Newtonian+reflector

The Newtonian reflector is a reflecting telescope invented by Sir Isaac Newton in the 18th century.Sir Issac Newton In 1704, Sir Issac Newton announced a new concept in telescope design whereby instead of glass lenses, a curved mirror was used to gather in light and reflect it back to a point of focus. This reflecting mirror acts like a light-collecting bucket: the bigger the bucket, the more light it can collect. The reflector telescope that Newton designed opened the door to magnifying objects thousands of times – far beyond what could ever be obtained with a lens.