JPH02262205A - Lighting apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention (Field of Industrial Application) The present invention relates to a spot-shaped lighting fixture that can be used in commercial facilities such as stores.

(Prior art) Spotlight-type lighting equipment uses a reflector made of a translucent material, such as a glass substrate, on which an optical multilayer film that transmits infrared rays and reflects visible light is formed. It has been proposed to reduce the amount of

In addition, by forming an infrared absorbing layer on the surface of a metal base and using a reflector with an optical multilayer film formed on the surface of this infrared absorbing layer that transmits infrared rays and reflects visible light, the heat rays irradiated onto the irradiated surface are Some proposals have also been made to reduce the amount.

However, with the above-mentioned glass reflector or metal reflector, a separate lamp body is required to hold these reflectors, and the lamp body and reflector must be assembled to form a fixture. However, the number of parts increases and the entire shape of the reflector, lamp body, etc. is required, making the manufacturing process troublesome and expensive.

Furthermore, it has recently been proposed to use a film-like translucent synthetic resin as a base material for a reflector.

An optical multilayer film that transmits infrared rays and reflects visible light is formed on this synthetic resin substrate to reduce the amount of heat rays irradiated onto the irradiated surface.

Even with this, a lamp body part that holds the reflector is required,
There are disadvantages similar to those of the glass and metal reflectors described above.

(Problems to be Solved by the Invention) The present invention integrally forms the reflector part and the lamp body part with synthetic resin, and forms an optical multilayer film that transmits infrared rays and reflects visible light on the reflective surface part, thereby reducing the number of parts. To provide a lighting fixture which requires less quantity, is easy to manufacture, and reduces the amount of heat rays irradiated onto an irradiated surface.

[Structure of the Invention] (Means for Solving the Problems) The present invention provides an appliance main body including a reflector portion having a light projection opening on the front surface and a lamp body portion formed on the back side of the reflector portion;
A lamp disposed optically opposite to the reflector portion of the instrument body, and the instrument body has a heat resistant reflector portion.
The substrate is made of synthetic resin that transmits infrared rays, and the front surface of this substrate includes an optical multilayer film that transmits infrared rays and reflects visible light. It is characterized in that it is made of a synthetic resin containing the following, and the reflector part and lamp body part are integrally formed.

(Function) The lighting device of the present invention has a base made of synthetic resin that is heat resistant and infrared transparent, and a reflector that has an optical multilayer film that transmits infrared rays and reflects visible light formed on the front surface of the base. The fixture body is formed by integrally forming the lamp body portion formed by impregnating a heat-resistant synthetic resin with a heat conductive filler. By arranging the lamps optically opposite to each other on the reflector part of the main body of the device, out of the light emitted from the lamps,
The infrared rays are transmitted through the optical multilayer film and the substrate section, and the visible light is reflected by the optical multilayer film and is emitted from the light projection aperture.

Also, since the reflector part and the lamp body part are integrally formed of synthetic resin, no special member is required to hold them.
It has a simple structure and is easy to manufacture.

(Example) Embodiments of the present invention will be described with reference to FIGS. 1 to 3.

Reference numeral 1 denotes a device main body, and the device main body 1 includes a reflector portion 3 having a light projection opening 2 on the front surface, and a lamp portion 4 formed on the back side of the reflector portion 3.

This device main body 1 includes a substrate section 5 in which a reflector section 3 is made of a heat-resistant and infrared-transmissive synthetic resin such as polyetherimide, polyethersulfone, and polyimide, and a front surface of this substrate section 5 that transmits infrared rays. At the same time, it is formed to include an optical multilayer film 6 that reflects visible light, and the lamp body part 4 is made of a heat-resistant synthetic resin such as polyamide or polyphanrene sulfide, and is coated with MgO, BeO, and AIN.
, A I 203°T 102 or the like, and the reflector portion 3 and lamp body portion 4 are integrally formed.

In this embodiment, the reflector section 3 includes a substrate section 5 made of polyimide resin with a wall thickness of 125 μm and formed into a rotationally quadratic curved surface, and a high refractive index layer 6a of titanium oxide (Tto) on the front surface of the substrate section 5. It is formed of an optical multilayer film 6 formed by alternately laminating low refractive index layers 6a of silicon (SiO2).

Further, in this embodiment, the lamp body part 4 is formed of a polyamide resin containing MgO and having a wall thickness of 2 mm into a cylindrical shape with a bottom, and ribs 20 are formed radially on the circumferential side.

In this embodiment, the main body 1 of the appliance is made by molding the reflection plate part 3 into a rotating quadratic curved surface using polyimide resin, and then installing it in an injection mold for polyamide containing MgO2, and attaching the lamp body part 4 together with the reflection plate part 3. The reflector portion 3 and the lamp body portion 4 are integrally formed by injection molding. 7 is a lamp, and this lamp 7 is, for example, a halogen lamp. This lamp 7
is attached to a socket 8 provided at the inner bottom of the lamp body section 4, and is arranged to optically face the reflector section 3. Reference numeral 9 denotes a mounting portion provided on the lamp body portion 4, and the mounting portion 9 is provided with a mounting hole 1o through which a supporting member (not shown) can be mounted.

Next, the operation of this embodiment will be explained. When the lamp 7 is turned on, the visible light of the light emitted from the lamp 7 is reflected by the optical multilayer film 6 of the reflector section 3 and is emitted from the light projection aperture 2 together with the direct light. Further, the infrared rays are transmitted through the optical multilayer film 6, and further transmitted through the substrate portion 5, and are then dissipated.

The reflector part 3 is made of a synthetic resin having heat resistance and infrared transmittance, and the lamp body part 4 is made of a synthetic resin made of a heat-resistant synthetic resin containing a thermally conductive filler. The rise in temperature of the lamp body part 4 due to the infrared rays transmitted through the reflector part 3 is also suppressed, and the rise in temperature of the appliance body 1 can also be effectively prevented.

In this embodiment, reflection of ultraviolet rays can also be suppressed.

Although the present invention has been described in detail with respect to the above embodiments, the present invention allows various other embodiments. For example, the reflector portion and the lamp body portion may be formed separately and integrally formed by welding or the like. The lamp may also be a small high intensity discharge lamp. Furthermore, the optical multilayer film of the reflector portion may selectively transmit visible light as well as infrared rays. By allowing a portion of this visible light to pass through, the complementary color of the reflected light is irradiated onto the back side of the reflector, thereby improving the decorative effect.

[Effects of the Invention] As detailed above, the device body is made of a reflector portion made of a heat-resistant, infrared-transparent synthetic resin and a synthetic resin made of a heat-resistant synthetic resin containing a thermally conductive filler. Since it is formed integrally with the formed lamp body part, a holding member is not particularly required, so the number of parts can be reduced and manufacturing can be facilitated. Furthermore, the reflector section has good heat dissipation properties due to the transmission of infrared rays, and the lamp body section can be made of relatively low-cost resin, so it can be provided at low cost.

[Brief explanation of drawings]

The drawings show one embodiment of the present invention; FIG. 1 is a partially sectional side view, FIG. 2 is a partially sectional view at a different position from FIG. 1, and FIG. 3 is a part of the reflector part. FIG. Drafting of drawings (no changes to the contents) 1... Fixture body, 2... Light projection aperture. 3...Reflector part, 4...Light body part, 7...
lamp.

Claims (1)

[Claims] (1) A device body including a reflector portion having a light projection opening on the front surface and a lamp body portion formed on the back side of the reflector portion; disposed optically facing the reflector portion of the device body; The device body has a reflector plate made of a heat-resistant, infrared-transparent synthetic resin substrate, and an optical multilayer that transmits infrared rays and reflects visible light formed on the front surface of this substrate. The lamp body is formed of a synthetic resin made of a heat-resistant synthetic resin containing a thermally conductive filler, and the reflector part and the lamp body are integrally formed. lighting equipment.