We all know that laser diodes are widely used in daily life. Many people ask how to choose the lens if laser collimation is needed. Let's take a look at it together

spherical lens

Typical use: point light source collimation; Low power laser module; Ordinary laser pointer; Simple industrial positioning lamp

Aspheric lens

Its main features are:

Good imaging quality

The elliptical spot of the laser diode can be corrected.

It is widely used in code scanning, positioning and range finder.

Nowadays, aspherical lenses are standard in sweeping robots, bar code guns and small rangefinders.

Cylindrical lens

As we all know, the light emitted by laser diode is elliptical, which can be divided into fast axis and slow axis.

Cylindrical mirror is specially used for "pressing the fast axis" or "shaping".

Application: laser line module (straight line, reticle); Scan line; Industrial positioning module; Structured light; TIR line light design

The above is the common lens of laser module. If you still have any questions, please feel free to contact us.