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Double-view-field panoramic annulus imaging device based on aspherical mirror

An imaging device and a dual-field of view technology, applied in the field of dual-field panoramic detection, can solve problems such as uneven illumination of the image plane, different resolutions, and limited field of view compression capabilities, so as to ensure compact structure and expand the field of view Effect

Inactive Publication Date: 2020-10-09
ZHEJIANG UNIV
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Problems solved by technology

Although the fisheye lens can cover a wide field of view of up to 220°, it also has great defects in imaging, which are reflected in uneven image surface illumination and different resolutions in different markets
Due to the limited ability to compress the field of view provided by refraction imaging, traditional refraction imaging systems encounter great challenges when facing large field of view imaging

Method used

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  • Double-view-field panoramic annulus imaging device based on aspherical mirror
  • Double-view-field panoramic annulus imaging device based on aspherical mirror
  • Double-view-field panoramic annulus imaging device based on aspherical mirror

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Embodiment Construction

[0023] The present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments, and the purpose and effect of the present invention will become clearer. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention.

[0024] like figure 1 As shown, the dual-view field panoramic annulus imaging device based on an aspheric mirror of the present invention includes a front imaging lens 1, a panoramic annulus objective lens 2, an aperture stop 8, a subsequent imaging lens group 9 and image sensor 13.

[0025] The front imaging lens group 1 includes a partially transmissive and partially reflective film and several lenses, which are designed according to specific tasks to determine the size of the forward field of view and the F number of the optical channel of the forward field of view.

[0026] The outer surface of the pan...

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Abstract

The invention discloses a double-view-field panoramic annulus imaging device based on an aspherical mirror. The device comprises a front imaging lens group, a panoramic annulus objective lens, an aperture diaphragm, a subsequent imaging lens group and an image sensor which are sequentially arranged on the same optical axis. According to the panoramic annular band imaging device, a double-view-field imaging structure is adopted, a (0-139 degrees) * 360-degree view field range can be imaged at the same time in a visible light wave band, and the blind area problem existing in a traditional panoramic annular band imaging device is eliminated. Besides, the field angle of the panoramic annulus imaging device is enlarged, the structural compactness of the panoramic annulus imaging device is ensured, and the acquisition of a high-resolution panoramic image is realized.

Description

technical field [0001] The invention relates to the field of dual-view panoramic detection of aspheric mirrors, in particular to a dual-view panoramic ring imaging device based on aspheric mirrors. Background technique [0002] Panoramic imaging technology is a technology for direct detection and imaging of the surrounding 360° environment. It uses a special large field of view reflective optical system to detect and image all the scenes in the large field of view at one time. The method is characterized by compactness, no moving parts, and high-resolution imaging. Currently, most panoramic imaging cameras use a series of catadioptric optics. Although the fisheye lens can cover a wide field of view of up to 220°, it also has great defects in imaging, which are reflected in uneven illumination of the image plane and different resolutions in different markets. Due to the limited ability to compress the field of view provided by refraction imaging, traditional refraction ima...

Claims

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Application Information

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IPC IPC(8): G02B13/06G02B13/18G03B37/00
CPCG02B13/06G02B13/18G03B37/00
Inventor 白剑阿玛尼·阿里雷扎周骧东王佳黄潇
Owner ZHEJIANG UNIV
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