JPH06236702A - Side light source type desk lamp - Google Patents

Abstract

PURPOSE:To prevent the incidence of the surface reflected light of a paper surface to the human eyes and prevent the fatigue of the optic nerve by setting light sources in the side front and rear of the eyes to light a book. CONSTITUTION:A light source 1 lights a desk face 5 from near the side front and rear of the head part of a man by use of a ring arm 7 and a stand arm 6. The light source 1 is covered with a cover so that the light of the light source 1 is never directly incident to the eyes. Thus, the reflected light from a paper surface on the desk face 5 of the light source 1 is never incident to the human eyes, so that a character or photograph can be clearly seen, and the fatigue of the optic nerve is lessen.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Industrial Field of the Invention The present invention uses extraneous strong surface reflection light from the surface of paper when reading or writing on a desk or the like with illumination by a table lamp. The present invention relates to a desk lamp that does not make light incident on the tabletop, and thus significantly relieves eye fatigue and makes the paper surface and the like clearly visible.

(B) Conventional Technology In the conventional desk lamp, the positional relationship between the light source, the paper surface, and the front and back of the eye is as shown in FIG. The light emitted from one light source hits the surface of the paper, enters the inside of the paper to some extent, and is diffusely reflected in all directions. However, according to the law of reflection on the surface of the paper, a part of the light is reflected by the eight-surface reflected light having the same incident angle and the same reflection angle at the point A on the paper, and enters the eye. This light ray occurs even on copy paper, but it increases as it becomes glossy like a vinyl coating, and this light is unnecessary and harmful for reading information on the paper surface, It becomes a strong light due to reflection and enters the eye. In recent years, the number of beautiful papers with glossy surfaces such as beautiful color photographs printed on art paper has increased. If you look at these things with the light of a conventional desk lamp, the space is even more messy, and it is very hard to see. Of course, ordinary white paper also has eight surface reflected light without exception. These Tetekate are not necessary at all for reading information such as paper, but they are just to cause the optic nerve to be unnecessarily stimulated and tired. further,
If a light source stand was used to read the information on the paper more clearly, unnecessary and harmful surface reflection light was increased in proportion to the illuminance.

(C) Problems to be Solved by the Invention Accordingly, by removing unnecessary and harmful surface reflected light on the paper surface, a desk lamp was invented which can read information more clearly and does not give unnecessary fatigue to the optic nerve. Is. Further, some commercially available sunglasses use a polarizing lens. If you look at the road surface using this, you can clearly see the road surface. This is because the surface-reflected light on the road surface is blocked by the polarizing lens. Of course, instead of the road surface, 4th
The same effect can be obtained by looking at the paper surface as shown in the figure. This is because the road surface and the paper surface mainly reflect the light waves vibrating in the direction parallel to the surface as the surface reflected light, and the polarizing lens cuts the light waves. Therefore, if a polarizing plate is provided on the light source so as not to emit a wave parallel to the paper surface, the surface reflected light can be sufficiently reduced. However, due to the nature of the polarizing plate,
Since it does not allow all the light to pass through, it has the drawback that the illuminance of the table lamp will drop considerably. The present invention was also made to eliminate the surface reflected light without decreasing the illuminance.

(D) Means for Solving Problems Now, the means for solving the problems will be described with reference to the drawings. As shown in FIGS. 1 and 2, 2. Bring it around the sides of the human eye (head).

(B) And to actually bring it to the position of (a), use a ring arm or a stand arm as shown in FIG.
Illuminate. Needless to say, when implementing, the light source is covered with a cover so that the light from the light source does not directly enter the eyes.

Desk lamp that constitutes the positional relationship among the three parties, such as the light source, the human eye, and the paper surface as described above. (E) Effect of the Invention In the desk lamp configured as described above, the light rays from the light source are surfaced on the paper surface. In which direction the reflected light is reflected,
It never reaches the eyes of the person who uses the table lamp. In this way, the surface reflections that make the paper surface look faint are eliminated, and as a result, the characters and photographs are strangely visible. Of course, I can remember how the tiredness of the optic nerve gets very light.

(F) Other Embodiments The effect of the present invention can be obtained by placing the light source in front of and behind the side surface of the human eye (head), and therefore various shapes such as arms for holding the light source in a predetermined position can be taken. . For example, it may be a floor stand type, or the stand arm may be separated into two right and left instead of the ring arm as shown in FIG. In addition, the light source may not be on both sides and may be on one side or on the head, but shadows of the head and hands are likely to appear, and part of the surface reflected light enters the eye on the head and is not a sufficient effect. I can't expect it.

[Brief description of drawings]

FIG. 1 is a side view showing the positional relationship between the light source of the present invention, the human eye, and the paper surface. FIG. 2 is a plan view showing the positional relationship between the light source of the present invention, the human eye, and the paper surface. FIG. 3 is a perspective view of an embodiment of the present invention. Light source 2. Human eye 3. Space 4. Diffuse reflected light 5. Desk surface 6. Stand arm 7. Ring arm 8. Surface reflected light

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[Procedure amendment]

[Submission date] September 30, 1993

[Procedure amendment 4]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

FIG. 1 is a side view showing a positional relationship among a light source, a human eye, and a paper surface of the present invention.

FIG. 2 is a plan view showing the positional relationship between the light source of the present invention, the human eye, and the paper surface.

FIG. 3 is a perspective view of an embodiment of the present invention.

FIG. 4 is a side view showing a positional relationship between a normal light source and a person's eye plane by illumination of a conventional desk lamp.

[Explanation of symbols] 1. Light source 2. Human eye 3. Space 4. Diffuse reflected light 5. Desk surface 6. Stand arm 7. Ring arm 8. Surface reflected light

Claims (1)

[Claims] As shown in FIGS. 1 and 2, a desk lamp configured to illuminate a visual object such as a book by using light sources installed in front and back of a side of a human eye (head).