Jiaxing Rui Xing Optical Instrument Co., Ltd 简体中文版   English


Refraction series

Modern astronomical telescope can be divided into refractor, reflector and catadioptrics, and the refractor is of non-sheltered aperture and high-contrast. In order to eliminate chromatic aberration, ultra-low dispersion glass is commonly used.



This product is a new generation of independent design of quintuple air-spaced high quality refractor telescope which take the form of dual after triplet. One of the triplet lens is ultra-low dispersion ED glass, which fully optimizes the function of photography, the range of image can reach the 60mm influence circle of medium frame, and the image peripheral dimming control is excellent. For most amateur astronomer it will be the device of choice for astrophotography.



Compare with the first generation products, it has the following features: 1 The optical design has changed, in addition to the original F5.8 focal ratio, F4.3 full-frame reducer lens can be used. 2. The appearance becomes more stylish and streamlined. 3. Change of focuser: use 3.2-inch focuser, plus a 360-degree rear CAA, and the angle adjuster. 4. Add a nice-looking and practical handle.



SHARPSTAR's newly developed ultra-short focal ratio paraboloid Newtonian reflector 20032PNT was launched, which filled a domestic gap in this field. The focal ratio of the whole system reached F3.2 by using a 200mmF3.8 paraboloid, a 90mm plane secondary mirror of short axis, and a 3-inch quartette 0.85 times error correction mirror, has been leading in the domestic market of similar products. Carbon fiber main tube is light, durable and so elegant appearance, which uses Pyrex materials is more stable than conventional reflective materials.



SHARPSTAR's bran-new 76EDPH is the second model in the EDPH series, and the overall appearance is streamlined and cool design. The lens adopts the triplet air-spaced structure, one of which uses ultra-low dispersion ED glass, which ensures that the chromatic distortion can be eliminated regardless of the visual or astro-photograph, and the image formation is more distinct and vivid.The aperture is 76MM, which adopt the focal ratio of F5.5, and the focal length is 418MM. When the dew-shield is retracted, the total length of the lens tube is only 332.9MM. It is short and portable, and it is easy to put it into a travel bag or take it on the plane. It is a good partner for the outdoor expedition. A high-performance optical design and machining processing ensure the great quality of 76EDPH, particularly the 2.5 inch F4.5 full-frame reducer designed for all photography, which makes this telescope model become with short focal ratio high-quality astrophotograph.

—— ABOUT ——

Jiaxing Ruixing Optical Instrument Co., Ltd. is located in Jiaxing City, Zhejiang Province, where the scenery is beautiful and outstanding. The company covers an area of 1,000 square meters and is close to the expressway and 320 National highway. The traffic of the high-speed railway station is very convenient. Founded in 2000, the company is a modern company specializing in the design, manufacture and sales of medium and high-end astronomical telescopes, ground observation telescopes and their peripheral supporting products. OEM has more than 10 years of experience in OEM OEM OEM production, during which to build high-quality, high-level astronomical telescope series products for foreign customers. The three-piece and four-piece high achromatic ED telescope optical tube produced by the company has high quality optical level, high precision mechanical processing and excellent surface treatment, and is well received by customers.



Optimize the position of the optimal imaging area on the photo with the star test
There is no intuitive approach to adjust the optical axis of the reflector, how to move the optimal imaging area across the photo at will, in order to get the best imaging effect? This article suggests a method. Based on the star and move the optimal imaging area to the center of the CCD negative a...


OEM has more than 10 years of experience in OEM OEM OEM production, during which to build high-quality, high-level astronomical telescope series products for foreign customers.

Development and introduction of astronomical telescopes