Miniaturized Imaging Device Including Multiple GRIN Lenses Optically Coupled to Multiple SSIDs
First Claim
Patent Images
1. A miniature imaging device comprising:
- a catheter having a distal end and a proximal end;
a first imaging system disposed on the distal end of the catheter, the first imaging system having a level of magnification and a field of view and comprising;
(a) an imaging array disposed on an SSID; and
(b) a GRIN lens disposed on a surface of the imaging array;
a second imaging system disposed on the distal end of the catheter and parallel to the first imaging system, the second imaging system having a level of magnification and field of view and comprising;
(a) an imaging array disposed on an SSID; and
(b) a GRIN lens disposed on a surface of the imaging array; and
wherein the level of magnification of the first imaging system is greater than the level of magnification of the second imaging system and the field of view of the first imaging system is less than the field of view of the second imaging system.
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Abstract
A miniaturized imaging device and method of viewing small luminal cavities are described. The imaging device can be used as part of a catheter, and can include at least one solid state imaging device (SSID) including multiple imaging arrays respectively, and multiple graduated refractive index (GRIN) lenses optically coupled to the multiple imaging arrays.
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Citations
20 Claims
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1. A miniature imaging device comprising:
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a catheter having a distal end and a proximal end; a first imaging system disposed on the distal end of the catheter, the first imaging system having a level of magnification and a field of view and comprising; (a) an imaging array disposed on an SSID; and (b) a GRIN lens disposed on a surface of the imaging array; a second imaging system disposed on the distal end of the catheter and parallel to the first imaging system, the second imaging system having a level of magnification and field of view and comprising; (a) an imaging array disposed on an SSID; and (b) a GRIN lens disposed on a surface of the imaging array; and wherein the level of magnification of the first imaging system is greater than the level of magnification of the second imaging system and the field of view of the first imaging system is less than the field of view of the second imaging system. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A miniature imaging device comprising:
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a miniature capsule body; a plurality of imaging arrays disposed on a plurality of SSIDs respectively, the plurality of imaging arrays being positioned about the miniature capsule body to provide a plurality of non-parallel views; and a plurality of GRIN lenses optically disposed in direct contact with a top surface of the plurality of imaging arrays and configured such that a distal end of each of the GRIN lenses is substantially coplanar with an outer surface of the capsule body. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A miniature imaging device comprising:
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a miniature capsule body; an SSID having a plurality of non-parallel sides, said SSID enclosed within the miniature capsule body; a plurality of imaging arrays each disposed on a different one of the non-parallel sides of the SSID; and a plurality of GRIN lens each optically coupled to a different one of the plurality of imaging arrays and oriented substantially within the capsule body. - View Dependent Claims (17, 18, 19, 20)
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Specification