JP2000040406A - Spot-light for painting sheet-metal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To extremely improve the quality of coating on a sheet-metal by radiating a white daylight on a coated curved surface at a desired angle of incident. SOLUTION: A stepdown transformer 2 is attached on a support 3 of a tripod 4 for a camera, and a spot-light whose spectral distribution almost matching the sunlight is slantably attached to a tip end of the support 3. The height of the support 3 is freely adjusted. A white daylight is spotlighted to sharply manifest the quality of paining. The equipment body including the transformer 2 is made compact and light, and it is easily moved and set up. The spot-light gives a spectral distribution shifted to a short wave side in comparison with a conventional halogen lamp.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a spotlight for sheet metal coating which accurately represents a coating.

[0002]

2. Description of the Related Art A mercury lamp is used as a sheet metal coating light. Mainly used for drying painted surfaces. It is movable but heavy. If the lighting angle or the illumination light spectrum of the curved dent or the coating film is different, the perceived appearance is also different. Fluorescent lighting and sunlight are just like clothes and fruits.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a spotlight for sheet metal painting for accurately grasping a dent or a painted surface of a curved surface of an automobile. The present invention has been developed with a primary focus on being small, lightweight, inexpensive, and easy to use even in rough places.

[0004]

A step-down transformer is mounted on a column 3 of a camera tripod, and a spotlight whose spectral distribution substantially matches the sunlight is attached to the tip of this column so as to be tiltable. The light distribution of a spotlight composed of a halogen lamp falls within a circle having a radius of 600 mm or less at a distance of 1 m.

[0005]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The center column 3 of a camera tripod is slidable. In addition to the leg itself of the tripod 4 being able to expand and contract, the height of the column 3 can be adjusted, so that it can correspond to the type of the target automobile and the sheet metal coating location. The transformer 2 and the spotlight 1 are attached to the tip of the support 3. Low-voltage electronic transformers for halogen lamps reduce commercial voltage to 12
Step down to bolts. A 50 w halogen lamp can be driven. Compared with the conventional mercury transformer, the size and weight can be significantly reduced. The present invention has limited use as lighting that accurately represents the coating. No large output is required during coating film drying. The spectral distribution of the spotlight 1 is close to sunlight as shown in FIG. The jagged graph in which the circles are plotted in the figure is sunlight, and the black circles are the spectrum distribution of the spotlight 1. , Spotlight 1 adopting a special multi-layer coating mirror emits daylight white light,
A predetermined light distribution is exhibited by using the front condenser lens. 1m
First, the light distribution characteristic is within a circle having a radius of 650 mm or less, and the illuminance is 1000 lux or more. Preferably, 1
It fits within a circle of 300 mm within m distance, and the illuminance within the circle is preferably about 2900 lux. FIG. 2b is a comparison diagram with a conventional halogen lamp, and it is understood that the spotlight 1 used in the present invention has an excellent spectrum on the short wavelength side. Excellent energy saving effect.

[0006] A tripod 4 is arranged near the painted surface of a car 5 to be repaired as shown in FIG.
The spotlight 1 is tilted to irradiate a spot on the painted curved surface. The curved surface of the repaired part emerges clearly by the irradiation of lunch light. By irradiating with spectral distribution light close to sunlight, the coating quality is improved and repair spots are indistinguishable. In order to change the irradiation angle or adjust the illuminance on the curved surface for repair painting, the tripod 4 may be lifted and moved.

[0007]

In short, according to the present invention, a step-down transformer 2 is mounted on a column 3 of a camera tripod 4, and a spotlight whose spectral distribution substantially matches sunlight is provided at the tip of the column 3.
1 can be tilted so that the painted surface can be expressed sharply and accurately, and the efficiency of sheet metal painting work and the quality of finishing can be improved.

[Brief description of the drawings]

FIG. 1 is a perspective view.

FIG. 2A is a spectrum distribution diagram of a spotlight, and FIG. 2B is an output comparison diagram with a conventional halogen lamp.

[Explanation of symbols]

 Reference Signs List 1 spotlight 2 transformer 3 prop 4 tripod 5 car

Claims (5)

[Claims] 1. A spotlight for sheet metal coating, comprising a transformer 2 and a spotlight 1 mounted on the upper end of a tripod column 3 whose height is adjustable. 2. The spotlight for sheet metal coating according to claim 1, wherein the spotlight has a spectral distribution substantially matching that of sunlight. 3. The spotlight according to claim 1, wherein a daylight white halogen lamp is used for the spotlight. 4. A spotlight for sheet metal coating, comprising a step-down transformer 2 mounted on a column 3 of a tripod for a camera, and a spotlight 1 having a spectral distribution substantially matching the sunlight is tiltably mounted on the tip of the column 3. 5. A spot white light halogen lamp for mounting a transformer 2 and a spotlight 1 at the tip of a column 3 whose height can be adjusted, and which sharply expresses the texture of the coating, is used for the spotlight 1. Spotlight.