CN203311714U - LED combined object screen light source - Google Patents

Abstract

The utility model discloses an LED combined object screen light source. The LED combined object screen light source comprises an upright rod and a light source board fixed on the top of the upright rod; the front surface of the light source board is provided with LED arrays composed of 25 LEDs, wherein the 25 LEDs are arranged in five rows and five columns to form a matrix; the row pitch and the column pitch of the 25 LEDs are equal; the back surface of the light source board is correspondingly provided with switch arrays for the LEDs, wherein the switch arrays are composed of 25 buttons , wherein the 25 button are arranged in five rows and five columns to form a matrix; and the row pitch and the column pitch of the 25 buttons are equal; and the switching on and switching off of each LED is independently controlled through a corresponding button switch at the back surface. The LED combined object screen light source of the utility model can be eight used as a light source or an object screen; and the LED combined object screen light source has the advantages of simple structure and convenient use, and can facilitate experimental research of lens imaging rules.

Description

A kind of LED composition screen light source

Technical field

The utility model relates to a kind of Experiments of Optics apparatus, is specially a kind of LED composition screen light source.

Background technology

In the experiment of research lens image formation rule, need to provide the object of imaging.At present, the commonly used candle of lighting is as the imaging thing, or irradiates thing screen with hollow " 1 " font as the imaging thing with Down lamp.During as the imaging thing, candle flame itself has instability with the candle of lighting, and with potential safety hazard, the candle drop is fallen on experiment equipment and is difficult to cleaning, in experiment, is difficult to judge the left and right position relationship of picture and thing.While with " 1 " vee V, shielding, imaging thing shape is comparatively single, improper if put the position of light source and thing screen, also can directly affect imaging effect.Lack at present solution preferably.

Summary of the invention

The purpose of this utility model is to provide and not only can be used as light source, but also can serve as a kind of LED composition screen light source of picture thing.

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions: a kind of LED composition screen light source, comprise vertical rod and be fixed on the light source board at vertical rod top, it is characterized in that: described light source board front is provided with LED array, described LED array is comprised of 25 LED, by the five-element's five row, be arranged in square formation, line-spacing equates with the row distance; Described light source board back side correspondence is provided with the switch arrays of LED, described switch arrays are comprised of 25 pushbutton switches, by the five-element's five row, be arranged in square formation, line-spacing, row are apart from the line-spacing with LED array, row apart from equating, each LED independently controls its on/off by pushbutton switch corresponding to its back side.

The utility model is owing to adopting above-mentioned design, and can realize following beneficial effect: each LED on light source board can independently control its break-make by corresponding pushbutton switch, thereby can utilize as required LED to be combined into the imaging thing of various shape.The utility model both can be used as light source, and available crop is shielded again, and it is simple in structure, easy to use, is conducive to the experimental study of lens image formation rule.

The accompanying drawing explanation

The utility model is described in further detail below in conjunction with accompanying drawing.

Fig. 1 is front schematic view of the present utility model.

Fig. 2 is schematic rear view of the present utility model.

Fig. 3 is the circuit catenation principle figure of LED in the utility model.

Fig. 4 is embodiment 1 of the present utility model---" F " font imaging thing.

Fig. 5 is embodiment 2 of the present utility model---" on " font imaging thing.

Fig. 6 is embodiment 3 of the present utility model---" ↑ " forms as thing.

Fig. 7 is embodiment 4 of the present utility model---" → " forms as thing.

In figure: 1 is light source board, and 2 are vertical rod, and 3 is LED array, and 4 is switch arrays.

Embodiment

Below in conjunction with accompanying drawing, the utility model is further described.

As shown in Figure 1 and Figure 2, the utility model comprises vertical rod 2 and is fixed on the light source board 1 at vertical rod 2 tops, light source board 1 front is provided with LED array 3, LED array 3 by L1H1, L1H2, L1H3, L1H4, L1H5, L2H1, L2H2, L2H3, L2H4, L2H5, L3H1, L3H2, L3H3, L3H4, L3H5, L4H1, L4H2, L4H3, L4H4, L4H5, L5H1, L5H2, L5H3, L5H4, L5H5 totally 25 LED form, by the five-element's five row, be arranged in square formation, line-spacing equates with the row distance; Light source board 1 back side correspondence is provided with the switch arrays 4 of LED, switch arrays 4 by K1N1, K1N2, K1N3, K1N4, K1N5, K2N1, K2N2, K2N3, K2N4, K2N5, K3N1, K3N2, K3N3, K3N4, K3N5, K4N1, K4N2, K4N3, K4N4, K4N5, K5N1, K5N2, K5N3, K5N4, K5N5 totally 25 pushbutton switches form, by the five-element's five row, be arranged in square formation, line-spacing, row are apart from the line-spacing with LED array, row apart from equating.

As shown in Figure 3, light emitting diode L1H1 and button switch K 1N1 branch road in series, K1N1 controls the break-make of L1H1; L1H2 and K1N2 branch road in series, K1N2 are controlled the break-make of L1H2, and the rest may be inferred, with power supply, are connected after each branch circuit parallel connection, and each LED can control independently by the pushbutton switch at its back side that it is bright secretly.

Embodiment 1: closed K1N1, K1N2, K1N3, K1N4, K1N5, K2N1, K3N1, K3N2, K3N3, K3N4, K4N1, K5N1, light L1H1, L1H2, L1H3, L1H4, L1H5, L2H1, L3H1, L3H2, L3H3, L3H4, L4H1, L5H1, form " F " shown in Figure 4 font imaging thing.

Embodiment 2: closed K1N3, K2N3, K3N3, K3N4, K3N5, K4N3, K5N1, K5N2, K5N3, K5N4, K5N5, light L1H3, L2H3, L3H3, L3H4, L3H5, L4H3, L5H1, L5H2, L5H3, L5H4, L5H5 form shown in Figure 5 " on " font imaging thing.

Embodiment 3: closed K1N3, K2N2, K2N3, K2N4, K3N1, K3N3, K3N5, K4N3, K5N3, light L1H3, L2H2, L2H3, L2H4, L3H1, L3H3, L3H5, L4H3, L5H3, form " ↑ " shown in Figure 6 font imaging thing, can be used for judging the upper and lower relation as with thing.

Embodiment 4: closed K1N3, K2N4, K3N1, K3N2, K3N3, K3N4, K3N5, K4N4, K5N3, light L1H3, L2H4, L3H1, L3H2, L3H3, L3H4, L3H5, L4H4, L5H3, form " → " shown in Figure 7 font imaging thing, can be used for judging the left and right relation as with thing.

Claims (1)

1. LED composition screen light source comprises vertical rod and is fixed on the light source board at vertical rod top that it is characterized in that: described light source board front is provided with LED array, and described LED array is comprised of 25 LED, is arranged in square formation by the five-element's five row, line-spacing be listed as distance and equate; Described light source board back side correspondence is provided with the switch arrays of LED, described switch arrays are comprised of 25 pushbutton switches, by the five-element's five row, be arranged in square formation, line-spacing, row are apart from the line-spacing with LED array, row apart from equating, each LED independently controls its on/off by pushbutton switch corresponding to its back side.

Images