Portable flashlight

Abstract

To provide a portable light that can easily switch between light irradiation and diffusion modes with a single light emitting part and can obtain sufficient diffusion in the diffusion mode. [Solution] The portable light bulb 100 comprises a case main body 110, a semi-transparent part 120 connected to an end side 111 of the case main body 110 and formed into a cylindrical shape from a translucent material, a light-emitting part 130 disposed inside the semi-transparent part 120 and in the case main body 110, a power switch part 140 for switching the light-emitting part 130 on and off, and a semi-transparent lid part 170 formed from a translucent material and detachable from the end part 121 of the semi-transparent part 120 on the opposite side from the case main body 110.

Description

[Technical Field]

[0001] The present invention relates to a portable light fixture having a case body and a light emitting part. [Background technology]

[0002] BACKGROUND ART Conventionally, a simple lantern has been known that includes a portable light and a transparent bottle to which the portable light is attached (for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2002-83501 Summary of the Invention [Problem to be solved by the invention]

[0004] However, while the conventional simple lanterns described above could be used in two ways, as both a light and a lantern, when used as a lantern, the transparent bottle did not diffuse the light very well, and even when decorative film was added to the outside of the transparent bottle or liquid was placed inside the bottle, the diffusion was not sufficient.

[0005] Therefore, the present invention solves the problems of the prior art as described above. That is, the purpose of the present invention is to provide a portable light that can easily switch between light irradiation and diffusion modes with a single light-emitting element, and can obtain sufficient diffusion in the diffusion mode. [Means for solving the problem]

[0006] The device of claim 1 solves the above-mentioned problem by providing a portable light bulb comprising a case body, a semi-transparent section connected to an end of the case body and formed into a cylindrical shape from a translucent material, a light-emitting section disposed inside the semi-transparent section and in the case body, a power switch section for freely switching the light-emitting section on and off, and a semi-transparent lid section made of a translucent material and detachable from the end of the semi-transparent section opposite the case body.

[0007] The device of claim 2 further solves the above-mentioned problem by, in addition to the configuration of the portable light described in claim 1, forming the semi-transparent part in a tapered shape in which the inside gradually becomes wider from the base side, which is the case main body side, to the end part side, which is the tip side.

[0008] The device of claim 3 further solves the above-mentioned problem by further comprising an infrared sensor unit and a sensor switch unit that can freely switch the infrared sensor unit on and off in addition to the configuration of the portable light described in claim 1 or claim 2.

[0009] The device of claim 4 further solves the above-mentioned problem by arranging the infrared sensor unit on the outer periphery of the case main body or the outer periphery of the semi-transparent part in addition to the configuration of the portable light described in claim 3. [Effects of the Invention]

[0010] The portable light of the present invention is equipped with a light-emitting part, which not only allows it to emit light but also provides the following unique effects.

[0011] According to the portable lamp of the invention of claim 1, when the semi-transparent cover is removed from the end portion of the semi-transparent part, the light emitted from the light-emitting part when the power is turned on is mainly emitted outward from the end portion of the semi-transparent part and is also diffused to the surroundings via the semi-transparent part. On the other hand, when the semi-transparent cover is attached to the end portion of the semi-transparent part and the power is turned on, the light emitted from the light-emitting part is repeatedly reflected within the space formed by the semi-transparent cover and the semi-transparent part, and is diffused to the surroundings via the semi-transparent cover and the semi-transparent part. Therefore, the light irradiation / diffusion mode can be easily switched with a single light-emitting part by simply attaching or detaching the semi-transparent cover. For example, when the semi-translucent cover is removed and the power is turned on, the light from the light-emitting unit is emitted without being blocked by the semi-translucent cover, allowing the user to direct the light at the desired location and use it as a flashlight. Furthermore, when the portable light bulb is placed facing downwards with the semi-transparent cover attached or removed so that the edge of the semi-transparent part touches a desk or floor, the light from the light-emitting part is reflected inside the semi-transparent part, making it bright enough to emit light and diffusing the light around, so that the user can use it as a stationary electric lantern. Furthermore, when the portable light bulb is carried with the semi-translucent lid attached and facing downwards, the light from the light-emitting part is reflected on the inside of the semi-translucent part, making the semi-translucent part and the semi-translucent lid part glow and brighten, and the light is diffused to the sides and below, illuminating the feet and surrounding areas, allowing the user to use it as a portable electric lantern. In other words, by using a semi-transparent portion and a semi-transparent lid portion, the light from the light-emitting portion is reflected on the inside of the semi-transparent portion, making the semi-transparent portion and the semi-transparent lid portion appear to emit light, and the light is diffused around the sides and downward, thereby improving the diffusion of light in lantern mode and achieving sufficient diffusion, compared to conventional simple lanterns that use transparent materials. Furthermore, by using a single light emitting unit, the structure becomes simpler than when multiple light emitting units are provided, and the durability of the portable light can be improved. In other words, simply by attaching or detaching the semi-transparent lid, the single light-emitting unit can easily switch between the illumination and diffusion modes, and by switching between illumination and diffusion modes, the light diffusion can be sharpened, and sufficient diffusion can be obtained in diffusion mode.

[0012] According to the portable light of the invention of claim 2, in addition to the effect of the invention of claim 1, when the power is turned on, the light is actively diffused to a moderate degree toward the main body of the case, so that when the portable light is placed facing downward, it can moderately illuminate the faces of people around you or illuminate objects at face height.

[0013] According to the portable light of the invention of claim 3, in addition to the effects of the invention of claim 1 or claim 2, when the sensor switch unit is turned on, the light-emitting unit does not emit light when no person is detected, but emits light when a person is detected.Therefore, the user can place the portable light facing downwards in a hallway or entrance, or hang it on a handrail or doorknob, and use it as a sensor light or an eco-mode night light. In other words, by simply attaching or detaching the semi-transparent lid, the single light-emitting unit can easily switch between light irradiation and diffusion modes, and one device can be used in three ways: as a flashlight, electric lantern, and sensor light.

[0014] According to the portable light of the invention of claim 4, in addition to the effect of the invention of claim 3, by installing the infrared sensor unit facing the side of the portable light where people approach, the detection sensitivity of approaching people is increased, so that it can be used as a sensor light with directional sensitivity or a night light in eco mode. [Brief explanation of the drawings]

[0015] [Figure 1] 1A and 1B are perspective views showing a portable light bulb according to an embodiment of the present invention with a semi-transparent cover attached and with the semi-transparent cover removed, respectively; [Figure 2]1A and 1B are a plan view and a front view showing a portable light bulb according to an embodiment of the present invention with a semi-transparent cover removed. [Figure 3] 1A and 1B are side and rear views showing a portable light bulb according to an embodiment of the present invention with the semi-transparent cover removed. [Figure 4] 1A and 1B are diagrams showing how light is emitted from a portable light bulb according to an embodiment of the present invention when the semi-translucent cover is removed, and how light is diffused when the semi-translucent cover is attached. [Figure 5] 1A and 1B are perspective views showing the inside of a battery storage cap of a portable light bulb according to an embodiment of the present invention, and enlarged perspective views of the main part showing an engaging portion of the case body that engages with the battery storage cap. [Figure 6] 10A to 10D are partial perspective explanatory views showing how the battery storage cap of the portable light bulb according to the embodiment of the present invention is engaged with the engaging portion of the case body. DETAILED DESCRIPTION OF THE INVENTION

[0016] The portable light bulb of the present invention comprises a case body, a semi-transparent section connected to the end of the case body and formed into a cylindrical shape from a translucent material, a light-emitting section disposed inside the semi-transparent section and in the case body, a power switch for switching the light-emitting section on and off, and a semi-transparent cover made of a translucent material and detachable from the end of the semi-transparent section opposite the case body. This allows the user to easily switch between light irradiation and diffusion modes with a single light-emitting section by simply attaching and detaching the semi-transparent cover, and the user can remove the semi-transparent cover to direct the light to the desired location. The specific embodiment may be any one as long as it can be used as a flashlight by placing the portable light bulb facing downwards, can be used as a stationary electric lantern by placing the portable light bulb facing downwards with the semi-translucent cover attached, can be used as a portable, mobile electric lantern by placing the portable light bulb facing downwards with the semi-translucent cover attached, can easily switch between the illumination and diffusion modes with a single light-emitting unit by simply attaching or detaching the semi-translucent cover, can provide a clear distinction between the diffusion of light by switching between the illumination and diffusion modes, and can obtain sufficient diffusion in the diffusion mode.

[0017] For example, the shape of the case main body may be elongated in the front-to-back light-emitting direction of the light-emitting part, or may be elongated in the width direction (horizontal direction) relative to the front-to-back light-emitting direction. Furthermore, the position of the infrared sensor part, which is a subordinate concept, may be on either the case main body part or the semi-transparent part, as long as it is a position that can detect when a person approaches within a predetermined range. Furthermore, the power switch and the sensor switch, which are a subordinate concept, may be located on either the case body or the semi-transparent part, as long as they are in a position that allows the user to freely operate them. Furthermore, the semi-transparent portion and semi-transparent lid portion may be formed by adding a small amount of opaque pigment or the like to a translucent material, allowing light to pass through in the range of 1% to less than 100%, or may be formed from a translucent material and processed using a so-called sandblasting process or the like, allowing light to pass through in the range of 1% to less than 100%. In other words, the light transmittance of the semi-transparent portion and the semi-transparent lid portion is not limited to 50%. Furthermore, the term "cylindrical" for the semi-transparent portion refers to a structure or shape that is hollow inside, and as long as the inside is hollow, the cross-sectional shape is not limited to a circle, but may be any shape such as an ellipse, triangle, or polygon. [Example]

[0018] A portable light 100 according to an embodiment of the present invention will be described below with reference to FIGS. 1(A) to 4(B). 1(A) is a perspective view showing a portable light 100 according to an embodiment of the present invention with a semi-transparent cover 170 attached, FIG. 1(B) is a perspective view showing a portable light 100 according to an embodiment of the present invention with the semi-transparent cover 170 removed, FIG. 2(A) is a plan view showing a portable light 100 according to an embodiment of the present invention with the semi-transparent cover 170 removed as seen from the direction indicated by reference numeral 2A in FIG. 1(B), and FIG. 1(B) is a front view of the portable light 100 according to the embodiment of the present invention, as viewed from the reference numeral 2B in FIG. 1(B), showing a state in which the semi-translucent cover 170 is removed; FIG. 3(A) is a side view of the portable light 100 according to the embodiment of the present invention, as viewed from the reference numeral 3A in FIG. 1(B), showing a state in which the semi-translucent cover 170 is removed; and FIG. 3(B) is a side view of the portable light 100 according to the embodiment of the present invention, as viewed from the reference numeral 3B in FIG. 1(B). 4(A) is a diagram showing how light is emitted when the semi-translucent cover portion 170 of the portable light bulb 100, which is an embodiment of the present invention, is removed; FIG. 4(B) is a diagram showing how light is diffused when the semi-translucent cover portion 170 of the portable light bulb 100, which is an embodiment of the present invention, is attached; FIG. 5(A) is an oblique view showing the inside of the battery storage cap 112 of the portable light bulb 100, which is an embodiment of the present invention; FIG. 5(B) is an enlarged oblique view of the main part showing the engagement portion 115 that engages with the battery storage cap 112 of the case main body portion 110 of the portable light bulb 100, which is an embodiment of the present invention; and FIGS. 6(A) to (D) are partial perspective explanatory views of how the battery storage cap 112 of the portable light bulb 100, which is an embodiment of the present invention, engages with the engagement portion 115 of the case main body portion 110. In Figures 6(A) to (D), most of the battery storage cap 112 is shown in phantom lines, and the protrusion portion 114 on the inside of the battery storage cap 112 is shown in solid lines to clearly show the engagement between the protrusion portion 114 and the engagement portion 115.

[0019] As shown in Figures 1(A) to 3(B), a portable light bulb 100 according to an embodiment of the present invention includes a case body 110, a semi-transparent part 120, a light-emitting part 130, a power switch part 140, an infrared sensor part 150 as an example, a sensor switch part 160 as an example, and a semi-transparent cover part 170. Of these, the case main body 110 is formed to be elongated in the front-to-rear light emission direction of the light emitting unit 130, for example. It should be noted that, as an example, a battery is housed inside case main body 110 via battery housing cap 112, but the location where the battery is housed is not limited to inside case main body 110. In other words, the battery may be stored inside the semi-transparent portion 120 .

[0020] The semi-transparent portion 120 is connected to the end side 111 of the case body 110 and is formed into a cylindrical shape using a translucent material. Here, the term "cylindrical" for the semi-transparent portion 120 refers to a structure or shape that is hollow inside, and the cross-sectional shape is not limited to a circle as long as the inside is hollow, but may be any shape such as an ellipse, triangle, or polygon. The semi-transparent portion 120 is provided in a cylindrical shape extending in the front-rear direction of the light emission direction.

[0021] Furthermore, the light emitting section 130 is disposed inside the semi-transparent section 120 and in the case main body 110 when viewed from the front side in the light emitting direction. As an example, the light emitting section 130 is provided at one end 111 in the longitudinal direction of the case body 110, which is close to the semi-transparent section 120, but may be provided at the center or the other end in the longitudinal direction. The light emitting unit 130 is configured by, for example, a light emitting diode (LED) or a light bulb.

[0022] The power switch unit 140 is provided so as to be able to switch the light emitting unit 130 between ON and OFF. Furthermore, the semi-transparent lid portion 170 is detachably attached to the end portion 121 of the semi-transparent portion 120 on the opposite side to the case body portion 110, and is made of a translucent material.

[0023] As a result, as shown in Figure 4(A), when the semi-transparent lid portion 170 is removed from the end portion 121 of the semi-transparent portion 120, the light emitted by the light-emitting portion 130 when the power is turned on is mainly radiated outward from the end portion 121 of the semi-transparent portion 120 and is also secondarily diffused to the surroundings via the semi-transparent portion 120. On the other hand, as shown in Figure 4(B), when the semi-transparent lid portion 170 is attached to the end portion 121 of the semi-transparent portion 120 and the power is turned on, the light emitted by the light-emitting portion 130 is repeatedly reflected within the space formed by the semi-transparent lid portion 170 and the semi-transparent portion 120, and is diffused to the surroundings via the semi-transparent lid portion 170 and the semi-transparent portion 120. As a result, the light irradiation / diffusion mode of the single light emitting unit 130 can be easily switched by simply attaching and detaching the semi-transparent cover unit 170 . For example, when the semi-transparent cover 170 is removed and the power is turned on, the light from the light emitting unit 130 is emitted without being blocked by the semi-transparent cover 170 . As a result, the user can direct the light to a desired location and use it as a flashlight.

[0024] Furthermore, when the portable light bulb 100 is placed facing downwards with the semi-transparent cover 170 attached or removed so that the end portion 121 of the semi-transparent part 120 is in contact with a desk or floor, the light from the light-emitting part 130 is reflected inside the semi-transparent part 120, making the semi-transparent part 120 bright enough to emit light and diffusing the light to the surroundings. As a result, the user can use it as a stationary electric lantern.

[0025] Furthermore, when the portable light bulb 100 is carried with the semi-transparent lid portion 170 attached and facing downward, the light from the light-emitting portion 130 is reflected on the inside of the semi-transparent portion 120, causing the semi-transparent portion 120 and the semi-transparent lid portion 170 to emit light and become bright, and the light is diffused around the sides and downward, illuminating the feet and the surrounding area. As a result, the user can use it as a portable electric lantern.

[0026] In other words, by using the semi-transparent portion 120 and the semi-transparent lid portion 170, the light from the light-emitting portion 130 is reflected on the inside of the semi-transparent portion 120, making the semi-transparent portion 120 and the semi-transparent lid portion 170 brighter and emitting light, and the light is diffused around the sides and downwards, compared to conventional simple lanterns that use transparent materials. As a result, the light diffusion in the lantern mode can be improved, and sufficient light diffusion can be obtained. Furthermore, by using a single light emitting unit 130, the structure becomes simpler than when multiple light emitting units are provided. As a result, the durability of the portable light 100 can be improved. In other words, the single light-emitting unit 130 can easily switch between the illumination and diffusion modes by simply attaching and detaching the semi-transparent lid 170, and by switching between the illumination and diffusion modes, the light diffusion can be made more pronounced, and sufficient diffusion can be obtained in the diffusion mode.

[0027] Furthermore, in this embodiment, the portable light 100 further comprises an infrared sensor section 150 and a sensor switch section 160 that can switch the infrared sensor section 150 between ON and OFF. Here, the infrared sensor unit 150 is disposed on the outer periphery of the case main body 110, for example. The sensor switch section 160 can switch the infrared sensor section 150 between ON and OFF, and is disposed on the outer periphery of the case main body section 110, for example. As a result, when the sensor switch section 160 is turned on, the light emitting section 130 does not emit light when no person is detected, and emits light when a person is detected. As a result, the user can place the portable light 100 facing downwards in a hallway or entrance, or hang it from a handrail or doorknob, and use it as a sensor light or a night light in eco mode.

[0028] In other words, by simply attaching or detaching the semi-transparent lid portion 170, the single light-emitting portion 130 can easily switch between light irradiation and diffusion modes, and one device can be used in three ways: as a flashlight, an electric lantern, and a sensor light. The case main body 110 has, for example, a battery storage cap 112. As shown in FIG. 3(B), the battery storage cap 112 is provided with a string threading bar 113. A string can be threaded through the string threading bar 113 to form a loop, which can then be used to hang the portable light 100 facing downwards on a hook, handrail, or doorknob.

[0029] As shown in Figure 3(B), the string threading bar 113 of the battery storage cap 112 is oriented such that one end of the string threading bar 113 faces the infrared sensor unit 150 of the case main body 110. As a result, when the portable light bulb 100 is placed facing downwards, the string threaded through the string threading bar 113 is likely to hang down in a direction perpendicular to the direction in which the string threading bar 113 extends. As a result, the risk that the string threaded through the string threading bar 113 will cover the infrared sensor unit 150 of the case main body 110, causing it to not respond to people, or the risk that it will cover the infrared sensor unit and respond to the string, is reduced, allowing the infrared sensor unit 150 to respond properly to people.

[0030] Furthermore, in this embodiment, the semi-transparent portion 120 is formed in a tapered shape that gradually widens from the base side, which is the case main body 110 side, toward the end portion 121, which is the tip side. As a result, when the power is turned on, light is actively and appropriately diffused toward the case main body 110 side. As a result, when the portable light 100 is placed facing downward, it can adequately illuminate the faces of people around it or illuminate an object at the height of a person's face.

[0031] In this embodiment, the infrared sensor section 150 is disposed on the outer periphery of the case body section 110 or on the outer periphery of the case body section 110 , which is an example of the outer periphery of the semi-transparent section 120 . Thus, by installing the infrared sensor unit 150 facing the side of the portable light 100 where people approach, the sensitivity of detecting approaching people is increased. As a result, the light can be used as a sensor light with directional sensitivity or as a night light in eco mode.

[0032] As an example, the semi-transparent lid portion 170 may be provided with a flange portion with a hole. To prevent the semi-transparent lid portion 170 from being lost, for example, a string may be threaded through the hole in the flange portion with the hole and connected to the string threading bar 113 of the battery storage cap 112. Furthermore, since the device has a flange with a hole, it is less likely to roll when placed sideways on a desk or the like with the semi-transparent lid 170 attached. As a result, the portable light 100 can be prevented from rolling over and falling off a desk or the like, and damage caused by the fall can also be prevented.

[0033] The semi-transparent portion 120 and the semi-transparent lid portion 170 may have a so-called grained surface formed by transferring a fine uneven pattern onto at least one of the inner and outer surfaces. As a result, the light from the light emitting section 130 is diffusely reflected by the semi-transparent lid section 170 and the semi-transparent section 120 . As a result, the light from the light emitting unit 130 can be further diffused in the lantern mode. Furthermore, the semi-transparent portion 120 and the semi-transparent lid portion 170 may be subjected to a so-called half mirror process on the inner surfaces, which allows some light to pass through and reflects some light. This allows the light from the light-emitting unit 130 to be more reflected within the space formed by the semi-transparent lid unit 170 and the semi-transparent unit 120 . As a result, the light from the light emitting unit 130 can be further diffused in the lantern mode.

[0034] Furthermore, as shown in Figures 1 to 2(A), 3(A) and 4(A), the power switch unit 140 is positioned in the middle part of the portable light 100 so that it is easy for the user to reach with their thumb when holding the case main body 110 when carrying the portable light 100. As shown in FIGS. 1 and 4(B), the semi-transparent lid portion 170 is formed in a trapezoidal shape when viewed from the side, and is made of a soft (flexible, elastic) silicone material. When the semi-transparent lid portion 170 is attached, the semi-transparent lid portion 170 is configured to be attached so as to fit over the end portion 121 of the semi-transparent portion 120 so as to completely cover it.

[0035] As shown in FIG. 5(A), the battery storage cap 112 has a protruding portion 114 on the inside of the cap. The protruding portion 114 extends in the circumferential direction of the cap. Furthermore, two protruding portions 114 are provided in the circumferential direction. Also, as shown in Figures 5(B) to 6(D), the engagement portion 115 of the case main body 110 that engages with the battery storage cap 112 is provided with a first guide portion 115a, a second guide portion 115b, a third guide portion 115c, and a recessed groove portion 115d. Furthermore, two sets of the first guide portion 115a, the second guide portion 115b, the third guide portion 115c and the recessed groove portion 115d are provided in the circumferential direction.

[0036] Next, how to attach (close) the battery storage cap 112 will be described. As shown in FIG. 6(A), when a user attaches the battery storage cap 112 to the engagement portion 115 of the case main body 110, the protrusion portion 114 of the battery storage cap 112 comes into contact with the first guide portion 115a of the engagement portion 115. The first guide portion 115a is inclined like a so-called left-handed screw. Therefore, when the user lightly presses the battery storage cap 112 against the engagement portion 115 of the case main body 110 and twists it counterclockwise, the protrusion portion 114 of the battery storage cap 112 moves along the first guide portion 115a of the engagement portion 115.

[0037] Then, as shown in FIG. 6(B), the protruding portion 114 of the battery storage cap 112 comes into contact with the second guide portion 115b of the engagement portion 115. The second guide portion 115b extends slightly in the longitudinal direction of the case main body 110. Therefore, when the user lightly presses the battery storage cap 112 against the engagement portion 115 of the case body 110 , the protrusion portion 114 of the battery storage cap 112 moves along the second guide portion 115 b of the engagement portion 115 .

[0038] Then, as shown in FIG. 6(C), the protruding portion 114 of the battery storage cap 112 approaches the third guide portion 115c of the engagement portion 115. The third guide portion 115c is inclined like a so-called right-handed screw, and is disposed at the entrance of the recessed groove portion 115d so as to guide the third guide portion 115c into the recessed groove portion 115d. Therefore, when the user lightly presses the battery storage cap 112 against the engagement portion 115 of the case main body 110 from the state shown in Figure 6(B) and twists it clockwise, the protrusion portion 114 of the battery storage cap 112 moves along the third guide portion 115c of the engagement portion 115, as shown in Figure 6(C).

[0039] Next, when the user twists the battery storage cap 112 clockwise by 90 degrees relative to the engaging portion 115 of the case body 110 , the protruding portion 114 of the battery storage cap 112 moves into the recessed groove portion 115 d of the engaging portion 115 . Then, as shown in FIG. 6(D), the protruding portion 114 of the battery storage cap 112 engages with the recessed groove portion 115d of the engaging portion 115. At this time, the recess 114a of the protruding portion 114 of the battery storage cap 112 shown in FIG. 5(A) engages with the protrusion 115e of the recessed groove portion 115d of the engaging portion 115 shown in FIG. 5(B). The recessed groove portion 115d of the engagement portion 115 extends in a direction perpendicular to the longitudinal direction of the case main body 110.

[0040] Furthermore, the recessed groove portion 115d and the protruding portion 114 of the battery storage cap 112 are formed to occupy a range of just under 90 degrees in the circumferential direction of the cap. This provides sufficient strength to resist the tensile force of the case body 110 in the longitudinal direction against the battery storage cap 112. In other words, even if the spring force of the battery terminal (not shown) inside the case main body 110 acts in a pushing direction against the battery and acts in a pulling direction on the battery storage cap 112 as a reaction force, loosening of the battery storage cap 112 can be prevented.

[0041] The battery storage cap 112 can be removed (opened) by reversing the procedure used to attach (close) it. In other words, when the user twists the battery storage cap 112 counterclockwise by 90 degrees relative to the engagement portion 115 of the case main body 110, the engagement between the recessed groove portion 115d of the engagement portion 115 and the protrusion portion 114 of the battery storage cap 112 is released, and the battery storage cap 112 can be removed.

[0042] The portable light 100 thus obtained as an embodiment of the present invention comprises a case body 110, a semi-transparent section 120 connected to an end 111 of the case body 110 and formed into a cylindrical shape from a translucent material, a light emitting section 130 disposed inside the semi-transparent section 120 and in the case body 110, a power switch 140 for switching the light emitting section 130 on and off, and a semi-transparent lid 170 made of a translucent material and detachable from an end 121 of the semi-transparent section 120 opposite the case body 110. This allows the light irradiation / diffusion mode of the single light emitting section 130 to be easily switched by simply attaching and detaching the semi-transparent lid 170. The user can remove the semi-translucent cover 170 and direct the light to a desired location to use it as a flashlight, and the user can place the portable light 100 facing downwards to use it as a stationary electric lantern. Compared to conventional simple lanterns that use transparent materials, the light diffusion in lantern mode is improved, sufficient diffusion can be obtained, and the durability of the portable light 100 can be improved. In other words, by simply attaching and detaching the semi-translucent cover 170, the single light-emitting unit 130 can easily switch between light irradiation and diffusion modes, and by switching between the light irradiation and diffusion modes, the light diffusion can be varied, and sufficient diffusion can be obtained in diffusion mode.

[0043] Furthermore, the semi-transparent portion 120 is formed in a tapered shape that gradually widens from the base side, which is the case main body 110 side, to the end portion 121 side, which is the tip side, so that when the portable light bulb 100 is placed facing downwards, it can adequately illuminate the faces of people around it or illuminate objects at the height of a person's face.

[0044] Furthermore, by further comprising an infrared sensor unit 150 and a sensor switch unit 160 that can switch the infrared sensor unit 150 on and off, the user can turn the portable light source 100 downwards with the semi-transparent cover unit 170 attached and use it as a portable, mobile electric lantern, and can also use it as a sensor light or an eco-mode night light by turning the sensor switch unit 160 on. In other words, by simply attaching and detaching the semi-transparent cover unit 170, the light irradiation and diffusion modes of the single light-emitting unit 130 can be easily switched, and one device can be used in three ways: as a flashlight, an electric lantern, and a sensor light.

[0045] Furthermore, since the infrared sensor unit 150 is arranged on the outer periphery of the case main body 110 or the outer periphery of the semi-transparent unit 120, the effect is enormous, as it can be used as a sensor light with directional sensitivity or as a night light in eco mode. [Explanation of symbols]

[0046] 100 ··· Portable flashlight 110 Case body 111... End side (semi-transparent part side) 112 Battery storage cap 113 ··· Stringing bar 114 (Battery storage cap) protrusion 114a... (Protrusion) concave 115... Engagement part 115a First guide part 115b Second guide part 115c··· Third guide part 115d... Concave groove part 115e··· (convex groove part) 120... Semi-transparent part 121 ... end part 130 Light-emitting part 140 Power switch 150 Infrared sensor part 160 Sensor switch section 170... Semi-transparent lid part

Claims

1. A portable light, A case main body; a semi-transparent portion connected to an end of the case body and formed of a translucent material in a cylindrical shape; a light-emitting section disposed inside the semi-transparent section and in the case main body section; a power switch unit that can freely switch the light emitting unit on and off; The portable light comprises a semi-transparent cover made of a translucent material and detachable from the end of the semi-transparent part opposite to the case body.

2. 2. The portable light according to claim 1, wherein the semi-transparent portion is tapered so that the inside of the semi-transparent portion gradually widens from the base side, which is the case body side, to the end portion side, which is the tip side.

3. An infrared sensor unit; 3. The portable light according to claim 1, further comprising a sensor switch for switching the infrared sensor on and off.

4. 4. The portable light according to claim 3, wherein the infrared sensor is disposed on the outer periphery of the case body or the outer periphery of the semi-transparent part.

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