Teleskoobi suurenemine (suurenemine), nagu näiteks Pocket Telescope, F70060 Teleskoop, F70060 Astronoomiline Teleskoop, on teleskoobi võime objekti lähemale tuua; näiteks 7x teleskoobi abil 700 meetri kaugusel objekti vaatamine on võrreldav objekti vaatamisega 100 meetri kauguselt palja silmaga, ja selle väärtus on võrdsed objektiivi fookus pikkuse ja okulaarifookus pikkuse suhtega.
Today's mainstream telescope prism systems use two basic designs: the Roof prism or the Porro prism. The advantage of the ridge prism system is that the optical structure is relatively light and compact, which is more suitable for outdoor sports and portable products; The disadvantage is that there is a lot of loss of light, the imaging is relatively dark (but with the development of coating technology, the imaging effect of the telescope with roof structure has been greatly improved), the assembly accuracy is high, it is difficult to manufacture, and the price is more expensive. At the same time, the shape is much more complex than the Paul prism, the processing is difficult, and in addition, it is also difficult to assemble and maintain, so the cost is higher. Paul prism, also known as right-angle prism, is a traditional classic design, the more common design is composed of two identical right-angle prisms, the advantage is that the shape is simple, transmittance and brightness will have a good effect, easy to process and assemble, the disadvantage is that relative to the ridge prism, weight and volume is larger.
