Bonding Solutions for Mini Camera Systems

Modern vehicles have a large number of miniature cameras: Rear view cameras help when parking and reversing, driver assistance systems support when changing lanes or other driving situations, other cameras help with traffic sign recognition, to name just a few examples. These mini cameras are embedded in the body and are so small that they cannot be bolted into place: Instead, special adhesives adapted to the respective materials are used to bond the plastic housings and fix the lenses. Panacol offers a range of product solutions for this.

 

Active Alignment

Active Alignment involves fitting lenses into the camera body and adjusting the focus. As soon as the position of the lens is exactly right, the adhesive is cured in a fraction of a second using UV light. The demands on the adhesive are high to achieve high-precision bonding: Not only must the adhesives cure very quickly, they must also have low water absorption and low and reproducible shrinkage to avoid tension. 

 

Bonding of Housings 

Camera housings consist of many individual parts that must be glued together. For this purpose, adhesives are used which have a high adhesion to the substrates to be bonded and which also seal the camera against dirt, dust and moisture.

 

Lens Bonding

In complex camera systems several lenses are used. In order to fix these lenses in a space-saving way, they are glued to each other. The adhesive must not only be extremely transparent and non-yellowing, but also scratch-resistant and resistant to moisture.

Bonding of lenses of mini camera systems

Only with adhesives can the small camera systems be securely joined


 

In the following table you will find a selection of adhesives used for the different applications in camera systems. Further products and customized solutions are available on request.

Technical data sheets can be downloaded by clicking on the adhesive name.

Adhesive Viscosity [mPas] Base Curing* Properties
Vitralit® UV 2113 19,000-32,000 hybrid UV
VIS
Acrylate hybrid
superior strength
low thermal expansion
impact resistant
low shrinkage
resistant to soldering stress
excellent flow properties
Vitralit® UV 2114 10,000-15,000 acrylate UV
VIS
Very good adhesion to many substrates;
for bonding and sealing of plastics, glass and metal
Vitralit® UV 2415 1,500-2,500 acrylate UV
VIS
High bond strength
impact resistant
dry surface
resistant to high temperatures and chemicals
Vitralit® UC 1618 500-1,000 epoxy UV
secondary heat cure
high glass transition temperature
high chemical resistance
transparent
low thermal expansion
Vitralit® UC 1619 3,000-5,000 epoxy UV
secondary heat cure
low ion content
non-yellowing
low thermal expansion
Vitralit® 1605 200-400 epoxy UV
secondary heat cure
low shrinkage
low heat expansion
very high tg
excellent chemical resistance
certified to ISO 10993-5 standards
Vitralit® UC 6772 200-400 epoxy UV Scratch-resistant, brilliant surface
Vitralit® UD 5134 15,000-25,000 acrylate UV
VIS
secondary heat cure
Acrylate-Hybrid
low thermal expansion
low shrinkage
impact resistant
dry surface
grey color
Vitralit® 1517 90,000-120,000 epoxy UV
secondary heat cure
low shrinkage
very high Tg
low heat expansion
Vitralit® UC 6684 1,500-2,500 epoxy UV Transparent
brilliant and dry surface
scratch resistant
Vitralit® UC 6686 55,000-80,000 epoxy UV suitable for dome coatings and "drop-effects" on glass or plastic, scratch-resistant, non-yellowing

*UV = 320 - 390 nm          VIS = 405 nm