With more than ten years of OEM experience, we have created high-quality and high-level astronomical products for our customers.

With Sharpstar&Askar, Sharpstar Optics has dealers on four continents and a stable customer base all over the world. We have established a stable and efficient business network, aiming to provide customers with considerate and perfect pre-sales and after-sales services.

A series of astrographs launched by our company all have high-quality optical standards, high-precision machining, and excellent surface treatment.

There are obvious differences in imaging principles between short-wave infrared and medium-long wave infrared detectors.Short wave infraredusesreflected ...

4 X 2 X 6 Aluminum Cast Magnetic V-Block Set. Precision ground flat, square and parallel to 0.0005". of power pull. On and off switch on the side.

Herzlichen Willkommen bei IDS. · Schwarze IDS NXT Kamera mit blauem Kabel und farbigem Hintergrund · Mit IDS Kameras lassen sich im Stall, im Gewächshaus und auf ...

Welche Sensorgrößen Gibt Es ? ... Es gibt verschiedene Sensorgrößen, die in der Fotografie verwendet werden. Die gängigsten Sensorgrößen sind Vollformat, APS-C ...

by CA Combs · 2010 · Cited by 183 — Wide-field Fluorescence Microscopy (WFFM) Techniques. In the most basic form (WFFM) involves exciting the fluorophore(s) in the sample of interest using a ...

Founded in 2000, Sharpstar Optics is a modern company specializing in designing, manufacturing, and selling mid-and high-end astronomical telescopes, ground-based telescopes, and accessory products.

Our company adheres to the principle of high technology, high standards, and high quality, the purpose of "people-oriented, moral first", the principle of "integrity management, service first", and the quality policy of "thinking before doing continuous innovation". While continuing to serve global customers, we will strive to expand the domestic market, better serve customers at home and abroad, and provide our best products. Sharpstar is willing to cooperate sincerely with customers at home and abroad to seek common development.

The difference between both lenses comes from their shape, while a spherical lens shape can be defined from a virtual center and a fix radius of curvature, an ...

Explore what is optical aspheric lens, its role in reducing spherical aberration, and the advantages of aspherical optics in enhancing image quality.

Revitalize your beauty routine with the most happy and brightly tinted Color Sensation Collection exclusively for Sephora -in young, fun, and flirty Pink ...

It should be clearly understood that all surfaces have roughness, whether one can physically see it or not. Most of the surfaces that we consider to be smooth, such as the faces of a compact disc, have significant roughness when viewed at the right scale (micro- to nanoscale). Roughness is most commonly measured and described mathematically using the Root Mean Square, or RMS, value, which basically shows how the peaks and valleys are distributed above and below the profile’s centerline.

Lightweight, compact， affordable， quadruplet flat-field Astrograph which can be used for visual observing and astrophotography. The website is out for preview

However, since it is difficult to model two rough surfaces that come into contact, a composite RMS roughness is calculated, which is, essentially, an averaged value of the roughness of the two surfaces. The two contacting rough surfaces can, in this way, be simulated as one rough surface with a composite roughness that comes into contact with a flat surface (whose roughness is zero). Greenwood and Williamson suggested that such as interface can be further simplified by simulating the peaks of the composite rough surface as spheres of an averaged radius Rin contact with a flat surface, as in Hertzian theory.

Browse Magnifiers from Renniks online store, the home of collectors for Stamp storage, philatelic catalogues, lighthouse illustrated album, coin storage, ...

202351 — The depth of field (DOF) is the distance between the closest and farthest objects in a picture acquired with a camera that are in acceptable fine focus.