This is a labelled toy model, not a telescope. One honest idea runs everything: light always follows the straightest path there is, and mass curves space itself - so near the Sun the straightest path is a bent one. The arithmetic underneath is the real general-relativity deflection formula, so every comparison you make (closer pass, bigger bend; double the distance, half the bend) is exactly right, and you can audit every number.
What is real: starlight grazing the Sun really bends by 1.75 arcseconds - the width of a dime seen from a mile and a quarter away - and eclipses really show the stars shifted outward by exactly that amount. Galaxy clusters really bend light into arcs and rings that Hubble photographs, and astronomers really weigh invisible dark matter by that bending.
Left out on purpose: the drawn bending is enormously exaggerated so it can be SEEN (the real number stays on the screen), the dip-and-sheet is labelled a picture because real space is not a sheet, gravity's slowing of CLOCKS belongs to a later lab, and the mathematics of curvature is saved for grown-up physics. No real journeys or personal details are used; nothing about you leaves this page.
Sources: NASA Space Place ("What Is Gravity?"), NASA Science ("How Gravity Warps Light") and NASA SVS ("How the Sun Warps Starlight"). The links are in the project readme.