RcServos

Radio control servos.

http://www.google.co.za/search?hl=en&as_q=Parker+Daedal&as_epq=MX80L+&as_oq=&as_eq=&num=10&lr=&as_filetype=&ft=i&as_sitesearch=&as_qdr=all&as_rights=&as_occt=any&cr=&as_nlo=&as_nhi=&safe=images

Parker Daedal

See OpticPatents which references this motor http://www.daedalpositioning.com/products/Linear_Servo_Motors__5472__30_32_80_567.html

Edmund Optics - http://www.edmundoptics.com/onlinecatalog/browse.cfm?categoryid=10 - DWDM dielectric bandpass filter, is also used in the optical path to allow only predetermined optical wavelengths to pass through.