Industrial Application of Telecentric Lens

One of the most important advantages of telecentric lens is that the magnification of image is not affected by the change of object distance. Due to the unique technical advantages of telecentric lens, it is especially suitable for precise measurement occasions to meet the needs of high-precision detection in mechanical parts measurement, plastic parts measurement, glass and pharmaceutical parts measurement, electronic components measurement and so on.

Under what circumstances will double telecentric lenses be used:

1. Typical applications such as food containers, beverage bottles, etc. when the thickness of the detected object is large and more than one plane needs to be detected;

2. When the position of the measured object is uncertain, it may be at an angle with the lens.

3. When the measured object jumps up and down in the process of detection, such as when the vibration of the production line causes the working distance to change;

4. When the measured object has aperture or three-dimensional object;

5. When low distortion rate is needed and the brightness of image effect is almost identical;

6. When the defect needed to be detected can only be detected under parallel illumination in the same direction;

7. When it is necessary to exceed the detection accuracy, if the allowable error is 1um.

Application Scene of Telecentric Lens

1. Measurement of mechanical parts

The most common application of telecentric lens is to measure the size of precision mechanical parts. The telecentric lens is mainly used to measure precision mechanical parts, such as springs, screws, nuts and washers.

2. Measurement of Plastic Parts

Another major application of telecentric lenses is to measure rubber seals, O-rings and plastic caps. The characteristic of object is that it is easy to deform when moving and measuring, and the traditional measurement method is difficult. The non-contact optical measurement technology is needed for the detection of these parts.

3. Measurement of Electronic Components

Many other components (such as resistors, transistors and integrated circuits) require small telecentric lenses to check their integrity, size, specifications, position and pin curvature. Electronic drawing boards need to detect the spacing between components. Other electronic products, such as transistors and IC circuits, need telecentric lenses to detect their size and location of connection points, while circuit boards are often used to control the distance between electronic components.

4. Measurement of Glass Products and Medical Parts

Many pharmaceutical glassware, such as small bottles, capsules and tubular bottles, are generally measured by telecentric lens to ensure complete sealing and prevent damage to the utensils. Similar applications exist in beverage manufacturing, such as measuring threads of glass bottlenecks. Other passive medical devices, such as syringes, also need telecentric testing system technology.

Other special uses

Telecentric lenses have other applications, such as:

1. Particle measurement;

2. High-precision color measurement in printing industry;

3. Measurement of lithographic mask;

4. Filter control;

5. Blood analysis and cell measurement.