Homemade Slide Projector Technology Small Handmade DIY Phantom Lamp Science Experimental Toy
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CN-099:Ship between: Dec 03 - Dec 05
It is exciting to build the mini projector from the flat cardboard pieces. You need a strong glue that binds quickly and soldering is best for the metal battery contacts.The instructions are only in Chinese, a bit of which I can understand, but I can imagine problems if someone doesn't. The photos are not too helpful.The working end product is far from being an efficient slide projector. Sharp image, but mall picture in fairly dim light. But for an educational toy and for fun, fair enough.
Homemade slide projector courseware A slide projector is an optical instrument that magnifies a picture and images it on a screen. It is an important audio-visual equipment widely used in electrification teaching. The slide projector is mainly composed of a light source, a condenser mirror, a projection lens and the like. When a transparent picture is displayed, the light from the light source is concentrated by the condensation mirror, and the picture is evenly illuminated, and the picture is enlarged on the screen by the projection lens to cause an enlarged inverted real image. The magnification of the slide projector is equal to the ratio of the distance from the lens to the screen to the focal length of the lens. Reflective slides can be used when displaying opaque pictures or flat objects. The light emitted by the strong light source is concentrated by the concave mirror and irradiated to the picture placed on the anti-book table, and then the reflected light is reflected on the screen by the plane mirror and the objective lens. Purpose: 1. Understand the structure and principle of telescopes and microscopes 2. Understand the importance of the application of convex lens imaging to human life and social development, and understand the sustainable development of science and technology. Experimental cognition: Spotlight: A tool for shielding peripheral light Concave mirror: concave mirror and convex mirror imaging follow the law of light reflection: the incident angle is equal to the reflection angle, and the light incident along the normal of the reflection point is the same as the incident road but opposite in direction; Experimental steps: 1. Experimental preparation to know the experimental equipment: concentrating tube, concave mirror. experimental report: In this hybrid optical system, the utilization of the light source is improved due to the action of the deep ellipsoidal mirror. Condenser-type optics are commonly used in popular slide projectors, while concentrating and reflective hybrid optics are commonly used in higher-end slide projectors. When the slide projector is working, the light from the light source is reflected by the mirror to the concentrating mirror. After concentrating, most of the light is evenly irradiated onto the slide. The transmitted light passes through the projection lens and presents an enlarged inverted on the screen. Real image. Material: paper Battery: 2 AA batteries ( not included )
Dimensions and Weight
Product weight: 0.1000 kg Package weight: 0.1200 kg
Package Contents: 1 x Set of Slide Projectors
Small Parts Disclaimer: These toys contain small parts, not for children under 3 years in case of swallowing or choking . We do not accept any responsibility or liability for misuse of this or any other product.