Sony E-mount telecentric lens (no lens required)

This is a 3D model of a telecentric lens for Sony E-mount | Telecentric Lens Model (Object-Side) For personal learning and teaching only, not recommended for long-term use. It can directly take close-up pictures with a mosaic texture.

The characteristics of a telecentric lens are that it is distortion-free, has a constant field of view, an unchanging magnification, and no parallax change; even if the object moves closer to or farther from the lens, the image size remains virtually unchanged.

Model principle: Through a lens model without a bottom or top layer, linear infill is used to ensure that the chief rays entering the lens (the chief ray is the centerline connecting the image point and the object point) are nearly parallel or strictly parallel to the optical axis, thus achieving a distortion-free effect.

Effect as shown: (For testing, the infill density needs to be modified to improve the effect)

Printing settings notes:

It is recommended to use a 0.2mm nozzle for printing. Here, the default 0.4mm is used for configuration to facilitate printing for those without a 0.2mm nozzle. The number of top and bottom layers must be 0, the infill pattern is linear, and the infill density needs to be adjusted according to your camera. You can start testing with 35% density.

Do not spray glue on the printing plate, as removing the glue film from the bottom without a shell is prone to surface damage.

Must read:

This model is for learning and testing only. Misoperation may cause dust to enter the CMOS. Please use it carefully. I originally wanted to install a UV thread, but it is not convenient for one-piece printing. If needed, you can modify it yourself. Also, the model does not have a lens locking hole, it will not be very tight to prevent possible jamming.

Inspiration: https://youtu.be/8ln2zjmyITk

This model only simulates the appearance and structure, not the actual optical performance.