2026 Thermal Scope Sourcing Guide: 50 Crucial FAQs on OEM Customization & Tier-1 Manufacturing
Part 1: Technology
Focus: Proving your tech matches the industry leaders.
What is the advantage of your sensors compared to European brands?
- Answer: We utilize premium sensors (the same grade as InfiRay) with NETD <20mK, providing superior contrast in high-humidity or foggy conditions， even 15mK sensor
Why is a Dual Field of View (DFOV) lens better than digital zoom?
Think of digital zoom as taking a photograph and using “pinch-to-zoom” on your phone: you are just stretching the existing pixels, which leads to a grainy, blurry image.A DFOV lens, however, is like switching from your naked eye to a pair of binoculars; it physically changes the optics to put more “pixels on target.”
How does the 12μm pixel pitch impact identification range?
The primary way a 12μm pixel pitch impacts Identification Range—the distance at which you can distinguish specific features (like whether a person is carrying a tool or the difference between a coyote and a dog)—is by increasing the pixel density on target compared to older 17μm sensors
Is 50Hz refresh rate sufficient for high-speed tracking?
Yes, a 50Hz refresh rate is generally considered the industry standard for high-speed tracking in professional thermal optics. While “higher is better” is a common rule, in the context of thermal imaging, 50Hz sits at the “sweet spot” where movement appears fluid to the human eye without the severe data processing or export restrictions of ultra-high-speed sensors.
What is the light transmission rate of your Germanium lenses?
The light transmission rate of a Germanium (Ge) lens depends heavily on whether it has been treated with Anti-Reflective (AR) coatings. Because Germanium has an exceptionally high refractive index (approximately 4.0), it acts almost like a mirror if left uncoated.
- Uncoated vs. Coated Transmission
Uncoated Germanium: Transmits only about 45% to 47% of infrared light. The other ~53% is lost to surface reflection.
AR-Coated Germanium: This is the standard for high-end thermal optics. High-quality AR coatings bring the transmission rate up to 94% – 98% within the targeted spectral band (typically 8–12μm for LWIR).
DLC (Diamond-Like Carbon) Coating: Often used on the front element for durability, this slightly reduces transmission compared to a standard AR coating but still maintains a high rate of 85% – 92% while protecting the lens from scratches and environmental damage.
- Spectral Efficiency
Germanium is preferred because its transmission is highly stable across the “atmospheric windows” used for thermal imaging:
MWIR (Mid-Wave): 3–5μm
LWIR (Long-Wave): 8–12μm (The most common for commercial/tactical thermals)
- The “Thermal Runaway” Limit
It is important to note that Germanium’s transmission rate is temperature-dependent.
Below 100°C: The lens maintains its high transmission rates.
Above 100°C: The material begins to absorb its own heat (thermal runaway).
At 200°C: Germanium becomes effectively opaque, meaning it will block all incoming thermal radiation and the camera will go “blind.”
Part 2: Technical Excellence (Questions 11-20)
What is the difference between 384×288 and 640×512 resolution in the field?
At 500 meters, a 640 sensor allows you to identify specific features (like the antlers of a deer), whereas a 384 sensor may only show a heat signature. It effectively doubles your digital zoom clarity.
Why do you use 12μm pixel pitch instead of 17μm?
12μm technology allows for a higher magnification in a smaller lens size and provides a tighter, more detailed image for long-range target acquisition.
Does a 50Hz refresh rate cause lagging?
50Hz will absolutely not cause any delay; it already provides extremely smooth motion. The introduction of 60Hz is primarily to match high-performance digital displays and meet the demands of extremely high-speed motion.
Instead of focusing on upgrading from 50Hz to 60Hz, it’s better to check if the device supports ‘shutterless’ technology. A 60Hz thermal imager that automatically experiences stuttering (NUC) actually carries a much higher risk of ‘delay’ at critical moments than a 50Hz shutterless thermal imager that remains smooth and lag-free throughout its operation.
What is the lifespan of the Thermal Sensor?
Our Vanadium Oxide (VOx) sensors are rated for over 10,000 hours of operation. Under normal hunting or security use, the core tech will last for decades.
Can I use the thermal scope during the daytime?
Yes. Unlike traditional night vision (IIT), thermal sensors are not damaged by sunlight. They are highly effective during the day for spotting camouflaged targets in thick brush.
How many color palettes do your devices support?
Typically 5 to 7 modes, including White Hot, Black Hot, Red Hot, Ironbow, and “,” which is optimized for rapid spotting.
What is the maximum detection range for a human-sized target?
Depending on the lens size (e.g., 35mm or 50mm), our high-end models can detect heat signatures up to 2,500 meters and identify targets up to 600-800 meters.
Do your scopes support internal video recording with audio?
Yes, most models include 32GB or 64GB of internal storage with e-compass and audio recording for a full “social-media-ready” hunting experience.
How does the “Shutterless” technology (if applicable) work?
It uses an algorithm to calibrate the image continuously without the “click” sound or screen freeze associated with traditional NUC (Non-Uniformity Correction).
Is the lens made of real Germanium?
70% of our thermal optics use pure Germanium lens, which is essential for maximum infrared light transmission.
Currently, high-end thermal imaging scopes worldwide are undergoing technological upgrades. Previously, high-end thermal imaging scopes used pure germanium lenses due to their high refractive index; however, now, due to restrictions on the export of raw materials, top brands (such as InfiRay, Pulsar, and Guide) are using high-performance chalcogenide glass.
| Feature | Germanium (Ge) | Chalcogenide Glass (IRG/GASIR) |
|---|---|---|
|
Refractive Index |
~4.0 (Extremely High); enables thinner lenses with superior light convergence. |
~2.4 - 2.8 (Moderate); requires thicker lenses or complex multi-element designs for equivalent speed. |
|
Transmission Rate |
Exceptional (Single-Crystal); the gold standard for crisp, high-contrast thermal imagery. |
Good; heavily reliant on high-end AR coatings to prevent loss of contrast. |
|
Thermal Stability |
Poor; Refractive index drifts significantly with heat; becomes opaque above 100°C. |
Excellent; High thermal stability; ideal for Athermalized Designs (maintains focus without mechanical adjustment). |
|
Manufacturing |
SPDT (Single Point Diamond Turning); expensive, slow, and labor-intensive. |
Precision Glass Molding; high-volume efficiency, scalable, and cost-effective. |
|
Supply Chain |
High risk; subject to Strategic Export Controls and raw material scarcity. |
Stable; chemical synthesis allows for consistent production and fewer trade restrictions. |
Part 3: Build Quality & Tactical Durability
Can the scope handle the “Sand-Blast” effect in deserts?
Our lenses feature an SD (Super Durable) coating that protects the soft Germanium glass from micro-scratches caused by wind-blown sand.
How long does the battery last in cold weather (-20°C)?
We use high-discharge lithium cells. Expect 5–7 hours of continuous use, currently only one model named LY series ‘s battery can work at -30 degree.
23. Is the housing made of plastic or metal?
We use Aircraft-Grade Magnesium or Aluminum Alloy for the main body to ensure heat dissipation and structural integrity under high recoil.
What happens if the lens fogs up?
Our internal optics are nitrogen-purged and O-ring sealed to prevent internal fogging, even when moving from a warm vehicle to cold air.
How do I calibrate the “dead pixels” on the screen?
Our Menu includes a “Defective Pixel Repair” tool, allowing you to manually switch to this option to do blind pixel correction any dead pixels manually in the field within seconds.
Can I power the device via USB-C while in use?
Yes, all 2025 new models support external power supply via USB-C, allowing for 24-hour continuous surveillance, also can connect with 5V, 2A power-bank
Is the eye relief safe for high-recoil rifles?
Yes, our scopes offer a 40mm to 60mm eye relief, providing a safe distance to prevent “scope eye” during heavy recoil.
How do you test waterproofing?
Devices are submerged in 1 meter of water for one and half an hour minutes (IP67) to ensure they survive accidental drops in rivers or heavy rainstorms.
Are the buttons silent?
Yes, we use rubberized, “silent-tactile” buttons so that the click sound doesn’t alert game in close-range scenarios.
Can I mount this on a Picatinny or Weaver rail?
In our package, like TB650L, we didn’t supply the mount due to sensitive appearance plus strict check, but for NB650L and TR650L , in the package, we equip the mount with the device, the global standard for tactical and hunting rifles.
Part 4: Customization & Distributorship (Questions 31-40)
Can you change the startup splash screen to my company logo?
Yes, for OEM orders, we can hard-code your brand logo into the boot sequence. 100pcs as our minimum order
Can we develop a unique exterior shell color (e.g., FDE or Camo)?
Yes, we offer Cerakote or hydro-dipping for orders exceeding a certain MOQ.
Can you integrate a specific Ballistic Calculator for my local ammunition?
We can update the firmware to include custom ballistic profiles if you provide the G1/G7 coefficients.
Do you provide Whitelabel packaging?
Yes, we can provide neutral packaging with no mention of our company, allowing you to build your own brand equity.
Can you lock certain menu features for government/law enforcement versions?
Yes, firmware can be customized to hide or lock specific features based on your end-user requirements.
Do you offer training for our sales staff?
We provide detailed technical slide decks and can arrange video training sessions for your team.
Can we request a specific frequency for the Laser Rangefinder (LRF)?
Standard is 905nm, but we can discuss 1550nm (eye-safe/stealth) for high-end specialized projects.
What is the MOQ for a “Trial Order”?
We are very flexible for new partners. Usually, 10 units are enough to start a professional evaluation.
Do you provide App customization?
We can offer a “skinned” version of the Wi-Fi streaming app with your branding for large-scale partners.
Can you provide “Exploded View” diagrams for local repairs?
For authorized service centers, we provide full schematics and spare parts lists based on your customized request;
Fo USA market, here is our local after-sale center location:
Receiver name : APJ- JACK
Address：6578 Emmerdale St Eastvale, Ca 91752 ，United States
Mobile ： 6262352422
Note: we are the most professional OEM/ODM thermal optics company, before doing the customized project, we need your detailed technical parameters then have a online meeting to confirm if our team can assure these functions, including the battery capacity, laser rangefinder , ballistic calculator, sensor brand, screen option, apperance design, including after-sale technical support if needed, 2 years warranty for the ODM solution with stable quality.
Part 5: Shipping, Business & Legal (Questions 41-50)
41. How do you package items to prevent transit damage?
We use double-walled corrugated boxes with custom-cut high-density EVA foam inserts.
42. What is your policy on “Dead on Arrival” (DOA) units?
DOA units are replaced immediately at our cost, including shipping.
43. Do you provide a Certificate of Origin (CO)?
Yes, we provide CO, Form E, or any other trade documents required to reduce your import duties.
44. Is there a “Map Pricing” (Minimum Advertised Price) policy?
We work with you to set a MAP to ensure healthy profit margins for all distributors in your region.
45. Can you ship via specialized couriers like UPS Savvy for high-value goods?
We have the most professional night vision & thermal optics logistics partner named UPS agent who can handle all sensitive optics shipment.
46. How do you handle firmware updates for end-users?
Users can update via our App over Wi-Fi, or you can perform bulk updates via USB for your stock.
47. What happens if our country bans thermal scopes?
That is a very forward-thinking question. When we look at global regulatory trends, we suggest a three-tier strategy to protect your investment:
Product Versatility: We prioritize products with Clip-on designs. If clip-on sights are restricted, they remain high-end handheld thermal monoculars for search and rescue or wildlife observation, which are almost never banned.
Firmware Flexibility: Our devices can hide reticle also support remove reticle function; In the event of a regulatory shift, we can provide firmware updates to ensure the device complies with local ‘observation-only’ laws, preventing your inventory from becoming illegal.
Asset Resilience: High-quality thermal optics (especially those using 12μm sensors and high-end Chalcogenide/Germanium lenses) hold their value globally. Should local laws change, these assets retain high demand in international markets where their use remains unrestricted.
We stay closely tuned to international trade compliance to ensure you are buying a tool that is as future-proof as possible.
48. Can we pay via Revolut, Wise, or Cryptocurrency?
We accept Wire Transfers (T/T), Paypal, and most modern fintech payment platforms for your convenience.
49. Do you provide localized user manuals (e.g., German, Arabic, French)?
We can translate and layout manuals in any language provided the MOQ is met.
50. Why choose you over a direct factory sales rep?
While a factory rep sells products, we provide integrated mission success. Here is why our partnership with [InfiRay] factory gives you a superior edge:
The Inside Track: We are the only external technical partner integrated into the factory’s core business and R&D groups. This means we don’t ‘submit tickets’—we talk directly to the engineers to resolve your issues in real-time.
Agile Customization: Unlike factory sales who only offer standard SKUs, we can execute customized projects. Whether it’s a specialized reticle, custom firmware, or OEM branding, we handle the engineering bridge that direct sales reps typically cannot manage.
Elite After-Sales: We act as a Tier-1 technical hub. Instead of waiting weeks for factory inspection, our deep technical involvement allows us to diagnose and resolve most software/calibration issues immediately, ensuring your equipment stays in the field, not in a shipping box.
Buffer & Reliability: We combine the factory’s manufacturing power with a trading company’s flexibility. We handle the logistics, quality QC, and flexible terms that a massive factory operation isn’t structured to provide for individual high-value clients.”
Ready to scale your optics business with InfiRay-grade quality?
Send Us Your Inquiry Now!
Address
Area 2A62, Building B1, Zone B, Lijin City Commercial Center, 424 Jinglong Central Road, Jinglong Community, Longhua Street, Longhua District, Shenzhen City, China.
Email
Info@airseekertec.com
Support@airseekertec.com
Phone
+86 13823653470