eighteenth-century astronomical equipment reflecting telescope
The main component of a reflecting telescope is a concave mirror (primary mirror), which reflects light to the focal point. Unlike refracting telescopes, reflecting telescopes use mirrors instead of lenses to focus light, which avoids chromatic aberration problems. Common reflecting telescope designs include the Newtonian and Cassegrain telescopes. Reflecting telescope design was further developed in the 18th century, particularly with large aperture and high power reflecting telescopes. The use of a parabolic mirror allows the light rays parallel to the optical axis of the objective lens to be accurately focused on the focal point, thereby greatly improving the image quality.
Old style copper astronomical telescope
WW1 Antique Telescope
3D model of astronomical telescope
Indoor and outdoor tripod short tube telescope
Retro vintage single tube telescopic telescope
19th century Navy binoculars
ZenithTempest binoculars black
American military AN-PVS-31-BNVD night vision binoculars
Indoor and outdoor red walnut solid wood triangular support frame metal parts assembly astronomical telescope
binoculars
Popular Models
Random Model
Purple Radish 3D Model
352 View
Yarrow
349 View
Argentina's Avacagua Mountain
165 View
Thick shelled cinnamon fruit
306 View
Pringles potato chip rifle
324 View
Italian Bread
116 View
Flat iron at the Stranraer Museum
154 View
Sagu Chicken Dinner Package
180 View