利用旋转对称广角透镜获得全景和直线性图像的方法和装置 Using a wide-angle lens to obtain a rotationally symmetrical linear panoramic image and a method and apparatusdoi:CN101809991 B本发明提供了用于从利用装配有广角透镜的照相机得到的数字化图像中获取看上去自然的全景图像和直线性图像的数学上精确的图像处理...
WIDE-ANGLE LENS AND IMAGING APPARATUS USING THE SAMEWIDE-ANGLE LENS AND IMAGING APPARATUS USING THE SAMEA wide-angle lens comprising: an imaging lens system, including: a front lens group, an aperture, and a rear lens group, arranged in that order from an object side to an image side; whe...
A wide-angle lens includes an object-side lens group <B>200</B>, an image-forming side lens group <B>400</B>, and at least one converging lens <B>300</B> arranged between the object-side lens group <B>200</B> and the image-forming side lens group <B>400</B>. The object-...
PROBLEM TO BE SOLVED: To provide a wide-angle projection lens which has excellent optical performance and long back focus and includes a reduction-side pupil at a sufficiently long distance, and to provide a projection type display device which uses the wide-angle projection lens. SOLUTION: In ...
You can also change the sizes and apparent distances between objects in your scene by just merely changing the focal length of your lens. Wide-angle lenses can make an object seem larger and more distant from its surroundings, whereas telephoto lenses compress the distance between objects, gi...
Wide angle lenses explained, with wide angle lens tests Often any lens with a focal length that falls between 23mm and 35mm can be categorized as a wide-angle lens. To go down any lower than 23mm would still be considered wide-angle, but it pushes the lens into fisheye territory. ...
We propose a wide-angle lens array scheme, which can provide spatial acquisition with ultrawide field of view (FOV) in free-space optical (FSO) links. This... X Ma,L Liu,B Tu,... - 《Journal of Lightwave Technology》 被引量: 1发表: 2010年 Miniaturized Wide Scanning Angle Phased Array...
A wide-angle lens and a projection device using the same are provided. The wide-angle lens from an image side sequentially comprises a first lens group, a ... MK Lin 被引量: 0发表: 2009年 A miniaturised projection device using an LED array and dichroic wedge The present invention relates...
“on” state inside the spectral pattern reflect the light towards the detector, while the ones at the “off” state discard the light on them. Finally, the spatially and spectrally modulated light signal is focused by a lens onto the single-element detector (Hamamatsu H9306) for the ...
<div p-id="p-0001">A super wide angle lens substantially consists of a positive first lens group in which a positive first lens, a negative second lens, a negative third lens, a negative fourth lens,