The application scenarios for telecentric lenses are as follows :

1. Industrial precision measurement: such as electronic components, mechanical parts size detection, which can eliminate the magnification changes due to changes in the object distance, high-precision measurement of the advantages are obvious, can be controlled at a very low level of aberration (high-performance can be achieved without aberration), such as in the chip manufacturing of tiny components of the size and position of the precise measurement.

2. Machine vision system: It is used in automatic production line for object identification, localization and detection. For example, in the automobile parts production line, the shape, size and position of the parts are detected and judged to ensure product quality.

3. Thickness object detection: For objects with large thickness and need to detect multiple planes, like beverage bottles, food boxes, etc., it can ensure the measurement accuracy of different planes.

4. The object position is not fixed scene: when the object to be measured is placed in an uncertain position, may be at an angle with the lens, or in the detection process will jump up and down (such as production line up and down vibration caused by the change in working distance), telecentric lens can ensure the stability of the imaging and measurement accuracy.

5. With aperture or three-dimensional object detection: for such objects, telecentric lens can reduce perspective and distortion effects, accurately present the true shape and size of the object, such as mechanical parts with holes, complex three-dimensional mold detection.

6. High-precision requirements of the scene: when the detection of very high precision requirements, such as tolerance error in the micron level (such as 1μm), telecentric lenses with its high resolution, low distortion and constant magnification and other characteristics to meet the needs of the commonly used in aerospace, precision instrumentation, and other fields of high-precision inspection of parts.

7. Specific direction defect detection: When the defects to be detected can only be detected under parallel illumination in the same direction, telecentric lenses can be used with appropriate illumination methods to effectively detect such defects.

The application scenarios for parallel light imaging lenses are as follows:

1. Precision measurement field: such as optical metrology, semiconductor manufacturing and other extremely high precision requirements of the measurement application, can produce high-resolution, distortion-free image, clearly display the details of the tiny objects, to meet the needs of high-precision measurement. Like in semiconductor chip manufacturing, the circuit pattern on the chip for accurate measurement and detection.

2. Scientific research field: Used for observation and research of microscopic objects, to help scientists understand the structure and characteristics of the object. For example, in biology research, observe the cell structure, microbial morphology, etc.; in material science research, analyze the microstructure and properties of materials.

3. Optical inspection field: such as the detection of optical components (lens radius of curvature, surface flatness, etc. detection), surface quality inspection (scratches on the surface of the object, defects, etc. detection), can provide high-resolution, distortion-free images, to help inspectors find and analyze the problem.