Astigmatism-eliminating three-reflector optical system
An optical system and three-mirror technology, applied in the field of optical systems, can solve problems such as difficult installation and calibration, high processing difficulty, and high manufacturing cost, and achieve the effects of reducing difficulty and cost, reducing difficulty, and reducing difficulty
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Embodiment 1
[0017] according to figure 1 As shown in the optical system structure, we have designed the optical system structure of a spaceborne telescope. The main technical indicators of the spaceborne telescope are:
[0018] Satellite orbit height: 686Km
[0019] Ground resolution: 4m
[0020] Spectral Range: Panchromatic
[0021] swath width: 24Km
[0022] Detector: 6000 yuan CCD linear array (unit size: 7μm×7μm)
[0023] The technical indicators of the optical system formulated by the overall technical indicators of the telescope are:
[0024] Focal length: 1200mm
[0025] Caliber: φ300mm
[0026] Wavelength: 0.5-0.8μm
[0027] Field of view: 2° (line field of view)
[0028] The design results of the specific optical structure parameters are attached, and the transfer function curve of the optical system is shown in figure 2 .
Embodiment 2
[0030] according to figure 1 As shown in the optical system structure, we have designed the optical system structure of a spaceborne telescope. The main technical indicators of the spaceborne telescope are:
[0031] Satellite orbit height: 600Km
[0032] Ground resolution: 4.5m
[0033] Spectral Range: Panchromatic
[0034] swath width: 27Km
[0035] Detector: 6000 yuan CCD linear array (unit size: 10μm×10μm) The technical indicators of the optical system formulated by the overall technical indicators of the telescope are:
[0036] Focal length: 1333.33mm
[0037] Caliber: φ300mm
[0038] Wavelength: 0.5-0.8μm
[0039] Field of view: 2.83° (line field of view)
[0040] The design results of the specific optical structure parameters are attached, and the optical transfer function curve of the optical system is shown in image 3 . Design results of optical structure parameters:
[0041] Example 1 Example 2 Main...
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