JP2963306B2 - Tube with reflector and method of manufacturing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflector-equipped bulb used for lighting a museum or a store.

[0002]

2. Description of the Related Art Conventionally, halogen lamps with a dichroic mirror have been used for lighting of museums and stores. Halogen bulbs with dichroic mirrors integrate a dichroic mirror with a halogen bulb. It also has the feature that it can be suppressed.

As shown in FIG. 4, a halogen lamp with a dichroic mirror includes a reflecting mirror 103 integrally formed with a shade portion 103a and a cylindrical tube portion 104, and a cylindrical portion 10a.
An incandescent light bulb 5 which is a halogen light bulb having a sealing portion 8 adhered to the inside thereof with an adhesive 9. The reflecting mirror 103 is the shade unit 1
The multilayer optical interference film 2 is deposited on the inner surface of the substrate 03a. The inner surface of the seed part 103a is a paraboloid or a spheroid, and the light transmitting plate 14 is attached to the irradiation opening 103b. The light interference film 2 has a selective reflection characteristic and has an incandescent lamp 5.
Reduces the reflection of infrared radiation that is harmful to exhibits that emit light.

[0004]

Conventionally, in this type of halogen lamp with a dichroic mirror, in order to mount the incandescent lamp 5 on the reflecting mirror 103, first, an adhesive 9 is applied to the inner peripheral surface of the cylindrical portion 104, and then, This is performed by inserting the sealing portion 8 of the incandescent lamp 5 into the cylindrical portion 104 from the front of the shade portion 103a. However, adhesion between the inner peripheral surface of the tubular portion 104 and the adhesive 9 is poor, and problems such as the incandescent lamp 5 swinging and rattling after the adhesive 9 is dried have occurred.

[0005] The present invention is to provide a reflector-equipped bulb for firmly joining the reflector and the bulb.

[0006]

According to a first aspect of the present invention, there is provided a tube with a reflecting mirror, wherein a concave portion is formed on an inner surface of a cylindrical portion of the reflecting mirror having an irradiation opening and a cylindrical portion connected to the irradiation opening. Insert the sealed part of the bulb into the tube. The cylindrical portion including the concave portion and the sealing portion of the tube are fixed with an adhesive. According to a second aspect of the present invention, the inner surface of the cylindrical portion is sandblasted.

According to a third aspect of the present invention, there is provided a method of manufacturing a bulb with a reflecting mirror, wherein a predetermined portion of a reflecting mirror having a radiation opening and a cylindrical portion connected to the radiation opening is provided with respect to a center line of the reflecting mirror. Spray particles of a given size at an angle. After the concave portion is formed on the inner surface of the cylindrical portion by rotating the reflecting mirror in the circumferential direction, the sealed portion of the bulb is inserted into the cylindrical portion. The cylindrical portion including the concave portion and the sealing portion of the tube are fixed with an adhesive.

According to a fourth aspect of the present invention, there is provided a method for manufacturing a bulb with a reflecting mirror, comprising the steps of: forming an illumination opening having a light interference film and a cylindrical portion connected to the illumination opening; A shielding body is inserted inside the connecting portion, and the bottom of the irradiation opening connected to the cylindrical portion is closed at a predetermined angle with respect to the center line of the reflecting mirror at a predetermined angle with respect to the center line of the reflector. Spray particles of the particle size. After the concave portion is formed on the inner surface of the cylindrical portion by rotating the reflecting mirror in the circumferential direction, the sealed portion of the bulb is inserted into the cylindrical portion. The cylindrical portion including the concave portion and the sealing portion of the tube are fixed with an adhesive.

[0009]

According to a first aspect of the present invention, there is provided a tube with a reflecting mirror, wherein a concave portion is formed in an inner surface of a tube portion of the reflecting mirror having an irradiation opening and a tube portion connected to the irradiation opening, and the tube is sealed in the tube portion. Since the stopper is inserted and the cylindrical portion and the sealing portion of the bulb including the concave portion are fixed with the adhesive, the contact area between the inner peripheral portion of the cylindrical portion and the adhesive can be increased.

In the tube with the reflecting mirror according to the second aspect, since the inner surface of the cylindrical portion is sandblasted, it is easy to provide a concave portion at the back of the cylindrical cylindrical portion. Further, the contact area between the inner peripheral surface of the cylindrical portion and the adhesive is increased, and the inside of the concave portion and the peripheral portion of the concave portion are roughened, so that the adhesiveness between the cylindrical portion and the adhesive can be improved. According to a third aspect of the present invention, there is provided a tube with a reflecting mirror, wherein the cylindrical portion of the reflecting mirror having an irradiation opening and a tube portion connected to the irradiation opening has particles of a predetermined particle size at a predetermined angle with respect to the center line of the reflecting mirror. Is formed, and the reflecting mirror is rotated in the circumferential direction to form the concave portion on the inner surface of the cylindrical portion. Therefore, it is easy to provide the concave portion at the back of the cylindrical cylindrical portion. Furthermore, since the sealing portion of the tube is inserted into the tube portion and the tube portion and the sealing portion of the tube are fixed with an adhesive, including the concave portion,
The contact area between the inner peripheral portion of the cylindrical portion and the adhesive can be increased.

According to a fourth aspect of the present invention, there is provided a method of manufacturing a tube with a reflecting mirror, comprising: an irradiating opening having a light interference film and a cylindrical portion connected to the irradiating opening; Insert a shield inside the part, and in the state where the bottom of the irradiation opening connected to the cylinder is closed with the shield, particles with a predetermined particle size at a predetermined angle with respect to the center line of the reflecting mirror in the cylinder. Spraying,
Since the concave portion is formed on the inner surface of the cylindrical portion by rotating the reflecting mirror in the circumferential direction, it is easy to provide the concave portion at the back of the cylindrical portion. Furthermore, since the sealing portion of the tube is inserted into the tube portion and the tube portion and the sealing portion of the tube are fixed with an adhesive, including the concave portion, the inner peripheral portion of the tube portion and the adhesive are bonded together. The contact area can be increased.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention is shown in FIG.
As shown in FIG. 2, the sealing portion 8 includes an incandescent lamp 5 protruding from the rear end of the glass bulb 7, and the reflecting mirror 3 having the irradiation opening 3 b on the front surface and the cylindrical portion 4 on the rear portion. The cylindrical part 4 is
The concave portion 10 is formed on the inner peripheral surface by sandblasting. The sealing portion 8 of the incandescent lamp 5 is adhered to the inside of the cylindrical portion 4 of the reflecting mirror 3 with an adhesive 9.

The reflecting mirror 3 forms a glass substrate 1 by pouring the molten glass into a mold or the like, and a light interference film 2 for reducing reflection of harmful infrared rays emitted by the incandescent lamp 5 is provided at the shade portion 3a. Obtained by vapor deposition on the inner surface. The light interference film 2 is formed by alternately stacking low refractive index layers made of magnesium fluoride and high refractive index layers made of zinc sulfide. Optical interference film 2
Has a transmittance of about 80% in the infrared region having a wavelength range of about 760 nm or more, and is about 380 nm to about 760 nm.
It is about 20% for visible light in the wavelength region of nm.
In the incandescent lamp 5, the position of the filament 6 matches the focal position of the reflecting mirror 3. Sealing part 8, mode the filament 6
An electrode 6b for supplying a current through the rib foil 6a is provided at the rear end.

The sandblasting will be described with reference to FIG. First, a lid 13 made of a soft material such as silicon is used.
Closes the irradiation opening 3b of the reflecting mirror 3 to protect the light interference film 2. The reflecting mirror 3 is mounted on the rotating holder 11. The sandblast nozzle 12 is disposed behind the cylindrical portion 4 in an inclined posture such that the sandblast direction is 10 to 20 degrees with respect to the center line of the reflecting mirror 3. Next, the reflecting mirror 3 is rotated in the circumferential direction of the cylindrical portion 4 as shown by an arrow A, and
The 200th sand is sprayed on the inner peripheral surface of the cylindrical portion 4. Thus, a part of the inner peripheral surface of the cylindrical portion 4 is scraped off to form the concave portion 10.

As described above, since the concave portion 10 is formed by sandblasting, the concave portion 10 can be easily provided at the back of the cylindrical tube portion 4, and the productivity is good. Also,
The contact area between the inner peripheral portion of the cylindrical portion 4 and the adhesive 9 can be increased, and the inside of the concave portion 10 and the peripheral portion of the concave portion 10 become rough surfaces, so that the adhesion between the cylindrical portion 4 and the adhesive 9 can be improved. . Therefore, as shown in Table 1, the reflecting mirror 3 is compared with the conventional example.
And the incandescent lamp 5 can be increased in adhesion strength, and the incandescent lamp 5 can be prevented from swinging and rattling. Also,
The transmitted light can be diffused by the rough surface formed in the cylindrical portion 4, so that the light of the incandescent lamp 5 leaking from the cylindrical portion 4 is not dazzling.

[0016]

[Table 1] The present invention can be used not only for incandescent lamps but also for metal hide lamps and the like.

[0017]

According to the first aspect of the present invention, there is provided a tube with a reflecting mirror, wherein a concave portion is formed on an inner surface of a tube portion of the reflecting mirror having an irradiation opening and a tube portion connected to the irradiation opening. Since the sealing portion of the tube portion is inserted and the sealing portion of the tube and the sealing portion of the tube including the concave portion are fixed with the adhesive, the contact area between the inner peripheral portion of the cylindrical portion and the adhesive can be increased. it can. Therefore, it is possible to increase the adhesive strength between the reflector and the incandescent lamp, and prevent the incandescent lamp from swinging or rattling.

According to the second aspect of the present invention, since the inner surface of the cylindrical portion is sandblasted, a concave portion can be easily provided at the back of the cylindrical portion, and the productivity is good.
Further, the contact area between the inner peripheral portion of the cylindrical portion and the adhesive is increased, and the inside of the concave portion and the peripheral portion of the concave portion are roughened, so that the adhesiveness between the cylindrical portion and the adhesive can be improved. Therefore, it is possible to increase the adhesive strength between the reflector and the incandescent lamp, and prevent the incandescent lamp from swinging or rattling.

According to a third aspect of the present invention, there is provided a tube with a reflecting mirror having a predetermined angle at a predetermined angle with respect to a center line of the reflecting mirror, the cylindrical portion of the reflecting mirror having an irradiation opening and a cylindrical portion connected to the irradiation opening. Since the concave portion is formed on the inner surface of the cylindrical portion by spraying particles having a particle size and rotating the reflecting mirror in the circumferential direction, it is easy to provide the concave portion in the back of the cylindrical portion. Furthermore, since the sealing portion of the tube is inserted into the tube portion and the tube portion and the sealing portion of the tube are fixed with an adhesive, including the concave portion, the inner peripheral portion of the tube portion and the adhesive are bonded together. The contact area can be increased.

Therefore, the productivity is good, and the adhesive strength between the reflector and the incandescent lamp is increased, so that the incandescent lamp can be prevented from swinging or rattling. According to a fourth aspect of the present invention, there is provided a method of manufacturing a bulb with a reflecting mirror, wherein: Insert a shield into the cylinder, and spray particles of a predetermined particle size at a predetermined angle with respect to the center line of the reflecting mirror on the cylinder while the bottom of the irradiation opening connected to the cylinder is closed with the shield. Since the concave portion is formed on the inner surface of the cylindrical portion by rotating the reflecting mirror in the circumferential direction, it is easy to provide the concave portion at the back of the cylindrical portion.

Furthermore, the sealing portion of the tube is inserted into the tube portion, and the tube portion and the sealing portion of the tube are fixed to each other with the adhesive, including the concave portion. The contact area with the agent can be increased. Therefore, the productivity is good, and the adhesive strength between the reflector and the incandescent lamp is increased, so that the incandescent lamp can be prevented from swinging or rattling.

[Brief description of the drawings]

FIG. 1 is a sectional view of a bulb with a reflecting mirror according to an embodiment of the present invention.

FIG. 2 is a cross-sectional view showing a main part of a bulb with a reflecting mirror according to one embodiment of the present invention.

FIG. 3 is an explanatory view of a process for forming a concave portion.

FIG. 4 is a cross-sectional view of a tube with a reflecting mirror of a conventional example.

[Explanation of symbols]

 3 Reflecting mirror 3b Irradiation opening 4 Tube part 5 Incandescent lamp 8 Sealing part 9 Adhesive 10 Depression

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) H01K 7/02 H01K 3/16

Claims (4)

(57) [Claims] 1. A concave portion is formed in an inner surface of the cylindrical portion of a reflecting mirror having an irradiation opening and a cylindrical portion connected to the irradiation opening, and a sealing portion of a bulb is inserted into the cylindrical portion. Wherein the cylindrical portion and the sealing portion of the tube are fixed with an adhesive. 2. The tube with a reflecting mirror according to claim 1, wherein the inner surface of the cylindrical portion is sandblasted. 3. A method for spraying particles having a predetermined particle size at a predetermined angle with respect to a center line of the reflecting mirror on the cylindrical portion of the reflecting mirror having an irradiation opening and a cylindrical portion connected to the irradiation opening, By rotating the reflecting mirror in the circumferential direction to form a concave portion on the inner surface of the cylindrical portion, a sealing portion of the tube is inserted into the cylindrical portion, and the cylindrical portion and the tube including the concave portion are inserted. A method for manufacturing a bulb with a reflecting mirror, wherein a bulb sealing portion is fixed with an adhesive. 4. A shielding body is inserted inside a continuous portion between said irradiation opening and said cylindrical portion of a reflecting mirror having an irradiation opening having a light interference film and a tube portion connected to said irradiation opening, with blowing predetermined particle size of the particles at an angle to the center line of the reflector in the barrel portion of the bottom of the irradiation opening provided continuously to the cylindrical portion in a state that closes in the shield, the reflection By rotating the mirror in the circumferential direction, after forming a concave portion on the inner surface of the cylindrical portion, a sealing portion of the tube is inserted into the cylindrical portion, and the cylindrical portion and the tube including the concave portion are inserted. A method for producing a reflector-equipped bulb, wherein a sealing portion and a sealing portion are fixed with an adhesive.