Misconceptions in Industrial Lens Selection and Avoidance Methods

In industrial automation and machine vision lenses systems, the selection of industrial lenses is a crucial step, directly impacting imaging quality and overall system performance. However, users often fall into some misconceptions during the actual selection process. The following will elaborate on these misconceptions, provide avoidance methods
Misconceptions in Industrial Lens Selection

  1. Ignoring Interface Compatibility:

      • Misconception: Users may only focus on the performance parameters of the lens and overlook the interface matching issue between the lens and the camera.

      • Avoidance Method: Before selection, confirm the camera's interface type (such as C-mount, CS-mount, F-mount, etc.), and choose a lens that matches it. For example, if the camera has a C-mount interface, choose a C-mount lens or consider using an adapter.

  2. Failing to Consider Sensor Size Compatibility:

      • Misconception: Users may not realize that the lens's image format should be larger than or equal to the size of the camera's sensor, otherwise, incomplete imaging or vignetting may occur.

      • Avoidance Method: When selecting, verify whether the lens's image format meets the size requirements of the camera's sensor. Common sensor sizes include 1/2 inch, 2/3 inch, 1 inch, etc.

  3. Neglecting the Relationship Between Focal Length, Field of View, and Working Distance:

      • Misconception: Users may choose a focal length based solely on experience or intuition, without calculating it based on the actual field of view and working distance.

      • Avoidance Method: Before selection, determine the system's field of view and working distance, and then calculate the appropriate focal length using the formula (e.g., focal length f = WD × sensor size (H or V) / FOV (H or V)).

  4. Overlooking Optical Performance and Imaging Quality:

      • Misconception: Users may only pay attention to the lens's resolution and ignore other optical performance parameters (such as distortion, chromatic aberration, spherical aberration, etc.).

      • Avoidance Method: When selecting, comprehensively consider the lens's various optical performance parameters to ensure that the imaging quality meets the system requirements. The Modulation Transfer Function (MTF) curve can be used to evaluate the lens's resolution and contrast performance.

  5. Ignoring the Impact of the Application Environment on the Lens:

      • Misconception: Users may not consider the impact of the actual application environment (such as temperature, humidity, vibration, etc.) on the lens.

      • Avoidance Method: Before selection, understand the lens's protection level, material, and other parameters to ensure that the lens can adapt to the actual application environment. For example, in high-temperature environments, choose a lens made of high-temperature-resistant materials.

Methods for Avoiding Misconceptions

  1. Clarify Application Requirements:

      • Before selection, clearly define the system's application requirements, including the inspection object, working distance, resolution requirements, environmental conditions, etc.

  2. Comprehensively Consider Various Parameters:

      • When selecting, comprehensively consider the lens's various parameters (such as interface, image format, focal length, optical performance, protection level, etc.) to ensure that the lens meets the system requirements.

  3. Conduct Actual Testing and Verification:

      • After selection, conduct tests in the actual environment to check the image's clarity, contrast, distortion, and the lens's stability and other performance characteristics.

Recommendation for Cnomax Brand

When choosing industrial lenses, the Cnomax brand is a worthy consideration. Cnomax specializes in the field of industrial lenses and has many years of technical accumulation and market experience. Its products have the following characteristics:

  1. High Performance:

      • Cnomax industrial lenses have excellent optical performance such as high resolution and low distortion, meeting the requirements for imaging quality and precision in the industrial field.

  2. Rich Product Line:

      • Cnomax offers various types of industrial lenses (such as fixed focal length lenses, zoom lenses, telecentric lenses, etc.) to suit different application needs.

  3. Good Compatibility:

      • Cnomax industrial lenses are compatible with various industrial camera brands, making them easy to integrate into existing machine vision systems.

  4. Excellent Service:

      • Cnomax provides comprehensive technical support and after-sales service, ensuring that users receive timely support and assistance during use.

In summary, when choosing industrial lenses, users should avoid the aforementioned misconceptions and comprehensively consider various parameters and application requirements. At the same time, the Cnomax brand is recommended as a quality choice to ensure the system's imaging quality and overall performance.