CN2730633Y - Ball-point pen with shadowless illumination - Google Patents

Abstract

The utility model provides a ball pen with shadowless illumination, constituted by that a light guide penholder, a pen core, a concave lens light guide cap and a light source device comprising a semiconductor LED, a cell and a switch are connected in series. The pen core is arranged inside the cavity of the light guide penholder whose one end is connected with the concave lens light guide cap. The lower end of the concave lens light guide cap tightly sheathes the pen core in the light guide penholder. The upper ends of the concave lens light guide cap and the light guide penholder are connected to the inside of the crust of the light source device, making the LED to be placed at the upper end of the concave lens light guide cap. The light guide penholder and the concave lens light guide cap can be made of polystyrene resin. When the switch is closed, the semiconductor LED emits light rays which enter the light guide penholder through the concave lens light guide cap and emit out from the other end of the penholder, the purposes of illumination and writing being achieved. Owing to that the circular light produced by the light rays emitting out from the light guide penholder illuminates the writing points of the pen core, the writing with shadowless illumination can be accomplished on occasion of writing.

Description

The shadowless lighting ball pen

Technical field

The utility model relates to the lighting device that a kind of photoconduction penholder transmits light source, the shadowless lighting ball pen that can throw light on when especially writing.

Background technology

At present, all there is not to transmit the lighting device of light source in the structure of known writing implement ball pen by penholder.Use general ball pen must rely on external light source, and under dark surrounds, can't normally write.

Summary of the invention

In order to overcome the weakness that existing ball pen can't normally be write under insufficient light and dark surrounds, the utility model provides a kind of shadowless lighting ball pen.This pen not only can normally be write under insufficient light and dark surrounds, and can realize that shadowless lighting writes when writing.

The technical scheme that its technical problem that solves the utility model adopts is: the shadowless lighting ball pen is linked in sequence by penholder, pen core, concavees lens leaded light cap with the light source device that semiconductor light-emitting-diode, battery and switch are composed in series.Described penholder is the photoconduction penholder, and photoconduction penholder and concavees lens leaded light cap can adopt the polystyrene resin manufacturing.In the cavity of photoconduction penholder, place pen core, one end of photoconduction penholder connects concavees lens leaded light cap, the lower end of the concavees lens leaded light cap pen core in the photoconduction penholder that is locked, the upper end of concavees lens leaded light cap and photoconduction penholder connects in the shell of light source device, makes light emitting diode place the upper end of concavees lens leaded light cap.When switch closure, semiconductor light-emitting-diode sends light ray, and light enters the other end ejaculation of photoconduction penholder from penholder by concavees lens leaded light cap, reaches the purpose that illumination is write.Because light sends writing a little of the annular bright pen core of illumination when the photoconduction penholder penetrates, write Shi Gengneng realization shadowless lighting and write.

The beneficial effects of the utility model are, can normally write under insufficient light and dark surrounds, and can realize that shadowless lighting writes when writing.

Description of drawings

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

It among the figure sectional structural map of shadowless lighting ball pen embodiment.

1. photoconduction penholders among the figure, 2. concavees lens leaded light cap, 3. light source device, 4. pen core, 5. semiconductor light-emitting-diode, 6. battery, 7. switch.

The specific embodiment

Among the figure, pen core (4) is put into photoconduction penholder (1), and the concavees lens leaded light cap (2) that is locked, concavees lens leaded light cap (2) fixedly pen core (4) be the more important thing is and can be made more light enter in the photoconduction penholder (1).Be locked behind the concavees lens leaded light cap (2), be connected with the light source device of forming with semiconductor light-emitting-diode (5), battery (6) and switch (7) series connection (3) again.When switch (7) was closed, semiconductor light-emitting-diode (5) sent light ray, and light enters the other end ejaculation of photoconduction penholder (1) from pen by concavees lens leaded light cap (2), reaches the purpose that illumination is write.Because light sends writing a little of the annular bright pen core of illumination when the photoconduction penholder penetrates, just can realize when writing that shadowless lighting writes.

Claims (1)

1. A kind of shadowless lighting ball pen, be linked in sequence by photoconduction penholder, pen core, concavees lens leaded light cap and the light source device formed with semiconductor light-emitting-diode, switch, battery, it is characterized in that: an end of photoconduction penholder connects concavees lens leaded light cap, the lower end of the concavees lens leaded light cap pen core in the photoconduction penholder that is locked, the upper end of concavees lens leaded light cap and photoconduction penholder connects in the shell of light source device.

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