OXP-19 Camera  

Topics

Pinhole Camera
Objective
CCD Sensor
Magnification
Depth of Field


Examples of Investigation and Measurement

Model of camera obscura
A pinhole camera is set up, consisting of a narrow diaphragm and €“ instead of the classical matt screen €“ a CCD array connected to a monitor. In this arrangement even dim images are detected and do not need to be observed in a dark room.

Influence of diaphragm size and position
By increasing the size of the diaphragm the brightness increases, but the sharpness of the image becomes worse. By changing the distance between diaphragm and CCD array the magnification of the pinhole camera is varied.

Influence of optics
The use of collimating lenses in front and behind the diaphragm increases the brightness and improves the sharpness dramatically. Several types of objectives can be set up and investigated. A variable diaphragm demonstrates the effect of screening and the changes of the depth of field are observed
 
 


Required Equipment

Cat. No.     Qty.     Description
02.0300      1        Profile rail, 300 mm
02.1024      1        Plate holder, carrier 25
02.2126      2        Mounting plate, click 25, carrier 20
02.2132      2        Mounting plate, click 30, carrier 20
02.2528      1        Click mount 25, 0.5 mm aperture
02.2529      1        Click mount 25, 0.1 mm aperture
04.0051      1        Biconvex lens f=100 mm, 25.4, click 30
04.0053      1        Biconvex lens f=150 mm, 25.4, click 30
04.0060      1        Plano convex lens f=40 mm, 25.4, click 30
04.0062      1        Plano convex lens f=60 mm, 25.4, click 30
04.0138      1        IR block filter, 50x50x3
04.0308      1        Iris aperture, 14 mm, click 25
09.2930      1        CCD array with monitor