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Masatoshi Hirose Patents |
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Inventor: Hirose; Masatoshi
Address: Toyohashi, JP
No. of patents: 7
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 7375906 |
Wide-angle lens system and image-taking device |
May 20, 2008 |
| A wide-angle lens system has, from the object side thereof: a first lens element having a negative optical power and having a meniscus shape convex to the object side; a second lens element having a biconcave shape; a third lens element having a biconvex shape; and a fourth lens elem |
| 7304808 |
Wide-angle lens system |
December 4, 2007 |
| A wide-angle lens system includes: from the object side, (1) a first lens element formed of glass having both surfaces thereof so formed as to be spherical, having a meniscus shape convex to the object side, and having a negative optical power; (2) a second lens element formed of plastic |
| 6791623 |
Image display system |
September 14, 2004 |
| An image display system includes a memory for storing at least one scanning line of an inputted video signal of the interlace scanning system, and reading means for repeating to read the video signal of one scanning line from the memory at a speed which is n (n is an integer of 2 or more |
| 6606201 |
Zoom lens system |
August 12, 2003 |
| A zoom lens system has, from an enlargement side to a reduction side, a first lens unit having negative optical power and succeeding lens units including at least two lens units having positive optical power, wherein in zooming, all of lens units having negative optical power and include |
| 6545817 |
Zoom lens system |
April 8, 2003 |
| A zoom lens system has, sequentially from enlarging side to reducing side, first lens unit having negative optical power; second lens unit having positive optical power, the second lens unit having a positive lens element positioned nearest the reducing side; diaphragm; third lens unit |
| 6515803 |
Zoom lens system |
February 4, 2003 |
| A zoom lens system having multiple lens units including, sequentially in a direction from an enlargement side thereof toward a reduction side thereof, a first lens unit having a negative optical power, a second lens unit having a positive optical power, a third lens unit having a positiv |
| 5978041 |
Image display system |
November 2, 1999 |
| An image display system includes a display circuit which displays an image composed of a plurality of sub-images, an input circuit which inputs a certain image signal including at least one sub-image embedded in the certain image signal which is provided by at least one of fields and |
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