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`Introductory User’s Guide
`
`CODE V 9.7
`
`October 2006
`
`
`
`OPTICAL RESEARCH ASSOCIATES HP,
`
` Ex. 1008
`
`HP,
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`
`
`
`
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`
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`Chapter 2
`
`Just Do It: Design a Digital Camera Lens
`
`=
`
`(Click the Quick 2D Labeled icon on the toolbar:
`
`Qy wz
`
`I's the middle ome that shows a lens and a pencil alongwith the letter() (for quick)
`and the letter L (for labeled—float the mowse over if to see the tool-tiphelp to see
`the mescage “Qrick 2D - Labeled’). Keep the resulting window open as you work
`(resize and move the window as desired). When you change semething click the
`Execute button in the upper left comer ofthe window to redraw the lens picture.
`
` al =
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`hems Heeae cA
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`at
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`Before analyaine this lens, you will more than likely need to scale it to the req™uired
`effective focal length (EFL).
`
`Surface Operations: Scale the Lens
`Although vou set the fiumber and field angles to the desired values mm the New
`Lens Witard, you need to be sure the lems has the specified effective focal length
`(EFL) of 6 mm. One way to detenmine this is to display a windew offirst onder
`Properties
`
`Ll. Choose the Display > List Lens Data > First Order Data meng, and re-sire
`Te-position the resulting window for convenient viewing
`Note the value labeled EFL in this window(0.9523 mm), which & not optimal
`for this application. Scaling the lens data is the wiaal way to fix this.
`
`CODE V Introductory Leer's Guide
`
`2
`
` Ex. 1008
`
`HP,
`
`
`
`
`
`
`
`
` Chapter 2 Just Do [t: Design a Digital Camera Lens
`
`Tip: You can place the EFL and various other lens properties an the status bar
`at the bottom ofthe main CODE V warkspace. This allows continuous
`meenitoring of these items. Choose the Tools>Customize mena and click on
`the Status Bar tab in the Customize dialog box to access this feature.
`
`F. We ee iteesy
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`lel Es
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`INFINITE CONJUGATES
`EFL
`0.9526
`BFL
`o.7743
`FFL
`-0.667T3
`Fo
`3.5000
`IAG DIS
`Oo. 7702
`OAL
`0.6000
`PARAXTAL IMAGE
`ET
`0.4751
`
`
`ANG
`26, 5000
`
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`ENTRANCE POPIL
`
`
`PIA
`0.2722
`
`
`THI
`0.1945
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`EXIT PORTL
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`O.,e442
`PIA
`
`
`THI
`0.0805
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`
`
`2. Select surfaces 1 to Image in the LDM spreadsheet window (click in the surface
`2 column and drag to Image to select the range).
`
`3. Choose the Edit > Scale menu to displaya dialog box (mote that the surface
`Tange is set te 1 to Image).
`
`4.
`
`(Click the button labeled Scale Effective Focal Length, then enter the value 6.0
`in the field labeled Scale Value.
`
`30
`
`CODE V Introductory User's Guide
`
`
`
` Ex. 1008
`
`HP,
`
`
`
`
`
`Camera Lens
`Just Do Tt: Design a Digita
`Chapter 2
`
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`§. Click OF to scale the lens
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`
`
`6 Click the Execute button GQ im the List First Order Data window to update
`
`Note that the EFL value is now 6 mum as desired. Note also that the paraaal
`mage heir is 2.99 mm (close enough to the desired 3 mm)
`
`7. Click the Execute button in the Quick 2D Labeled Plet window to update the
`Picture 23 shown below
`
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`DODE VWIntraductary Leer's Guide
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`a1
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`
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` Ex. 1008
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`HP,
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`
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