Q1: What is the BTL-118 Series used for?
A: It is designed for precision metrology, semiconductor inspection, and industrial machine vision applications requiring ultra-low distortion imaging.
Q2: What is a bi-telecentric lens?
A: A bi-telecentric lens maintains constant magnification from both object and image side, ensuring highly accurate and repeatable measurements.
Q3: What is the magnification range of this lens?
A: The BTL-118 Series supports a wide magnification range from 0.030X to 0.346X, suitable for various inspection tasks.
Q4: What is the distortion level of this lens?
A: The lens achieves less than 0.1% distortion, ensuring high-precision geometric accuracy.
Q5: What sensor size is supported?
A: It supports 1/1.8" sensors with a maximum image circle of Φ9.0mm.
Q6: What mount type does this lens use?
A: It uses a standard C-Mount interface, compatible with most industrial area scan cameras.
Q7: What is the benefit of high telecentricity?
A: High telecentricity (<0.1°) ensures stable magnification and eliminates perspective errors, improving measurement accuracy.
Q8: What industries commonly use this lens?
A: It is widely used in semiconductor manufacturing, electronics inspection, metrology systems, and automation quality control.
Estimated Delivery Time
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Description
Product Description
High-Precision Bi-Telecentric Lens for Industrial Measurement and Machine Vision
The BTL-118 Series bi-telecentric lenses are designed for high-precision machine vision and metrology applications requiring ultra-low distortion and stable measurement accuracy. Supporting a magnification range of 0.030X to 0.346X, these lenses deliver consistent imaging performance across the entire field of view.
With a bi-telecentric optical design, the BTL-118 Series ensures minimal perspective error and highly repeatable measurements, making it ideal for industrial inspection systems where precision is critical. The lens supports 1/1.8" sensors with up to Φ9.0mm image size and is compatible with C-Mount area scan cameras.
Featuring distortion <0.1% and telecentricity <0.1°, the lens provides edge-to-edge image uniformity and exceptional measurement stability even in demanding production environments.
Key Features
✔ Bi-Telecentric Optical Design
Ensures ultra-low distortion and high measurement accuracy.
✔ Ultra-Low Distortion (<0.1%)
Delivers precise geometric imaging for metrology applications.
✔ High Telecentricity (<0.1°)
Maintains consistent magnification across the entire field of view.
✔ Wide Magnification Range (0.030X–0.346X)
Suitable for various precision inspection requirements.
✔ C-Mount Compatibility
Easy integration with industrial area scan cameras.
✔ Designed for 1/1.8" Sensors (Φ9.0mm)
Optimized for compact high-resolution imaging systems.
Ideal Applications
- Precision Metrology
- Semiconductor Inspection
- Electronic Component Measurement
- Automated Optical Inspection (AOI)
- Industrial Quality Control
- Dimensional Measurement Systems
- Machine Vision Automation
- High-Accuracy Calibration Systems
| Model |
WD(mm)
|
FOV(Φmm)
|
Mag.(x)
|
|---|---|---|---|
|
BTL-0.346X-73-118
|
73±1
|
26
|
0.346 |
|
BTL-0.25X-110-118
|
110±2
|
36 | 0.25 |
|
BTL-0.214X-118-118
|
118±3
|
42 | 0.214 |
|
BTL-0.188X-128-118
|
128±3
|
48 | 0.188 |
|
BTL-0.188X-138-118(LM)
|
138±3
|
48 | 0.188 |
|
BTL-0.161X-138-118(LM)
|
138±3
|
56 | 0.161 |
|
BTL-0.141X-158-118(LM)
|
158±3
|
64 | 0.141 |
|
BTL-0.125X-178-118(LM)
|
178±3
|
72 | 0.125 |
|
BTL-0.113XH-228-118(LM)
|
228±4
|
80 | 0.113 |
|
BTL-0.1X-208-118(LM)
|
208±3
|
90 | 0.1 |
|
BTL-0.09X-258-118(LM)
|
258±4
|
100 | 0.09 |
|
BTL-0.082X-263-118(LM)
|
263±4
|
110 | 0.082 |
|
BTL-0.075X-273-118(LM)
|
273±5
|
120 | 0.075 |
|
BTL-0.066X-288-118(LM)
|
288±5
|
136 | 0.066 |
|
BTL-0.06X-300-118(LM)
|
300±5
|
150 | 0.06 |
|
BTL-0.053X-318-118(LM)
|
318±5
|
170 | 0.053 |
|
BTL-0.047X-330-118(LM)
|
330±5
|
190 | 0.047 |
|
BTL-0.042X-372-118(LM)
|
372±5
|
216 | 0.042 |
|
BTL-0.038XH-410-118(LM)
|
410±6
|
240 | 0.038 |
|
BTL-0.035X-338-118(LM)
|
338±5
|
258 | 0.035 |
|
BTL-0.03XH-465-118(LM)
|
465±6
|
300 | 0.03 |
Important Information Before Purchase
■ The back focal length of model with (LM) is adjustable.
■ The weight varies depending on the working distance. If you have any questions, please feel free to reach out to us!
Telecentric Lenses 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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