CN1887603A

CN1887603A - LED lighting pen

Info

Publication number: CN1887603A
Application number: CN 200610052453
Authority: CN
Inventors: 胡积献; 陆军明
Original assignee: LIBIDA INTERNATIONAL TRADE CO Ltd NINGBO BONDED AREA
Current assignee: LIBIDA INTERNATIONAL TRADE CO Ltd NINGBO BONDED AREA
Priority date: 2006-07-12
Filing date: 2006-07-12
Publication date: 2007-01-03

Abstract

The LED lighting pen includes a metal shaft, a refill, a column battery, a voltage raising module, a conducting spring, a first LED in the head of the shaft and a second LED in the tail of the shaft. The column battery has one conducting sleeve connected to its negative pole; the first LED has its positive electrode connected electrically to the shaft and negative electrode connected electrically to the conducting spring; and the second LED has its positive electrode connected electrically to the shaft and negative electrode connected electrically to the conducting sleeve. The present invention has two LED loops and makes it possible for these two LED's separately in the head and the tail of the shaft to emit light.

Description

A kind of LED light pen

Technical field

The present invention relates to a kind of lettering pen with lighting device, relating to a kind of specifically is the LED light pen of lighting source with LED (light emitting diode).

Background technology

People need writing words in the dark sometimes, though the paper pen is arranged in the hand, but can not make one's wish fulfilled, so, the light pen that has lighting source arises at the historic moment, because this light pen can also doublely be made miniature flashlight, help in the dark to seek article, see other purposes such as wrist-watch or reading letter, therefore be subjected to people's favor.At present, having occurred many on the market is the LED light pen of lighting source with the white light LEDs, in Chinese utility model patent, the patent No. is that 02200769.5 (notification number is CN2520256Y) " knock-type special soft cover lamp pen " and the patent No. are that " light pen of the stretching pen cap " of 03253042.0 (notification number is CN2645929Y) all discloses this light pen, but because the luminous voltage of white light LEDs needs more than the 3.6V, add that bulk is limited in the penholder, therefore, disclosed technical scheme all is to adopt the button cell of at least three series connection as power supply in these patents, and be difficult to adopt the dry cell of various models on the market, common column type battery such as rechargeable battery is as power supply, and because the diameter and the length of penholder are all limited, can't be with the column type batteries of three joint series connection as power supply, therefore how become the technical problem that the sector is badly in need of solution as the power supply of LED light pen with column type battery.At this problem, I have patent of invention in first to file, and application number is " a kind of LED light pen " of 200510107778.3 (publication number is CN1785691A), discloses a solution.This LED light pen be between battery and light emitting diode by one in the dress booster circuit boost module be electrically connected, pen core then runs through and mistake from the central authorities of this boost module, wherein battery is a column type battery.

On the other hand, the LED illuminator is except the most basic lighting source of conduct, some can be used as SOS distress signal lamp because of having flashing function, some can be used as the currency examine lamp because of having cash examining function, some band laser is then as laser indicator lamp, in some special occasions and unexpected environment, the LED that need thisly have specific function is luminous.And existing LED light pen all has only a luminous loop, be that light emitting diode can only be arranged on the place in the penholder, can not be provided with many places, be that existing technology is difficult to make two light emitting diodes that are separately positioned in the penholder two ends up and down simultaneously luminous, therefore, common LED light pen, its LED is only as lighting source, himself do not possess second LED illuminator, special light source can't be provided again, thereby be unsuitable for practical application.

Summary of the invention

Technical problem to be solved by this invention is to provide a kind of two light emitting diodes that are separately positioned in the penholder two ends up and down that can make simultaneously luminous at above-mentioned prior art present situation, thereby be more suitable for practical application, and adopt the LED light pen of common column type battery as power supply.

The present invention solves the problems of the technologies described above the technical scheme that is adopted: this LED light pen, include the metal penholder and be arranged on the pen core in the penholder, first light emitting diode that is positioned at the column type battery of penholder and the boost module of booster circuit is housed and is arranged on the penholder head, it is characterized in that:

Described column type battery is with the direction setting of its head positive pole towards the penholder head, and is provided with an end and the contacted conductive sleeve of GND in the battery outer race, and mutually insulated is isolated between this conductive sleeve and the penholder;

Afterbody at penholder also is provided with second light emitting diode, and the positive pole of this second light emitting diode is electrically connected with the metal penholder, and negative pole is electrically connected with the afterbody negative pole or the conductive sleeve of column type battery;

Between the positive pole of column type battery and first light emitting diode, be provided with boost module and power spring in turn; Boost module has first negative contact terminal on the first surface away from column type battery, and contacts with second end of power spring; Boost module has the input positive contact and second negative contact terminal on the second surface of contiguous column type battery, and is electrically connected with the positive pole and the described conductive sleeve of column type battery respectively; The output cathode contact of boost module then is electrically connected with the metal penholder; And described first negative contact terminal and second negative contact terminal are electrically connected in boost module inside;

The positive pole of described first light emitting diode is electrically connected with the metal penholder, and negative pole is electrically connected with first end of power spring.

Wherein, described conductive sleeve generally adopts metal material, and it can be enclosed, also can be the hollow out formula, also can be a rack form.

And being electrically connected between the positive pole of the input positive contact of boost module and column type battery, can adopt direct or indirect being electrically connected of existing various technology, but because of longitudinal space in the penholder very limited, can be arranged to following mode: on the second surface of the contiguous column type battery of described boost module, the input positive contact of boost module is arranged on central part, and with the positive pole of column type battery between directly contact or by a power spring mediate contact, second negative contact terminal of boost module is arranged on the peripheral position of second surface, and contact with described conductive sleeve, like this, therefore battery also can be limited between the boost module and second light emitting diode.

First light emitting diode that is positioned at the penholder head need be used for illumination usually, for improving brightness of illumination, simultaneously, for strengthening for ease of manufacturing, and just make in the luminous loop first light emitting diode, negative pole forms excellent contact, described first light emitting diode can be the light emitting diode group that is made of at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate of difference solid welding at a printed circuit board (PCB), on the negative plate, the positive plate of this printed circuit board (PCB) extends to periphery and contacts with the metal penholder, the negative plate of printed circuit board (PCB) then extend to its with the first end facing surfaces of power spring on and contact with first end of power spring, like this, the light emitting diode group that a plurality of sub-light emitting diodes are formed by printed circuit board (PCB) and respectively with the metal penholder, power spring contacts, thereby make the light emitting diode group also can form reliable luminous loop, guaranteed the brightness of illumination.

Equally, second light emitting diode also can be provided with a plurality of sub-light emitting diodes for improving brightness of illumination, promptly, described second light emitting diode also can be the light emitting diode group that is made of at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate of difference solid welding at a printed circuit board (PCB), on the negative plate, the positive plate of this printed circuit board (PCB) extends to periphery and contacts with the metal penholder, the negative plate of printed circuit board (PCB) then extend to its with column type battery negative pole facing surfaces on and contact with the negative pole or the conductive sleeve of column type battery, like this, second light emitting diode that a plurality of sub-light emitting diodes are formed makes it just by printed circuit board (PCB), negative pole respectively with the metal penholder, what the negative pole of column type battery was direct or indirect electrically contacts, save in the penholder space longitudinally, and formed reliable luminous loop.

For ease of up and down two light emitting diodes luminous of control, described boost module can also have a switch, and the operating portion of this switch passes the hole of penholder correspondence portion and exposes.

Adopt same design principle, utilize boost module booster tension, negative pole to be electrically connected equally by the conductive sleeve of battery periphery with battery, realization is positioned at penholder, and two light emitting diodes at two ends can be simultaneously luminous up and down, the present invention solves the problems of the technologies described above and also can adopt following technical scheme to be: this LED light pen, include the metal penholder and be arranged on the pen core in the penholder, first light emitting diode that is positioned at the column type battery of penholder and the boost module of booster circuit is housed and is arranged on the penholder head, it is characterized in that:

Described column type battery is with the direction setting of its head positive pole towards the penholder afterbody, and is provided with an end and the contacted conductive sleeve of GND in the battery outer race, and mutually insulated is isolated between this conductive sleeve and the penholder;

Afterbody at penholder also is provided with second light emitting diode, and described boost module promptly is arranged between this second light emitting diode and the column type battery; Boost module has first negative contact terminal on the first surface away from column type battery, and is connected with the negative electricity of second light emitting diode; Boost module has the input positive contact and second negative contact terminal on the second surface of contiguous column type battery, and is electrically connected with the positive pole and the described conductive sleeve of column type battery respectively; The output cathode contact of boost module then is electrically connected with the metal penholder, and the positive pole of second light emitting diode also is electrically connected with the metal penholder; And described first negative contact terminal and second negative contact terminal are electrically connected in boost module inside;

Then be provided with a power spring between first light emitting diode and column type battery, first end of this power spring is connected with the negative electricity of first light emitting diode, and second end of power spring is electrically connected with the afterbody negative pole or the conductive sleeve of column type battery.

And being electrically connected between the positive pole of the input positive contact of boost module and column type battery, can adopt direct or indirect being electrically connected of existing various technology, but because of longitudinal space in the penholder very limited, can be arranged to following mode: on the second surface of the contiguous column type battery of described boost module, the input positive contact of boost module is arranged on central part, and with the positive pole of column type battery between directly contact or by a power spring mediate contact, second negative contact terminal of boost module is arranged on peripheral position, and contacts with described conductive sleeve.

Equally, second light emitting diode also can be provided with a plurality of sub-light emitting diodes for improving brightness of illumination, promptly, described second light emitting diode also can be the light emitting diode group that is made of at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate of difference solid welding at printed circuit board (PCB), on the negative plate, the positive plate of this printed circuit board (PCB) extends to periphery and contacts with the metal penholder, the negative plate of printed circuit board (PCB) then extend to its with the boost module facing surfaces on and contact with first negative contact terminal of boost module, like this, second light emitting diode that a plurality of sub-light emitting diodes are formed makes it just by printed circuit board (PCB), negative pole respectively with the metal penholder, what the negative pole of column type battery was direct or indirect electrically contacts, save in the penholder space longitudinally, and formed reliable luminous loop.

Above-mentioned " electrical connection " refers between the two directly conduction contact or conducts electricity indirectly connect.

And described boost module, can adopt commercially available many boost modules, the model of producing as Shenzhen company of good GIANTSTAR ELECTRONICS is that to join the model that beneficial Electronics Co., Ltd. produces be that the boost module of LY501, the model that Nanjing Micro One Electronics Inc. produces are boost module of MEXX1C or the like in boost module, Shenzhen of 501C, the 1.5V voltage that the common column type battery of one joint produces is through these boost modules, and its output voltage can reach 5V.

Compared with prior art, the invention has the advantages that: participate in luminous loop by whole penholder, the positive pole output that is battery is electrically connected to first light emitting diode and second light emitting diode that is positioned at the penholder two ends respectively by the metal penholder, and set up the conductive sleeve that contacts with GND in the column type battery periphery, what promptly the negative pole of first light emitting diode was direct or indirect by power spring is electrically connected with conductive sleeve, what the negative pole of second light emitting diode was then direct or indirect is electrically connected with conductive sleeve, all form a complete luminous loop, make the luminous possibility that becomes of two LED that are separately positioned on the penholder two ends, like this, first light emitting diode can be selected common lighting source for use, the illuminator that second light emitting diode can select for use special occasions to use, such as the currency examine lamp, make the LED light pen become very practical; And column type battery makes the common column type battery of a joint 1.5V become possibility to LED power supply by boost module, promptly only with can make once the common column type battery that saves 1.5V be separately positioned in the penholder about two white light LEDs at two ends luminous; The present invention rationally utilizes the small space in the penholder, and science designs luminous loop, and same design principle, and design has two cover pillar batteries to place towards different technical schemes, is easy to apply.

Description of drawings

Fig. 1 is the structural representation of the embodiment of the invention one;

Fig. 2 is the partial enlarged drawing of I portion among Fig. 1;

Fig. 3 is the partial enlarged drawing of II portion among Fig. 1;

Fig. 4 is the partial enlarged drawing of III portion among Fig. 1;

Fig. 5 is the general assembly drawing of the embodiment of the invention one;

Fig. 6 is the structural representation of the embodiment of the invention two;

Fig. 7 is the partial enlarged drawing of IV portion among Fig. 6;

Fig. 8 is the partial enlarged drawing of V portion among Fig. 6;

Fig. 9 is the general assembly drawing of the embodiment of the invention two;

Figure 10 is about the circuit diagram of boost module among the embodiment of the invention one and the embodiment two.

The specific embodiment

Embodiment describes in further detail the present invention below in conjunction with accompanying drawing.

Embodiment one:

As Fig. 1～Fig. 5 and shown in Figure 10, this LED light pen includes metal penholder 1 and is arranged on pen core 2 in the penholder 1, is positioned at the column type battery 3 of penholder 1 and the boost module 4 of booster circuit is housed and be arranged on first light emitting diode 11 of penholder 1 head and be arranged on second light emitting diode 12 of penholder 1 afterbody;

Wherein, described column type battery 3 is with the direction setting of its head positive pole towards penholder 1 head, and be provided with an end and the contacted conductive sleeve 5 of column type battery 3 negative poles in column type battery 3 outer race, the mutually insulated isolation by insulation sleeve 51 between this conductive sleeve 5 and the penholder 1;

Be provided with boost module 4 and power spring 8 in turn between the positive pole of column type battery 3 and first light emitting diode 11, the positive pole of described first light emitting diode 11 is electrically connected with metal penholder 1, and negative pole is electrically connected with first end 81 of power spring 8;

Described boost module 4 has first negative contact terminal 41 on the first surface away from column type battery 3, and contacts with second end 82 of power spring 8; Boost module 4 has the input positive contact 43 and second negative contact terminal 42 on the second surface of contiguous column type battery 3, wherein, input positive contact 43 is arranged on central part, and and the positive pole of column type battery 3 between by a power spring 6 mediate contacts, thereby input positive contact 43 is electrically connected with the positive pole of column type battery 3, and second negative contact terminal 42 is arranged on the peripheral position of boost module 4 second surfaces, and contacts with described conductive sleeve 5 and be electrically connected; The output cathode contact 44 of boost module 4 is electrically connected with metal penholder 1 by power spring 7; And described first negative contact terminal 41 and second negative contact terminal 42 are electrically connected in boost module 4 inside;

Described boost module 4 also has a switch 45, and the operating portion of this switch 45 passes the hole of penholder 1 corresponding portion and exposes;

The positive pole of this second light emitting diode 12 is electrically connected with metal penholder 1, and negative pole is electrically connected with conductive sleeve 5, thereby is electrically connected with the negative pole of column type battery 3.

The light emitting diode group of described first light emitting diode 11 for constituting by a plurality of sub-light emitting diodes, the positive pole of each sub-light emitting diode, negative pole are distinguished solid welding on positive plate 11a, the negative plate 11b of a printed circuit board (PCB), the positive plate 11a of this printed circuit board (PCB) extends to periphery and contacts with metal penholder 1 by contact 91, the negative plate 11b of printed circuit board (PCB) then extend to its with first end, 81 facing surfaces of power spring 8 on and contact with first end 81 of power spring 8;

The positive pole of described second light emitting diode 12, negative pole are distinguished solid welding on positive plate 12a, the negative plate 12b of a printed circuit board (PCB), the positive plate 12a of this printed circuit board (PCB) extends to periphery and contacts with metal penholder 1 by contact 92, the negative plate 12b of printed circuit board (PCB) then extend to its with column type battery 3 negative pole facing surfaces on and contact with conductive sleeve 5, and be electrically connected with column type battery 3 negative poles.

The annexation of boost module 4 in the luminous loop of two led light sources, referring to Figure 10, among this figure, the light emitting diode on the left side is second light emitting diode 12, the light emitting diode on the right is first light emitting diode 11.

Embodiment two:

As Fig. 6～shown in Figure 10, this LED light pen includes metal penholder 1 and is arranged on pen core 2 in the penholder 1, is positioned at the column type battery 3 of penholder 1 and the boost module 4 of booster circuit is housed and be arranged on first light emitting diode 11 of penholder 1 head and be arranged on second light emitting diode 12 of penholder 1 afterbody;

Wherein, described column type battery 3 is with the direction setting of its head positive pole towards penholder 1 afterbody, and is provided with an end and the contacted conductive sleeve 5 of battery 3 negative poles in battery 3 outer race, between this conductive sleeve 5 and the penholder 1 by insulation sleeve 51 and mutually insulated is isolated;

Then be provided with a power spring 8 between described first light emitting diode 11 and column type battery 3, first end 81 of this power spring 8 is connected with the negative electricity of first light emitting diode 11, and second end 82 of power spring 8 is electrically connected with conductive sleeve 5;

Described boost module 4 promptly is arranged between this second light emitting diode 12 and the column type battery 3; Boost module 4 has first negative contact terminal 41 on the first surface away from column type battery 3, and is connected with the negative electricity of second light emitting diode 12; Boost module 4 has the input positive contact 43 and second negative contact terminal 42 on the second surface of contiguous column type battery 3, wherein, input positive contact 43 is arranged on the central part of boost module 4 second surfaces, and and the positive pole of column type battery 3 between by a power spring 6 mediate contacts, thereby the positive pole of itself and column type battery 3 is electrically connected, and second negative contact terminal 42 of boost module 4 is arranged on peripheral position, and contacts with described conductive sleeve 5, thereby is electrically connected with conductive sleeve 5; 44 of the output cathode contacts of boost module 4 pass through contact 93 and are electrically connected with metal penholder 1, and the positive pole of second light emitting diode 12 also is electrically connected with metal penholder 1; And described first negative contact terminal 41 and second negative contact terminal 42 are electrically connected in boost module 4 inside;

Described boost module 4 also has a switch 45, and the operating portion of this switch 45 passes the hole of penholder 1 corresponding portion and exposes.

The positive pole of described second light emitting diode 12, negative pole are distinguished solid welding on positive plate 12a, the negative plate 12b of printed circuit board (PCB), the positive plate 12a of this printed circuit board (PCB) extends to periphery and contacts with metal penholder 1, the negative plate 12b of printed circuit board (PCB) then extend to its with boost module 4 facing surfaces on and contact with first negative contact terminal 41 of boost module 4.

Claims

1, a kind of LED light pen, include metal penholder (1) and be arranged on the pen core (2) in the penholder (1), first light emitting diode (11) that is positioned at the column type battery (3) of penholder (1) and the boost module (4) of booster circuit is housed and is arranged on penholder (1) head, it is characterized in that:

Described column type battery (3) is with the direction setting of its head positive pole towards penholder (1) head, and is provided with an end and the contacted conductive sleeve of battery (3) negative pole (5) in battery (3) outer race, and mutually insulated is isolated between this conductive sleeve (5) and the penholder (1);

Afterbody at penholder (1) also is provided with second light emitting diode (12), and the positive pole of this second light emitting diode (12) is electrically connected with metal penholder (1), and negative pole is electrically connected with the afterbody negative pole or the conductive sleeve (5) of column type battery (3);

Between the positive pole of column type battery (3) and first light emitting diode (11), be provided with boost module (4) and power spring (8) in turn; Boost module (4) has first negative contact terminal (41) on the first surface away from column type battery (3), and contacts with second end (82) of power spring (8); Boost module (4) has input positive contact (43) and second negative contact terminal (42) on the second surface of contiguous column type battery (3), and is electrically connected with the positive pole and the described conductive sleeve (5) of column type battery (3) respectively; The output cathode contact (44) of boost module (4) then is electrically connected with metal penholder (1); And described first negative contact terminal (41) is electrically connected in boost module (4) inside with second negative contact terminal (42);

The positive pole of described first light emitting diode (11) is electrically connected with metal penholder (1), and negative pole is electrically connected with first end (81) of power spring (8).

2, LED light pen according to claim 1, it is characterized in that on the second surface of the contiguous column type battery of described boost module (4) (3), the input positive contact (43) of boost module (4) is arranged on central part, and with the positive pole of column type battery (3) between directly contact or by a power spring (6) mediate contact, second negative contact terminal (42) of boost module (4) is arranged on the peripheral position of second surface, and contacts with described conductive sleeve (5).

3, LED light pen according to claim 1, it is characterized in that the light emitting diode group of described first light emitting diode (11) for constituting by at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate (11a) of difference solid welding at a printed circuit board (PCB), on the negative plate (11b), the positive plate of this printed circuit board (PCB) (11a) extends to periphery and contacts with metal penholder (1), the negative plate of printed circuit board (PCB) (1b1) then extend to its with first end (81) facing surfaces of power spring (8) on and contact with first end (81) of power spring (8).

4, LED light pen according to claim 1, it is characterized in that the light emitting diode group of described second light emitting diode (12) for constituting by at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate (12a) of difference solid welding at a printed circuit board (PCB), on the negative plate (12b), the positive plate of this printed circuit board (PCB) (12a) extends to periphery and contacts with metal penholder (1), the negative plate of printed circuit board (PCB) (12b) then extend to its with column type battery (3) negative pole facing surfaces on and contact with the negative pole or the conductive sleeve (5) of column type battery (3).

5,, it is characterized in that described boost module (4) also has a switch (45), and the operating portion of this switch (45) passes the hole of the corresponding portion of penholder (1) and exposes according to the described LED light pen of the arbitrary claim of claim 1 to 4.

6, a kind of LED light pen, include metal penholder (1) and be arranged on the pen core (2) in the penholder (1), first light emitting diode (11) that is positioned at the column type battery (3) of penholder (1) and the boost module (4) of booster circuit is housed and is arranged on pen head (1) portion, it is characterized in that:

Described column type battery (3) is with the direction setting of its head positive pole towards penholder (1) afterbody, and is provided with an end and the contacted conductive sleeve of battery (3) negative pole (5) in battery (3) outer race, and mutually insulated is isolated between this conductive sleeve (5) and the penholder (1);

Afterbody at penholder (1) also is provided with second light emitting diode (12), and described boost module (4) promptly is arranged between this second light emitting diode (12) and the column type battery (3); Boost module (4) has first negative contact terminal (41) on the first surface away from column type battery (3), and is connected with the negative electricity of second light emitting diode (12); Boost module (4) has input positive contact (43) and second negative contact terminal (42) on the second surface of contiguous column type battery (3), and is electrically connected with the positive pole and the described conductive sleeve (5) of column type battery (3) respectively; The output cathode contact (44) of boost module (4) then is electrically connected with metal penholder (1), and the positive pole of second light emitting diode (12) also is electrically connected with metal penholder (1); And described first negative contact terminal (41) is electrically connected in boost module (4) inside with second negative contact terminal (42);

Between first light emitting diode (11) and column type battery (3), then be provided with a power spring (8), first end (81) of this power spring (8) is connected with the negative electricity of first light emitting diode (11), and second end (82) of power spring (8) is electrically connected with the afterbody negative pole of column type battery (3) or conductive sleeve (5).

7, LED light pen according to claim 6, it is characterized in that on the second surface of the contiguous column type battery of described boost module (4) (3), the input positive contact (43) of boost module (4) is arranged on central part, and with the positive pole of column type battery (3) between directly contact or by a power spring (6) mediate contact, second negative contact terminal (42) of boost module (4) is arranged on peripheral position, and contacts with described conductive sleeve (5).

8, LED light pen according to claim 6, it is characterized in that the light emitting diode group of described first light emitting diode (11) for constituting by at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate (11a) of difference solid welding at a printed circuit board (PCB), on the negative plate (11b), the positive plate of this printed circuit board (PCB) (1a1) extends to periphery and contacts with metal penholder (1), the negative plate of printed circuit board (PCB) (11b) then extend to its with first end (81) facing surfaces of power spring (8) on and contact with first end (81) of power spring (8).

9, LED light pen according to claim 6, it is characterized in that the light emitting diode group of described second light emitting diode (12) for constituting by at least one sub-light emitting diode, the positive pole of each sub-light emitting diode, negative pole is by the positive plate (12a) of difference solid welding at printed circuit board (PCB), on the negative plate (12b), the positive plate of this printed circuit board (PCB) (12a) extends to periphery and contacts with metal penholder (1), the negative plate of printed circuit board (PCB) (12b) then extend to its with boost module (4) facing surfaces on and contact with first negative contact terminal (41) of boost module (4).

10,, it is characterized in that described boost module (4) also has a switch (45), and the operating portion of this switch (45) passes the hole of the corresponding portion of penholder (1) and exposes according to the described LED light pen of the arbitrary claim of claim 6 to 9.