TWI238242B - Beam splitter, laser marking apparatus equipped with the beam splitter, multi-beam generator and line beam generating optical system - Google Patents

Abstract

A beam splitter is configured by assembling three triangular prisms having bottom surfaces formed in shapes of right isosceles triangles. A film is formed on side surfaces of the prisms that include the edges of each right isosceles triangle for separating incident light. With this construction, light directing at the apex angle of the triangle is reflected as two beams and transmitted as one beam by the light separating surface. Hence, the light incident on the beam splitter is separated in three directions. Accordingly, it is able to provide an optical system capable of forming a plurality of beams with substantially the same strength from a single laser beam, and a low cost laser marking apparatus equipped with the above-described optical system and capable of emitting a plurality of line beams.

Description

1238242 发明 Description of the invention: [Technical field to which the invention belongs] The present invention relates to a laser beam splitter for splitting one laser beam into a plurality of laser beam splitters and a multi-beam generating optical system using the beam splitter, especially closed inside and outside the house. During the construction of a house, a laser daylight is used for daylight operation. [Prior art] When building a house, especially at the beginning of construction, it is necessary to draw a standard line for setting the installation standards of various components and the positioning of component processing, that is, day line operations. Therefore, in a construction site, tools such as a level gauge are used to perform level marking, and a plurality of marking ink lines are attached to the walls of the target building, and these are connected to form daytime ink lines for construction purposes Benchmark. The day line includes a "triangle line" that draws a vertical line from the floor to the wall and the ceiling, a "triangle rule line (large triangle rule line)" that draws a right angle on the ceiling with two "vertical lines", or In addition to various lines such as "land (horizontal line)" where horizontal lines are drawn on the wall, there are "ground ink" (dots) drawn on the floor. At least two people need to perform the day line work by manual work, which is often complicated and inefficient. In order to improve this problem, a laser daylight device having a linear light irradiation function has recently been widely used to efficiently perform daylight operation. If there is a laser line drawing device, one can easily enter the day line operation, so it has gradually become an indispensable construction tool for construction work. 312 / Invention Specification (Supplement) / 92-11 / 92123417 for non-multi-line industries in the large line of installed objects 5 1238242 In order to achieve the efficiency of day line operations using laser day line devices, it is best to use A laser daylight device is used to illuminate a plurality of daylight lines. For this reason, devices that can irradiate two or more lines with one device have recently been proposed. Conventionally, as a method for irradiating a plurality of lines from one laser daylight device, a method using a plurality of laser light sources and a plurality of lines obtained by dividing a laser beam emitted from one laser light source are known. Way of line. In the case of the former method, there is a problem that the cost of the device increases as the number of laser light sources mounted increases. On the other hand, as the latter method of obtaining a plurality of linear lights by dividing the laser light, for example, as disclosed in Japanese Patent Application Laid-Open Publication No. Hei 9-1 5 9 4 5 1, there is a method of laminating a complex number in series in a laser emission direction. Way of constructing a half mirror to exit the optical system. However, in this method, the light transmitted through the first half mirror (half-mirror) has a reduced intensity of 1/2, and then the light transmitted through the second half mirror has a reduced intensity of 1/2. In this way, because the light intensity of each penetrating half-mirror is gradually reduced, the light intensity of each divided beam is different, and the brightness of a plurality of line lights is different. In addition, since it is necessary to constitute a plurality of half mirrors side by side in order to divide the light beam, there are problems that the optical system becomes complicated and the number of parts of the optical element increases. For this reason, conventional laser daylight devices capable of radiating a plurality of linear lights are mostly structures having a laser light source having a linear light quantity. However, as described above, as the number of light sources increases, the price of the device also increases. Therefore, in daytime operations, expensive equipment is necessary to perform more efficient operations. 6 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 [Summary of the Invention] The present invention is to solve these conventional problems. One of the purposes of the present invention is to provide a light beam that can form a plurality of light beams from one laser light. A simple structured beam splitter uses the beam splitter of the beam splitter. Another object of the present invention is to provide a low-cost laser daylight device capable of irradiating a plurality of linear lights on which the above-mentioned beam generator is mounted. In order to achieve the above object, the present invention provides a beam splitter including a penetrating body having at least two surfaces; a first light separation section formed on a first surface among at least two surfaces; and a second light separation section, The second surface is formed on a second surface of the two surfaces to obtain a plurality of separations from one incident light. In addition, the present invention provides a multi-beam generator including: a light 2 system generating a light beam; and a beam splitter formed by at least It has two surfaces consisting of a light penetrating body of the light beam, a first surface 1 light separation portion formed on the at least two surfaces, and a second separation portion formed on the second surface of the at least two surfaces. In addition, the present invention provides a linear light generating optical system including: the optical system generates laser light; a collimating lens that collimates the light emitted from the light source into collimated light; and a triangular prism that forms a cloth having triangular columns with 3 sides. A triangle ridge of a first light separation and a second light separation unit is formed on two sides of the three sides of the triangular column, and the collimated light is received by the two sides to separate the collimated light. It is four light beams; and a generating optical element is arranged on at least one light path in a diameter of a light beam exiting from the triangle ridge, and converts the light beam into linear light. In addition, the present invention provides a laser daylight device, which includes: Laser 312 / Invention Specification (Supplement) / 92-11 / 92123417 on a lifter and multi-light: light to at least ^ light. P., the incident second light source, transformed shape, part and top angle line optical path device, 7 1238242 system generates a light beam; a beam splitter is formed by a light penetrating body having at least two faces to be incident on the beam, The first part of at least two faces is composed of a separation part and the second part of the second face formed on the at least two faces; the linear light generating optical element is composed of the first light and the second light. The light beams separated by at least one of the light separation sections of the separation section obtain light; and a support section is configured to support the laser, the beam splitter, and the green optical element. [Embodiment] (First Embodiment) Hereinafter, a spectroscope of the present invention, a multi-beam generator of the spectroscope, and a laser daylight setting equipped with the spectroscope will be described with reference to FIGS. 1 to 13. FIG. 1 is a perspective view showing a basic configuration of the spectroscope 1. Figure 2 Top view of the device 1. The beam splitter 1 is composed of three triangular prisms (triangular prism optical element (稜鏡)) 1 a, 1 b, and 1 c whose bottom surface is a right-angle isosceles, and is formed in a generally rectangular parallelepiped shape. In more detail, 1 a is the shape of the bottom surface of its right-angle isosceles triangle, and has 2 sides including two sides (equivalent sides) of the shape 2 2 (which is a right angle) 2 0 a In addition, the triangular columns 1 b, 1 c At the bottom of the right-angle isosceles triangle, there are side faces 2 0 b including the bottom sides facing the top corners 2 3, 2 4 and the two sides of the triangular column 1 a 2 0 a, 2 0 a and the triangular column 1 respectively. b. The faces 20b, 20c are joined. The triangular pillars la, lb, and lc are made of glass or plastic. In this embodiment, the material of rhenium is B K 7 of glass material (refractive index is 1.5). A three 31W invention specification (Supplementary) / 9 孓 11/92123417 that constitutes a beam of light. The first beam of light is separated from the light, and the optical line is produced. The wire is used as a combination of beam-splitting triangles, and the triangular prisms form a vertex angle. 2 0 The shape of a 〇, with side penetration of 20 c 〇c is a corner cylinder 8 1238242-shaped element 1 a, 1 b, 1 c. The dimensions are as follows, for example. The length of one side of the side surfaces 20 a and 20 a is 5 μm, and the height of the triangular column is 5 mm. Therefore, the overall beam splitter 1 has a width of 7 mni, a depth of 3.5 πΐίη, and a height of 5 m hi 〇 On each of the two sides 20 a, a light separation film 2 for separating incident light into transmitted light and reflected light is formed. The light separation film 2 is located between the sides 20 a and 20 b, and between the sides 20 a and 20 c. The two side surfaces 20 a forming the light separation film 2 function as two light separation surfaces that separate incident light into transmitted light and reflected light. The light separation film 2 has a specified reflectance (about 67% in this example) and a specified transmittance (about 33% in this example). As the material of the light separation film 2, any material can be used as long as it separates incident light into transmitted light and reflected light. The material of the light separation film 2 is preferably a metal such as Cr, A 1 or T i 02.

Dielectric materials such as SiO2 and MgF2. The optical separation film 2 is formed of a thin film of these materials as a single layer or multiple layers. In the case of a multilayer structure, the light separation film 2 can either laminate metal films with each other, or a multilayer dielectric layer (Dielectric Multiple Layer) with a dielectric material film, or a laminated metal film with a dielectric material film. Hybrid (hybrid) membrane. In this embodiment, the light separation film 2 is a single-layer dielectric film. As shown in FIG. 3, the spectroscope 1 having a related structure is used to make a light beam B1 emitted from a light source (not shown) incident toward the vertex angle 22 of the triangular prism 1a. The light B1 incident on the spectroscope 1 is reflected by the light separation film 2 to become light B 2 on one side, and penetrates to B 3 on the other side. For example, for the sake of simplicity, 'If the laser power (1 aserpower) of the incident light B 1 is set to 1 0 0, enter 9 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 and the power in the emitted light is 5 The part of 0 is used for reflection and transmission in the right direction in the figure, and the part of the remaining power of 50 is also used for reflection and transmission in the left direction in the figure. In this example, the reflectance of the light separation film 2 is approximately 67%, and the transmittance is approximately 33%. Therefore, the intensity of the reflected light of the light separation film 2 is 50 × 0.67 = 33.5. The intensity of the transmitted light becomes 50χ (1-0.67) = 16.5. The left and right directions are also calculated in the same way. In other words, the intensity of the reflected light divided into the left and right becomes 3 3.5, the intensity of the transmitted light becomes 16. 5 X 2 = 3 3, and the separated three beams have approximately uniform intensity. In addition, two reflected lights B 2 of the light beam separated by the spectroscope 1 may be positioned on the same straight line, and one transmitted light B 3 may be positioned on a straight line perpendicular to the two reflected lights B 2. The reflectance and transmittance of the light separation film 2 are not limited to those described above. The intensity of the separated light B 2, B 2, B 3 depends on these reflectances and transmittances. The two light separation films 2 may have different reflectances and transmittances. In addition, the beam splitter 1 has a simple structure because it can form three outgoing light beams only by combining three optical elements 1 a, 1 b, and 1 c. In addition, the beam splitter 1 is constituted by a transparent triangular prism 1 a whose bottom surface shape is a right-angle isosceles triangle. Therefore, three outgoing light beams B 2 and B 3 can be generated in a right-angle direction. Therefore, if it is mounted on a laser daylight device 12 to be described later, it is very suitable for drawing vertical lines and land lines. Next, a method for manufacturing the spectroscope 1 will be described. First, as shown in FIG. 4, a light separation film 2 (a dielectric single-layer film in this example) is formed by vapor deposition or the like, and the light separation film 2 is used to respectively transmit light at a desired ratio and Reflected on the two sides 20 a of the triangular ridge 1 a. At this time, the film of the light separation film 2 is made so that the ratio of light transmission and reflection becomes a desired value 10 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242. In this example, the film thickness of the light separation film 2 is produced so that the reflectance of the light separation film 2 is approximately 67% and the transmittance is approximately 33%. Next, as shown in FIG. 5, the light separation film 2 formed on the two side faces 2 0 a of the triangular ridge 1 a and the side faces 2 0 b and 2 0 c of the triangular pillars 1 b and 1 c are arranged to face each other and joined. , Thereby joining the triangular ridge 1 a with the triangular columns 1 b, 1 c. A common bonding agent can be used for bonding, but it is also possible to use the intermolecular force generated by these bonding surfaces when the light-separating film 2 on the smooth surface is combined with the side surfaces 2 b and 20 c. Next, the principle of increasing the number of generated light beams by combining the beam splitter 1 and the other triangular ridges 3 will be described with reference to Figs. In addition, the triangular ridge 3 is a transparent triangular pillar whose bottom surface shape is a slightly right-angled isosceles triangle. As shown in FIG. 6, when the light beam B 5 is incident on the side surfaces 31, 3 2 from the apex angle 30 side of the triangle 稜鏡 3, the light beams B 6, B 7 are emitted from the side surface 33 of 稜鏡 3 at a specific angle. Hereinafter, the relationship between the incident angle and the exit angle will be described in detail with reference to FIG. 7. First, the incident angle of the light incident from the lower edge line 31 of 稜鏡 3 in the figure is 45 °. The light system directly enters the inside of the maggot at an angle of 0 1. If the refractive index of the sacrificial material is set to nP = 1.5 (in the case of BK7) and the refractive index of air is 1, then the following formula (1) can be established by Snell's law. Ixsin45〇 = 1.5xsin01 (1) When 0 1 is obtained from the formula (1), it becomes 0 1 = 2 8 °. Therefore, 0 2 = 1 7 ° is obtained. Next, from the formula (2), 1.5xsinl7〇: = lxsin (93 (2) 11 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242, to obtain 0 3, then 0 3 = 2 6 °. That is, The light that enters from the apex angle 30 side of the triangle 稜鏡 3 at an incidence angle of 45 °, exits obliquely upward from the 稜鏡 bottom surface 33 at an angle of 26 °. Because the incident beam B5 has a certain degree of thickness 1/2 of the incident light beam B5 is incident from the lower edge line 31 of the triangle 稜鏡 3 as shown in FIG. 7 and emerges obliquely upward at an exit angle of 2 ° (beam B 6). The remaining 1/2 of the system is It enters from the upper ridgeline 3 2 of the triangle 稜鏡 3 and exits obliquely downward at an exit angle of 2 6 ° (beam B 7). That is, the light beam B 5 which enters from the apex angle 30 of the right-angle isosceles triangle. , Is separated into two beams B 6 and B 7, and exits obliquely upward and downward at an angle of 26 °. The right-angled isosceles triangle 稜鏡 3 is arranged as shown in FIG. 8, and only the beam B8 1/2 is incident on the bottom surface 33. Therefore, according to the above principle, because 1/2 of the light beam B 8 is emitted at an angle of 26 ° (beam B 9), the remaining 1/2 does not pass through the inside of the beam. Therefore, it directly enters the air (beam B10). As described above, it can be seen that the exit angle can be changed by controlling the shape, refractive index, incident angle, etc. of 稜鏡 3. A side view of the multi-beam generator 40 of the mirror 3 is shown in FIG. 10. The multi-beam generator 40 includes a collimated light source 42, a beam splitter 1, and a triangular ridge 3. The multi-beam generator 40 is configured by combining triangular edges The mirror 3 is arranged behind the beam splitter 1 and generates a total of 4 beams. The collimated light source 4 2 is composed of, for example, a semiconductor laser and a collimating lens (not shown). When the collimated light source 4 2 makes the beam B1 1 incident on the beam splitter 1 to obtain two reflections located on the same line and traveling directions different from each other by 180 ° 12 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 Light B 1 2 (corresponding to B in FIG. 3 2) and 1 penetrating light B 1 3 (corresponding to B 3 in FIG. 3). Then, a part of the penetrating light B 1 3 emitted from the beam splitter 1 passes through the triangular prism 3, and the light path is changed inside the ridge to 2 6 ° (beam B 1 4 (corresponding to B 9 in FIG. 8)). At the same time, the remaining It does not pass through the inside of the triangle 稜鏡 3, and therefore directly enters the air (beam B15 (corresponding to B1 0 in FIG. 8)). Therefore, a total of 4 light beams B 1 2, B 1 2, B can be obtained from one light source 4 2 1 4. B 1 5. In this example, although only one light beam B1 3 in the output light of the beam splitter 1 is separated into two light beams, the other outgoing light B 1 2 may be similarly used as required. Split into 2 beams. Next, an example in which the beam splitter 1 and the triangular beam 3 are mounted on the laser daylight device 12 will be described with reference to FIGS. 11 to 13. As shown in FIG. 11, the laser daylight device 12 basically consists of a linear light generating optical system 4 that generates linear light, a support mechanism portion 5 for horizontally maintaining the linear light generating optical system 4, and a cover line light generating device. The optical system 4 and the housing 54 of the support mechanism section 5 are configured. The linear light generating optical system 4 includes a beam splitter 1 and a triangular prism 3. The supporting mechanism 5 uses a known gimbal suspension bracket (g i m b a 1) mechanism. The gimbal suspension bracket mechanism is provided with a supporting frame 5 0, a large ring 51, a small ring 5 2 and a mounting table 53. The large ring 51 is swingable about the X axis with respect to the support frame 50 through a bearing (not shown). The small ring 5 2 is swingable around the axis (direction perpendicular to the paper surface) with respect to the large ring 5 1 through a bearing (not shown). A mounting ring 5 3 on which the optical system 4 is mounted is fixed to the small ring 52. With the above configuration, the mounting table 5 3 on which the optical system 4 is mounted can be kept horizontal. Figures 12 and 13 are side views and 13 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 which are schematic views showing the line light generating optical system 4. The linear light generating optical system 4 includes a semiconductor laser 6, a collimator lens 7, a beam splitter 1, a triangular prism 3, and 4 glass rod lenses 8, 9, 10, and 11. The laser beam emitted from the emitter 6 is converted into collimated light (parallel light) by the collimating lens 7 and proceeds in a horizontal direction. Next, the collimated light is split into three light beams by the spectroscope 1 of this embodiment. The transmitted light is incident on the triangular beam 3 arranged behind the beam splitter and split into two beams. That is, one laser beam emitted from the semiconductor laser 6 can obtain four collimated lights. Next, the four collimated beams are converted into linear beams by transmitting glass rod lenses 8, 9, 10, and 11 which are one of the optical elements that generate linear light. Here, the directions of the linear light generated by the rod lenses 8, 9, 10, and 11 are defined by the arrangement directions of the rod lenses 8, 9, 10, and 11. That is, when a horizontal line of light is desired, the rod lens is arranged so that its axis becomes the vertical direction, and when a vertical line of light is desired, the rod lens is arranged so that its axis becomes the horizontal direction. In this embodiment, the rod lenses 8, 9, and 10 are arranged so that their axes become horizontal, and the rod lenses 11 are arranged so that their axes are perpendicular to the horizontal direction, thereby obtaining three vertical line lights L1. L 2, L 3 and 1 horizontal line light L 4. As described above, if the beam splitter 1 of this embodiment is used, a laser beam can be separated into a plurality of laser beams in a simple manner. That is, the spectroscope 1 can generate 3 output light beams from one incident light at a very simple and low cost. Moreover, by mounting the beam splitter 1 on the optical system 4 of the laser line device 12, a plurality of laser beams can be easily obtained from one light source. Also 14 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 That is, by applying the beam splitter 1 to the laser daylight device 12, three vertical lines or land lines can be simply formed. As a result, it is possible to provide a low-cost plural-line laser daylight device. (Second Embodiment) Hereinafter, a linear light generating optical system according to a second embodiment of the present invention and a laser daylight device equipped with the linear light generating optical system will be described with reference to Figs. 14 to 20. Fig. 14 is an explanatory diagram (side view) showing the linear light generating optical system 100 of this embodiment. The linear light generating optical system 100 includes a laser light source 101, a collimating lens 102, a triangular prism 103, a reflecting mirror 104, and rod lenses 105 and 106. The laser light source 1 0 1 has a laser emitting surface 1 0 1 a. The laser light source 1 0 1 is arranged in a state where the laser emitting surface 1 0 1 a is horizontal. Triangular 稜鏡 1 0 3 is a triangular column whose bottom surface is a right-angled isosceles triangle. The triangle 稜鏡 1 0 3 is made of glass or plastic which can penetrate light. Triangular ridge 103 is in the shape of the bottom surface of a right-angled isosceles triangle, and has two side surfaces 103a and 103b including two sides forming a vertex angle 103d; and a side surface 103c including a bottom side facing the vertex angle 103d. The triangular ridge 1 0 3 is such that its vertex angle 10 3 d is opposite to the laser exit surface 101 a through the collimating lens 102. In this embodiment, unlike the triangular prism 1 a of the first embodiment, no light separation film is formed on the three sides 10 3 a, 10 3 b, and 10 3 c. However, the side surfaces 10 3 a and 10 3 b have reflectance (for example, several%) and transmittance (for example, 100-several%), and have a light separation surface that reflects a part of the incident light and penetrates the remaining part. Functions. 15 312 / Instruction of the Invention (Supplement) / 92-11 / 92123417 1238242 The light emitted from the laser emitting surface 1 〇 1 of the laser light source 1 〇 1 passes through the collimating lens 1 0 2 to form parallel light with a specified size. (Collimated light) while traveling horizontally. Then, the collimated light is incident from the side of the top angle 1 0 3 d of the triangle 稜鏡 103, and is separated into two reflected lights R1 and R 2 and two penetrating lights T1 and T by the triangle 稜鏡 103. 2. That is, a part of the incident light is reflected by the side surface 1 0 3 a and travels in the upward direction in the figure, that is, the vertical upward direction, as a piece of reflected light R 1. The other part of the incident light is reflected by the side surface 1 0 3 b and travels in the downward direction in the figure, that is, the vertically downward direction, as another reflected light R2. The other part of the incident light penetrates the side surface 1 0 3 b, passes through the interior of the 稜鏡 10 3 as the penetrating light T1, and is deflected by a specified angle by the refraction effect to exit from the 稜鏡 end surface 10 3 c. The remaining portion of the incident light penetrates the side surface 103a, passes through the inside of the prism 103 as the penetrating light T2, and is deflected by a predetermined angle by refraction to exit from the end surface 103c. In this embodiment, the penetrating light T1 is used for vertical line irradiation, and the penetrating light T2 is used for horizontal line irradiation. The transmitted light T 2 is reflected by the reflecting mirror 104, and its traveling direction is adjusted to a horizontal direction. The direction of the rod lens 105 is arranged so that its axis is horizontal, and the direction of the rod lens 105 is arranged so that its axis is vertical. Therefore, the transmitted light T 1 is converted into vertical line light by the rod lens 105. The transmitted light T 2 is converted into horizontal light by the rod lens 106. Next, a description will be given in detail of a state from when the light enters the triangular ridge 103 until it exits with reference to FIG. 15. The triangular prism 1 0 3 has its vertex angle 10 3 d facing the laser exit surface 10 1a. That is, the triangle 稜鏡 1 0 3 is configured so that the optical axis 0 extending from the laser exit surface 16 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 1 Ο 1 a will be the vertex angle 1 Ο 3 d The state of halving. Therefore, 1/2 of the incident light is incident on the side 1 0 3 a, and the remaining 1/2 is incident on the side 1 03b ° The incident angle of the light incident from the lower edge line 1 0 3 b of 稜鏡 1 0 3 becomes 4 5 °. A part of this light directly enters the inside of the maggot at an angle of 0 1. If the refractive index of the wood material is set to η P = 1.5 (in the case of B K 7) and the refractive index of air is 1, the following formula (3) can be established by Snell's law. Ixsin45〇 = 1.5xsin01 (3) When 0 1 is obtained from the formula (3), it becomes 0 1 = 2 8 °. Therefore, we get 0 2 = 1 7 °. Next, if the formula (4) 1.5xsinl7 ° = lxsin03 (4) is obtained as 0 3, | J 0 3 = 2 6 °. Therefore, it can be seen that a part of the light entering the side surface 〇3 b from the apex angle 1 0 3 d of the triangle 稜鏡 103 at an angle of incidence of 45 ° from the bottom side of the triangle 0 1 0 3 c is relatively horizontal. The light exits at an upward angle of 6 ° (through the light T 1). On the other hand, the remainder of the light entering the side 103 b at the incident angle of 45 ° is reflected at a reflection angle (45 °) equal to the incident angle to form reflected light R2. Therefore, it can be seen that the reflected light R2 travels in a vertical direction that is 90 ° downward from the optical axis 0 of the incident light. Here, because the incident light has a certain degree of thickness, 1/2 of the incident light is incident from the lower edge line 1 0 3 b of the triangular ridge 1 0 3, and a part (the penetrating light T 1) is emitted at 2 6 ° And the remaining part (reflected light R 2) exits vertically downward. The remaining 1/2 of the light is incident from the upper edge line 1 0 3 a of the triangular prism 103, and a part of it (through the light T 2) is directed downward at an exit angle of 2 6 ° 17 312 / Invention Specification (Supplement) / 92 -11 / 92123417 1238242 exits, and the remaining part (reflected light R 1) exits vertically upward. In other words, the light incident from the apex angle 1 0 3 d of a right-angle isosceles triangle is separated into 4 lights' and vertically upwards, vertically downwards, 2 6 ° from the horizontal direction, and from the horizontal direction, respectively. Shoot down at an angle of 2 6 °. According to the linear light generating optical system 100 as described above, since the collimated light is incident on the side of the vertex angle 10 3 d of the triangle 稜鏡 103, four light beams can be generated from one incident light beam. That is, two light beams in a direction substantially perpendicular to the incident direction of the collimated light and two light beams along the approximate incidence direction of the collimated light are generated. Therefore, if the linear light generating optical system 100 is mounted on a laser daylight device, two vertical beams, one horizontal line beam and one vertical line beam can be obtained from one incident beam. The vertical beam is suitable for ground ink, while the linear light is suitable for drawing vertical lines or land lines. Further, as the light source 101 of this embodiment, it is preferable to use a laser that generates a circular light beam having a large circularity similar to that of an unprocessed laser beam. FIG. 16 is an explanatory diagram (side view) showing a modification example of the linear light generating optical system 1 0 0. In this modification, a red semiconductor laser is used as the light source 1 0 1. Generally, the circularity of the red semiconductor laser beam is small and the beam shape is elliptical. Therefore, if a red semiconductor laser is used as the light source 1 0, when the red laser beam is separated into 4 beams and directly converted into line light by 稜鏡 103, the vertical line light and horizontal line light generated will be caused. Make a difference in the width of its lines. Here, in the present modification, the double beam 1 107 is arranged on the light path of the penetrating light T 1 or T 2 so that the line width of the vertical line light is substantially the same as the line width of the horizontal line light. 18 312 / Instruction of the Invention (Supplement) / 92-11 / 92123417 In the system 1 Mirror 1 Beam section collimation 103 In the ellipse direction, the wide-axis A beam is A perpendicular to the vertical long axis but perpendicular to each other 1 beam In the direction 1238242 of the linear light generating optical system 1 2 0, it is also the same as the linear light generating in FIG. 14: 0 0, and the light emitted from the red semiconductor laser 1 0 1 is converted into collimated light through the quasi 0 2. Here, the red semiconductor laser surface generally has an elliptical shape. Therefore, the beam cross section of the light obtained by the collimator lens 102 also becomes an elliptical shape. Accordingly, the cross sections of the four light beams obtained by the triangle are all elliptical. In this case, consider a case of a sugar rod lens N (105, 10) having a major axis diameter of A and a minor axis diameter of B. As shown in FIG. 17 (a), in a state where the long axis A direction of is perpendicular to the axis direction of the rod lens N, and when the elliptical light beam is incident on the rod lens N, the obtained degree becomes B. On the other hand, as shown in FIG. 17 (b), in the case where the elliptical direction is parallel to the axial direction of the rod lens N, the width of the obtained linear light is made incident on the rod lens N. Therefore, in order to generate line width lines and horizontal lines on both sides of the rod lenses 105 and 106, it is necessary to make the direction of the transmitted light A and the rod lens 105 as shown in FIG. 17 (a). The axis direction is perpendicular. At the same time, as shown in the figure, the long axis A direction of the transmitted light T2 is also made straight with the rod lens 106. Yes, the rod lens 105 and the rod lens 106 are arranged so that their axes are perpendicular to each other. Here, in this modified example, 0 7 belonging to the image rotation element is arranged on the way of the light path penetrating the light T1 or T 2 to thereby take the shape direction. In this modification, the light source 101 generates a light beam along the long axis A direction. In this case, the long axis A direction of the penetrating light T1 is 312 / Invention Manual (Supplement) / 92-11 / 92123417 The ellipses that are obtained by learning the straight light first enter the ellipse of the square light The angle (B) of the 17 (a) axis of the T1 double-angle transformation perpendicular to 19 1238242 is perpendicular to the axis of the rod lens 105 as shown in Fig. 17 (a). On the other hand, the long axis A direction of the transmitted light T 2 is formed in a relationship as shown in FIG. 17 (b) parallel to the axis of the rod lens 106. Here, the double-lens 10 7 is disposed in the middle of the light path of the penetrating light T 2, and specifically, is located between the mirror 104 and the rod lens 106. As shown in FIG. 17 (c), the double 稜鏡 107 has two side faces 107a, 107a parallel to the long axis L; a bottom surface 107c; an upper surface 107b; and an incident surface 1 0 7 d inclined with respect to the long axis L and Exit surface 1 0 7 e. The side surface 1 0 7 a is formed in a ladder shape. The double prism 1 0 7 is arranged in a state where the long axis L and the optical axis 0 of the transmitted light T 2 are aligned with each other. The bottom surface 1 0 7 of the double 稜鏡 10 7 c is a reference position in a state of being horizontally arranged. In addition, the state in which the double pin 10 7 is rotated around the long axis L from the reference position by an angle of 0 is referred to as an angle 0 position. In the case where the double beam 1 0 7 is at the angle 0 position, the cross-sectional shape of the light beam passing through the light T 2 is rotated by an angle of only 20 °. In this modification, the double-chirped 10 7 series is arranged at a position of an angle of 45 °, and the cross-sectional shape of the beam of transmitted light T2 is rotated by an angle of 90 °. Accordingly, the penetrating light T 2 emitted from the double-lens 107 is incident on the rod lens 106 in the direction shown in FIG. 17 (a). With this structure, since the two sides of the elliptical beams T1 and T2 are opposite to the rod lenses 105 and 106, the long axis A direction of the beam cross section is perpendicular to the axis direction of the lens. Fig. 17 (a) The relationship shown is incident, and therefore, the obtained vertical line light and horizontal line light have the same line width B (short axis diameter of the ellipse). In the above example, the light source 101 generates a light beam in the direction of the long axis A along the vertical direction. However, the light source 101 can also generate a light beam whose long axis A direction is along a horizontal direction of 20 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242. In this case, the long axis A direction of the transmitted light T2 is formed in a relationship shown in FIG. 17 (a) which is perpendicular to the axis of the rod lens 106. However, the long-axis A direction penetrating the light-transmitting T 1 is formed so as to be parallel to the axis of the rod lens 105 as shown in Fig. 17 (b). Here, if the double 稜鏡 10 7 is arranged in the light path of the penetrating light T 1, that is, it is set at a position between 稜鏡 1 0 3 and the rod lens 10 5, as shown in FIG. The transmitted light T 1 is incident on the rod lens 105 in the direction shown by 17 (a). In addition, the light source 1 0 1 may generate a light beam whose long axis A direction is an arbitrary direction. In this case, it is only necessary to prepare two double beams 1 0 7 and arrange them respectively in the light path of the penetrating lights T1 and T2 so that the beam cross-sectional shapes of the penetrating lights T1 and T2 are rotated only by a necessary angle. It is only necessary to enter the corresponding rod lenses 105 and 106. FIG. 18 is an explanatory diagram (side view) showing a modification example of the linear light generating optical system 120. FIG. In the linear light generating optical system 140, a double-lens 107 is not disposed, and an anamorphic lens 108 is disposed at the rear of the collimator lens 102. The anamorphic lens 108 converts the aspect ratio (as spe c t r a t i) of the collimated light of the ellipse, and converts the beam shape into a circle. The aspect ratio indicates the roundness of the ellipse. The anamorphic lens 108 converts elliptical collimated light into circular collimated light to form light having a major axis diameter and a minor axis diameter of B, that is, light having a circular beam shape. The penetrating light T b T 2 formed by separating the circular light beam by 稜鏡 103 is also a circular light beam having a major axis diameter and a minor axis diameter B. Therefore, the vertical lines of the line width B and the horizontal lines of the line width B can be obtained by the rod lenses 105 and 106. 21 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 In addition, instead of the anamorphic lens, any other optical member that can change the circular collimation to circular collimated light can be used. FIG. 19 is a schematic explanatory view showing a line device 1 1 1 on which the above-mentioned line light generating optical system 100 is mounted. Laser line drawing device 1 1 1 Optical unit that basically generates linear light 1 0 9 Structure part 1 for horizontal holding optical system 4 1 1 Covering optical unit 1 9 9 and support mechanism 1 1 0 1 1 2 Make up. Since the support mechanism section 1 10 has the same configuration as the support mechanism section 5 of the first embodiment, description thereof will be omitted. The laser daylight device 1 1 1 according to this embodiment shows a case where nowhere is used as the light source 101. No processing laser because of its circularity. This is a beam shape that can be obtained even without the use of double-lens 107 or anamorphic lens 108. Accordingly, in the present embodiment, the optical unit 1 0 9 generates the optical system 1 0 0 (refer to FIG. 14). However, other line light generating optical systems 1 2 0 (see FIG. 16) may be used depending on the application. ) Or as shown in Figure 18). FIG. 20 is an explanatory diagram showing the configuration of the optical unit 10 (the light emitted from the laser light source 1 0 1 in a side view passes through a collimating lens 10 2 to become a collimated light of a fixed size and advancing horizontally. Next, the The collimated light is incident from the side of the top angle 10 3 d of three 103, and the reflected light R 1 and R 2 reflected on the sides 10 3 a and 10 3 b respectively travel in the vertical direction and point light. The penetrating lights T 1 and T 2 that penetrate the side surfaces 1 0 3 a and 10 3 b pass through the interior of the mirror 10 3 and are deflected by a certain angle by refraction, and the end surface 10 3 c exits. In this embodiment, The penetrating light T 2 is used for line irradiation, and the reflection mirror 104 is used to adjust the travel of the light 312 / Invention Specification (Supplement) / 92-11 / 92123417 The housing of the support machine shows that the laser is large, and it is a laser with a line to the circular 140 (see the figure). It has a triangular angle and is formed into a rounded triangular edge from the prism to the horizontal direction to 22 1238242 as the horizontal direction. Next, the penetrating light T1 and T2 are converted into linear light by the rod lenses 105 and 106. That is, the penetrating light T1 is converted into a vertical line light. The penetrating light T2 is converted into horizontal line light. According to the laser line drawing device 1 1 1 thus configured, two line lights and two dot lights can be obtained from one light source. As described above, if this embodiment is used 1 0 0, 1 2 0, or 1 4 0 can be used to easily separate a laser beam into 4 laser beams. In addition, the optical system 1 0 0, 1 2 0 or 1 4 0 When mounted on a laser daylight device 1 1 1, 4 laser beams can be easily obtained from a single light source 1 01, so it is possible to generate daylight laser light at low cost. As a result, it can provide low Laser daylight device with two linear lights and two dot lights. (Third embodiment) Hereinafter, a spectroscope according to a third embodiment of the present invention, and the mounting of the same will be described with reference to Figs. 21 to 33. The laser daylight device of the beam splitter. Fig. 21 shows the beam splitter 2 0 1 in this embodiment. The beam splitter 2 0 1 is made of glass or plastic that can transmit light. In this embodiment, it is used Β 7 of glass material (refractive index is 1.5). The beam splitter 2 Ο 1 has a rectangular parallelepiped shape. The beam splitters 2 Ο 1 face each other. The two sides have optical planes 2 0 2 and 2 0. The optical planes 2 2 and 2 4 are parallel to each other. In this example, the beam splitter 201 has a length of 20 mm, a height of 10 mm, and a depth (optical planes 202 and 2 0 The interval between 4) is 10 mm. A first light separation film (first light separation surface) 203 for separating incident light into transmitted light and reflected light is formed on a part of the optical plane 203. A second light separation film (second light separation surface) 2 0 5 is formed on a part of the optical plane 2 0 4. 23 312 / Invention (Supplement) / 92-11 / 92123417 1238242 Both the first light separation film 2 0 3 and the second light separation film 2 0 5 are the same as the light separation film 2 of the first embodiment, and are A single or multilayer film of a metal film or a dielectric film. In this example, the first light separation film 203 has a reflectance of 33% and a transmittance of 67%. The second optical separation film 205 has a reflectance of 50% and a transmittance of 50%. The first light separation film 203 and the second light separation film 205 are the same as the light separation film 2 of the first embodiment and can be formed by vapor deposition or the like. It is only necessary to form a film having a desired reflectance and transmittance. FIG. 22 shows a top view of the beam splitter 2 O 1. The incident light B 2 1 is incident on the first light separation film 203 at an angle (specifically, an incident angle of 45 °). Part of the incident light B 2 1 (in this example, 33%) is reflected and becomes reflected light R 2 1. The remaining light (67% in this example) becomes the penetrating light T 2 1 and passes through the inside of the beam splitter 2 0 1. When the transmitted light T 21 reaches the second light separation film 205, a part (50% in this example) of the transmitted light T 2 1 is reflected and becomes the reflected light R 2 2. The light R 2 2 passing through the inside of the beam splitter 2 01 is emitted from the optical plane 2 0 2 and becomes a light ray R 2 3. The remaining light (50% in this example) in T 2 1 penetrates the second light separation film 2 0 5 and becomes light T 2 2. Therefore, three separated light beams R21, R23, and T22 are obtained from the beam splitter 201. The separated lights R21, R23, and T22 have approximately the same intensity (33% = 67% X 50%). The reflectance and transmittance of the first light separation film 203 and the second light separation film 205 are not limited to the above examples. The intensity of the separation and light R 2 1, R 2 3, and T 2 2 depends on these reflectances and transmittances. Next, the principle of dividing the incident light B 2 1 into three lights R 2 1, R 2 3, and T 2 2 will be described in detail with reference to FIG. 2 3. 24 312 / Invention (Supplement) / 92-11 / 92123417 1238242 As shown in Figure 2 3, the laser light B 2 1 of the collimated light is made incident at an angle of 4 5 ° with respect to the normal of the optical plane 2 0 2 (Incidence point 0). A part of the incident light B 2 1 is reflected at an angle of 45 ° with respect to the normal of the first light separation surface 2 0 3 to become reflected light R 2 1. The remaining light T 2 1 enters the inside of the beam splitter 2 0 1 at an angle of 0 with respect to the normal. At this time, if the refractive index of the air is set to 1 and the refractive index of the spectroscope 2 0 1 is set to η, the following formula (5) can be satisfied by Snell's law.

Isin45〇 = nsin0 (5) A part of the second light separation plane 2 05, T 2 1 is reflected at an angle of 0 with respect to the normal to become reflected light R 2 2, and passes through the inside of the beam splitter 2 0 1 Is emitted from the optical plane 2 0 2 (ray R 2 3). At this time, by Snell's law, the light ray R23 forms an angle of 45 ° with the normal of the exit plane optical plane 202. The remaining light in T 2 1 passes through the second light separation surface 205 and becomes a light ray T22. According to Snell's law, the light ray T22 forms an angle of 45 ° with the normal of the second light separation surface 205, and therefore, T 2 2 is parallel to the incident light B 2 1. If the incident point 0 of the incident light B 2 1 of the first light separation plane 2 0 3 is set as the origin, the normal of the incident point is the y-axis, and the axis perpendicular to the y-axis is the X-axis, then the ray T 2 1 The formula of the straight line is · y = c 〇t 0 · x (6) Here, if the distance in the y-axis direction between the first light separation plane 2 Ο 3 and the second light separation plane 2 〇 5 is set to d, the first The linear formula of 2 light separation surface 2 0 5 becomes: y = -d (7) 25 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 The light ray T 2 1 and the second light separation surface 2 0 5 The coordinates of the point of intersection A from equations (6) and (7) become A (-dtan (9, -d) 0. The length b of the line segment OA becomes: b = ((-dtan Θ) 2 + (-d) 2) 1 / 2 = d (l + tan2 θ) 1/2 (8) Therefore, the deviation 5 of incident light B 2 1 from light T 2 2 is expressed by the following formula. (? = Bsin (45 °-Θ) = d (l + tan2 θ) 1/2 · sin (4 5 0 — 0) (9) Next, if the exit point of the light ray R 2 3 of the optical plane 2 2 is set to C, and the length of the line segment 0C is L, it becomes : L = bsi η θ · 2 = 2d (l + tan2 θ) 1/2 · si η (9 = 2 dta η θ (10) Therefore, the interval w between the rays R 21 and R 2 3 becomes: w = Lcos45 0 = 2d (l + tan20) 1/2 sin0 cos45〇 = 2 dta η Θ. cos45〇 (11) For example, if the refractive index of the material of the spectroscope 2 0 1 is set to 1.5, using formula (5), that is, lsin45 ° = 1.5sin0, we can get 0 = 28 °. In addition, if the distance between the optical planes 202 and 204 is set to 10 mm, 0 = 2 8 ° is substituted into equation (9) to obtain the deviation 5 between the light B 2 1 and the light T 2 2, that is: 5 10 (l + tan 2 2 8 °) 1/2 · sin (4 5 0 — 2 8 °) = 3. 3mni Here, the incident position 0 on the first light separation film 2 0 3 is separated from the second light The distance in the X-axis direction of the incident position A on the film 205 is L / 2. According to 26 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242, from the formula (10), L / 2 = dtan0. Therefore, we can know The distance in the X-axis direction between the point of incidence of light on the first light separation film 203 and the point of incidence of light on the second light separation film 205 is approximately dta η 0. From this, it can be seen that when the incident light B 2 1 is incident on the first light separation film 2 0 3, the penetrating light T 2 1 must reach the second light separation film 2 0 5. Therefore, on the optical plane 2 2 2 The first light separation film 2 0 3 and the second light separation film 2 0 5 are formed on the 2 0 4 side in a direction parallel to the optical planes 2 0 2 and 2 0 4 at a position deviated only by the distance dta η 0. can. Specifically, in FIG. 2, the left and right central portions of the first light separation film 2 0 3 and the left and right central portions of the second light separation film 2 05 may be formed so as to be shifted only in the left and right directions. The distance dta η (9 is sufficient. Similarly, the interval w between the light rays R 21 and R 2 3 becomes: w = 2 · 1 0 (1 + tan 2 2 8 °) 1/2 · sin28 ° cos45 ° = 7 5mm With this, according to the beam splitter 2 01, it is possible to easily form a light ray T 2 2 traveling in a light path parallel to the incident light B 2 1 and a light ray R 2 traveling in a light path perpendicular to the incident light B 2 1 3 rays of 1 and R 2 3. Next, the spectroscope 3 0 1 of the first modification of this embodiment will be described with reference to FIGS. 24 and 25. The spectroscope 3 0 1 is characterized in that it can generate and incident light The deviation 6 of B 2 1 is zero (0) of the outgoing light ray T 2 4. As shown in FIG. 24, the beam splitter 3 0 1 is a combination of two rectangular parallelepipeds in an L shape. That is, the beam splitter 3 0 1 is the same as the beam splitter 2 0 1 of FIG. 21, and has optical planes 2 2 and 2 0 4 as the two sides facing each other. The optical planes 202 and 204 are parallel to each other. The beam splitter 301 is additionally It has optical planes 2 0 6 and 2 7 as the two sides facing each other. The optical plane 2 0 6 27 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 and 207 are parallel to each other and are parallel to the optical The planes 202 and 204 intersect perpendicularly. The spacing of the optical planes 2 0, 2 0 4 and the optical planes 2 0 6 and 2 7 are equal. In this example, the size of the L-shaped beam splitter 3 0 1 is 30 mm. (Length of optical planes 202 and 204) x 25mm (length of optical planes 206 and 207 + distance between optical planes 2 0 2 and 2 0 4). In addition, the beam splitter 3 0 1 has a height of 10 mm, and optical planes 202 and 204 The distance between the optical plane is 10mm, and the distance between the optical plane 206 and 207 is 10 mm. The beam splitter 3 0 1 is made of glass or plastic that can penetrate light. In this example, the beam splitter 3 0 1 is It is composed of BK 7 (refractive index of 1.5) made of glass material. Similar to the beam splitter 201 in FIG. 21, a first light separation film (first light separation surface) 2 0 3 is formed on a part of the optical plane 2 0 2, A second light separation film (second light separation surface) 2 0 5 is formed on a part of the optical plane 2 0 4. The first light separation film 2 0 3 and the second light separation film 2 0 The positional relationship, reflectance, and transmittance of 5 are all the same as the first light separation film 2 0 3 and the second light separation film 2 0 5 formed by the spectroscope 2 01. As shown in FIG. 25, the light beam B 2 1 is also incident on the beam splitter 3 0 1 obliquely. The reflected light R 2 1, R 2 2, R 2 3 and the transmitted light T 2 1, T 2 2 are generated in the same manner as in the case of the beam splitter 2 0 1 described with reference to FIG. 2. The light ray T 2 2 is incident on the optical plane 206, passes through the beam splitter 301 again as the light ray T23, and exits from the optical plane 207 as the light ray T 2 4. The deviation amount 5 'of the incident light ray B 2 1 from the light ray T 2 4 becomes zero (0). Next, the reason why the deviation amount 6 'becomes zero (0) will be described with reference to Figs. Further, the distance in the x-axis direction of the plane 2 0 6 of the incident point (origin point) 0 on the first light separation plane 2 0 3 and the optical plane 28 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 ( The distance along the plane 2 0 2 and 2 0 4) is set to c ° The light ray T 2 2 and the normal to the second light separation plane 2 0 5 form an angle of 4 5 °, and because the point A (-dtan0, -d), so the formula of the straight line of the light ray T22 becomes: y ^ x + dCtani1 — 1) (12) Next, the formula of the straight line including the optical plane 206 becomes: x = -c (13) The optical plane 206 and the optical plane The interval of 207 is the same as that of the optical plane 202 and the optical plane 204, and both are d. Therefore, the straight line formula including the optical plane 207 becomes: x =-(c + d) (14) Therefore, the light ray T 2 2 and the optical The coordinates of the intersection point E of the plane 2 0 6 are E (-c, d (tan0 — 1)-c) from the expressions (1 2) and (13). In addition, since the light ray T23 forms an angle 0 with the normal of the optical plane 2 0 6, the slope of the straight line formula including the light ray T 2 3 becomes tan0. At the same time, the straight line passes through the point E (-c, d (tan 0 — 1)-c), so the formula of the straight line is: y = ta η θ · x + (c + d) (tan θ — 1) (15) The coordinates of the intersection point F of the line including the light ray T 2 3 and the optical plane 2 0 7 become F (-(c + d),-(c + d)) from equations (14) and (15). Here, the formula of the straight line including the incident light B21 becomes: y = X (16) If the coordinates of the intersection F ′ of the incident light B 2 1 and the optical plane 2 0 7 are obtained from the formulas (1 4) and (1 6), , It becomes F '(-(c + d),-(c + d)). That is, F is consistent with 29 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 F '. In addition, because point F is also the exit point of the light T 2 4, it is known that the incident light B 2 1 and the outgoing light T 2 4 are on the same straight line. Based on the above, in order to locate the incident light B21 and the outgoing light T24 on the phase, not only does the interval between the optical planes 2 06 and 2 7 and the interval between the optical plane 2 0 4 make the optical planes 2 0 6 and 2 It is necessary for 0 7 and optics 4 and 2 4 to be arranged perpendicular to each other, and it is necessary to make the distance from the incident point to the optical plane 2 6 in the X-axis direction more than X from the incident axis) to the exit point (A). The distance in the axial direction is necessary. In order to penetrate the light T22-once it emerges from the optical plane 204, it is necessary to re-opt the optical plane 206. That is, it is necessary to have the following formula. dtan0 < c (17) In this way, it is necessary to set the distance between the incident point on the first light separation film 203 and the direction of the light 206 parallel to the optical planes 202 and 204 to be zero. Therefore, the beam splitter 3 0 1 may be made so that the distance between the optical ear and the first light separation film 2 0 3 parallel to the optical plane 2 0 2 and 2 0 4 is larger than d t a η 0. For example, in FIG. 25, the distance between the surface 206 and the center of the first optical separation film 203 in the left-right direction may be made larger than d t a η 0 in the left-right direction. More preferably, the distance between the learning plane 2 0 6 and the left end portion of the first optical separation film 2 0 3 (the end portion on the light side 2 ◦ 6) is made larger than d t a η 0. In this way, the outgoing light can be formed on the same line as the incident light, which is conducive to the horizontal and vertical lines drawn by the laser daylight device. Next, the 312th / Invention Specification (Supplement) / 92-11 / 92123417 of this embodiment will be described with reference to FIG. 27 and FIG. 28. Therefore, it can be the same as a straight plane 202 ^ plane 202 0 (y axis) point 0 (y this It is the beam splitter 4 Ο 1 that can change the optical race plane by 2 when the incident plane is optically flat with respect to the direction of the dta η L plane 2 0 6 30 1238242. The beam splitter 4 〇 1 is characterized by the light R 2 A part of the reflected light of 1 can return on the same optical path as the light R21, and then enters the beam splitter 4 0 1. As shown in FIG. 7, the beam splitter 4 0 1 is composed of two rectangular parallelepipeds, which is L The glyph. In other words, the beam splitter 4 0 1 is the same as the beam splitter 2 0 1 of FIG. 21, and has optical planes 2 2 and 2 0 4 as two sides facing each other. The optical planes 202 and 204 are opposite each other. Parallel. The beam splitter 401 also has optical planes 2 08 and 2 9 as two opposite sides. The optical planes 2 8 and 209 are parallel to each other and intersect perpendicularly to the optical planes 202 and 204. Optical plane The interval between 2 0 2, 2 0 4 is the same as the interval between the optical planes 2 08, 2 0. In this example, the beam splitter 4 0 1 The size of the L shape is 30 mm (the length of the optical planes 202 and 204) x 25 mm (the length of the optical planes 208 and 209 + the distance between the optical planes 2 0 2 and 2 0 4). In addition, the height of the beam splitter 4 0 1 It is 10mm, the distance between the optical planes 202 and 204 is 10 mm, and the distance between the optical planes 208 and 209 is 10 mm. The beam splitter 4 0 1 is made of glass or plastic that can transmit light. In this example, the beam splitter 40 1 is made of BK 7 (refractive index 1.5) which is a glass material. It is the same as the beam splitter 2 01 in FIG. 2 and is formed on a part of the optical plane 202 The first light separation film (first light separation surface) 2 0 3, and the second light separation film (second light separation surface) 2 0 5 is formed on a part of the optical plane 2 0 4. The first light separation film 2 0 3 and The positional relationship, reflectance, and transmittance of the second optical separation film 2 05 are the same as those of the first optical separation film 2 0 3 and the second optical separation film 2 0 5 formed by the beam splitter 2 01. 31 312 / Specification of the Invention (Supplement) / 92-11 / 92123417 1238242 As shown in Figure 2-8, the light beam B 2 1 is also incident on the beam splitter 4 Ο 1. The reflected light R 2 1, R 2 2, R 2 3 Light transmission Τ 2 1 Τ system 22 described with reference to FIG. 22 Description splitter generates the same manner as in the case of 2 Ο 1. The light ray R 2 1 is a rod lens (not shown) provided on the extension line of the light ray R 2 1. Several% of the light that is perpendicularly incident on the rod lens is reflected and returns as the light ray R 2 4 on the same light path as the light ray R 2 1. The light R 2 4 is incident on the first light separation surface 2 0 3 and forms an angle of 0 = 2 8 ° with the normal and passes through the interior of the beam splitter 4 0 1 (light T 2 5), and then temporarily from the optical plane 2 0 4 The light beam T26 is emitted at an angle of 45 °. After that, after entering the optical plane 208 and passing through the inside of the beam splitter 401 (ray T 2 7) again, it exits from the optical plane 209 at an angle of 45 ° as light T 2 8. Here, as with the beam splitter 3 0 1 described with reference to FIG. 26, if the interval between the optical planes 2 0 8 and 2 0 9 coincides with the interval between the optical planes 2 0 2 and 2 0 4, the optical planes 208 and 209 and the optical plane The planes 202 and 204 are perpendicular to each other, and the distance between the optical plane 2 0 8 and the first light separation film 2 0 3 in a direction parallel to the optical plane 2 0 2 and 2 0 4 is greater than dta η 0, and the light ray T 2 8 That is, it is located on the same straight line as the reflected light R24. This is because the penetrating light T28-once emitted from the optical plane 204, is necessary to be incident on the optical plane 208 again. In this modification, two light rays R 2 1 and T 2 8 traveling along a light path perpendicular to the light beam B 2 1 can be formed, and therefore, it is more advantageous in the case of a laser line drawing device, for example. Drawing of horizontal and vertical lines. Next, a spectroscope 501 according to a third modified example of this embodiment will be described with reference to Figs. 29 and 30. The beam splitter 5 0 1 has a structure in which the beam splitter 3 0 1 of FIG. 2 and 32 312 / Invention Specification (Supplement) / 92-11 / 921234 Π 1238242 are combined with the beam splitter 401 of FIG. It is on the same straight line as the incident light B 21, and the outgoing light T 2 8 is on the same straight line as the reflected light R 2 4. As shown in Figure 29, the beam splitter 501 is a combination of three rectangular parallelepipeds. That is, in addition to the optical planes 202 and 204, the beam splitter 501 has the same optical planes 206 and 207 as the beam splitter 301, and has the optical planes 208 and 209 the same as the beam splitter 401. In addition, the beam splitter 501 is made of glass or plastic that can transmit light. In this example, B K 7 (a refractive index of 1.5), which is a glass material, is used. In addition, similar to the beam splitters 301 and 401, a first light separation film (first light separation surface) 2 0 3 is formed on a part of the optical plane 202, and a second light separation film (second light is formed on a part of the optical plane 2 0 4). Light separation surface) 2 0 5. Optical plane 202, 204, 206, 207, 208, 209 and the positional relationship of the first and second optical separation films 2 0 3, 2 0 5 or the reflectance of the first and second optical separation films 2 0 3, 205 and The transmittance is the same as that of the beam splitters 301 and 401. The distances between the optical planes 2 0, 2 0 4 and the optical planes 2 06, 2 7 and the optical planes 2 0 8 and 2 0 9 are all the same (for example, 10 mm). As shown in FIG. 30, the light T 2 2 penetrating the second light separation film 2 05 is incident on the optical plane 206, and then passes through the inside of the beam splitter 501 (light T23), and the optical plane 2 7 is used as the light T 2 4 shots. In addition, the light R 2 4 which is a reflected light belonging to the light ray R 2 1 is incident on the first light separation film 2 0 3, forms an angle of 0 = 28 ° with the normal, and then passes through the inside of the beam splitter 501 (light T25) and The optical plane 204 is temporarily emitted at an angle of 45 ° and becomes a light ray T26. The light T 2 6 enters the optical plane 2 0 8 and passes through the optical plane 2 as the light T 2 7 and then passes through 33 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 Ο 9 is emitted at an angle of 45 ° to become light T 2 8. Thereby, the light T 2 4 and the incident light B 2 1 can be positioned on the same straight line, and the reflected light R 2 4 and the light T 2 8 can be positioned on the same straight line. Next, a mode in which the spectroscope 2 0 1 (see FIG. 2) of this embodiment is mounted on a laser daylight device will be described with reference to FIGS. 31 and 32. As shown in FIG. 31, the laser daylight device 2 10 is basically composed of an optical system 2 1 that generates linear light, a supporting mechanism portion 2 1 5 for horizontally holding the optical system 2 1 4, and a cover optical system. 2 1 4 and the housing 2 2 6 of the support mechanism section 2 1 5. Since the support mechanism section 2 1 5 has the same configuration as the support mechanism section 5 described in the first embodiment, description thereof will be omitted. FIG. 32 is a schematic side view showing the linear light generating optical system 2 1 4. The linear light generating optical system 2 1 4 includes a semiconductor laser 2 1 6, a collimator lens 217, a beam splitter 201, and three rod lenses 221, 222, and 223. The semiconductor laser 2 1 6 is arranged so that it is horizontal. The laser beam emitted from the semiconductor laser 2 1 6 is transformed by a collimating lens 2 1 7 into a collimated light (parallel light) B 2 1 having a circular beam cross-sectional shape. In this example, the optical diameter of the collimated light B 2 1 is set to 2 mm. In addition, the spectroscope 201 is arranged so that the normal of its optical plane 202 and the optical axis of the semiconductor laser 2116 form an angle of 45 °. The distance between the optical planes 202 and 204 is 10 mm, and the beam splitter has a length of 20 mm and a height of 10 mm. The first light separation film 203 reflects 33% of the incident light and penetrates 67% of the light. Accordingly, the incident light B 2 1 is reflected by 33% of the light from the first light separation film 2 0 3 and becomes the light R 2 1. The remaining 67% of the light passes through T 2 1 and passes through the inside of the beam splitter 2 0 1. In the second light separation film 2 0 5 34 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242, 50% of the light in the incident light is reflected, and 50% of the light is transmitted. Therefore, 50% of T 2 1 in the second light separation film 205 is reflected to become reflected light R 2 2 and passes through the inside of the beam splitter 2 0 1 and exits from the optical plane 2 0 2 (ray R twenty three ). The remaining 50% of the light in T 2 1 passes through the second light separation film 2 5 and becomes light T 2 2. The light rays R 2 1 and R 2 3 are emitted at an angle of 45 ° with respect to the normal of the optical plane 2 0 2. Therefore, the emission directions of the light rays R 2 1 and R 2 3 become vertical directions. The interval w between the light rays R 2 1 and R 2 3 becomes as follows from the formula (1 1): w = 2 · 10 (l + tan228 °) 1/2 · si η 2 8 ° cos 4 5 ° = 7.5 mm If 0 = 2 8 ° is substituted into the formula (9), the deviation δ between the light B 2 1 and the light T 2 2 is obtained, that is: 5 = 1 0 (1 + ta η 2 2 8 °) 丨 / 2 · si η (4 5 0 — 2 8 °): 3 · 3 mm rod lenses 2 2 1 and 2 2 2 are arranged on the light path of two light rays R 2 1 and R 2 3 which are emitted in the vertical direction, and divide the light rays R 2 1 and R 2 3 are converted into linear light. The rod lens 2 2 1 disposed on the light path of the light ray R 2 1 has an axial direction which is horizontal and parallel to the emission direction of the semiconductor laser 2 1 6. In addition, the rod lens 2 2 2 arranged on the light path of the light ray R 2 3 has its axial direction arranged horizontally and in a direction perpendicular to the rod lens 2 2 1. Accordingly, the two vertical line lights emitted from the rod lenses 2 2 1 and 2 2 2 cross each other. The rod lens 2 2 3 is arranged on the light path of the light ray T 2 2. The rod lenses 2 2 3 are arranged so that their axial directions are along the vertical direction. Therefore, the linear light generated from the rod lens 2 2 3 becomes horizontal linear light. Here, because the deviation 5 between the light B 2 1 and the light T 2 2 is 3.3 mm, the light T 2 2 is from 35 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242 semiconductor laser Device 2 1 6 and a position below 3.3 m Hi. In addition, if the spectroscope 2 0 1 is replaced by the spectroscope 3 0 1 shown in the first modified example (FIG. 2 5), the deviation 5 between the light beam B 2 1 and the light beam T 2 2 can be set to zero. (0). This allows the height of the light beam emitted from the semiconductor laser 2 16 to be the same as the light emitted from the horizontal line. In addition, a part of the incident light that is perpendicularly incident on the incident surface of the rod lens 2 2 1 of the light ray R 2 1 becomes the reflected light R 2 4 and returns to the same optical path as the light ray R 2 1. Fig. 33 is a side view showing a line light generating optical system 2 2 4 equipped with a beam splitter 4 0 1 (Fig. 2 8) shown in the second modification instead of the beam splitter 2 01. In the linear light generating optical system 2 2 4, the light beam R 2 4 and the light beam T 2 8 are arranged on the same straight line by the beam splitter 4 0 1. That is, the intersection of the cross-line light formed by the rod lenses 2 2 1 and 2 2 2 and the light ray T 2 8 are arranged on the same axis. Here, if the line light generating optical system 2 1 4 is replaced by the line light generating optical system 2 1 4 (FIG. 3 2) and the laser daylight device 2 1 0 of FIG. 3 is provided, the light ray T 2 can be obtained. 8 In the original state, the light is emitted toward the vertical downward direction of the laser daylight device 2 1 0, that is, the so-called ground ink dot light. Similarly, in the linear light generating optical system 2 1 4 of FIG. 3, if the spectroscope 5 0 1 (FIG. 3) shown in the third modification is mounted instead of the spectroscope 2 01, a semiconductor lightning can be made. The height of the light beam emitted by the emitter 2 16 is the same as that of the linear light, and a laser daylight device capable of emitting ground dot light can be easily obtained. In addition, by using an optical element such as a mirror, the exit direction of the light rays R 2 1 or R23 can be changed. As described above, if the beam splitter 2 0 1, 3 0 1, 4 0 1 or 5 0 1 of this embodiment is used, a laser beam can be easily separated into a plurality of lasers 36 312 / Invention Specification (Supplementary Document) ) / 92-11 / 92123417 1238242 beam. In addition, by using a beam splitter 2 0 1, 3 0 1, 4 0 1 or 5 0 1 on the optical system of the laser daylight device 2 1 0, a plurality of laser beams can be easily obtained from one light source. Therefore, it is possible to generate a plurality of light rays for drawing lines at a low cost. As a result, a laser line device for irradiating a plurality of lines of light can be provided at a low price. The beam splitter, linear light generating optical system, multi-beam generator, and laser daylight device of the present invention are not limited to the above-mentioned embodiments, and various changes and improvements can be made within the scope described in the scope of the patent application of the present invention. For example, in the above-mentioned first and third embodiments, a dielectric thin film is used as the light separation film, but a metal thin film such as Cr or A1 may be used. Similar to the first embodiment, a light separation film 2 may be formed on the side surfaces 1 0 3 a and 1 0 3 b of the triangular ridge 1 0 3 of the second embodiment, and the reflected light R1 and the transmitted light T 2 may be formed. And the ratio of the reflected light R 2 and the transmitted light T 1 are adjusted to arbitrary values. The size of the spectroscope is not limited to the values described in the embodiment, and may be set to any value depending on the application. In FIG. 14, the reflecting mirror 104 is arranged only on the light path of the penetrating light T 2. However, similarly, the reflecting mirror may be provided on the light path of the light T 2, R 1, R 2 and the like. And arbitrarily change these light paths. [Brief Description of the Drawings] FIG. 1 is a perspective view showing a beam splitter according to a first embodiment of the present invention. FIG. 2 is a top view of the optical splitter of FIG. 1. FIG. FIG. 3 is an explanatory diagram showing a principle of splitting a light beam by the spectroscope of FIG. 1. FIG. 312 / Invention Specification (Supplement) / 92-11 / 92123417 37 1238242 Fig. 4 is an explanatory view showing a method of manufacturing the spectroscope shown in Fig. 1 and a step of forming a light separation film. Fig. 5 is an explanatory view showing a method of manufacturing the spectroscope of Fig. 1, showing a step of joining three triangular columns. FIG. 6 is an explanatory diagram showing an emission direction of light incident on the triangular ridge. Fig. 7 is an explanatory diagram for explaining the exit direction of light incident on the triangular triangle in more detail. Fig. 8 is an explanatory view showing a direction of emission of light partially incident on the triangular prism. Fig. 9 is a side view showing a multi-beam generator according to the first embodiment of the present invention. FIG. 10 is a top view showing the multi-beam generator of FIG. 9. Fig. 11 is a side view showing a laser daylight device according to a first embodiment of the present invention. FIG. 12 is a side view showing a line light generating optical system provided in the laser daylight device of FIG. 11. FIG. FIG. 13 is a top view of the line light generating optical system of FIG. 12. Fig. 14 is an explanatory view showing a linear light generating optical system according to a second embodiment of the present invention. FIG. 15 is an explanatory diagram showing an exit direction of light incident on the triangular ridge of FIG. 14. FIG. 16 is an explanatory diagram showing a modification example of the line light generating optical system of FIG. 14. Fig. 17 (a) is an explanatory diagram showing the relationship between the rod lens and the direction of the cross section of the incident beam 38 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242. Fig. 17 (b) is an explanatory view showing another relationship between the rod lens and the orientation of the cross section of the incident light beam. FIG. 17 (c) is an explanatory diagram showing the orientation of the double ridge. FIG. 18 is an explanatory diagram showing a modification example of the linear light generating optical system of FIG. 16. FIG. Fig. 19 is a side view showing a laser daylight device according to a second embodiment of the present invention. FIG. 20 is an explanatory diagram showing an optical element mounted on the laser line drawing device of FIG. 19. FIG. Fig. 21 is a perspective view showing a spectroscope according to a third embodiment of the present invention. Fig. 22 is an explanatory diagram showing a principle of splitting a light beam by the spectroscope of Fig. 21; Fig. 23 is an explanatory diagram explaining the principle of splitting the light beam by the beam splitter of Fig. 21 in more detail. Fig. 24 is a perspective view showing a spectroscope according to a first modification of the third embodiment. Fig. 25 is an explanatory diagram showing the principle of splitting a light beam by the beam splitter of Fig. 24. Fig. 26 is an explanatory diagram explaining the principle of splitting the light beam by the beam splitter of Fig. 24 in more detail. Fig. 27 is a perspective view showing a spectroscope according to a second modification of the third embodiment. Fig. 28 is an illustration showing the principle of splitting the light beam by the spectroscope of Fig. 27. 39 312 / Invention Specification (Supplement) / 92-11 / 92123417 1238242. Fig. 29 is a perspective view showing a spectroscope according to a third modification of the third embodiment. Fig. 30 is an explanatory diagram showing a principle of splitting a light beam by the spectroscope of Fig. 29. Fig. 31 is a side view showing a laser daylight device equipped with a spectroscope according to a third embodiment of the present invention. Fig. 32 is a side view showing a line light generating optical system using the beam splitter of Fig. 21; Fig. 33 is a side view showing a line light generating optical system using the beam splitter of Fig. 28. (Explanation of component symbols) B width B1 beam B2 beam B3 penetrating beam B5 beam B6 beam B7 beam B8 beam B9 beam B1 0 beam B1 1 beam B1 2 reflected light 312 / Instruction Manual (Supplement) / 92-11 / 92123417 40 1238242 B1 3 transmitted light B1 4 light beam B1 5 light beam B2 1 incident light L long axis L1 vertical line light L2 vertical line light L3 vertical line light L4 horizontal line light N rod lens R1 reflected light R2 reflected light R21 separated light R23 separated light T1 penetrating light T2 penetrating light T22 separated light T24 outgoing light T28 outgoing light W interval δ deviation amount 1 beam splitter la triangular column lb two-corner 312 / Invention Manual (Supplement) / 92-11 / 92123417 41 1238242 1 c two-corner 2 Light separation film 3 Triangular ridge 4 Linear light generating optics 5 Support mechanism 6 Semiconductor laser 7 Collimator lens 8 Rod lens 9 Rod lens 10 Rod lens 11 Rod lens 12 Laser daylight device 20a Side 20b side 20c side 22 top angle 23 top angle 24 top angle 30 top angle 3 1 side 32 side 33 side 40 multi-beam generator 42 collimated light source 312 / invention manual (supplement) / 92-11 / 921234 Π 42 1238242 54 Housing 50 Support frame 5 1 Large ring 52 Small ring 53 Mounting table 10 0 Line light generating optics 10 1 Laser light source 10 1a Laser exit surface 1 02 Collimating lens 1 03 Triangular ridge 1 03a Side 1 03b Side 103c Side 1 03d Vertex 1 04 Reflector 105 Rod lens 106 Rod lens 1 07 Double 稜鏡 1 07a Side 1 07b Upper 107c Bottom 1 07d Incident surface 1 07e Exit surface 1 08 Anamorphic lens 312 / Instruction manual (Supplementary) ) / 92-11 / 92123417 43 1238242 1 09 Optical unit 110 Support mechanism 111 Laser daylighting 112 Housing 120 Line light generating light 140 Line light generating light 20 1 Beam splitter 202 Optical plane 203 First light separation 20 4 Optical plane 205 Second light separation 206 Optical plane 207 Optical plane 208 Optical plane 209 Optical plane 214 Line light generates light 2 16 Semiconductor laser 2 17 Collimation lens 22 1 Rod lens 222 Rod lens 223 Rod lens 224 line Light produces light 30 1 Beamsplitter 40 1 Beamsplitter 312 / Invention Manual (Supplements) / 92-11 / 92123417 Faculty of Science Faculty Film (first light separation surface) Thin film (second light separation surface) Department 44 1238242 50 1 Beamsplitter

312 / Invention Specification (Supplement) / 92-11 / 92123417 45

Claims (1)

94 · 4 · -4 Replacement of this 1238242 Scope of patent application: 1. A multi-beam generator including: a light source for generating a light beam; a beam splitter having at least two faces for incident penetration of the light beam A transparent body, a first light separation portion formed on a first surface of the at least two surfaces, and a second light separation portion formed on a second surface of the at least two surfaces; and A linear light generating optical element that obtains linear light from a light beam separated by at least one of the first light separating section and the second light separating section. 2. The multi-beam generator according to item 1 in the scope of the patent application, wherein the beam splitter is configured to separate one incident light generated from the light source into one light reflected by the first light separation unit, and the second light One transmitted light composed of a light reflected by the separation section and a light transmitted through the first light separation section and a light transmitted through the second light separation section; The linear light generating optical element receives the reflected light reflected by the first light separating section, the reflected light reflected by the second light separating section, and the light passing through the first light separating section and the light. At least one of the penetrating light composed of the light of the second light separation section is converted into linear light. 3. The multi-beam generator according to item 2 of the scope of patent application, wherein the light penetrating system is formed as a transparent optical element having a triangular prism shape with 3 sides; the first light is formed on 2 sides of the 3 sides of the triangle post. And a second light separation unit. 4. The multi-beam generator according to item 3 of the scope of patent application, wherein the light 46 326 \ total file \ 92 \ 92123417 \ 92123417 (replacement) _ 1 1238242 is based on the shape of the bottom surface of the isosceles triangle with a slightly right angle Triangular prism. 5. The multi-beam generator according to item 2 of the scope of patent application, wherein the light penetrating body includes a first optical element, a second optical element, and a third optical prism each having a transparent triangular prism with a bottom surface shape of a substantially right-angled isosceles triangle. Optical element; the bottom surface shape of the triangular column that is a side surface of the first optical element includes two sides of the triangular column that forms the two sides of the apex angle, and is connected to the triangular column that is a side surface of the second optical element and a third optical element The shape of the bottom surface includes a side surface of a triangular pillar with a side facing the top corner; and the first light separation portion and the second light separation portion are formed on the two side surfaces of the joint. 6. The multi-beam generator according to item 2 of the patent application scope, wherein the first light separating section and the second light separating section have a reflectance of about 67%. 7. A kind of linear light generating optical system, which includes: a light source, which generates a light beam; a collimating lens, which converts the outgoing light from the light source into collimated light; a triangular ridge, which forms a triangular column with 3 sides Shape, and forming a triangle ridge of the first light separation part and the second light separation part on 2 sides of the 3 sides of the triangular column, and receiving the collimated light at the vertex angle formed by the 2 sides, using The collimated light is separated into four light beams; and a linear light generating optical element is arranged on at least one light path among the light paths of the light beams emitted from the triangle beam, and converts the light beams into linear light. 8. The line-light generating optical system according to item 7 of the scope of patent application, wherein a reflector for reflecting the light beams exiting the triangle-shaped ridge is further provided between the triangle-shaped ridge and the line-light generating optical element, In order to change the light path of the beam 47 32 6 \ total file \ 92 \ 92123417 \ 92123417 (replace) -1 1238242 diameter. 9. The linear light generating optical system according to item 7 of the scope of patent application, wherein the light source has a laser exit surface for emitting laser light; the vertex angle of the triangular ridge and the laser exit surface face each other. 10. The linear light generating optical system according to item 7 of the patent application scope, further comprising an optical element that sets a beam shape of the collimated light from the collimating lens to a substantially circular shape. 1 1. The linear light generating optical system according to item 10 of the patent application scope, wherein the optical element is composed of an anamorphic lens that changes the circularity of the collimated light. 12. According to the line light generating optical system of the seventh item of the patent application scope, wherein a double prism is further provided between the triangular beam and the line light generating optical element to rotate the beam shape of the light beam. 1 3. The linear light generating optical system according to item 7 of the scope of patent application, wherein the first light separation unit and the second light separation unit are each composed of a light separation film. 1 4. A laser daylight device, comprising: a laser that generates a light beam; and a beam splitter that is formed by a light penetrating body having at least two faces to enter the light beam and formed on the at least two The first light separation portion of the first surface among the surfaces and the second light separation portion formed on the second surface of the at least two surfaces; the linear light generating optical element is separated from the first light The light beam separated by at least one of the second light separation unit and the second light separation unit obtains linear light; and a support unit that supports the laser, the beam splitter, and the line light generating optics 48 326 \ 总 段 \ 92 \ 92123417 \ 92123417 (Replace) -1 1238242 components. 15. The laser daylight device according to item 14 of the scope of patent application, wherein the beam splitter is configured to separate one incident light generated from the laser into one reflected by the first optical separation unit. 1 penetrating light consisting of light, a light reflected by the second light separating portion, and a light penetrating the first light separating portion and a light penetrating any one of the second light separating portion; The linear light generating optical element receives the reflected light reflected by the first light separation section, the reflected light reflected by the second light separation section, and the light that has passed through the first light separation section and the first light separation section. At least one of the penetrating light composed of the light in the 2 light separation section is converted into linear light. 16. The laser daylight device according to item 14 of the scope of patent application, wherein the reflected light at the first light separation section, the reflected light at the second light separation section, the first light separation section, and the second In at least one of the passing paths of the light-separating part, other light-separating elements are arranged to generate four or more light beams; the line-light generating optical element receives at least one of the four or more light beams, And converted to linear light. 1 7. The laser daylight device according to item 15 of the scope of the patent application, wherein the light penetrating system is formed as a transparent optical element having a triangular column shape with 3 sides; 2 sides of the 3 sides of the triangular column are formed The first light separation section and the second light separation section. 18. The laser daylight device according to item 17 of the scope of patent application, wherein the optical element is a triangular column whose bottom surface shape is a slightly right-angled isosceles triangle. 19. The laser daylight device according to item 15 of the scope of patent application, wherein the 326 \ total file \ 92 \ 92123417 \ 92123417 (replacement) -1 49 1238242 light penetrating bodies each have an isosceles at a slightly right angle. The first optical element, the second optical element, and the third optical element of the transparent triangular prism with a triangular bottom surface shape; the bottom surface shape of the triangular column, which is a side surface of the first optical element, includes the two sides of the triangular prism forming the two sides of the apex angle Is the side surface of the triangular prism that includes the side facing the apex angle in the bottom surface shape of the triangular prism that is attached to the side surfaces of the second optical element and the third optical element; the first optical separation is formed on the two side surfaces of the junction Section and the second light separation section. 20. The laser daylight device according to item 15 of the scope of patent application, wherein the first light separation section and the second light separation section have a reflectance of about 67%. 2 1. The laser daylight device according to item 15 of the scope of the patent application, wherein between the laser and the beam splitter, a collimator for converting the outgoing light from the laser to collimated light is also provided. Straight lens; the light transmission system is composed of triangular prisms having a triangular prism shape with 3 sides; the triangular prisms form the first light separation part and the second light on 2 sides of the 3 sides of the triangular column The separation unit receives the collimated light at an apex angle composed of the two side surfaces, and cooperates with the first light separation unit and the second light separation unit to separate the collimated light into four light beams. 2 2. The laser daylight device according to item 21 of the scope of patent application, wherein the triangular beam emits a first light beam and a second light beam from a side opposite to the vertex angle, and is separated from the first light. 3 and 4 beams emitted from the 2 sides formed by the second light separation part and the second light separation part; 50 326 \ total file \ 92 \ 92123417 \ 92123417 (replacement) -1 1238242 and having: On the optical path, the first light beam is converted into a first line light generating optical element for line light; and on the optical path of the second light beam, the second light beam is converted into a second line light for linear light. Create an optical element. 2 3. The laser line drawing device according to item 22 of the scope of patent application, wherein the first light separation part and the second light separation part are emitted in a direction slightly perpendicular to the incident direction of the collimated light, and emit The third light beam and the fourth light beam. 2 4. The laser daylight device according to item 22 of the scope of patent application, wherein an optical path changing optical element is arranged on at least one of the light paths of the first light beam and the second light beam, and the traveling direction of the light becomes horizontal. The way to change the light path. 2 5. The laser daylight device according to item 24 of the scope of patent application, wherein the optical path changing optical element is disposed on the optical path of the first light beam; the first linear light generating optical element is disposed on the The light path changes the rear stage of the optical element so as to generate horizontal line light from the first light beam whose traveling direction becomes horizontal. The second line light generating optical element generates vertical line light from the second light beam. 2 6. The laser daylight device according to item 22 of the scope of patent application, wherein at least one of the light path of the first light beam and the second light beam between the triangular beam and the line light generating optical element A double cymbal is provided to rotate the shape of at least one of the first light beam and the second light beam. 27. The laser daylight device according to item 22 of the scope of patent application, wherein an optical element for making the light beam into a substantially circular shape is provided on a light path between the collimator lens and the triangular ridge. 51 326 \ Total file \ 92 \ 92123417 \ 92123417 (replace) -1 1238242 2 8. As the laser daylight device of item 21 of the patent application, wherein at least 1 of the beams emitted from the triangular prism is used A mirror is set on the light path of the strip to change the light path of the light beam. 2 9. The laser daylight device according to item 21 of the patent application scope, wherein the laser device has a laser exit surface from which a laser beam is emitted; and the vertex angle of the triangular ridge is in line with the laser exit surface. Face state. 30. The laser daylight device according to item 21 of the scope of patent application, further comprising an optical element that sets a beam shape of the collimated light from the collimating lens to a circular shape. 31. The laser daylight device according to item 30 of the patent application scope, wherein the optical element is composed of an anamorphic lens that changes the circularity of the collimated light. 32. The laser daylight device according to item 21 of the scope of patent application, wherein a double chirp is provided on the light path of at least one of the four beams emitted from the triangular chirp, so that at least one The beam shape of the beam is rotated. 3 3. The laser daylight device according to item 14 of the scope of patent application, wherein the first surface and the second surface are parallel to each other; the first light separation unit separates the one incident light into the reflected light and Transmitted light; the second light separation unit is configured to further separate the transmitted light into reflected light and transmitted light. 34. If the laser daylight device according to item 33 of the scope of patent application, wherein the one incident light is incident at an angle of incidence of approximately 45 ° with respect to the first light separation section, the first The refraction angle at the time of incidence of the light separation part is set to 0, and when the interval between the first surface and the second surface is set to d, 52 3 26 \ total file \ 92 \ 92123417 \ 92123417 (replace) -1 1238242 belongs to this The first light separation unit and the second light separation unit are formed such that the distance in the direction parallel to the first surface and the second surface becomes dtan0, and the first light separation unit and the second light separation unit are formed. 3 5. The laser daylight device according to item 33 of the scope of patent application, wherein the light penetrating body further includes a third surface and a fourth surface for sequentially penetrating the penetrating light of the second light separation section. The third surface and the fourth surface are parallel to each other and intersect perpendicularly to the first surface and the second surface. 36. If the laser daylight device according to item 35 of the scope of patent application, wherein the one incident light is incident at an angle of incidence of approximately 45 ° with respect to the first light separation section, the first When the refraction angle at the time of incidence of the light separation section is set to 0 and the distance between the first and second surfaces is set to d, the first surface and the distance belonging to the distance between the first light separation section and the third surface The distance in the parallel direction of the second surface is larger than dta η 0. 37. The laser daylight device according to item 35 of the scope of patent application, wherein the interval between the third surface and the fourth surface is substantially equal to the interval between the first surface and the second surface, so that The light path of the light transmitted through the fourth surface is aligned on the extension line of the light path of the incident light. 38. The laser daylight device according to item 35 of the scope of patent application, wherein the light penetrating body further includes light reflected from the first reflector by the designated reflector in order to pass through. The fifth and sixth faces are transparent; the fifth and sixth faces are parallel to each other and perpendicularly intersect the first and second faces. 39. If the laser daylight device of item 38 of the scope of application for a patent, wherein the interval between the 5th surface and the 6th surface of the 53 3 26 \ total file \ 92 \ 92123417 \ 92123417 (replacement) -1 1238242, The distance between the first surface and the second surface is substantially the same, so that the light path of the light passing through the sixth surface is aligned on the extension line of the light path of the light reflected by the predetermined reflector. 40. The laser line drawing device according to item 14 of the scope of patent application, wherein the first light separation part and the second light separation part are each composed of a light separation film. 54 326 \ Total file \ 92 \ 92123417 \ 92123417 (Replace) -1 1238242 Pick up, Picture: 94 · 4 · -4 Replace page 326V total file \ 92 \ 92123417 \ 92123417 (replace) -1 55