Portable reflection and transmission Newton's ring demonstration instrument

Abstract

The present invention provides a portable reflection and transmission Newton's ring demonstration instrument. The demonstration instrument comprises a Newton's ring instrument, a reflection light source, a reflector, a spectroscopic plate, a rack slideway left support, a rack slideway, a lock screw, a rack slideway right support, a focusing manual screwing gear, a convex lens, a 200V plug, a total switch, a transmission light source, a transmission light switch, a power box, a reflection light switch, a color filter set, a base plate, a box body, a color filter support, a convex lens frame, a handle, a box cover and a sliding block. The color filter set comprises a color filter frame, a color filter 1 and a color filter 2. The portable reflection and transmission Newton's ring demonstration instrument is integrated in a suitcase, and is portable and small, convenient to carry and simple to operate. The side cover of the box body can be taken down after being opening to directly display an internal structure, and the Newton's ring demonstration instrument can be directly used for theory explaining when application in class. The Newton's ring demonstration instrument is suitable for demonstration demand of a plurality of indoor occasions such as the college physics class, the optics theory class or activities to popularize scientific knowledge, etc.

Description

technical field [0001] The invention relates to a teaching and popular science demonstration instrument, in particular to a portable reflection and transmission Newton ring demonstration instrument. Background technique [0002] Newton's ring interference phenomenon is an important and typical content in wave optics in university physics. Related principles and technologies are widely used in production and scientific research, such as measuring the radius of curvature of a lens and measuring the flatness of a smooth plane. However, in actual teaching, the existing experimental devices must be realized in a darkroom environment, using a microscope, and using sodium lamps or mercury lamps as light sources. These experimental conditions limit the theoretical classroom where multiple classes are combined. It is complicated and cannot be carried, and the conditions in the darkroom cannot be met. With a microscope, multiple people cannot watch at the same time. In particular, tea...

AI Technical Summary

Problems solved by technology

However, in actual teaching, the existing experimental devices must be realized in a darkroom environment, using a microscope, and using sodium lamps or mercury lamps as light sources. These experimental conditions limit the theoretical classroom where multiple classes are combined. It is complicated and cannot be carried, and the conditions in the darkroom cannot be achieved. With a microscope, many people cannot watch at the same time, especially teachers and students cannot see the phenomenon at the same time, and cannot explain it simultaneously. Moreover, a large class of more than 100 people does not have time for everyone to take turns to look at the microscope.

The prior art (portable multi-light source Newton ring demonstrator, patent number CN201521096095.8 uses a Newton ring instrument with a small size, a camera is installed in the structure, and the phenomenon must be observed through a display or a projector, and the transmission interference phenomenon cannot be demonstrated Compared with reflection and transmission, the interference pattern produced by multiple light sources illuminated at different positions will shift from the center of light intensity, making the imaging effect worse

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