A collimator is a simple device that uses a reflective surface and lenses to replicate a target at infinity.    From Wordnik.com. Reference

Doug's head was soon whirling with numbers and terms such as 'beam collimator' and 'tesla limits'.    From Wordnik.com.  [Moonwar]

The caption I read stated that the shooter had left a collimator in the end of the barrel when he fire.    From Wordnik.com.  [Why Rifle Makers Go Gray] Reference

The form of spectroscope mentioned above, in which the collimator and slit are replaced by a concave lens, will be tried.    From Wordnik.com.  [Scientific American Supplement, No. 601, July 9, 1887] Reference

On the whole, he considered that the best glass to use was pure white flint glass for the collimator, the prisms, and the camera lens.    From Wordnik.com.  [Scientific American Supplement, No. 392, July 7, 1883] Reference

Lar Po had surveying tools, including an ancient laser collimator that wasn't much different from the one I'd used in graduate school.    From Wordnik.com.  [Forever Free]

A boresighter, or collimator, can save you untoldanguish by showing you where your scope is aiming, as opposed to where youthink it's aiming.    From Wordnik.com.  [Three New Big-Game Bullets] Reference

A concave lens has been substituted for the collimator and slit, and besides other advantages, a great saving in length is secured by this change.    From Wordnik.com.  [Scientific American Supplement, No. 601, July 9, 1887] Reference

This sextant is precisely calibrated for celestial navigation by a collimator that checks its accuracy at every 15, providing an accuracy of 0’.1 arc minute, 200 yards.    From Wordnik.com.  [Oldschool Navigationsystem] Reference

Cascade laser patterned with a metamaterial collimator.    From Wordnik.com.  [The Engineer - News] Reference

A close-up lens turns the collimator into a telecentric camera.    From Wordnik.com.  [Manufacturingtalk - manufacturing industry news] Reference

An optional 900mm collimator with 100mm clear aperture is available.    From Wordnik.com.  [Manufacturingtalk - manufacturing industry news] Reference

The CCD camera can be moved from the microscope to the rear of the collimator.    From Wordnik.com.  [Manufacturingtalk - manufacturing industry news] Reference

A red dot collimator type sight would seem to be de-rigeur whatever model is chosen.    From Wordnik.com.  [Army Rumour Service] Reference

All the therapists had to do was watch the computer screen - it showed that the collimator was open.    From Wordnik.com.  [Local News from Tuscaloosa News] Reference

The XP2 body is a bit deeper to accommodate the diffuser and has a slightly larger switch and collimator.    From Wordnik.com.  [Backpacking Light Magazine] Reference

But the Innova collimator and plate sits to the side of the x-ray, which hit the magnets at a very acute angle.    From Wordnik.com.  [Biotech Sector and Stocks Analysis from Seeking Alpha] Reference

The hospital went ahead and radiated the patient, only to discover later that the multileaf collimator had been wide open.    From Wordnik.com.  [Local News from Tuscaloosa News] Reference

A collimator is one of those have-to-have items for me, or any other shooter who likes to save time, trouble, and ammunition.    From Wordnik.com. Reference

The base OS400B system includes a 600mm collimator with 80mm clear aperture, suitable for testing lenses with apertures up to 75mm.    From Wordnik.com.  [Manufacturingtalk - manufacturing industry news] Reference

The CCD camera includes a closeup adapter, which converts the 600mm collimator tube into a telecentric lens for measuring pupil size.    From Wordnik.com.  [Manufacturingtalk - manufacturing industry news] Reference

The thought of wasting precious ammo keeps me up at night, and a collimator will get that first shot close to center almost every time.    From Wordnik.com. Reference

When the computer kept crashing, Ms. Kalach, the medical physicist, did not realize that her instructions for the collimator had not been saved, state records show.    From Wordnik.com.  [Local News from Tuscaloosa News] Reference

GRADIUM® glass products, proprietary collimator assemblies, laser components utilizing proprietary automation technology, higher-level assemblies and packing solutions.    From Wordnik.com.  [Marketwire - Breaking News Releases] Reference

Most collimators use an expanding or caliber-specific arbor -- I've also heard it called a spud -- that fits snuggly into the bore and onto which the collimator is affixed.    From Wordnik.com. Reference

This is called a collimator.    From Wordnik.com.  [Use Tinfoil To Boost Your Remote Control’s Range | Lifehacker Australia] Reference

Breast rings. collimator.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

◦ Movable / Treatment collimator.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference

 Types: ◦ Fixed / Master collimator.    From Wordnik.com.  [Recently Uploaded Slideshows] Reference