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LEGO Interferometer, Руководство пользователя, Страница: 4 / 6

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Adjust the laser pointer by using the gear D. The laser must be reflected 

back to the pointer at the same height as it is leaving the pointer.  

 

 

Correct the laser’s horizontal angle by using parts A and B so that the 

laser is reflected exactly back into the opening of the pointer. 

Switch off 

the laser pointer.

 

 

 

 

5. ADDING CALIBRATABLE MIRROR 

Secure  the  mirror  mount  with  a  rubber  band  against  the  play  during 

sideways rotations.  

 

 

 

Place  a  rubber  band  in  front  of  the  movable  arm  so  that  it  is  pressed 

against the Lego screw. 

 

 

Locate the front side of the front surface mirror (see above).  Place the 

mirror on the intended location and fixate it with the T-link (E). During 

this step, it is important that the mirror is placed exactly as shown. 

 

 

 

Adjust  the  mirror  mount  by  using  the  two  gears  so  that  the  mirror  is 

perpendicular to the ground plate and parallel to the bobble pattern. 

 

 

 

 

Содержание Interferometer

Страница 1: ...rpointer LP18 2x Front surface mirror 30mm x 20mm 1x Semi transparent front surface mirror Glass lens diameter d 18mm f 26 5mm Hexagon screw M5 x 40mm Rubber bands IMPORTANT INFORMATION Before adding the parts please be aware that the optical components are very prone to damage and therefore have tob e handled with care The quality of the interference patterns will be disrupted by fingerprints on ...

Страница 2: ...ust the laserpointer into a horizontal position 2 ADDING THE SCREW Remove the bricks as shown Guide the M5 screw through the holes in the blue bricks Put a rubber band several times around the two angles to give additional support to the screw Put the bricks with the screw back at its former place The head of the screw will be put between the two angles as shown ...

Страница 3: ... Pull down the rubber band to the base of the bricks Determine front and backside of the front surface mirror Hold the mirror as shown in the picture Slide the mirror between the rubber band and the bricks The back surface should point towards the bricks Wind a second rubber band around the top of the bricks and the mirror 4 CALIBRATING THE LASER Switch on the laser pointer Use the clamp to perman...

Страница 4: ...MIRROR Secure the mirror mount with a rubber band against the play during sideways rotations Place a rubber band in front of the movable arm so that it is pressed against the Lego screw Locate the front side of the front surface mirror see above Place the mirror on the intended location and fixate it with the T link E During this step it is important that the mirror is placed exactly as shown Adju...

Страница 5: ... rods It should be in a 45 angle tot he bubble pattern rows on the ground plate 7 CALIBRATING CALIBRATABLE MIRROR Place the screen at the position shown Switch on the laser pointer There should be two points visible at the screen Adjust the calibratable mirror so that the two points are on top of each other Place the screen at a larger distance away from the construction and adjust the mirror if t...

Страница 6: ...s Therefore it is advised to place it on a stable surface It might be helpful to use a clamp for fixating the interferometer to the table 3 The stability can often be increased by making sure to press the bricks into each other whilst building the parts This can be especially helpful at the links between the ground plates CALCULATING THE WAVELENGTH To determine the wavelength of the laser the gear...

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