal Stress
Manufacturing technology is designed to eliminate internal stress in the lens blank.
WELL-SOURCE (HK) TECHNOLOGY LIMITED
ZERO STRESS
PC LENS BLANKS
Eliminate Birefringence. See Clearer. Live Comfortably.
A new generation of PC lens blanks designed to eliminate internal stress and minimize stress-related birefringence — for optical laboratories that demand more from their material.
✓ Zero Internal Stress✓ Zero Stress-Related Birefringence✓ Professional Rx Processing
ZERO
STRESSPC
STRESSPC
PRODUCT FLYER · FULL VISUAL
The story in one picture.
See the problem, the Zero Stress solution, technical comparison and target applications at a glance.
01 / THE TECHNOLOGY
Start with the source of the problem.
Conventional PC lens blanks can develop residual internal stress and molecular-chain orientation during molding. Stress can contribute to birefringence and optical concerns in demanding applications.
01PC MATERIALHigh-performance optical polymer
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02CONTROLLED FORMINGAdvanced forming & stress control
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03ZERO INTERNAL STRESSStress controlled at the source
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04RX PROCESSINGDesigned for stable optical processing
02 / WHY ZERO STRESS
More than PC.
A better starting point.
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Reduced Birefringence
Designed to minimize stress-related birefringence and its potential optical effects.
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Clearer Visual Experience
Designed to reduce ghosting, distortion and visual discomfort in demanding applications.
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Better for High RX
Particularly relevant where high prescription and astigmatism make optical precision more critical.
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Polarized Applications
Designed for evaluation with polarizing films where stress-related effects can be more noticeable.
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Keep the PC Advantages
Lightweight construction and high impact resistance remain fundamental PC benefits.
03 / FOR OPTICAL LABORATORIES
Designed for the work
you actually do.
Test Zero Stress PC using your existing production process and compare the results with your current PC blanks.
RX SURFACING01
RIMLESS / DRILL-MOUNT02
POLARIZED LENSES03
TINTED / PHOTOCHROMIC04
HIGH RX / HIGH ASTIGMATISM05
04 / TECHNICAL POSITIONING
Conventional PC vs. Zero Stress PC
| Feature | Ordinary Injection-Molded PC | Zero Stress PC |
|---|---|---|
| Internal stress | May be present | Designed to eliminate |
| Stress-related birefringence | Can be present / intensified by stress | Designed to minimize |
| Optical consistency | Depends on molding & stress distribution | Designed for stable evaluation |
| Target applications | General PC applications | Demanding Rx & specialty applications |