本研究建立400~1000 nm波段之離軸三件式高光譜儀，系統參數包含光源的波段400~1000 nm、中心波長700 nm及光源的發散角(FOV)，光柵0階繞射、1階繞射及光柵條紋間距，透鏡的曲率半徑、厚度與擺放傾角度，參數導入CODE V進行優化，優化後的Code V系統模組，匯至TracePro進行Ray Tracing模擬分析。
本研究分成兩組偵測面，一組底片像素數規格128 × 128、像素大小1 μm × 1 μm，另一組以市售偵測器VNIR U-130 像素數規格128 × 128、像素大小4.8 μm × 4.8 μm兩種規格分析，再利用這兩個規格各分析點光源及狹縫光源，點光源大小為X方向1 nm × Y方向1 nm，二種狹縫光源大小分別為X方向60 μm × Y方向20 μm及X方向100 μm × Y方向20 μm。
為了分析波段的成像品質，因0階光柵沒有分光，0階光柵以中心波長700 nm進行光跡追蹤。1階光柵分別對波長400 nm、550 nm、700 nm、850 nm及1000 nm進行光跡追蹤。本研究利用Code V及TracePro模擬的光跡數據，再利用Matlab分別計算出半高全寬(FWHM)、聚焦縱深(DoF)、調制轉移函數(MTF)、線寬度(Pitch)及解析度數據與其圖形。
本文主要是透過優化光柵間距、透鏡的曲率半徑、透鏡的厚度和透鏡的擺放傾角來獲得最佳的離軸三件式高光譜儀。

Design of a Three-Piece Off-Axis Hyper-Spectrometer used for 400~1000 nm wavebands is introduced in this thesis. The system parameters includ the wavebands, the central wavelength and the divergence anglet of light source, the diffraction orders and the pitch of grating, the curvature radius, thickness and the dip angle of the lens. The system parameters are imported into CODE V, the established CODE V system model will be optimized, and the optimized CODE V system model will be exported to the TracePro for Ray Tracing simulation and analysis.
This study is divided into two detection surfaces, one is the negative, pixel number 128 × 128, pixel size 1 μm × 1 μm and the other is the commercially detector U-130, pixel number 128 × 128, pixel size 4.8 μm × 4.8 μm. These two detection surfaces are used to analyze with the point light source and slit light source. The size of point light source is 1 nm × 1 nm. The size of two slit light sources is 60 μm × 20 μm and 100 μm × 20 μm.
In order to analyze the imaging quality of the wavebands, this study simulates and analyzes the Ray Tracing of the center wavelength 700 nm for the 0-order grating system. Because the 0-order grating system is not split, so this study simulates and analyzes the Ray Tracing of the wavebands 400~1000 nm for the 1-order grating. This paper gets the Ray Tracing data by simulation with Code V and TracePro, and then calculates the FWHM, DoF, MTF, Pitch, resolution data and graphics respectively with Matlab.
This paper is mainly through optimization the pitch of grating, the curvature radius, thickness and the dip angle of the lens to get the optimal Hyper-Spectrometer system.

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