In-vivo imaging device and optical system thereof
The present invention provides an in-vivo imaging device comprising at least one imager and an associated optical system, at least the optical system located in an optical dome of the imaging device, the optical dome having a tip, the optical system comprising an optical lens, the optical system having a given effective focal length f, the optical lens being located at a distance D′ from the tip; wherein D′/f≧6.
1. An in-vivo imaging device comprising:
at least one imager and an associated optical system, at least the optical system located in an optical dome of the imaging device, the optical dome having a tip, the optical system comprising at least a first optical lens and a second optical lens, the optical system having a given effective focal length f;
wherein the first optical lens is an objective lens and is located at the distance D′ from the tip; and
wherein D′≧6f.
2. The device according to claim 1 , wherein the at least one imager comprises a pixel array, each pixel having a given pixel size, b, wherein b/f=0.01 radians.
3. The device according to claim 1 , wherein the at least one imager comprises a pixel array, each pixel having a given pixel size, b, wherein b/f is in the range 0.01-0.0015 to 0.01+0.0015 radians.
4. The device according to claim 1 , wherein the optical system further comprises a third optical lens and an aperture stop.
5. The device according to claim 4 , wherein the aperture stop is located between the first and second optical lenses and the third optical lens is located between the second optical lens and the at least one imager.