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Ni vision development module crack. Homemade Simple Pinhole Camera Simple Pinhole camera is an interesting activity to understand the principle, construction and working of a modern Camera, you can use simple household things to make it and can observe its working as well. Level: Elementary/Secondary Concept: Both a pin-hole camera and a lens camera produce real image on the screen.

Introduction: A pinhole camera is the original of a lens camera. It consists of a pin-hole, a dark box and a screen. Instead of a pin-hole, a lens camera has a convex lens and it makes a brighter image on the screen than a pin-hole camera. Let’s make a camera model which enables us to explain the principles of both types of camera. This camera model consists of two boxes, the outer box with a pin-hole or a convex lens and the inner box with a screen. If we use an empty juice box with a plastic opening tip as an inner box, we only have to make an outer box using cardboard. Materials: Empty juice box (9cm by 5.8cm, height: 19.5cm) Black cardboard (25cm by 40cm) -------- You may paint white cardboard black.

Convex lens (focal length: 10-15cm, diameter: 3- 4cm) Aluminum foil, translucent plastic bag, Cutter knife/Scissors, Paper glue, Sello-tape, Vinyl tape Fabrication: 1. Measure the sizes of the empty juice box. (length: l [cm], width: w[cm], height: h[cm]) 2. Draw the sketch diagram for the outer box on the black cardboard as shown in Fig.4.

Programma dlya rascheta obmotok elektrodvigatelya. Cut the black cardboard and make up the outer box using paper glue as shown in Fig.5. Make a rectangular hole (4cm by 7cm) on the bottom end of the empty juice box. Cut the appropriate size of the translucent plastic bag and cover the rectangular hole with it.

Then, fix it using sellotape as shown in Fig.6. Make two attachments, one is for a pin-hole camera the other is for a lens camera as shown in Fig.7. Attach the cardboard with a pinhole to the square hole of the outer box and observe the image of an object on the screen. Attach the cardboard with a convex lens to the square hole of the outer box, move the inner box to focus and observe the image of an object on the screen. Simple Pinhole Camera Science Real image by a pin-hole camera: When an object PQ is placed in front of a pin-hole camera, an upside-down image appears on the screen. A few rays leaving point P pass through the pin-hole and reach point p’ on the screen. Most of the rays leaving point P don’t pass through the pin-hole because light travels in straight line.