Eye cup and telescope-side adapter and eyepiece and telescope equipped with the same

摘要

PPROBLEM TO BE SOLVED: To facilitate switching between telescopic photography by attaching a digital camera and telescopic observation, using an eyecup realized by detaching the digital camera. PSOLUTION: In the telescope-side adapter 40 fixed in a telescope in order to connect the digital camera 50 to the telescope 70 and the eyepiece 10 and also connected detachably to a camera-side adapter 60, the eyepiece 10 of the telescope is equipped with an eyecup internal barrel 20 externally-fit and attached to an eyepiece holding barrel so as to freely advance/retreat within a prescribed range in an optical axis direction, and the eyepiece-holding barrel has a large outside diameter part 42 being an intermediate part whose outside diameter is larger than that of the eyecup internal barrel, on a light incident side from the eyecup internal barrel. In the adapter 40, a small inside diameter part 41 on the eye point side and the large inside diameter part 42 ranging there are formed integrally, and the small inside diameter part 41 is fixed in the eyecup internal barrel 20 through a set screw 45, and the adapter 40 is fixed in the eyepiece-holding barrel through a set screw 47. PCOPYRIGHT: (C)2006,JPO&NCIPI