Q1: What is the TLVS-H1.1 series used for?
A: The TLVS-H1.1 is a Visible–SWIR telecentric lens series designed for semiconductor inspection, IC imaging, silicon transmission analysis, and multi-spectral machine vision applications.
Q2: What is focus shift correction in this lens?
A: Focus shift correction allows the lens to maintain consistent focus across 400–1200nm wavelengths, eliminating the need to refocus when switching between visible and SWIR imaging.
Q3: Can this lens capture internal structures through silicon?
A: Yes. At around 1100nm transmission wavelength, the lens can image internal IC circuits and structures through silicon wafers.
Q4: What magnification options are available?
A: The series supports 0.7X, 1.0X, 2.0X, and 4.0X magnifications, suitable for different inspection and measurement requirements.
Q5: What is the advantage of a telecentric design?
A: Telecentric optics ensure low distortion, stable magnification, and high measurement accuracy, which is essential for precision inspection.
Q6: Does the lens support both coaxial and non-coaxial setups?
A: Yes, the TLVS-H1.1 series is available in coaxial and non-coaxial versions, depending on the application environment.
Q7: What industries commonly use this lens?
A: It is widely used in semiconductor manufacturing, IC inspection, electronics production, precision metrology, and advanced machine vision systems.
Q8: What is the wavelength range of this lens?
A: The lens operates across a wide 400–1200nm spectral range, covering both visible and SWIR imaging.
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Description
Product Description
Visible–SWIR Telecentric Lens with Focus Shift Correction for Precision Imaging
The TLVS-H1.1 Series is a high-performance Visible–SWIR telecentric lens designed for advanced machine vision applications requiring imaging across a wide wavelength range from 400 to 1200nm. Its unique focus shift correction technology ensures consistent image focus from visible light to shortwave infrared (SWIR), eliminating the need for refocusing during multi-spectrum inspection.
This series enables users to capture both visible and transmitted SWIR images with high stability, allowing the detection of internal structures and defects that are invisible under standard visible-light imaging. It is particularly effective for silicon wafer inspection and IC internal circuit imaging at ~1100nm transmission wavelength.
Available in 0.7X, 1.0X, 2.0X, and 4.0X magnifications, the TLVS-H1.1 series supports both coaxial and non-coaxial configurations, providing flexible integration for different industrial inspection systems.
Key Features
✔ Visible–SWIR Wideband Imaging (400–1200nm)
Supports seamless imaging from visible light to SWIR spectrum.
✔ Focus Shift Correction Technology
Maintains sharp focus across multiple wavelengths without adjustment.
✔ Telecentric Optical Design
Ensures distortion-free imaging and high measurement accuracy.
✔ Multi-Magnification Options (0.7X–4.0X)
Flexible configurations for various machine vision applications.
✔ IC Silicon Transmission Imaging (~1100nm)
Enables internal circuit inspection through silicon wafers.
✔ Coaxial / Non-Coaxial Versions Available
Suitable for reflective and transmissive inspection systems.
Ideal Applications
- Semiconductor Wafer Inspection
- IC Internal Circuit Imaging
- Silicon Transmission Inspection
- Electronics Manufacturing
- Defect Detection Across Spectra
- Precision Metrology
- Advanced Machine Vision Systems
- Multi-Spectral Industrial Imaging
Specifications
400-1200nm VIS-SWIR C-Mount Telecentric Lens
| Model | Mag. | WD | Image Circle | Coaxial |
|---|---|---|---|---|
| TLVS-0.7XD-H1.1 | 0.7X | 110 mm | Φ20.5 mm | Yes |
| TLVS-0.7X-H1.1 | 0.7X | 110 mm | Φ20.5 mm | No |
| TLVS-1.0XD-H1.1 | 1.0X | 110 mm | Φ24 mm | Yes |
| TLVS-1.0X-H1.1 | 1.0X | 110 mm | Φ24 mm | No |
| TLVS-2.0XD-H1.1 | 2.0X | 110 mm | Φ24 mm | Yes |
| TLVS-2.0X-H1.1 | 2.0X | 110 mm | Φ24 mm | No |
| TLVS-4.0XD-H1.1 | 4.0X | 110 mm | Φ20.5 mm | Yes |
| TLVS-4.0X-H1.1 | 4.0X | 110 mm | Φ20.5 mm | No |
SWIR Lens Download
Return and Exchange Policy
Please review our return and exchange policy carefully before placing your order. We encourage all customers to confirm product specifications and application requirements before purchase.
1. Return and Exchange Eligibility
Contrastech accepts return or exchange requests only for product defects or quality issues, subject to review and confirmation.
Returns or exchanges for reasons unrelated to product defects or quality issues are generally not accepted, subject to applicable law.
2. Non-Eligible Return and Exchange Requests
Before placing an order, customers are responsible for confirming that the selected product meets their technical requirements and is suitable for their intended application. Customers are also responsible for evaluating product compatibility with their systems and use cases.
Requests based on the following reasons are generally not eligible:
- Misunderstanding product specifications or selecting the wrong product.
- Product incompatibility with the customer's intended application.
- Personal dissatisfaction unrelated to a confirmed product defect or quality issue.
These limitations are subject to any mandatory rights or remedies available under applicable law.
3. Product Quality and Claim Period
Our products undergo quality control and quality assurance inspections before shipment. However, if a product you receive is damaged, defective, or materially inconsistent with its published description, please contact us within 3 business days of receipt to report the issue.
Important: Please provide your order number, a description of the issue, and relevant photos or videos where available. This information helps our team assess your claim efficiently.
Our team will review the information provided and advise you on the next steps. Please do not return any product before receiving return instructions from our team.
The stated reporting period does not limit any non-waivable rights you may have under applicable law.
4. Refund Processing and Transaction Fees
For return or refund requests that meet our eligibility requirements, we will process the refund within 1 business day after approval.
Please note that a 6.4% transaction processing fee charged by the payment platform is non-refundable and may be deducted from the refund amount, where permitted by applicable law and the relevant payment provider's terms.
The actual time required for the refunded amount to appear in your account may vary depending on your payment provider or bank.
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If you have questions about our return and exchange policy or need to report a product quality issue, please contact our team.
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