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Enterprise name：Huaian Dong Sheng Photoelectric Instrument Co., Ltd.

Contact: Wang Li

Telephone：0517-83852182

Mobile phone：15252390568

Mailbox：976723966@qq.com

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Address: No. 9, Haikou Road, Huaian economic and technological development area.

Website：www.zgdsgd.cn

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Basic knowledge of optical lens grinding process

Opticallensgrindingisaveryparticularthing,fromtheprocesstotheutensils,tothefinaleffect,andsoon.Toda
release time:2018-02-28 The number of clicks:618

Characteristics of optical lens grinding machine and various mirror processing methods

Formanufacturersofopticallenses,itisveryimportanttounderstandandfamiliarisethemselveswiththecharacterist
release time:2018-02-28 The number of clicks:1042

Design and technology of optical systems for astronomical telescopes

Therefractingtelescopewouldcertainlywanttoknowthedesignoftherefractingtelescope.Today,thetelescopemanuf
release time:2018-02-27 The number of clicks:924

The history of the optical system of astronomical telescopes

TheCincinnatiObservatory'srefractingtelescope,builtin1848,istheworld'sfirstrefractingtelescope.The
release time:2018-02-26 The number of clicks:1046

Five principles of using the zoom telescope lens

Fiveprinciplesofusingthezoomtelescopelens1.familiarwiththezoomlensofthezoomtelescopelens,zoomandfocu
release time:2018-02-25 The number of clicks:913

China made global astronomical telescope

Theworld'slargesttelescope,theworld'slargestastronomicaltelescope,receivesnearly30footballfields.I
release time:2018-02-24 The number of clicks:612

Guidelines for the adjustment and use of astronomical telescopes

Accordingtotheexperienceoftheastronomicaltelescopemanufacturersformanyyears,theoperationmethodoftheadju
release time:2018-02-24 The number of clicks:945

Why should we choose the telescope with larger caliber as far as possible?

Whyshouldwechoosethetelescopewithlargercaliberasfaraspossible?ShengShengPhotoelectricasanastronomical
release time:2018-02-23 The number of clicks:206

How do astronomical telescopes look at multiple times?

Howdoastronomicaltelescopeslookatmultipletimes?Themultiplemarksofastronomicaltelescopesaredifferentfromt
release time:2018-02-22 The number of clicks:257

How to choose the appropriate caliber for astronomical telescopes?

Howtochoosetheappropriatecaliberforastronomicaltelescopes?Huaianastronomicaltelescopemanufacturertellsyou!
release time:2018-02-20 The number of clicks:457

The low light coefficient of telescope and the factors influencing the effect of weak light

Whatarethefactorsofthelowlightcoefficientofthetelescopeandtheinfluenceoftheweaklight?Ifthecoefficien
release time:2018-02-17 The number of clicks:892

What can astronomical telescopes see?

Theastronomicaltelescopecannotbemeasuredbyhowfaritis.Astronomicaltelescopesaretwoconceptsthatdistingui
release time:2018-02-13 The number of clicks:566

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