A collimating lens system is generally comprised of a tube and one or more lenses. By selecting optimal lens and focal distance properties, it is possible to collimate light with high accuracy. The lens can be attached to the measurement device directly or a fiber connection can be used to e...
What does DOF mean in laser collimation?Laser Collimation:The purpose of a laser is to put as many photons as possible into a small space with minimal diffraction. This is accomplished by collimating the photons being emitted, ensuring that they are, as much as possible, all going in the sa...
A refractor telescope has a glass objective lens as the main focusing unit to collect light at the front of a long tube. This lens is usually made up of two or more lens elements where light is bent (or refracted), as it passes through the tube, to produce a clear image and reduce ...
The glass plate at the top is not just a piece of ordinary glass, it has to meet the same specs as a lens. if you're going to that kind of effort, its dumb to not make use of it to manage aberrations - which is exactly how the Schmidt and mak-newtonian concepts arose. If the ...
in front of the lens. You can also purchase Barlowed lasers from commercial sources such as Howie Glatter and Kendrick Astro Equipment. Unlike a plain laser, the Barlowed version works very well and avoids the pitfalls of the former. This is my favourite method for collimating in the dark....
radius y2 = θ1f and divergence angle θ2 = y1/f. Note that, no matter what lens is used, the beam radius and beam divergence have a reciprocal relation. Thus, if the focal point were to be infinity, that would result in the ray angle being zero, thereby collimating the beam of ...
measurements of lenses that I am assembling, testing, collimating, etc on the interferometer, check them out. It takes several hours to do this to every lens, almost the same amount of time it took to do the 130's. Even though it's little, it still takes a lot of work to make ...
The Meade LS6 is about as bad as it gets for some branches of astrophotography, most notably deep sky, which is what you'd do with a DSLR. It is on an alt az mount so it tracks the sky but has the object rotate in the field as it does so. You need an equatorial mount for de...
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Yea I’ve only had to adjust the secondary once and it’s held it’s collimation ever since. I don’t mind collimating the primary each time. Only once in awhile when it’s way off to begin with does it take a lot longer.