CN207690372U - A kind of convex lens image-forming discipline Experimental Research instrument - Google Patents

Abstract

The utility model is related to Physical Experiment fields, disclose a kind of convex lens image-forming discipline Experimental Research instrument, include that the marker being combined into wooden box by flashlight, convex lens, optical bench, optical screen form, the marker can move left and right on the optical bench, the flashlight placing groove is equipped in the wooden box, a black card with the arrow is placed in front of the light bulb of the flashlight, the optical screen is equipped with the arrow big with the arrow etc..There is easy to operate, suitable classroom instruction demonstration and student's inquiry experiment, and the advantage that intuitive is strong using the technical solution.

Description

A kind of convex lens image-forming discipline Experimental Research instrument

Technical field

The utility model is related to Physical Experiment field, more particularly to a kind of convex lens image-forming discipline Experimental Research instrument.

Background technology

Lens image formation rule is the core in senior middle school's geometric optics content, and teaching material is probed by using candle and optical bench Mirror imaging law.Candle combustion has security risk；As candle constantly burns, object height persistently changes, and needs constantly to be adjusted to Coaxial state；The size for comparing object and picture needs that apparently the size of comparative and picture, optical bench are relatively bulky back and forth.

Utility model content

The utility model embodiment is designed to provide a kind of convex lens image-forming discipline Experimental Research instrument, easy to operate, It is suitble to classroom instruction demonstration and student's inquiry experiment, and intuitive is strong.

A kind of convex lens image-forming discipline Experimental Research instrument that the utility model embodiment provides, including by flashlight and wooden box Marker, convex lens, optical bench, the optical screen composition being combined into, the marker can move left and right on the optical bench, institute It states and is equipped with the flashlight placing groove in wooden box, a black card with the arrow, institute are placed in front of the light bulb of the flashlight It states optical screen and is equipped with the arrow big with the arrow etc..

Optionally, using one black card with the arrow of PVC board hollow out.

Optionally, the optical bench uses wood materials.

Optionally, the height of the marker is fixed.

Optionally, the marker, convex lens and optical screen are fixed in the sliding slot of the optical bench by sliding block.

Therefore using the present embodiment technical solution, due to being combined into mark with wooden box 12 using the flashlight 11 Object 10 reduces security risk, easy to operate, is suitble to classroom instruction demonstration and student's inquiry experiment, and intuitive is strong.

Description of the drawings

In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only It is some embodiments of the utility model, for those of ordinary skill in the art, before not making the creative labor property It puts, other drawings may also be obtained based on these drawings.

Fig. 1 is a kind of convex lens image-forming discipline Experimental Research instrument schematic diagram provided by the utility model.

Specific implementation mode

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts The every other embodiment obtained, shall fall within the protection scope of the present invention.

Embodiment：

The present embodiment provides a kind of convex lens image-forming discipline Experimental Research instrument, as shown in Figure 1, including by flashlight 11 and wood Marker 10 that box 12 is combined into, convex lens 20, optical bench 30, optical screen 40 form, the marker 10, convex lens 20 and optical screen 40 are fixed in the sliding slot of the optical bench 30 by sliding block, and the marker 10 can move left and right on the optical bench 30 It is dynamic, 11 placing groove of the flashlight is equipped in the wooden box 12, placing one in front of the light bulb of the flashlight 11 uses PVC board Hollow out black card with the arrow, the optical screen 40 can move left and right on the optical bench 30, the optical screen 40 be equipped with The big arrow such as the arrow of the hollow-out part, can directly comparative and picture size.It can be, but not limited to, the optical bench 30 use wood materials.The height of the marker 10 is fixed.Marker 10 is combined into using the flashlight 11 and wooden box 12, Security risk is reduced, the wooden box 12 can move left and right on optical bench 30, and height is fixed, can not have to always adjust the mark Know the height of object 10.

Each component is installed, the switch of the flashlight 11 is opened, the wooden box 12 is moved left and right and changes object distance, left and right is moved The dynamic optical screen 40 is found clearly as observing amplification and diminution, upright and handstand, real image and the virtual image of picture；Image distance is measured, Lens image formation rule can be obtained by summarizing.

As it can be seen that the program can demonstrate a variety of situations of lens imaging, it is suitble to classroom instruction demonstration and student's inquiry experiment；Directly The property seen is strong, can be immediately seen amplification and diminution, upright and handstand, real image and the virtual image of picture；It is easy to operate, it is only needed in experimentation Opening the position of flashlight power switch, change marker and optical screen can be operated.

Embodiments described above does not constitute the restriction to the technical solution protection domain.It is any in above-mentioned implementation Modifications, equivalent substitutions and improvements etc., should be included in the protection model of the technical solution made by within the spirit and principle of mode Within enclosing.

Claims (5)

1. a kind of convex lens image-forming discipline Experimental Research instrument, which is characterized in that include the mark being combined by flashlight and wooden box Object, convex lens, optical bench, optical screen composition, the marker can be moved left and right on the optical bench, be equipped in the wooden box A black card with the arrow is placed in the light bulb front of the flashlight placing groove, the flashlight, and the optical screen is equipped with The big arrow with the arrow etc..

2. a kind of convex lens image-forming discipline Experimental Research instrument as described in claim 1, which is characterized in that use PVC board hollow out One black card with the arrow.

3. a kind of convex lens image-forming discipline Experimental Research instrument as claimed in claim 2, which is characterized in that the optical bench uses Wood materials.

4. a kind of convex lens image-forming discipline Experimental Research instrument as claimed in claim 3, which is characterized in that the height of the marker Degree is fixed.

5. a kind of convex lens image-forming discipline Experimental Research instrument as claimed in claim 4, which is characterized in that the marker, convex Lens and optical screen are fixed in the sliding slot of the optical bench by sliding block.