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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 advisor date 20130320

Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130320


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


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





  • 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)


Speaker advisor date 20130327

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


autocollimator

CCD

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


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




- 0.00001578 (rad) = - 0.054 arcmin

0.00003813 (rad) = 0.131 arcmin

  • Calibration the lensarray and CCD

ERROR

俯視

側視



0.00002166 (rad) = 0.07447 arcmin

0.0000226 (rad) = 0.07769 arcmin

  • Calibration the lensarray and CCD

ERROR

俯視

側視


Speaker advisor date 20130403

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



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


Saturation points

Exposure time

Gain


Centroid


!!! 不直接用function preview


Speaker advisor date 20130410

Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130410


將 lensarray 黏上 CCD 之後角度變化11.15 arcmin

arcmin


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

y

dθx

dθy

z

x


y

x’

x

y’

dθy

dθx




X direction

y direction


Speaker advisor date 20130417

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


; pixel size = 0.044 mm


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


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


Speaker advisor date 20130426

Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130426


Polynomial function
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


Pixels

tan(θ)

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

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


Pixels

tan(θ)


Pixels

tan(θ)


Pixels

tan(θ)


Pixels

tan(θ)


Weekly report

Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130508



Shelf
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



Shelf2
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


Shelf3
Shelf

線材出口

1. 紅色虛線為 平台行程範圍(40cmx40cm)

2.M6螺孔


Calibration
Calibration

residue

pixels

pixels

Tan(θ)

Tan(θ)

Where θ from 0 to 10.9 degree


Weekly report1

Weekly Report

Speaker:陳琮夫

Advisor:梁肇文 老師

Date:20130515



Polynomial function legendre such matlab
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 matlab1
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 matlab2
polynomial function : Legendre-such (matlab)


Polynomial function legendre such matlab3
polynomial function : Legendre-such (matlab)


Polynomial function legendre such matlab4
polynomial function : Legendre-such (matlab)


Weekly report2

Weekly Report

Speaker:Stephen Cheng

Advisor:Chao Wen Liang

Date: 20130522



Polynomial function legendre schmidt seminormalized matlab
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 matlab1
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 matlab2
polynomial function : Legendre-Schmidt Seminormalized (matlab)


Polynomial function1
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 matlab3
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 matlab4
polynomial function : Legendre-Schmidt Seminormalized (matlab)

tan(θ)

mm


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