JPS5880601A - Generator for parallel luminous fluxes - Google Patents

Abstract

PURPOSE:To maintain the distance and optical axes of two opposed parabolic reflection surfaces accurately by molding said surfaces of a transparent resin into one body. CONSTITUTION:A generator 1 for parallel luminous fluxes consists of paraboloids P2, P3 which are molded of a transparent material of an acrylic resin or the like into one body, and aluminum vapor deposition is applied on the surfaces of only the parts AB, CD, EF that serve as reflection surfaces from the outer side. The part DE (W) is a window for allowing the passge of parallel luminous fluxes and consists of the plane perpendicular to optical axes. A recess 3 for detection of the detector 1 is formed at one end of a cylindrical body 2, and a paraboloid P1 is formed deep in the recess 3, whereby the generator for parallel luminous fluxes is constituted. The luminous flux from a spot light source placed at the focus F1 of the paraboloid P1 is reflected by the two paraboloids P3, P2 having a common focus F2 and is emitted as parallel luminous fluxes of high density through the window W.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides a parallel light flux generator Kil! that can obtain a convergent parallel light flux. do.

Conventionally, there is a device of this kind [as shown in FIG. 1]. In the figure, Ps, Pg, P> are paraboloids, Fl is the focus of the paraboloid P1, and F2 is the common focus of the paraboloids Ps and Pm.If you place a point light source at the focus F1, it will look like the figure. A parallel beam of light is obtained. However, in the conventional technology, the three paraboloids @ Ps, Pg, and Pg had to be processed separately and held in the relative positions as shown in the figure.

%, it is also necessary to accurately set the distance and optical axis for the droplet release product 'wiP', making the product extremely expensive.

In order to solve the above-mentioned problems in the work, this kind of 6
It is possible to reduce the amount by using different equipment or equipment at a low cost. Hereinafter, the present invention will be explained differently from Emk.

Iris 21J is a Confucian mg showing the basic structure of the present invention.
1IIc#, (1) is a parallel light flux generator according to the present invention. The paraboloid Pl is not directly related to the present invention, and instead of the paraboloid Pl, another one that generates parallel rays may be used. In superposition 1111, the paraboloids P8 and F3 are integrally molded with a transparent material such as acrylic resin, and Al R is applied from the outside to only the AB, CD, and EF parts, which will be the reflective surfaces.
11, DWs (b) are windows for passing parallel light beams, and are planes perpendicular to the optical axis. The surface on which the parallel rays enter on the parabolic 1iPs side is also a plane perpendicular to the optical axis. Therefore, if you can make a gold layer for molding the paraboloid 11 Ps, Ps t-lid, it will be cheaper by molding process.
It becomes possible to produce in large quantities.

Figures 3 and 4 show examples in which superposition M is applied to converge into a beam. In Fig. 3, a beam light flux generating sounder (11) by an overlapping 9111C is fitted to one end of a cylindrical shape 1 (1)! ! 1 ml (3) and 1 part (3
), the focal point Ft of the truncated surface P1, which represents a beam generator having a paraboloid P1, is placed.If a point light source such as a miniature light bulb is placed, a beam-shaped light beam with high density can be obtained from the window W.

In this case, the beam generator (11) is also shaped like a short octave or a drum, and its paraboloid P and P3' are paraboloids of revolution. FIG. 4 is a perspective view showing its shape.

11g5WA shows what happens when the present invention is applied to converge into a plane. In the figure, (1g) is the parabolic interval Pg, Ps 41 of the parallel beam generator (1) of FIG. 2 - constant direction.

For example, a planar light beam generator with a long lateral force Kjli is shown.

In this case, a long light source such as a fluorescent lamp is used as the light source. This results in a film of light converging onto a plane.

Figures H6 and Iris 7 are examples of the case where the present invention is applied to converge into a cylinder or a prism. In the 6th g, the horizontally elongated luminous flux i) (1 m) of the stripe diagram 5 is rotated by 1[' around the parallel optical axis that is not aligned with the own optical axis and is in a ring shape. In this case, a ring-shaped fluorescent lamp may be used as the light source, or parallel light may be generated from a light bulb. In this way, a cylindrical light beam can be obtained. The 7th s is the Senryo beam generator (12) shown in Fig. 5.
2 shows a prismatic beam generator (14) bent at four corners. By generating such a prismatic light beam -(14)K, a light beam having an angular a shape can be obtained.

The eighth and rattan 9E are examples in which the device is applied to converge into a conical or pyramidal shape. Bottom line 8! I shows a circular anchor Taoto generator (1st row) in which the direction of the optical axis of the smaller paraboloid P2 is changed in the cylindrical beam generator (in) shown in Diagram 6. In this case, the window W is also changed to a plane perpendicular to the optical axis. 11th gA
8gB is a partial side view showing the situation, and No. 8gB is a perspective view of the whole. By generating such a conical light beam 11 (is) K, one conical light beam can be obtained.

Figure Atsushi 9 shows the pyramidal beam generator (14) in Figure 1, in which the direction of the optical axis of the smaller paraboloid Pg is changed.
1) A pyramidal light flux is obtained by such a pyramidal light flux **device (1-) which indicates (i@).

10th JiA is a schematic diagram showing an application of the beam generation eccentricity shown in Figure 3. In II, (young is a gripping body corresponding to the 8-cylindrical body (2) shown in Fig. 3 of the irises, and its tip K11
A beam generator II (11), not shown, is fixedly assembled. Further, (5) shows an overhead projector, (6) shows a mirror, (7) shows a screen, and (8) shows an image projected onto the screen (7). If a cylindrical grip (2) is equipped with a switch for the K light source, it becomes an inexpensive light source, so it is useful as an indicator when using an overhead printer (5). .

This has the advantage that, unlike a normal pointing stick, it allows you to point easily even from a distance.

Figure 11 shows each modem Koto generator (Ig) in Figure 9 of Su S~.
This is a schematic diagram showing application #1 of ~(1.). lll is 1
As an example, in Figure 0, which shows the case where a three-dimensional interoperability diagram is created using the cylindrical beam generator (Is) of e#A and the conical beam generator (1s) of Figure 8, a74'' is a peg box. In addition to the cylinders and cones shown in the diagram, it is possible to create a 1m in 3-D stereoscopic diagram using light beams such as pyramids, prisms, planes, etc., so it can be used as a model for explaining 3D geometry or a soft material. It can be used as

Beam light flux generator (li) with three stripes for the above applications
= by combining two or more stages, Kogaku player (D
It can be used in place of the laser used in AD). In other words, the beam generator 1i (it) is made to have a small portion that is identical in shape to the parallel beam that enters the beam and further converges the parallel beam. When these are combined, a beam with even higher density can be obtained.

In addition, all of the above-mentioned embodiments can be easily manufactured by carving a gold layer using numerical control processing or the like, and then using the gold layer to perform a zuseiken process.

As explained above, according to the present invention, two paraboloids P
*m between Pg and Pg by integrally forming g and Ps
Not only can the optical axis be held accurately and the light focusing efficiency can be improved, but gold! Since it is a molding process using IIK, complex light flux generators such as cylinders, cones, and pyramids can be easily manufactured, and the quantity i! Ideal for

gmo easy 1IIj! Iris 11El is a schematic diagram showing a conventional example, Iris 2 is a Confucian drawing showing the basic structure of the present invention, Figures 3 and 1114 are cross-sectional and perspective views showing the embodiment 1P1tl of the present invention converging into a beam shape, and Figure S 71i is a perspective view showing an embodiment of the present invention converging into a planar shape, FIG. 6 is a perspective view showing an embodiment of the present invention converging into a cylindrical shape, and FIG. A perspective view showing an embodiment of the present invention in which the light beam sWA converges in a conical shape, FIG. 9 is a perspective view showing an embodiment of the present invention in which the beam sWA converges in a pyramidal shape by 1 gL, and FIG. 10 shows a beam flux generator. The stripes 11g are schematic diagrams showing application examples of various light flux generators and generators other than the beam generator.

F3... Common focus, Pz, Ps... @O, internal reflection paraboloid.

Claims (1)

[Claims] A parallel light beam generator that is integrally molded from transparent resin and has two opposing reflecting paraboloids that have a common focal point.