Take you to understand the gluing process of optical parts!
What is the gluing process of optical parts：
The gluing process of optical parts refers to the process that two or more than two lenses, prisms and plane mirrors are bonded into optical parts by means of optical glue or photoglue according to certain technical requirements. In actual production, there are two technical requirements for gluing; One is to ensure the center error or Angle error, in the case of a lens, to ensure the center error of the chrome through; in the case of a prism or a plane mirror, to ensure the optical parallelism of the prism. The first is to ensure that the glued surface has "zero defects", that is, to ensure that the glued polished surface does not reduce the requirements for surface coagulation disease because of the glued, and does not affect the shape of the non-glued surface because of the glued surface.
There are two methods of gluing optical lenses:
That is, the glue method and the glue method. The adhesive method is to use optically grade transparent adhesive to glue several optical lenses into complex optical components. The photoglue method relies on the attraction of molecules between the surfaces of polished parts to combine a lens into a complex set of optical lenses.
What does the gluing of optical lenses do?
1. Improve image quality
In order to ensure that the photoelectric instrument has good imaging quality and imaging requirements, for example, the gluing of positive and negative lenses can eliminate spherical aberration and chromatic aberration.
2. Reduce light energy loss and increase imaging brightness
For general optical materials, the reflection loss between air and glass interface is 5%-6%, while the reflection loss between optical glue and glass interface is only 0.1% or less. Thus, by gluing optical lenses together, the number of interfaces between the air and the glass can be reduced, thereby reducing light energy loss and increasing the brightness of the image.
3. It can simplify the processing of optical lens
Because the gluing can compensate the small difference of the curvature radius of the gluing surface, the accuracy requirement of the gluing surface can be reduced appropriately.
4. Protect the surface of optical parts
Protective glass is often glued to the surface of the part to protect these surfaces so as not to damage optical dividing surfaces, polarizers, or body parts. For example, the outermost lens protection glass of mobile phone lens is mainly to prevent the lens from being damaged by foreign bodies.
 |