For example in orienteering, when orienteering is done in darkness, forehead-lamps consisting of an incandescent illuminator and a power source attached to a forehead band are used. The forehead-lamp has a good illuminat- ing efficiency, and its placement on the forehead band allows the person to move freely in the terrain and read the map without the person having to carry any hand-held illuminator in his/her hands.

The biggest drawback of present forehead-lamps is the large size of the incandescent illuminators and the high power consumption of the incan- descent lamp. This also requires a large power source. In addition, due to the large size of the incandescent illuminators, present forehead-lamps are rela- tively ugly in appearance.

For example, specification US-B2-6,659, 618 discloses an illumina- tor attached to a cap and using a light source consisting of a number of sepa- rate LEDs placed side by side. The LED has a very low power consumption and also a very small size, so it can be used to form illuminators of a relatively small size.

A drawback with the solution disclosed in the aforesaid US specifi- cation is that it is difficult to fit the illuminator inside the visor of the cap, and, as it consists of several separate LED units, it also requires a relatively large space.

The object of the present invention is to overcome the drawbacks of prior art and to create a compact LED illuminator module for a headgear or equivalent that can be easily fixed and allows the illuminator to be very effec- tively precision-aimed at a desired target.

The details of the features of the solution of the invention are pre- sented in the attached claims.

By using the invention, it is possible to produce precision-directed LED illuminator modules integrated with a headgear, which are applicable for personal use e. g. in caps, surgeon's headgear, helmets, such as protective helmets, and in diving masks.

It is also possible to use different and differently colored light mod- ules, which work together or separately. They may be fixed or movable. They are precision positioned/precision directed in a given direction. The aim is to illuminate the target and to make both hands free for only the intended action, such as e. g. a LED illuminator attached to a cap according to the personal"Led It See"illuminator system as illustrated in Fig. 1. It can also be attached to a helmet or diving mask etc.

In the following, the invention will be described in detail with refer- ence to an example and the attached drawing, wherein Fig. 1 presents a LED illuminator attached to a cap or equivalent, and Fig. 2 and 3 present another LED illuminator according to the in- vention in an opened position as seen from above and from below.

Fig. 1 presents a LED illuminator module according to the inven- tion, designed to be attached to a headgear and comprising a frame 1,2, a rec- angular LED unit 3, which for example in Fig. 1 consists of six LEDs 4 placed side by side, and an electronics part 5, which is provided with a switch 6 for switching the illuminator on/off. A battery or the like for the supply of electric power to the illuminator can be mounted separately and is not shown in Fig. 1.

The frame 1,2 consists of two curved visor-shaped frame parts 1,2 placed one over the other, which can be folded against each other so that the visor remains between them, and they can be fastened to the visor and to each other by means of push-on snap-on fasteners 7, so the illuminator can be easily attached to the visor and detached from it when necessary. The visor can then be additionally coated e. g. with fabric. The electronics part 5 is connected to the back part of the frame part 1,2, so it will not be a hindrance to the aiming of the LEDs.

In a corresponding manner, it is possible to implement a LED illu- minator (figures 2-3) designed to be attached to the visor of a helmet and comprising a LED unit 13 with LEDs and rectangular frame parts 11,12, which can be folded together in a corresponding manner and fastened by means of snap-on fasteners. The frame part can be provided with an opening 18 for the electronics part and with holes 19 for the fasteners.

The LED control electronics consist of a resistor controlling each LED, a switch and a direct-current source. The luminous efficiency of the illumi- nator can be varied by varying the number and luminous efficiency of the paral- lel LEDs.

It is obvious to the person skilled in the art that different embodi- ments of the invention are not limited to the example described above, but that they may be varied within the scope of the claims presented below. It may also be a water-tight (IP class 55 and upwards) encapsulated LED unit designed to be attached to protective helmets (motor vehicle drivers'helmets, miners'hel- mets, professional divers'helmets). The module can also be provided with UV LEDs for use by authorities (for determining the authenticity of personal docu- ments etc. on a road, in situ). Likewise, IR LEDs can be used for special func- tions. The structure of the precision-directed LED unit is the same in all applica- tions. Vertical as well as azimuth alignment is done manually.