TW201344095A - Projecting system with fine adjustment of irradiation light shape - Google Patents

Abstract

The present invention relates to a projecting system with fine adjustment of irradiation light shape, comprises a collimating unit and a variant shape unit. Wherein, the collimating unit can project a parallel beam with a width and a height in the light traveling direction to the variant shape unit. The variant shape unit comprises more than one lens with a projecting angle corresponding to the curvature radius and aperture, therefore a projecting beam can be projected according to the projecting angle and focused at an intersection by the variant shape unit. The projecting angle can be deviated so as to skew the projecting beam by rotating the lens of variant shape unit by a deviation angle with the light traveling direction as the optic axis, and the irradiation light shape of a target zone at the outside of the intersection of the beam can thus produce a corresponding deviation angle. The user can adjust the deviation angle to change the irradiation light shape as needed to thereby achieve the purpose of fine adjustment of the irradiation shape.

Description

Fine-tuning projection system for illumination

The present invention relates to a projection system, and more particularly to a projection system that can finely illuminate an illumination shape.

The history of lamps is quite long, and there are many types and applications in the current market, such as headlights for vehicles, flashlights for emergency use or lighting lamps for daily use. Some of them are used to attract people's attention. The class often illuminates the main character with a spotlight in the stage performance or illuminates the building with a projection lamp as a decoration during the night.

Referring to FIG. 30, in the prior art, the projection lamp includes a collimation system 90 and a light source 91. The collimation system 90 is a convex lens, and the light source 91 is disposed at a focus of the convex lens, so the light source When the convex lens is irradiated in a scattering manner, by the optical principle, the collimating system 90 outputs a parallel light as shown on the right side of FIG. 30, which is a parallel light beam output by a general projection lamp; wherein the light source 91 is a circular light source, the parallel light after the collimation system 90 is irradiated to a target area, the light shape is circular, and if the light source is in one shape, the light shape of the target area is as shown in FIG. Show the square shape.

The above-mentioned projection lamp is irradiated to the light shape of the target area, and some of the manufacturers increase the decorative effect, thereby attracting more people's attention, mainly by changing the illumination light shape through a light shielding sheet, and the light shielding sheet mainly has a light transmission hole. The light transmission hole is any shape required by the user, that is, the parallel light beam is projected to the target area through the light transmission hole of the light shielding sheet, and the light shape of the target area forms the shape of the light transmission hole, thus By changing the shape of the light transmission hole, the shape of the illumination can be arbitrarily changed.

Although the shape of the light-transmitting hole can be changed by changing the shape of the light-transmitting hole, it is necessary to prepare a light-transmitting sheet of various shapes of light-transmitting holes, and the light-shaped system cannot be fine-tuned, for a user who needs to finely adjust the light shape. In fact, it is necessary to seek a viable solution in view of the above problems.

In view of the above-mentioned shortcomings of the prior art, the main object of the present invention is to provide a projection system capable of finely adjusting an illumination shape, which is mainly to enable the projection system to adjust the projected light shape without using a light shielding sheet, thereby changing the shape of the light shape. .

The technical means adopted for achieving the above object is that the projection system includes: a collimating unit that projects a parallel beam and extends along a direction of light; a variogram unit including more than one lens The lens has a radius of curvature and a projection angle corresponding to an opening diameter, the projection angle corresponds to an intersection of the optical axis of the lens, and the lens is rotatable, and the variegated optical unit is After the parallel beam passes, a projection beam corresponding to the projection angle is generated, and the projection beam is formed with an illumination pattern in a target region outside the intersection, and the shape of the illumination pattern corresponds to a deflection angle of the lens; The projection system is constructed by projecting a parallel beam to the mutated light-shaped unit in a direction of light through a collimating unit, and the mutated light-shaped unit can project a projected beam according to a projection angle, and then linearly extend through the intersection to The target area in the distance allows the target area to display the illumination pattern, wherein the lens system of the variant light unit can be rotated by a deflection angle Therefore, the projection angle of the parallel beam can be correspondingly deflected, so that the projection beam is deformed, and the illumination shape is further deformed correspondingly, so that the deflection of the lens in the variant light unit can be finely adjusted according to the user's needs. The angle, in turn, achieves the purpose of changing the shape of the projected beam and illuminating the shape of the light.

Referring to FIG. 1 to FIG. 4, the projection system includes a collimating unit 10 and a variating light unit 20, wherein: the collimating unit 10 is as shown in FIG. 3 and FIG. There is a light source 11 and a convex lens 12, which is disposed on the optical axis of the convex lens 12 and scattered by the light source 11 to the convex lens 12, and the optical principle can be used to face the opposite direction of the convex lens 12 with respect to the light source 11. A parallel light beam P is formed in the shape of the light source 11. In the embodiment, the light source 11 has a rectangular shape (not shown), and the cross-sectional shape of the parallel light beam P perpendicular to the light traveling direction is also a rectangular shape. Therefore, the parallel light beam has a width and a height and extends in a light traveling direction, wherein the width direction and the height direction of the parallel light beam P are perpendicular to the light traveling direction.

Referring to FIG. 1 to FIG. 4 , the variogram unit 20 has one or more convex lenses 21 , and is disposed in the other direction of the collimating unit 10 opposite to the light source 11 . In the embodiment, the variant light unit 20 is used. The convex lens 21 is a cylindrical lens 21 having a first surface 211 and a second surface 212. The first surface 211 is a flat surface, and the opposite second surface 212 is a curved surface, and the curved surface has a curved surface. The radius of curvature R and an opening diameter D, and the ratio of the radius of curvature R and the diameter D of the opening may correspond to a projection angle, which may correspond to an intersection F of the curved surface, and a relative variability of the intersection F The unit 20 has a target area 30 in the opposite direction. Referring to FIG. 3, the variable light unit 20 obtains the parallel light beam P and projects a projection beam L to a projection angle. The target area 30, wherein the projection beam L is focused at the intersection F, and then linearly extends to the right side of the figure to the target area 30. The same, as shown in FIG. 4, this is a view, The projection beam L extends parallel to the target zone 30 That is, since the parallel light beam P has a rectangular shape having a width and a height (the light source 11 of the collimating unit 10 is rectangular), the variable light beam unit 20 obtains the parallel light beam P according to its width and height, and then according to the The projection angle corresponding to the radius of curvature R of the cylindrical lens projects the light in the height direction of the parallel beam P toward the intersection F direction, and the parallel beam P maintains a straight line extending in the original width direction, since the target area 30 is at the intersection F Far, the height of the projected beam L will elongate after passing through the intersection F until it is projected to the target zone 30.

The projection system constructed by the above-mentioned structure mainly projects the parallel light beam P to the variogram unit 20 through the collimation unit 10, thereby projecting the projection beam L through the variator unit 20, wherein, please refer to FIG. When the projection beam L of the variogram unit 20 is projected to the target region 30, the target region 30 forms a rectangle according to the width and height of the projection beam L, mainly because the height of the projection beam L passes through the intersection F and The rear extension causes the height of the light shape to be elongated, so that a rectangular shape as shown in FIG. 5 is formed; if the cylindrical lens 21 of the variogram unit 20 is in the optical direction and rotated by a deflection angle A, as shown in FIG. 6, the light traveling direction is perpendicular to the width and the height, respectively, and the width and height of the projection angle are respectively deflected toward the light traveling direction, so that the projected light beam L of the target area 30 is thus formed as shown in FIG. As shown in FIG. 7, the rectangular shape is deflected to the right, so that the projection lens L can be deflected according to the projection angle by rotating the cylindrical lens 21 in the variator unit 20 through the user. Transforming it Shape emitted light, and the deflection angle can be adjusted to fine-tune the shape of the irradiation light is further shaped, a result can be adjusted to achieve the purpose of irradiation light shape.

As shown in FIG. 8, the second preferred embodiment of the present invention has substantially the same basic structure as the first preferred embodiment, except that the variant light unit 20 includes two cylindrical lenses 21 and 22. The first surfaces 211, 221 and the second surfaces 212, 222 of the two cylindrical lenses 21, 22 are respectively a plane and a curved surface. As shown in FIG. 8 and FIG. 9, the parallel beam P is via a variant light shape. The two cylindrical lenses 21, 22 in the unit 20 are respectively projected to the target area 30, wherein the light directions of the two cylindrical lenses 21, 22 are in the same direction, but the width and the height direction are perpendicular to each other, so the width and height of the parallel light beam P are light. The illuminating light shape of the target area 30 is elongated in the width direction by the rectangular shape as shown in FIG. 5 in the first embodiment, whereby the first light is extended to the target area 30 through the intersection F. The rectangular shape of the embodiment is converted into a square shape (as shown in FIG. 9); and the cylindrical lens 22 is rotated by the user in the direction of the light by a deflection angle, so that the projection beam L accordingly corresponds to the deflection. Deflection of the angle, as shown in Figure 10, the illumination of the target zone 30 The light shape can be formed into a deflected square shape as shown in FIG. 11, and thus the shape of the illumination light shape can be adjusted by finely adjusting the deflection angle of the cylindrical lens 22 in this manner.

Referring to FIG. 12, it is a third preferred embodiment of the present invention. The basic structure is substantially the same as that of the first preferred embodiment. The difference is that the convex lens of the variant light unit 20' is a cylindrical lens. The array 23 has a first surface 231 of the cylindrical lens array 23 as a plane, and the second surface 232 has a plurality of curved surfaces, and the curved surfaces are equidistantly arranged in the height direction and are equal in the width direction, and The curved surface has a radius of curvature R and an opening diameter D, respectively, so that the cylindrical lens array 23 also has a projection angle corresponding to the radius of curvature R and the opening diameter D, wherein the variegated light-shaped unit 20 ′ is obtained by the collimating unit 10 . a parallel beam P that is projected to the intersection F at a projection angle of the cylindrical lens array 23 in the variant light unit 20' and extends rearward to the target zone 30, the anamorphic unit 20' being laterally As shown in FIG. 13, the light of the height of the parallel light beam P is respectively projected to the intersection F through the curved surfaces on the second surface 232 of the cylindrical lens array 23, and extends to the rear to the target area 30, and is further viewed from the top. As shown in Figure 14. The width of the light of the parallel beam P is linearly extended to the target region 30, so that the illumination pattern of the target region 30 is stretched in the height direction to form a rectangular shape as shown in FIG. When the user rotates the deflection angle A of the cylindrical lens array 23 in the light traveling direction, as shown in FIG. 15, after the parallel light beam P passes through the deflection angle A of the cylindrical lens array 23, the illumination light shape is as shown in FIG. The rectangular shape is also correspondingly deflected and deformed, so that the illumination light shape can be further correspondingly deformed corresponding to the fine adjustment of the deflection angle, so that the user can finely adjust the angle to further finely adjust the illumination light shape.

Referring to FIG. 17, with reference to FIG. 17, the basic structure of the fourth embodiment of the present invention is substantially the same as that of the third embodiment, except that the two-column lens arrays 23 and 24 are disposed in the variant light-shaped unit 20'. The first surfaces 231, 241 and the second surfaces 232, 242 of the cylindrical lens arrays 23, 24 are formed as described above, mainly because the second surfaces 232, 242 are formed with a plurality of curved surfaces equidistantly arranged in the height direction, and The width of the two cylindrical lens arrays 23, 24 is the same direction and the width and height directions thereof are perpendicular to each other, and the cylindrical lens array 23 is located adjacent to the inner side of the parallel beam P, and the cylindrical lens array 24 is located adjacent to the target. The outer side of the region, so that the illumination light pattern is in the shape of a square as shown in FIG. 9, and as shown in FIG. 18, the light lens direction of the cylindrical lens array 24 adjacent to the target region 30 is rotated by a deflection angle A1, and the other The cylindrical lens array 23 is rotated by a deflection angle A2 in the light traveling direction, and the illumination light shape is deflected corresponding to the deflection angles A1 and A2, respectively, to form a general diamond shape as shown in FIG. Each of the cylindrical lens arrays 23, 24 Rotation angle A2, A1, may also be formed so that the emitted light is formed with a rectangular shape of a plurality of different angles, whereby users as needed for its proper deflection angle adjusted to obtain a suitable form of irradiation light.

Referring to FIG. 20, with reference to FIG. 20, the basic structure of the fifth preferred embodiment of the present invention is substantially the same as that of the fourth embodiment, except that the anamorphic optical unit 20' is provided with a three-column lens array 23, 24 25, the cylindrical lens array 25 is like a cylindrical lens array 23, 24, mainly on the first surface 251 is a plane, and the second surface 252 is formed with a plurality of curved surfaces, and the curved surface width is equal length, and Arranged equidistantly in the longitudinal direction, and each of the cylindrical lens arrays 23, 24, 25 is arranged at different deflection angles in the direction of light travel, and each of the cylindrical lens arrays 23, 24, 25 in the variant optical unit 20' is viewed from the front. As shown in FIG. 21, the parallel beam P is deflected according to the deflection angle of each of the cylindrical lens arrays 23, 24, 25 of the variator unit 20', and is formed in the target region 30 as shown in FIG. a hexagonal shape.

Referring to FIG. 23, with respect to the sixth embodiment of the present invention, the basic structure is substantially the same as that of the first embodiment, except that the variegated light-shaped unit 20" is composed of a Fresnel lens 26. The first surface 261 of the Fresnel lens 26 is a flat surface, and the second surface 262 is substantially jagged by the side view, and the width thereof is equal, and the height direction is the upper half and the lower half. The portions are symmetrical to each other, and the second surface 262 of the Fresnel lens 26 also has a projection angle as the cylindrical lens 21 of the first embodiment, and as viewed from the side, the height of the parallel beam P is as shown in FIG. It will project to the intersection F according to the projection angle and then extend to the target area 30, and as shown in Fig. 25, the width of the parallel beam P will continue to extend in parallel after passing through the Fresnel lens 26 to The target area 30 can form a rectangular shape in the target area 30 as shown in FIG. 5. Therefore, the Fresnel lens can be rotated in the light direction as in the first embodiment. a deflection angle A (not shown), whereby the illumination light shape forms an oblique shape as shown in FIG. The rectangular-shaped light irradiation angle, can be seen, the variation of the light unit 20 may also be formed by adjusting the tilt angle through the Fresnel lens 26, to achieve the effect of tuning the illumination light shape.

Referring to FIG. 26, the basic structure of the seventh preferred embodiment of the present invention is substantially the same as that of the sixth embodiment, except that the varistor lens 20" is provided with a Fresnel lens. 26, 27, and the two Fresnel lenses 26, 27 are in the same direction of the light traveling direction, and the first surfaces 261, 271 of the two Fresnel lenses 26, 27 are a plane, and the second surfaces 262, 272 are from the side The side view is jagged, and its upper half and lower half are symmetrical with each other in the height direction, and the width is equal in length, and the two Fresnel lenses 26 and 27 are perpendicular to each other in the height direction, so the parallel beam When the projection angle of the P-shaped anamorphic unit 20" is projected to the target area, the illuminating light pattern has a shape as shown in FIG. 9, and in the present embodiment, the two Fresnel lenses 26, 27 When the deflection angle A is respectively rotated in the direction of the light, the illumination shape can also be a rough shape as shown in FIG. 19, and the Fresnel lens can be further added to the variation light unit 20". Formed with three Fresnel lenses (not shown) and arranged at different deflection angles in the direction of light travel (not shown) The illumination pattern may also be hexagonal as shown in FIG. 22, such that the Fresnel lens 26, 27 is formed by the Fresnel lens 26, 27 according to the second surface 262, 272 thereof. The projection angle is such that the parallel beam P is projected to the intersection F by the projection angle and extends to the target zone 30, and then the deflection angle is changed by rotating the Fresnel lens 26, 27, so that the user can finely adjust the illumination shape. .

As shown in the above embodiments, the convex lens in the variator unit 20 can also be formed as shown in FIGS. 27 to 29, and the first surface and the second surface are formed like a cylindrical lens with a curved surface, such as a cylindrical lens. The array is formed with a plurality of curved surfaces or a zigzag shape which is symmetrical with respect to the upper and lower halves as viewed from the side of the Fresnel lens. In this way, the user can change the size of the illumination light shape of the target area 30. Because the lens will have a projection angle due to the projection angle of the first surface and the second surface, causing the corresponding intersection F displacement, and thus corresponding to the illumination shape of the target region 30 at the same distance. The area may be increased or decreased. Therefore, according to the above embodiments, the ratio of the radius of curvature of the parallel light beam P through the lens in the variator unit 20 and the diameter of the opening may correspond to the projection angle, thereby projecting the angle. The parallel beam P can be projected toward the lens intersection F and projected toward the rear target region 30, wherein by rotating the lens in the variogram unit 20, the illumination pattern of the target region 30 can be deformed and transmitted through the rotation. The angle can be slightly adjusted, that is, the shape of the illumination light shape can be finely adjusted, thereby achieving the purpose of fine-tuning the illumination shape, so that the user can finely adjust the required illumination shape according to the demand.

10. . . Collimation unit

11. . . light source

20, 20', 20"... mutated light unit

twenty one. . . Cylindrical lens

twenty two. . . Cylindrical lens

twenty three. . . Cylindrical lens array

twenty four. . . Cylindrical lens array

25. . . Cylindrical lens array

26. . . Fresnel lens

27. . . Fresnel lens

211. . . First surface

212. . . Second surface

221. . . First surface

222. . . Second surface

231. . . First surface

232. . . Second surface

241. . . First surface

242. . . Second surface

251. . . First surface

252. . . Second surface

261. . . First surface

262. . . Second surface

271. . . First surface

272. . . Second surface

30. . . Target area

Figure 1 is a perspective view of a first embodiment of the present invention.

Figure 2 is a schematic view showing the radius of curvature and the diameter of the opening of the present invention.

Figure 3 is a side elevational view of the projection system of the first embodiment of the present invention.

4 is a top plan view of a projection system according to a first embodiment of the present invention.

Fig. 5 is a schematic view showing the illumination pattern of the target area of the first embodiment of the present invention.

Fig. 6 is a schematic view showing a rotation angle of a cylindrical lens according to a first embodiment of the present invention.

Fig. 7 is a schematic view showing the illumination pattern of the target area corresponding to the deflection angle according to the first embodiment of the present invention.

Figure 8 is a schematic view showing a two-column lens according to a second embodiment of the present invention.

Figure 9 is a schematic view showing the illumination pattern of the target area in the second embodiment of the present invention.

Figure 10 is a schematic view showing the rotation angle of a two-column lens according to a second embodiment of the present invention.

Fig. 11 is a schematic view showing a rotation angle of a target area corresponding to a rotation-deflection angle according to a second embodiment of the present invention.

Figure 12 is a schematic view showing a prismatic lens array of a variant light-shaped unit according to a third embodiment of the present invention.

Figure 13 is a side elevational view of a projection system in accordance with a third embodiment of the present invention.

Figure 14 is a top plan view of a projection system in accordance with a third embodiment of the present invention.

Figure 15 is a schematic view showing the rotation of a cylindrical lens array according to a third embodiment of the present invention.

Figure 16 is a schematic view showing the illumination pattern of the target area of the third embodiment of the present invention.

Figure 17 is a schematic view showing a two-column lens array of a fourth embodiment of the present invention.

18 is a schematic view showing a rotation-deflection angle of a two-column lens array according to a fourth embodiment of the present invention.

Fig. 19 is a schematic view showing the illumination pattern of the target area in the fourth embodiment of the present invention.

Figure 20 is a schematic view showing a three-column lens array of a fifth embodiment of the present invention.

Figure 21 is a schematic view showing the three-column lens of the fifth embodiment of the present invention rotated by a deflection angle.

Figure 22 is a schematic view showing the illumination pattern of the target area of the fifth embodiment of the present invention.

Figure 23 is a schematic view showing a Fresnel lens according to a sixth embodiment of the present invention.

Figure 24 is a side elevational view of a projection system in accordance with a sixth embodiment of the present invention.

Figure 25 is a top plan view of a projection system in accordance with a sixth embodiment of the present invention.

Figure 26 is a schematic view showing a two Fresnel lens according to a seventh embodiment of the present invention.

Fig. 27 is a schematic view showing another lens type of the mutated light-shaped unit of the present invention.

Figure 28 is a schematic view showing another lens type of the anamorphic light unit of the present invention.

Figure 29 is a schematic view showing another lens type of the variant light-shaped unit of the present invention.

Figure 30 is a schematic diagram of a collimation system of the prior art.

Figure 31 is a schematic view showing the illumination of the target area of the prior art.

10. . . Collimation unit

11. . . light source

20. . . Variant light unit

twenty one. . . First surface

twenty two. . . Second surface

30. . . Target area

Claims (14)

A projection system capable of finely adjusting an illumination shape, comprising: a collimation unit projecting a parallel beam and extending along a direction of light; and a variability unit comprising more than one lens, the lens having a radius of curvature and a projection angle corresponding to an opening diameter, the projection angle corresponding to an intersection of the optical axis of the lens, and the lens is rotatable, the variegated optical unit is configured to pass the parallel beam And generating a projection beam corresponding to the projection angle, the projection beam being formed with an illumination pattern in a target region outside the intersection, and the shape of the illumination pattern corresponding to a deflection angle of the lens. The projection system of the illuminating light shape according to claim 1, wherein the lens of the variability light unit has a first surface and a second surface, and the optical direction is the optical axis and the deflection angle is rotated. The projection system of the illuminating light shape according to claim 2, wherein the lens of the variogram unit is a cylindrical lens, the first surface is a plane, the second surface is a curved surface, and the target area corresponds to The illumination light shape is a rectangular shape. The projection system of the illuminating light shape according to claim 3, wherein the lens of the variogram unit is a two-column lens, and the illuminating light shape corresponding to the target area is square. The projection system of the illuminating light shape according to claim 3, wherein the lens of the variogram unit is N cylindrical lenses, and the illumination light pattern corresponding to the target area has a 2N edge shape. The projection system of the illuminating light shape according to claim 2, wherein the lens of the variant light unit is a cylindrical lens array, the first surface is a plane, the second surface has a plurality of curved surfaces, and a target area thereof The corresponding illumination light shape is a rectangular shape. The projection system of the illuminating light shape according to claim 6, wherein the lens of the variogram unit is a two-column lens array, and the illumination light shape corresponding to the target area is square. The projection system of the illuminating light shape according to claim 7, wherein the lens of the variogram unit is N cylindrical lens arrays, and the illumination light pattern corresponding to the target area has a 2N edge shape. The projection system of the illuminating light shape according to claim 2, wherein the lens of the variability light unit is a Fresnel lens, the first surface is a plane, the second surface is sawtooth, and the target thereof The illumination light shape corresponding to the area is a rectangular shape. The projection system of the illuminating light shape according to claim 9, wherein the lens of the variogram unit is a two-Fresnel lens, and the illuminating light shape corresponding to the target area is square. The projection system of the illuminating light shape according to claim 10, wherein the lens of the variogram unit is N Fresnel lenses, and the illuminating light pattern corresponding to the target area has a 2N side shape. The projection system of the illuminating light shape according to any one of claims 2 to 11, wherein the first surface of the lens of the variegated light unit matches the corresponding second surface. The projection system for fine-tuning an illumination shape according to any one of claims 1 to 11, the collimation unit having a light source and a convex lens. A projection system for fine-tuning an illumination shape according to claim 12, the collimation unit having a light source and a convex lens.