SP1310 Shortpass Filter(T>90%@750-1300nm,OD5@1350-2070nm)
SP1310 Shortpass Filter(T>90%@750-1300nm,OD5@1350-2070nm)
In Stock.
Ships within 5 working days of order.
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- Wavelength: SP1310 shortpass filter optimized for NIR range (750-1300nm)
- Spectral Features: Sharp cut-off at 1310nm with >90% transmission from 750-1300nm for superior signal clarity
- Optical Density: OD5 blocking from 1350-2070nm ensures deep rejection of unwanted NIR wavelengths
- Filter Dimension Availability: Available in multiple standard sizes – contact us for custom dimensions
Request Raw Data
Request Raw Data
You can request the raw transmission data from us.
Copy the link of the product page and send email to shop@syronoptics.com, you will get reply within 1 working days.
Shipment & Delivery
Shipment & Delivery
- Stocked products ship within 5 business days after order confirmation.
- Custom-made products typically ship within 4–8 weeks.
- Delivery times may be affected by holidays, customs clearance, or other unforeseen events.
- Tracking information becomes available 3–5 days after dispatch when the parcel is handed to the local courier.
- Some deliveries may require customer pickup. Please ensure your contact information is correct and respond promptly to courier communications.
- General international parcel shipping cost: USD 35 (for reference).
Return & Refund
Return & Refund
1. Eligible Products
Stocked (catalog) products with a unit price under USD 500 are eligible for return within 14 days after delivery.
Custom-made or non-stock items are not eligible for no-reason returns.
2. No-Reason Return (Buyer’s Remorse)
If you wish to return an item for reasons other than product defect or seller error:
- Please email shop@syronoptics.com to request a return authorization and return address.
- Buyer is responsible for all return shipping costs.
- Items must be unused, in original condition, and with original packaging.
- Refund will be issued after inspection of the returned item.
3. Seller’s Fault (Defective / Wrong / Damaged Item)
If the return is due to seller error (defective product, wrong item shipped, or damage during shipping):
Please provide clear evidence (photos or videos) showing the issue.
We will evaluate the case and either:
- Provide a replacement, or
Issue a refund (with or without requiring the item to be returned). - Return shipping cost will be covered by the seller in confirmed seller-fault cases.
4. Important Notes
- Returned items are subject to inspection before refund approval.
- Shipping fees, customs duties, and taxes are non-refundable unless the return is due to seller fault.
- Unauthorized returns will not be accepted.
Payment Terms
Payment Terms
Payments can be made online using Credit Card, Apple Pay, Google Pay, WeChat Pay, and Alipay.
If you prefer to pay by bank transfer, please contact shop@syronoptics.com to request an invoice with our banking details.
If you require deferred payment terms, you may request NET 7 or NET 30 at the time of placing your order.
All requests for deferred payment are subject to approval and will be confirmed by SyronOptics via email.
Custom Sizing
Custom Sizing
Custom sizing is available from 3 × 3 mm (or Ø5 mm) up to 60 × 60 mm. For custom cut sizes, please contact shop@syronoptics.com for a quotation.
Pricing is not significantly lower for small-size orders in low quantities due to operational costs.
SKU:
View full details| Specifications | |
|---|---|
Cut-Off Wavelength |
1310nm
|
Optical Density |
OD5
|
Part Number |
SO3030392
|
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SP1310 Shortpass Filter - Silicon Wafer & Solar Cell Inspection
Silicon Wafer & Solar Cell Inspection
Silicon becomes transparent to light at wavelengths longer than ~1100 nm. By using this filter with an InGaAs camera, you create a perfect "transparency window" between 1100 nm and 1300 nm.
- Why use this filter: Standard InGaAs sensors are sensitive up to 1700 nm. If you do not block the longer wavelengths (1350–1700 nm), the image can suffer from chromatic aberration (blurring) or thermal noise. This filter restricts the camera to the high-resolution "sweet spot" of silicon transparency.
- Use Case: Inspecting defects inside silicon ingots, wafers, or MEMS devices, or checking alignment markers on the backside of a wafer.
Recommended Light Sources
- High-Power SWIR LEDs (1150 nm or 1200 nm): These emit precisely within the target "transparency window" (1100–1300 nm) of silicon, providing high contrast and minimal heat while reducing the burden on the filter to block longer wavelengths.
- Tungsten-Halogen Lamps: These provide continuous, broad-spectrum illumination that fully saturates the 1100–1300 nm window, ensuring maximum signal intensity for detecting subtle backside alignment markers or internal cracks that require full-spectrum coverage.
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SP1310 Shortpass Filter - "Water-Blind" Imaging (Moisture Removal)
"Water-Blind" Imaging (Moisture Removal)
Water has a massive absorption peak at 1450 nm. Light in that range is heavily absorbed by moisture, making water appear black.
- Why use this filter: By cutting off at 1310 nm, this filter effectively blocks the 1450 nm water band. This allows you to inspect moist organic materials (like food or biological tissue) without the image being darkened or obscured by water content. It allows for "deep tissue" imaging in the NIR-IIa window (1000–1300 nm) where scattering is low but water absorption hasn't yet taken over.
Recommended Light Sources
- Broadband Halogen or Tungsten Lamps: These provide continuous, high-intensity illumination across the entire 1000–1300 nm window, ensuring maximum photon penetration depth for thick biological samples or food products before the filter blocks the water absorption bands.
- SWIR LEDs (1050 nm or 1200 nm): These emit cool, targeted light within the low-scattering window, preventing heat damage to sensitive moist samples (like tissue or produce) while efficiently concentrating energy where the filter transmits best.
