| US 7,616,382 B2 | ||
| Image observation apparatus and image observation system | ||
| Kazutaka Inoguchi, Kawasaki (Japan); Shoichi Yamazaki, Yokohama (Japan); Kenichi Saito, Yokohama (Japan); Motomi Tsuyuki, Kawasaki (Japan); and Masakazu Tohara, Kawasaki (Japan) | ||
| Assigned to Canon Kabushiki Kaisha, Tokyo (Japan) | ||
| Filed on Jun. 17, 2008, as Appl. No. 12/140,359. | ||
| Claims priority of application No. 2007-163070 (JP), filed on Jun. 20, 2007. | ||
| Prior Publication US 2008/0316606 A1, Dec. 25, 2008 | ||
| Int. Cl. G02B 27/14 (2006.01); G09G 5/00 (2006.01) | ||
| U.S. Cl. 359—629 [359/630; 359/633; 359/636; 359/638; 359/639; 359/640; 359/726; 345/9; 348/115; 349/11] | 6 Claims |
| 1. An image observation apparatus comprising:
a first image-forming element and a second image-forming element each of which forms an original image; and
an optical system configured to introduce light fluxes from the first and second image-forming elements to an exit pupil position
of the optical system where an eye of an observer is placed,
wherein the optical system includes an optical surface as a single surface that reflects the light flux from the first image-forming
element and transmits the light flux from the second image-forming element, and
wherein the first image-forming element and the second image-forming element respectively form a first original image and
a second original image that correspond to different viewing fields from the exit pupil position
wherein the optical surface includes a first area in which a reflective film is formed and a second area in which the reflective
film is not formed.
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