Claims
- 1. Apparatus in an opto-diagnostic instrument used by a medical examiner for simultaneously focusing first and second images of an original image of an area of interest comprising:
a mirror for reflecting the original image; an imager for receiving the original image and forming a first image thereon; a liquid crystal display (LCD) for receiving the first image from the imager and forming a second image on the LCD for direct observation by the examiner; and a lens system located between the mirror and the area of interest for focusing the first and second images; wherein, when the second image on the LCD is focused using the lens system, the first image on the imager is thereby focused simultaneously.
- 2. Apparatus in an opto-diagnostic instrument used by a medical examiner for automatically focusing a first image of an original image of an area of interest comprising:
a beam splitter for splitting the original image into the first image and simultaneously allowing the examiner to directly observe the patient's eye; a lens system for receiving and focusing the first image; a partial reflector for passing the first image and a second image; an imager for receiving the first image; a mirror for reflecting the second image; a lenslet array for receiving the second image and forming a third image; a linear CCD array for receiving the third image; an amplifier for receiving the output of the linear CCD array and forming an error signal indicative of the error in focus of the first image; and a feedback loop for sending the error signal to the lens system, the error signal causing the lens system to automatically focus the first image.
- 3. Apparatus in an opto-diagnostic instrument used by a medical examiner for automatically focusing a first image of an original image of an area of interest comprising:
a beam splitter for splitting the original image into the first image and simultaneously allowing the examiner to directly observe the patient's eye; a lens system for receiving and focusing the first image; an imager for receiving the first image; an integrated circuit for receiving the output of the imager and deriving a signal indicative of the quality of the first image; an amplifier for receiving the image quality signal of the integrated circuit and forming an error signal indicative of the error in focus of the first image based upon the received image quality signal; and a feedback loop for sending the error signal to the lens system, the error signal causing the lens system to automatically focus the first image.
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This is a divisional of prior filed copending application Ser. No. 09/370,646, filed Aug. 6, 1999, issued as U.S. Pat. No. 6,511,420, on Jan. 28, 2003, which claims the benefit of prior filed copending U.S. provisional application serial No. 60/095,534, filed Aug. 6, 1998.
Provisional Applications (1)
|
Number |
Date |
Country |
|
60095534 |
Aug 1998 |
US |
Divisions (1)
|
Number |
Date |
Country |
Parent |
09370646 |
Aug 1999 |
US |
Child |
10351879 |
Jan 2003 |
US |