JP3073400U - Projection lighting device - Google Patents

Abstract

(57) [Problem] To provide a clear silhouette at a projection position by a lighting bulb, and to be safely used without damaging eyes even if light enters human eyes carelessly. SOLUTION: A condenser lens barrel 20 detachably attached to a tip of an illuminator body 10 for irradiating with a lighted light bulb 13, and a detachable attachment to the tip of the condenser lens barrel 20, Having a light-shielding plate 31 formed at its end with projection openings 32 formed in various forms.
Attached so as to be slidable in the front-rear direction on the tip of the condenser lens barrel 20 in a state where the mask 30 mounted on the mask 30 is entirely covered.
A focusing lens barrel 40 for projecting the shape of the projection opening 32 by focusing the light that has passed through the projection opening 32 with the condensing lens barrel 20; It consists of. The focus adjustment lens barrel 40 has a screw type structure or a click type structure.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention is used as, for example, a lighting device for a flashlight or an advertisement lighting device, a projection device such as a projection toy, or the like, and is a projection type suitable for a portable device capable of projecting a clear, predetermined-shaped silhouette at a projection position. The present invention relates to a lighting device.

[0002]

[Prior art]

 Conventionally, as a projection-type illumination device of this type, for example, a filter having a light-transmitting opening formed in the shape of an arrow or the like is disposed in front of a light-emitting opening of a laser device, and the laser device is disposed from behind the filter. In some cases, an arrow is displayed at a predetermined projection position in front by irradiating the light beam.

[0003]

[Problems to be solved by the invention]

 However, in such a conventional projection illuminating device, when an arrow projected by a highly directional light beam of the laser device accidentally enters human eyes, it is emitted in a state of being converged by the laser device. Since the light intensity itself is very high, the eyes may be damaged. In addition, since the light source itself of the laser device has a monochromatic wavelength, unnecessary diffraction phenomena and interference fringes are caused around the projected arrow, and the shape of the arrow is not clearly projected. There were problems such as becoming.

[0004] Therefore, the present invention has been devised in view of the above-described circumstances that existed in the past, and can be used safely without damaging the eyes even if light accidentally enters human eyes. In addition, by turning on a light source such as a light bulb, it is possible to easily form a clear, well-defined shape at the projection position.In addition to projection toys other than lighting equipment for flashlights and advertising lighting, etc. It is an object of the present invention to provide a projection-type lighting device suitable for carrying, which can be widely used as a projection tool or the like.

[0005]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, in the present invention, an illuminator body 10 illuminated by a light source (13), a condenser lens barrel 20 detachably attached to the tip of the illuminator body 10, A mask portion 30 having a light-shielding plate 31 at its end portion, which is detachably attached to the distal end of the condenser lens barrel portion 20 and has a centrally formed projection opening 32 of various forms, and a mounting portion; The illuminator body 10 illuminates the mask section 30 in a rearward direction, and is slidably attached to the front end of the condenser lens barrel 20 in a state where the entire mask section 30 is concealed. A projection-type lens barrel 40 for projecting the shape of the projection aperture 32 by focusing the light passing through the section 32 together with the condenser lens barrel 20. This is the lighting device 1. The focus adjustment lens barrel 40 has a threaded structure so that it can be moved in the front-rear direction by being screw-rotated with respect to the front barrel 22 of the condenser lens barrel 20, or has a front side. A click-type structure or the like can be used so as to be able to move in the front-rear direction while being sequentially locked to the lens barrel 22. An illuminator body 10 for irradiating with a light source (13), and a light shielding plate 31 which is detachably attached to a tip of the illuminator body 10 and has an opening 32 for projection of various forms formed at an end thereof. The projection illuminating device 1 includes a mask unit 30 and a focus adjustment lens barrel unit 40 movably attached to the mask unit 30 so as to cover the entire mask unit 30. A male screw portion 51 is formed on the outer peripheral surface of the mask portion 30, and the male screw portion 51 is screwed into a female screw portion 52 formed on the inner surface of the focus adjustment lens barrel 40 at the end opening side. In addition, the focus adjustment lens barrel 40 can be attached so that the mask 30 can be moved in the front-rear direction by being screwed to the mask 30 in a state of covering the entire mask 30.

In the projection illuminating device 1 according to the present invention configured as described above, the focus adjusting lens barrel 40 is moved forward and backward along the front barrel 22 of the condenser lens barrel 20. By sliding in the direction, the light illuminated by the light source (13) and illuminated backward by the illuminator body 10 and passing through the projection opening 32 of the mask unit 30 is collected by the condenser lens barrel 20 Focusing in conjunction with this, the opening shape of the projection opening 32 itself is clearly projected, and a clear silhouette is formed at an arbitrary projection position. The focus adjusting lens barrel 40 having a screw type structure is screw-rotated with respect to the front lens barrel 22 of the condenser lens barrel 20 so that the focus adjusting lens barrel has a predetermined thread pitch, for example. The part 40 itself is moved in the front-back direction. The focus adjustment lens barrel 40 having the click structure moves the focus adjustment lens barrel 40 itself in the front-rear direction while being sequentially locked to the front barrel 22. The focus adjustment lens barrel 40 movably attached to the mask unit 30 is a projection lens to be projected by light that has been irradiated backward by the illuminator body 10 and passed through the projection opening 32 of the mask unit 30. An image of the shape of the opening 32 itself is formed at an arbitrary projection position. The focus adjusting lens barrel 40 covers the entire mask 30 by screwing the male thread 51 of the mask 30 into the female thread 52 of the focus lens barrel 40. Then, the screw is made rotatable with respect to the mask unit 30, and the mask unit 30 is moved in the front-back direction at a predetermined screw pitch, for example.

[0007]

[Embodiment of the invention]

 Hereinafter, an embodiment of the present invention will be described with reference to the drawings. Reference numeral 1 shown in the figure is used as a lighting device for a flashlight or an advertisement lighting, a projection device such as a projection toy, or the like. For example, it is a projection-type lighting device suitable for carrying using batteries such as dry batteries.

As shown in FIG. 1, the projection type illumination device 1 is used to illuminate the front with light from a light bulb 13 as a light source, for example, which is turned on by built-in power sources 11a and 11b. The illuminator body 10 formed in a cylindrical shape, for example, and a condenser lens barrel 20 having a convex lens 25 attached to an end opening side of a tubular body detachably attached to the tip of the illuminator body 10. And a light-shielding plate 31 in which various forms of projection openings 32 are formed at the center on the end opening side of a cylindrical body detachably attached to the tip of the condenser lens barrel 20. The mask unit 30 is attached so as to cover the entire mask unit 30 so as to be slidable in the front-rear direction at the end of the condenser lens barrel unit 20, and is illuminated backward by the illuminator body 10. Opening for projection The convex lens 42 is arranged on the end opening side of the cylindrical body so that the light passing through the section 32 is focused together with the condenser lens barrel section 20 to project the opening shape of the projection opening section 32. And a lens barrel 40 for focusing.

The illuminator body 10 has, for example, two batteries 11 a and 11 b housed in series in the front-rear direction of a cylindrical handle 12, and the positive electrode of the battery 11 a in the front is inserted into the tip of the handle 12. The negative electrode of the rear battery 11b is in contact with one of the pair of rear contact terminals for the light bulb 13 detachably attached to the socket 12c, and the negative electrode of the rear battery 11b is provided at the rear end of the handle 12. The two batteries 11a and 11b are in contact with each other while being pressed forward by a spring-type contact 14 attached to the inside of the lid 12a that is opened and closed. The spring-type contact 14 is provided on the cover 12a of the handle 12 by, for example, rotating a dial-rotating power switch 15 in either the left or right direction. The other terminal is electrically connected to turn on the light bulb 13, while the power switch 15 is reversely rotated to electrically disconnect the other rear contact terminal of the light bulb 13 from the spring-type contact 14. The light bulb 13 is turned off.

A male screw portion 12b is formed on the outer peripheral surface on the distal end side of the handle portion 12, and a parabolic curved reflecting plate 16 having a reflecting mirror surface portion formed on the inner surface and a colorless transparent or colored covering plate. A transparent flat glass 17 is attached to the end opening side of the cylindrical body, and a mounting female screw cylindrical part 18 having a female screw part 18a formed inside with a gradually decreasing diameter toward the rear of the cylindrical body is formed. A trumpet-shaped hood housing portion 19 is attached by screwing the female screw tube portion 18 into the male screw portion 12b of the handle portion 12, and passes through a through hole 16a formed in the center of the reflection plate 16. The head of the light bulb 13 is arranged between the reflection plate 16 and the flat glass 17. The hood housing 19 may be opened by removing the flat glass 17 and leaving the bulb 13 exposed.

The condenser lens barrel 20 has a double-cylinder shape in which a large-diameter rear mounting barrel 21 and a small-diameter front barrel 22 are connected via a substantially central annular step 23. The rear mounting cylinder 21 is mounted on the hood housing 19 of the illuminator main body 10, and the distal end peripheral edge of the hood housing 19 of the illuminator main body 10 is inside the annular step 23. It is locked by. On the other hand, a lens holding frame part 24 is formed on the front end opening side of the front lens barrel part 22 so as to have a small diameter and slightly protrude outward and forward, and a convex lens 25 is attached to this.

The mask portion 30 is attached to the outer periphery of the lens holding frame portion 24 of the condenser lens barrel portion 20 such that an end opening side of the cylindrical body is fitted and fixed. On the opening side, animals such as rabbits as shown in FIGS. 1 and 3 (A), butterflies as shown in FIGS. 2 and 3 (B), and concrete shapes such as abstract shapes and buildings are shown. A light-shielding plate 31 in which various forms of projection openings 32 are formed in the center, such as a form bordered by an outer contour of another shape, is attached. The light shielding plate 31 itself may be formed integrally with the mask portion 30 from the opening of the end of the cylindrical body.

The lens barrel portion 40 for focus adjustment has a lens holding frame portion 41 having a small diameter at the end opening side of the cylindrical body and slightly projecting inward. It is attached. The other end opening side of the focus adjustment lens barrel 40 is attached to the front lens barrel 22 of the condenser lens barrel 20 so as to cover the entire mask section 30, and focus adjustment is performed. The other peripheral end of the lens barrel 40 for opening can be fitted into the annular step 23 of the condenser lens barrel 20 to a position where it is locked outside.

By doing so, the focus adjustment lens barrel 40 itself can slide in the front-rear direction along the front barrel 22 of the condenser lens barrel 20, and therefore, the projection opening of the mask 30. The light of the light bulb 13 passing through the section 32 is focused together with the condenser lens barrel section 20 so that the shape of the opening of the projection opening 32 itself is sharply projected, and furthermore, an arbitrary projection position. It can be easily projected and formed as a sharp silhouette.

The focus adjustment lens barrel 40 is rotated with respect to the front barrel 22 of the condenser lens barrel 20 so that it can move in the front-rear direction at a predetermined screw pitch, for example. A screw-type structure, or a click-type structure or the like so as to be able to move in the front-rear direction while being engaged with the front lens barrel portion while being sequentially engaged and stopped with a click may be employed.

Next, an example of assembling and using the embodiment configured as described above will be described. As shown in FIG. 1, first, a lid 12 a provided at the rear end of the handle 12 is provided. Then, the batteries 11a and 11b are inserted into the handle part 12, and the lid part 12a is screwed in while the batteries 11a and 11b are pressed by the spring-type contacts 14, and the lid is closed and fixed. After attaching the electric bulb 13 to the insertion socket portion 12c at the tip of the handle portion 12, the female screw tube portion 18 for mounting the hood housing portion 19 is screwed into the male screw portion 12b of the handle portion 12 and attached. The head of the light bulb 13 is disposed between the reflection plate 16 and the flat glass 17 through the through hole 16a of the plate 16.

A rear mounting barrel 21 of the condenser lens barrel 20 is attached to a tip of the hood casing 19 of the illuminator body 10, and a peripheral edge of the tip of the hood casing 19 is formed of a condenser lens barrel. 20 to be locked inside the annular stepped portion 23. The mask section 30 is fixed to the condenser lens barrel 20 such that the end opening side of the mask section 30 is fitted around the outer periphery of the lens holding frame 24 of the condenser lens barrel 20.

The other end opening side of the focus adjustment lens barrel 40 is mounted on the front barrel 22 of the condenser lens barrel 20 so as to cover the entire mask 30. At this time, when the projection illuminating device 1 is not used, the other end of the focus adjustment lens barrel 40 and the peripheral edge on the opening side are outside the annular step portion 23 of the condenser lens barrel 20. Insert until it locks.

Next, when using the projection illuminating apparatus 1 configured as described above, first, the focus adjustment lens barrel 40 is pulled out from the locking position outside the annular step 23 to the front, and the light is collected. The light that has passed through the projection opening 32 of the mask unit 30 illuminated backward by the illuminator body 10 while sliding in the front-rear direction along the front-side barrel unit 22 of the lens barrel unit 20 is a condensing lens barrel unit. By focusing in conjunction with 20, the shape of the projection opening 32 itself can be clearly projected on a predetermined object surface or in the air.

At the time of battery replacement, the lid 12a provided at the rear end of the handle 12 is opened, the used batteries 11a and 11b in the handle 12 are taken out, and new batteries 11a and 11b are inserted. Then, the lid 12a may be screwed in while the batteries 11a, 11b are pressed by the spring-type contacts 14, and fixed.

Although two batteries 11a and 11b such as dry batteries are employed in the projection illuminating device 1 according to the present embodiment, a rechargeable battery structure has been omitted from the drawing for other components. It is also possible to provide a power circuit with a plug for connecting to an outlet.

FIG. 2 shows another embodiment according to the present invention. The same components as those in FIG. 1 are denoted by the same reference numerals, and detailed description thereof is omitted. You. That is, in this embodiment, a mask portion 30 having a light-shielding plate 31 in which projection openings 32 of various forms are formed at the center, such as a form in which a rabbit's face is framed, is provided. The illuminator 10 is detachably attached to the tip of the hood housing 19. A male screw portion 51 is formed on the outer peripheral surface of the mask portion 30, and this male screw portion 51 is screwed to a female screw portion 52 formed on the inner surface of the focus adjustment lens barrel 40 on the end opening side. The focus adjustment lens barrel 40 is attached so as to cover the entire mask 30. A lens holding frame 41 having a small diameter and slightly projecting inward is formed on the opening side of the front end of the focus adjusting lens barrel 40, and a convex lens 42 is attached to the lens holding frame 41.

In this way, by rotating the focus adjustment lens barrel 40 itself with respect to the mask 30, the lens barrel 40 can slide back and forth with a predetermined screw pitch along the mask 30, and accordingly, the mask The shape of the opening of the projection opening 32 itself projected by the light of the electric ball 13 passing through the projection opening 32 of the projection 30 is imaged at an arbitrary projection position, so that the shape of the opening is sharpened. It can be projected.

[0024]

[Effect of the invention]

 With this configuration, a clear silhouette can be easily formed at the projection position by turning on the light bulb, and even if light enters the human eye carelessly, the eye is damaged. It can be used safely without such problems, and can be widely used as a projection device such as a projection toy in addition to a lighting device for a flashlight, an advertisement lighting, etc.

That is, according to the present invention, the illuminator body 10 illuminated by the light source (13), the condenser lens barrel 20 detachably attached to the tip of the illuminator body 10, and the condenser lens barrel A mask portion 30 having a light-shielding plate 31 at its end portion which is detachably attached to the front end of the device 20 and has various forms of projection openings 32 formed in the center, and covers the entire mounted mask portion 30; It is attached to the front end of the condenser lens barrel 20 in a concealed state so as to be slidable in the front-to-back direction. This is because the focus adjusting lens barrel 40 is formed by focusing together with the condenser lens barrel 20 to project the opening shape of the projection opening 32. Illuminator body 1 The light irradiated through the projection opening 32 of the mask unit 30 illuminated backward by 0 can be easily focused together with the focusing lens barrel 20, and the opening of the projection opening 32 itself can be focused. The shape can be projected and formed as a sharp silhouette at an arbitrary projection position in front.

The focus adjustment lens barrel 40 has a threaded structure so that it can be moved in the front-rear direction by being screw-rotated with respect to the front barrel 22 of the condenser lens barrel 20. Alternatively, it has a click-type structure or the like so that it can be moved in the front-rear direction while being sequentially locked to the front lens barrel. Therefore, the focus adjusting lens barrel 40 having the screw type structure is screw-rotated with respect to the front barrel 22 of the condenser lens barrel 20 so that the focus adjusting lens barrel has a predetermined thread pitch, for example. The unit 40 itself can be moved smoothly in the front-rear direction, and the focus adjustment lens barrel 40 itself can be accurately positioned with respect to the condenser lens barrel 20. In addition, the focus adjusting lens barrel 40 having a click structure can accurately move the focus adjusting lens barrel 40 itself in the front-rear direction while being sequentially locked to the front barrel 22. In addition, positioning and holding of the focus adjustment lens barrel 40 itself with respect to the condenser lens barrel 20 can be easily performed.

An illuminator main body 10 for irradiating with a light source (13), and a light shielding plate which is detachably attached to a tip of the illuminator main body 10 and has a projection opening 32 of various forms formed at an end thereof. The mask unit 30 includes a mask unit 30 and a focus adjustment lens barrel unit 40 movably attached to the mask unit 30 so as to cover the entire mask unit 30. Just by moving the projection 40, the shape of the projection opening 32 itself projected by the light that has passed through the projection opening 32 of the mask unit 30 illuminated backward by the illuminator body 10 can be set to an arbitrary projection position. An image can be formed, and the shape of the opening can be projected as a clear silhouette.

A male screw part 51 is formed on the outer peripheral surface of the mask part 30, and the male screw part 51 is screwed to a female screw part 52 formed on the inner surface of the focus adjustment lens barrel 40 on the end opening side. The focus adjustment lens barrel 40 is attached so that the screw can be rotated with respect to the mask 30 in a state of covering the entire mask 30 so as to be able to move in the front-rear direction at a predetermined screw pitch, for example. Since the focus adjustment lens barrel 40 can be screw-rotated with respect to the mask 30, the focus adjustment lens barrel 40 can be moved in the front-rear direction, and fine focus adjustment can be easily performed.

[Brief description of the drawings]

FIG. 1 is a schematic perspective view showing a cross section of an embodiment of the present invention.

FIG. 2 is a schematic perspective view showing a cross-sectional portion in another embodiment of the present invention.

FIGS. 3A and 3B are front views of a mask showing the shape of a silhouette projected by a light-transmitting opening in the present invention.

FIG. 4 is a perspective view when using projection.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Projection type illumination device 10 ... Illuminator main body 11a, 11b
... Battery 12 ... Handle part 12a ... Lid part 12b ... Male screw part 12c ... Insertion socket part 13 ... Light bulb 14 ... Spring type contact 15 ... Power switch 16 ... Reflective plate 17 ... Flat glass 18 ... Female screw cylinder part 18a for mounting ... Female screw part 19 ... Hood housing part 20 ... Condenser lens barrel part 21 ... Rear mounting barrel part 22 ... Front barrel part 23 ... Circular step part 24 ... Lens holding frame part 25 ... Convex lens 30 ... Mask part 31 ... Shielding plate 32 Light-transmitting opening 40 Focus lens barrel 41 Lens holding frame 42 Convex lens 51 Male screw 52 Female screw

Claims (6)

[Utility model registration claims] 1. An illuminator body illuminated by a light source, a condenser lens barrel detachably attached to a tip of the illuminator body, and a centrally mounted detachably attached to the tip of the condenser lens barrel. A mask portion having a light-shielding plate formed at the end portion with a projection opening formed in the shape of the above, and a front-rear sliding on the tip of the condenser lens barrel portion in a state of covering the entire mounted mask portion. It is mounted so that it can be illuminated, and the light illuminated backward by the illuminator body and passed through the light-transmitting opening of the mask is focused together with the condenser lens barrel to focus the light on the projection opening. A projection-type illumination device, comprising: a focus adjustment lens barrel for projecting an opening shape. 2. The lens barrel for focus adjustment has a screw-type structure so that it can be moved in the front-rear direction by being screw-rotated with respect to a front barrel of the condenser lens barrel, or a front mirror. 2. The projection-type illumination device according to claim 1, wherein the projection-type illumination device is configured to have a click-type structure so as to be movable in the front-rear direction while being sequentially locked to the cylindrical portion. 3. An illuminator body for irradiating with a light source, a condenser lens barrel detachably attached to the tip of the illuminator body, and a centrally mounted detachably attached to the tip of the condenser lens barrel. A mask portion having a light-shielding plate formed at the end portion with a projection opening formed in the shape of the above, and a front-rear sliding on the tip of the condenser lens barrel portion in a state of covering the entire mounted mask portion. It is mounted so that it can be illuminated, and the light illuminated backward by the illuminator body and passed through the light-transmitting opening of the mask is focused together with the condenser lens barrel to focus the light on the projection opening. A focusing lens barrel for projecting the shape of the opening, and the focusing lens barrel moves in the front-rear direction by being screw-rotated with respect to a front barrel of the condenser lens barrel. Screw-type structure, or to the front lens barrel A projection-type lighting device having a click-type structure or the like so as to be movable in the front-rear direction while being sequentially locked. 4. An illuminator main body for irradiating with a light source, and a mask unit having a light-shielding plate detachably attached to a tip of the illuminator main body and having an opening for projection of various forms formed at an end thereof. And a focus adjusting lens barrel portion movably attached to the mask portion so as to cover the entire mask portion. 5. A male screw portion is formed on the outer peripheral surface of the mask portion, and the male screw portion is screwed into a female screw portion formed on the inner surface of the focus adjustment lens barrel at the end opening side. 5. The projection-type illumination device according to claim 4, wherein a lens barrel for focus adjustment is attached so as to be able to move in the front-rear direction by being screwed with respect to the mask while covering the entire mask. 6. An illuminator main body for irradiating with a light source, and a mask unit detachably attached to a tip of the illuminator main body and having a light-shielding plate formed at its end with projection openings of various forms. A focus adjustment lens barrel portion movably attached to the mask portion in a state of covering the entire mask portion, forming a male screw portion on the outer peripheral surface of the mask portion, It is screwed into a female thread formed on the inner surface on the end opening side of the lens barrel for focus adjustment, and is moved in the front-rear direction by being rotated with respect to the mask in a state of covering the entire mask. A projection-type illumination device, wherein a focus adjustment lens barrel is attached so as to be able to perform the adjustment.