User manual MINOX ASPH BROCHURE
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MINOX ASPH BROCHURE (103 ko)
Manual abstract: user guide MINOX ASPHBROCHURE
Detailed instructions for use are in the User's Guide.
[. . . ] I N N O VAT I O N S IN BINOCULAR DESIGN
HOW
Graphic 1
DO
ASPHERICAL LENSES
WORK IN
Graphic 2
BINOCULARS ?
Path of rays through a spherical lens.
Path of rays through a spherical lens.
Path of rays through an aspherical lens even the marginal rays are focused on a single focal point.
Path of rays through an aspherical lens the field of view is on one level.
For decades, aspherical lenses have been used in cameras. [. . . ] Light
rays that touch the lens further away from the optical axis, split before this conventional image point. These rays produce irradiation at the image point, resulting in blurred images. This effect increases with rays at the margin of the field of vision (see graphic 1). To compensate for this image deterioration, several lenses with a different configuration and the opposite optical effect are combined in an optical system (eyepiece or lens). For binoculars, however, this means a larger design, a loss of light transmission and higher weight. This adjustment in surface curvature deflects even light rays striking the lens in the marginal ranges precisely towards the conventional image points. Thanks to the improved combination of rays, a significantly sharper, higher-contrast and, therefore, more detai-
led image is achieved over the entire image field, including distant brush discharge and image points away from the center of the image. Besides producing significantly better images, binoculars equipped with high-quality aspherical lenses in the eyepieces, such as the MINOX 10 x 52 asph. [. . . ] 4 · D - 35578 Wetzlar · Tel. : +49 (0) 6441 / 917-0 · Fax: +49 (0) 6441 / 917-612 · www. minox. com
Minox-Information Best. -Nr. : 99 200 [. . . ]
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