文档介绍：The Bonding of Optical Elements
Techniques and Troubleshooting
by
Summers Optical
A Division of EMS Acquisition, Inc.
PO Box 380 - 1560 Industry Road
Hatfield, PA 19440
Tel #: 215-412-8380 - Fax#: 215-412-8450
E-Mail: K@
This writing is an attempt to prevent many of mon errors and failures that occur when an optician or technician begins bonding optics with synthetic adhesives. In many places the experienced optical technician will be strained to endure what to him seem mon sense. In these instances patience is requested. It is experience that has prompted this writing. Many duplications of errors have occurred over the years because what was taken for granted by some was totally new and unexpected by others. There is also the chance that there are a few new aspects to be learned by the experienced. Designers may after reading, be able to design out some of the problems mentioned before they reach the cementing department.    
Information Requirements
Prior to 1946 optical elements were bonded with purified, filtered Canada balsam. Balsam was easy to apply and in most cases an patible bonding medium except that it had little thermal or solvent resistance. The war and advances in aviation underlined these limitations and so a synthetic resin adhesive was developed. This adhesive required very high temperatures and long curing times, so research was conducted by DRs. Souren Sadjian and Marco Petronio to develop a low or room temperature, catalyst cured adhesive. The research was done under the auspices of the . Government at the Frankford Arsenal in Philadelphia. The result of that research was a ponent polyester resin based cement that many panies use today.
Since then, private adhesive manufacturers have developed a myriad of polyester, epoxy and urethane based single and ponent adhesives for bonding optical elements. All of these adhesives are plex than balsam and demand a thorough knowledge of what the finished optics will experience in order to ch