CN2469514Y - New model experiment facility of research convex lens imaging - Google Patents

Abstract

A novel experiment device for studying imaging of a convex lens comprises a candle (2), a convex lens (3) and a light screen (4) respectively arranged on an identical hexahedron wooden seat (5) which arranged on the same ruler (1). The wooden seat (5) can slide rightwards and leftwards along the ruler (1). Since the scale of the ruler faces towards students, the device can demonstrate imaging of the convex lens conveniently in class. The utility model has convenient and simple operation and is an ideal optic teaching aid.

Description

A kind of novel experimental provision of studying the convex lens imaging

The utility model relates to a kind of optics teaching aid of novel research convex lens imaging.

At present, the middle school optics teaching " is studied the various situations of convex lens imaging " with experiment, normally be sidelong a candle at one of convex lens, is sidelong an optical screen at another, comes instrumentality distance or image distance to show various imaging situations by mobile candle or optical screen.This obviously is not easy to experimental implementation.In order to address this problem, the patent of Liu Wenyi (99251132,1) application has taked to give candle, convex lens and optical screen to add a magnetic receiver respectively, inhales the measure on same steel ruler.Though this measure is feasible,, move bothersome and overturning easily, so caused inconvenience to experimental implementation because magnet and steel ruler have bigger attractive force.And ruler lies on the desktop, is not easy to observe scale.

The purpose of this utility model is the experimental provision that a kind of novel research convex lens imaging will be provided, and it is the numerical value of display material distance and image distance accurately, and structure is firm, is convenient to left and right sides slippage, is beneficial to the imaging of better research convex lens.

The purpose of this utility model is achieved in that and respectively candle, convex lens and optical screen is positioned on three identical regular hexahedron seats, saw out a narrow groove on the wood seat, three wood seats can be ridden and be embedded on the same ruler, and can be placed on and ride chi on the desktop of level and horizontally slip.

Owing to adopt such scheme, candle, convex lens, optical screen can ridden same ruler by wood seat separately and horizontally slipped, resistance is very little, both possessed 99251132, whole advantages of No. 1 patent, can overcome the attraction steel ruler mobile shortcoming that brings inconvenience again, simultaneously because the scale on the ruler can make things convenient for observation of students object distance and image distance towards the student.This is the beneficial effects of the utility model.

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is the longitudinal profile structural map of an embodiment of the utility model.

Among the figure 1, ruler 2, candle 3, convex lens 4, optical screen 5, wood seat

In Fig. 1, candle (2), convex lens (3), optical screen (4) be installed in respectively that wood seat (5) is gone up, wood seat (5) is gone up and ridden on the ruler (1) by narrow groove embedding, and can horizontally slip along ruler (1).Can be by slip candle (2) and optical screen (4) instrumentality distance and image distance, the numerical value of object distance and image distance can be shown by the scale on the ruler.

Claims (1)

1, a kind of novel experimental provision of studying the convex lens imaging, by three regular hexahedron wood seats that candle, convex lens, optical screen are housed respectively, ride on the same ruler by its narrow groove embedding and to constitute, it is characterized in that: three wood seats ride on the same ruler by narrow groove embedding separately.