verb (used with object), col·li·mat·ed, col·li·mat·ing. to bring into line; make parallel. to adjust accurately the line of sight of (a telescope).

A star diagonal, erecting lens or diagonal mirror is an angled mirror or prism used in telescopes that allows viewing from a direction that is perpendicular to the usual eyepiece axis. It allows more convenient and comfortable viewing when the telescope is pointed at, or near the zenith (i.e. directly overhead).

A diagonal is a straight line between two opposite corners of a rectangle. The image diagonal is a dimension of the image size. It is calculated using Pythagoras’ theorem as d = √a² + b², if the length of the image is a and the height is b. Please enter two of the three values and select the units you want.

Collimator, device for changing the diverging light or other radiation from a point source into a parallel beam. This collimation of the light is required to make specialized measurements in spectroscopy and in geometric and physical optics.

In linear accelerators (linac), the primary collimator may be constructed of depleted uranium as this material is approximately 1.6 times more dense than lead. The secondary motorised collimators which greater define the beam shape are constructed of lead or tungsten.

Collimation is the alignment of the optics in your telescope. If the optics are not properly aligned, they cannot bring starlight to an accurate focus. Refractor telescopes are permanently collimated at the factory and therefore should never require collimation.

Laser Collimator in a Telescope First, you use the laser collimator to determine whether or not the secondary mirror is pointing directly at the center of the primary mirror. The laser beam will reflect off the secondary mirror and reach the primary mirror. A primary mirror usually has a small marking tape on it.

Best Laser Collimator Reviews

• SVBONY Red Laser Collimator.
• Astromania 1.25” Laser Collimator.
• Orion 5691 LaserMate Deluxe II Telescope Laser Collimator.
• Meade Instruments 608001 Laser Collimator.
• Gosky 1.25” Metal Laser.

A laser is created when the electrons in atoms in special glasses, crystals, or gases absorb energy from an electrical current or another laser and become “excited.” The excited electrons move from a lower-energy orbit to a higher-energy orbit around the atom’s nucleus. Second, laser light is directional.

Properties of laser light are: monochromacity (the same color), coherence (all of the light waves are in phase both spatially and temporally), collimation (all rays are parallel to each other and do not diverge significantly even over long distances).