JP3101074U - Portable illumination device with adjustable irradiation distance - Google Patents

Abstract

Provided is a portable lighting device that is suitable for portable use and long-time use, and that can adjust the irradiation distance of a lighting fixture.
An illuminating device main body is provided with a light drive device, a switch, and a light emitting element including several light emitting diodes, and at least one of the several light emitting diodes has a flat transparent front end. An optical lens 16 is provided, and a condenser lens 15 is provided at the front end of the other light emitting diodes so that the light emitting diode at the rear end of the condenser lens 15 can irradiate a relatively long distance through the condenser lens 15. By switching these, different irradiation distances can be selected or irradiation can be performed simultaneously.
[Selection diagram] Fig. 1

Description

  The present invention relates to a portable lighting device in which the irradiation distance can be adjusted. In particular, in a portable lamp or a flashlight type lighting device using a light emitting diode as an illumination light source, a flat translucent lens or a condenser lens is provided. Accordingly, the present invention relates to a portable lighting device that is convenient to carry and has excellent perspective and near-side illumination effects and its adjustment.

  Conventional portable lighting devices include lamps and flashlights. Its main purpose of use is nighttime construction and camping. In general, light bulbs are used as light sources.

However, a light source that relies on the above-mentioned known light bulbs has a drawback in that the power is greatly consumed and cannot be used for a long time. When used for a long time, a large amount of spare batteries must be prepared, which is inconvenient to carry.
By the way, portable lamps and flashlights that have been further miniaturized are now being devised to solve these drawbacks. In line with the trend, the size of the light-emitting element inside must also be reduced, and the illuminance becomes relatively weak, and irradiation at short distances, such as searching for things in a drawer or searching for things in a bag. A new drawback arises in that it is only adapted for purpose.
Furthermore, these known portable lighting devices only function at a fixed irradiation distance, and it is impossible to adjust the irradiation distance depending on the time and the case, which is not practical.
In view of the above-mentioned drawbacks, the present invention provides a portable lighting device capable of adjusting the irradiation distance of the lighting device, which is suitable for portable use and long-time use and can adjust the irradiation distance of the lighting equipment.

A light-emitting drive device, a switch, and a light-emitting element composed of several light-emitting diodes are mainly provided in the lighting device body, and a flat light-transmitting lens such as a Fresnel lens is provided at the front end of at least one of the several light-emitting diodes. A different focusing distance is selected by providing a condenser lens at the front end of the other light emitting diode and allowing the light emitting diode at the rear end of the condenser lens to irradiate relatively far through the condenser lens. Or simultaneously.

  According to the present invention, there is provided an operation in which short-distance irradiation and long-distance irradiation are selected to perform irradiation, or these irradiations are simultaneously performed, and the light-emitting element constituted by the light-emitting diode has high illuminance and is consumed. Since less power is required, it is suitable for lighting for a long time, and the object of using a portable lighting device suitable for night work or camping has been achieved.

As shown in FIG. 1, the portable certification device of the present invention capable of adjusting the irradiation distance includes a main body 10, and a hollow outer cover 11 is provided on one side thereof. Each is provided with a light drive device 20 for driving a light emitting element 12 composed of several light emitting diodes (LEDs). The outer cover 11 faces the light emitting direction of the light emitting element 12 and is constituted by a flat light transmitting lens 16 having a light transmitting property.
The first light collecting cover 13 is provided outside at least one light emitting element 12 in the outer cover 11, and the second light collecting cover 14 is provided outside the other light emitting elements 12 in the outer cover 11. Shall be.
The condensing lens 15 is provided at the extreme end of the second condensing cover 14, and provides a converging action to a light beam emitted from the light emitting element 12 inside the second condensing cover 14.
The light driver 20 is provided on the main body 10, controls the light emitting action of the light emitting element 12, and is powered by a battery (not shown) in the main body 10.
The switch 21 is provided on the main body 10 and controls on / off of the optical drive device 20.

With the above-described structure, when the switch 21 is operated to cause each of the light emitting elements 12 to emit light by the light driving device 20, the light emitting element 12 located in the first light collecting cover 13 is provided at the front end. Through the flat light transmitting lens 16, a desired illuminance and irradiation distance, that is, a short-distance irradiation area 30 in this embodiment is obtained.
The light-emitting element 12 in the second light-collecting cover 14 is moved farther by the light-collecting action of the light-collecting lens 15 whose light source has a light-transmitting convex lens shape. Irradiating a relatively long distance, that is, a long-distance irradiation area 40 in this embodiment is obtained.

  As described above, by a simple operation of the optical drive device 20 and the switch 21, it is possible to arbitrarily select the short-distance irradiation and the long-distance irradiation and irradiate them, or to irradiate them at the same time. In the light drive device 20 for controlling the lighting function, the switch 21 may be a general electronic component capable of providing the same effect as described above.

  As shown in FIGS. 2 and 3, the present invention brings the light emitting element 12 in the first light collecting cover 13 closer to the position of the flat light transmitting lens 16 at the front end thereof, and further emits light in the second light collecting cover 14. The element 12 is installed at a position slightly distant from the front light transmitting lens 16 at the front end, and a light-collecting lens 15 having a light-transmitting convex lens shape is further provided at the front end of the light-emitting element 12. Due to the light effect, the light-emitting element 12 in the second light-collecting cover 14 becomes a light beam that can be irradiated farther than the light-emitting element 12 in the first light-collecting cover 13, and is irradiated to a relatively long distance, that is, The long-distance irradiation area 40 in the present embodiment is obtained, and the same effects as those in the first embodiment are obtained.

As shown in FIGS. 4 and 6, a movable cover 17 may be further provided outside the outer cover 11, and the movable cover 17 is installed on the outer cover 11 so that the movable cover 17 can move vertically many times. It is assumed that
The position of the movable cover 17 facing the first light-collecting cover 13 is a light-transmitting lens having a planar shape, and the position corresponding to the second light-collecting cover 14 is a light-transmitting convex lens. The light-collecting lens 15 is provided, and each light-emitting element 12 in the first light-collecting cover 13 and the second light-collecting cover 14 provides an illumination effect of irradiating light beams at different perspective distances.
Further, the movable cover 17 has a function of reciprocating in the outer cover 11 and vertically moving, so that an effect of adjusting the focal length of each light emitting element 12 is provided. Alternatively, as shown in FIGS. 4 and 5, the movable cover 17 faces each other so that the outer cover 11 and the movable cover 17 are screwed together. Thus, when the movable cover 17 is rotated, the movable cover 17 can reciprocate and move on the outer cover 11, and the effect of adjusting the focal length of each light emitting element 12 is achieved. It is done.

FIG. 3 is a structural explanatory view of the first embodiment of the present invention. FIG. 4 is a structural explanatory view of a second embodiment of the present invention. FIG. 3 is a side view for explaining the structure in FIG. 2. FIG. 4 is a structural explanatory view of a third embodiment of the present invention. FIG. 5 is an overhead view in FIG. 4. FIG. 5 is a diagram illustrating an example of an operation change in FIG. 4.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 10 Main body 11 Outer cover 12 Light emitting element 13 First light collecting cover 14 Second light collecting cover 15 Light collecting lens 16 Flat light transmitting lens 17 Movable cover 20 Light drive device 21 Switch 30 Short distance irradiation area 40 Long distance irradiation area

Claims (4)

The main body, the first light-collecting cover, the second light-emitting cover, a light-collecting lens, and an optical driving device, in a portable light-emitting device including:
The main body is provided with a light emitting element composed of several light emitting diodes driven by an optical driving device inside a hollow interior, and an outer cover having a flat light transmitting lens facing the light emitting direction of the light emitting element is provided on one side. Become
The first light-collecting cover is provided outside one light-emitting element in the outer cover, and the second light-collecting cover is provided outside the other light-emitting elements in the outer cover. The condensing lens is a translucent convex lens, and is provided at an end of the second condensing cover and is configured to condense a light beam emitted by a light emitting element inside the second condensing cover,
The light driving device is provided on the main body, controls the light emitting operation of each of the light emitting elements, and is configured to be powered by a battery in the main body. Adjustable portable lighting device.   2. The illumination distance of claim 1, wherein the light-emitting element in the first light-collecting cover is further closer to the planar light-transmitting lens than the light-emitting element in the second light-emitting cover. Adjustable portable lighting device. A movable cover is provided outside the outer cover,
The movable cover has a planar light-transmitting lens whose position facing the first condenser lens is provided to provide an operation of adjusting the focal length by reciprocating vertically in the outer cover. 2. The portable lighting device according to claim 1, wherein a position corresponding to the second light-collecting cover position is a light-convex convex lens-shaped light collecting lens. The portable lighting device according to claim 1, wherein the switch is made of an electronic component.

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