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Speaker: 陳琮夫 Advisor: 梁肇文 老師 Date:20130320 PowerPoint PPT Presentation


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Weekly Report. Speaker: 陳琮夫 Advisor: 梁肇文 老師 Date:20130320. Lensarray Calibration. Image of autocollimator PS: This pic is error !!! We align the reflection image to the ghost image. Lensarray Calibration. The convex surface of lensarray the beam normal insert to the lensarray.

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Speaker: 陳琮夫 Advisor: 梁肇文 老師 Date:20130320

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Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130320


  • Lensarray Calibration

Image of autocollimatorPS: This pic is error !!! We align the reflection image to the ghost image


  • Lensarray Calibration

The convex surface of lensarray the beam normal insert to the lensarray


  • Lensarray Calibration


  • Lensarray Calibration


  • Lensarray Calibration


  • Advisor

  • 確認中間偏暗十字是否為 reference還是 ghost image

  • 確認正射下 nomal reflection error (未回答道問題)


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130327


  • Outline

  • Calibration the lensarray and CCD protecting glassNext : use the least square fitting to calibrate


  • Calibration the lensarray and CCD

autocollimator

CCD

The beam from autocollimator normal reflect to the protect glass above the ccd sensor


  • Calibration the lensarray and CCD

autocollimator

CCD

lensarray

The beam from autocollimator normal reflect to the lensarray in front of the ccd sensor .

PS: Here we adjust the cross image to match the center of ccd


autocollimator

CCD

  • Calibration the lensarray and CCD

lensarray

snap

Without the pinhole

With the 50um pinhole


light

  • Calibration the lensarray and CCD

sensor

lensarray

glass

PS:

First, align the autocollimator and ccd glass.

Secondly, place the lensarray.

Lensarray is not parallel to the glass


  • Calibration the lensarray and CCD


  • Calibration the lensarray and CCD


- 0.00001578 (rad) = - 0.054 arcmin

0.00003813 (rad) = 0.131 arcmin

  • Calibration the lensarray and CCD

ERROR

俯視

側視


  • Calibration the lensarray and CCD


0.00002166 (rad) = 0.07447 arcmin

0.0000226 (rad) = 0.07769 arcmin

  • Calibration the lensarray and CCD

ERROR

俯視

側視


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130403


5.376 arcmin

arcmin

  • Calibration the lensarray and CCD

俯視

側視


  • Calibration the lensarray and CCD

?

lensarray

CCD


Align CCD&Lensarray

  • Flow chart

Catch the picture

Get the x,y coordinate

Calibration: Misalignment effect

Stick !!!!

Place the testing lens

Catch the picture

Asign the ShackHartmann pattern

Centroid

Calibration

Wavefront Reconstruction


  • histogram

Saturation points

Exposure time

Gain


  • histogram

Centroid


  • histogram

!!! 不直接用function preview


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130410


  • Calibration the lensarray and CCD

將 lensarray 黏上 CCD 之後角度變化11.15 arcmin

arcmin


  • Calibration the lensarray and CCD

=( sin(dx)cos(dy), sin(dy), cos(dx)cos(dy) )

y

dθx

dθy

z

x


  • Calibration the lensarray and CCD

y

x’

x

y’

dθy

dθx


  • Calibration the lensarray and CCD

  • Find the x and y

  • Shift the centroid to the CCD center


  • Calibration the lensarray and CCD

  • Find the x and y

  • Shift the centroid to the CCD center

  • Calibration the tilt angle -> too small !!!!


  • Calibration the lensarray and CCD

X direction

y direction


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130417


Align CCD&Lensarray

  • Flow chart

Catch the picture

Get the x,y coordinate

Calibration: Misalignment effect

Calibration: Defocus effect

Place the testing lens

Stick !!!!

Catch the picture

Asign the ShackHartmann pattern

Centroid

Calibration: Oddaberration

Wavefront Reconstruction


  • Calibration the lensarray and CCD

  • Tilt angle of the LensArray

  • The maximum pixel shift

  • Wavefront slope error

; pixel size = 0.044 mm


  • Calibration the lensarray and CCD

Rotate it more than 1.5 degree , using central area to analysis


  • Calibration the lensarray and CCD

取所有點的平均 之後做 least-square fitting where ,


  • Calibration the lensarray and CCD

  • Method 1.

    W.D. = spot shift/tan⁡(∆𝜃);

    Ave_W.D.=4269.560 μm

  • Method 2.

    WD(x) = fitted_f(x) / x

Working distance


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130426


polynomial function

Hc(on focus)

Hc(defocus)

θ

θ

Δf

EFL

NOtE :

polynomial function : where , φ=(tanθ)

Hc(On focus) = (EFL+ ++

Hc (defocus) = ((EFL-Δf)+ + +

Paraxial height


  • Defocus effect on CodeV simulation

Pixels

tan(θ)

(1174-982)*4.4=846.106 um = 0.846mm

(1174-719)*4.4=1999.827 um = 2.000 mm


  • Defocus effect on experiment

Pixels

tan(θ)


  • Defocus effect on CodeVsimulation and experiment

Pixels

tan(θ)


  • Defocus effect on CodeVsimulation and experiment

Pixels

tan(θ)


  • Defocus effect on CodeVsimulation and experiment

Pixels

tan(θ)


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130508


Schedule


Shelf

掀開式上蓋

工作區:70cm

鏤空

架子:

鋁製

b. 隔層板(1.2.3):隔層板1.2 : 鐵板

隔層板3: 壓克力板

c. 外殼:

霧面壓克力板

or 電腦機殼鐵板

1

鏤空

鏡座:25cm

2

置物區:20cm

3

支撐:3cm


Shelf


Shelf

線材出口

1. 紅色虛線為 平台行程範圍

2.M6螺孔

1. 紅色虛線為 平台行程範圍(40cmx40cm)

2.M6螺孔


Shelf

線材出口

1. 紅色虛線為 平台行程範圍(40cmx40cm)

2.M6螺孔


Calibration

residue

pixels

pixels

Tan(θ)

Tan(θ)

Where θ from 0 to 10.9 degree


Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130515


Schedule


polynomial function : Legendre-such (matlab)

Pixels

Pixels

tan(θ) , where θ from 0 to 10.9 deg

tan(θ) , where θ from 0 to 10.9 deg


polynomial function : Legendre-such (matlab)

Pixels

Pixels

tan(θ) , where θ from 0 to 10.9 deg

tan(θ) , where θ from 0 to 10.9 deg


polynomial function : Legendre-such (matlab)


polynomial function : Legendre-such (matlab)


polynomial function : Legendre-such (matlab)


Weekly Report

Speaker:Stephen Cheng

Advisor:Chao Wen Liang

Date: 20130522


Schedule


polynomial function : Legendre-Schmidt Seminormalized (matlab)

tan(θ) , where θ from 0 to 10.9 deg

tan(θ) , where θ from 0 to 10.9 deg

Pixels

Pixels

tan(θ) , where θ from 0 to 10.9 deg

tan(θ) , where θ from 0 to 10.9 deg

Pixels

Pixels


polynomial function : Legendre-Schmidt Seminormalized (matlab)

tan(θ) , where θ from 0 to 10.9 deg

tan(θ) , where θ from 0 to 10.9 deg

Pixels

Pixels

Pixels

Pixels

tan(θ) , where θ from 0 to 10.9 deg

tan(θ) , where θ from 0 to 10.9 deg


polynomial function : Legendre-Schmidt Seminormalized (matlab)


polynomial function

Hc(on focus)

Hc(defocus)

θ

θ

Δf

EFL

NOtE :

polynomial function : where , φ=(tanθ)

Hc(On focus) = EFL + ++

Hc (defocus) = ((EFL-Δf)+ + +

  • Paraxial height


polynomial function : Legendre-Schmidt Seminormalized (matlab)

pixels

NA (tanθ)

We obtain the defocus of between the lensarray and CCD.

The codeV simulation will fit the experiment result.


polynomial function : Legendre-Schmidt Seminormalized (matlab)

tan(θ)

mm


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