Claims
- 1. An imaging apparatus comprising:
- an image forming optical system for forming an object image;
- an imaging means having a sensitivity to a wavelength range ranging from a visible range to a range other than the visible range and using a solid state imaging device converting an image formed by said image forming optical system into an electric signal;
- a wavelength range dividing means for dividing an illuminating light into a plurality of wavelength ranges within a range in which said imaging means has a sensitivity and one of the wavelength ranges having a sensitivity to a wavelength range of high absorbance of pigment injected into a living body;
- a selecting means for selecting one or more wavelength range divided by said wavelength range dividing means; and
- a signal processing means for processing output signals of said imaging means corresponding to an illuminating light of each wavelength range selected by said selecting means by allotting said output signals to respective different color signals so as to process video signals.
- 2. An imaging apparatus according to claim 1 wherein the pigment injected into a living body is infrared absorption pigment.
- 3. An imaging apparatus according to claim 2 wherein said infrared absorption pigment is ICG.
- 4. An imaging apparatus according to claim 1 wherein said wavelength range dividing means has a narrow range filter having 805 nm. in a center.
- 5. An imaging method comprising the steps of:
- injecting infrared absorption pigment into a living body;
- inserting an endoscope into the living body and making an endoscope face toward an affected part;
- dividing a wavelength range of high absorbance of the infrared absorption pigment between an illuminating means and an imaging means so as to enter the imaging means; and
- converting an output signal of the imaging means into a video signal and displaying the video signal.
- 6. An imaging method according to claim 5, wherein the imaging means senses light in a range extending from a visible range to a range other than the visible range.
- 7. An imaging method according to claim 5, wherein said infrared absorption pigment is ICG pigment.
Priority Claims (4)
Number |
Date |
Country |
Kind |
61-284614 |
Nov 1986 |
JPX |
|
61-284615 |
Nov 1986 |
JPX |
|
62-266060 |
Oct 1987 |
JPX |
|
62-290302 |
Nov 1987 |
JPX |
|
Parent Case Info
This application is a division of Ser. No. 583,277 filed Sep. 7, 1990, now U.S. Pat. No. 5,105,269, which is a division of Ser. No. 449,436 filed Dec. 11, 1989, now U.S. Pat. No. 4,974,076, which in turn is a division of Ser. No. 128,118 filed Nov. 30, 1987, abandoned.
US Referenced Citations (2)
Number |
Name |
Date |
Kind |
4874949 |
Harris et al. |
Oct 1989 |
|
4878113 |
Nakamura |
Oct 1989 |
|
Foreign Referenced Citations (1)
Number |
Date |
Country |
60-210241 |
Oct 1985 |
JPX |
Divisions (3)
|
Number |
Date |
Country |
Parent |
583277 |
Sep 1990 |
|
Parent |
449436 |
Dec 1989 |
|
Parent |
128118 |
Nov 1987 |
|