Place of Origin:
china
Brand Name:
YB Marked Cards
Certification:
ISO9001
Model Number:
Infrared Contact Lenses
Product Properties:
Infrared contact lenses, also known as invisible ink marked cards contact lenses, can detect the back marks of each marked playing card. These lenses utilize special filters that allow wearers to see IR and UV light markings invisible to the naked eye.
When wearing these contact lenses, you'll see luminous ink markings (numbers and suits) clearly on card backs while maintaining normal vision of your surroundings. The lenses preserve your natural eye color, making them completely undetectable to others.
| Parameter | Professional 4mm IR Lenses | Standard IR Lenses | Economy Grade Lenses |
|---|---|---|---|
| Filter Diameter | 4.0 mm (Precision Fit) | 6.0 mm - 9.0 mm | Full Pupil Cover |
| Core Technology | Sandwich IR Filter Layer | Surface Coating | Tinted Dye |
| Oxygen Permeability | High (DK/t > 20) | Medium | Low |
| Concealment | Extreme (Invisible) | Medium (Red Tint) | Low (Visible Darkening) |
| Water Content | 42% - 45% | 38% | 35% |
| Effective Lifespan | 1 Year (Proper Care) | 6 Months | 1 - 3 Months |
Selecting the correct Infrared Contact Lenses is a balance between technical compatibility and physiological comfort:
Filter Diameter vs. Pupil Size: The 4mm diameter is the "Golden Standard" for concealment. It covers only the pupil, ensuring that your natural iris color remains visible, which prevents the "red-eye" effect common in larger lenses.
Material Quality: Look for HEMA (Hydroxyethyl Methacrylate) based materials. These ensure high water content and flexibility, which are critical for maintaining comfort during 8+ hour gaming sessions.
Ink Compatibility: Ensure the lenses are calibrated for the 700nm-950nm spectrum. This ensures they can read all major brands of luminous and UV-marked cards (Copag, Bicycle, etc.).
Packaging Integrity: Professional-grade lenses must be vacuum-sealed in medical-grade glass vials with a lot number and expiration date to ensure sterility.
| Price | Contact us | Inventory | In stock |
|---|---|---|---|
| Life span | More than 1 year | Shipping | Fedex, DHL, UPS |
| Diameter | 9mm, 7mm, 4mm | Payment | Western Union, Bank Transfer |
Designed for extended poker sessions, these premium contact lenses offer exceptional comfort without side effects. Each purchase includes detailed instructions for proper wear and maintenance.
With proper care, one pair can last approximately one year, making them a durable solution for professional poker players.
Q1: Why is the 4mm filter size significant for concealment?
A: A 4mm filter is specifically designed to align only with the human pupil under indoor lighting. By not overlapping with the iris, the lens remains completely invisible to other players, even at close range.
Q2: Can these lenses read both UV and Infrared marked cards?
A: Yes. These lenses are engineered with a wide-spectrum filter that detects both luminous UV ink and Infrared markings, providing versatility across different types of marked decks.
Q3: Will wearing these lenses affect my normal vision?
A: You will see a slight purple or rose-colored tint, similar to wearing light sunglasses. However, your clarity and ability to see the room and other players remain excellent.
Q4: How do I store and clean these specialized lenses?
A: They must be stored in professional multi-purpose contact lens solution. Never use tap water. It is recommended to rub the lenses gently in the palm of your hand to remove protein deposits after each use.
Q5: What lighting works best for the 4mm IR Lenses?
A: They are most effective under Yellow Incandescent light or natural sunlight. Avoid pure blue LED lights, as they lack the infrared wavelength needed to make the markings "glow."
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