TWI400441B - Illumination system and method for providing a line of light - Google Patents

Description

Lighting system and method for providing a line of light Field of invention

The present application claims priority to U.S. Patent Application Serial No. 60/890,627, filed on Feb. 20, 2007.

The present invention relates to systems and methods for automated optical inspection and verification, and more particularly to methods and systems for generating a train of light.

Background of the invention

Objects such as, but not limited to, printed circuit boards (PCBs), wafers, and HDIs can be illuminated by inspection of a portion of the object in a spot, array of light, or so-called area illumination.

Light reflected, scattered, and arbitrarily penetrating from objects will be detected.

During the inspection (evaluation), the object can be illuminated by area illumination, point illumination or line illumination. A spot or array of rays scans the object and allows the system to capture an image of the object.

In order not to cause errors in the inspection or evaluation process, the column of light should be uniform, especially when used in comparison to the test. In particular, the illuminating device should meet the following (important) requirements (i) spatial uniformity of light intensity over the entire array of rays; (ii) angular uniformity of light intensity over the entire array of rays; (iii) illumination over a wide range of angles (also known as high numerical aperture illumination); (iv) ability to control angular coverage (depending on application type), spectrum control (depending on application type), (v) high efficiency, (vi) durable, and ( Vii) low cost.

Can be used to include reflective optical elements (convergence mirrors) or refracted light The imaging optics of the component (convergence lens) provide a list of rays.

Referring to Figure 1a, an imaging illumination optical element (represented by "imaging optics") 14 converts linear light source 12 into a column of rays 16 (represented by "focus lines") on an object (not shown). The imaging optical element can be a refractive (lens) or a reflective (converging mirror). Limited by numerical aperture and in the absence of a lacunose design, imaging efficiency is poor with refractive optical elements. This can be illustrated by a two-dimensional light intensity map 20 comprising three spaced apart coverages 26, 24 and 22 in Figure 1b. Reflective optics (elliptical or more complex mirrors) do not have the above problems. This can be illustrated by a two-dimensional light intensity map 30 comprising a single continuous coverage range 32 in Figure 1c.

General problems with illumination design imaging methods are: (1) strongly correlated with local non-uniformities of the light source; (2) small optomechanical tolerance. These shortcomings can be partially overcome by inserting additional mixing or diffusing elements, however this can significantly reduce overall design efficiency.

Non-imaging methods involve projecting a linear source with or without mixing in a large area. Figures 2a-2c illustrate different system combinations. Figure 2a illustrates two linear light sources 42 and 44 that are parallel to each other. Each source is in a wide range of angles (52 and 54 respectively) to create a partial overlap 60 between these angular ranges. This combination is simple but limited by performance design. Figure 2 illustrates a single linear light source 72 accompanied by an integrated cavity including an upper concave portion 74 and a lower convex portion 76. Light is reflected from these portions and illuminates the illumination area 78. This combination is characterized by excellent mixing, low efficiency and lack of angular control. Figure 2c illustrates two The mutually parallel linear light sources 82 and 84 are accompanied by a diffuser plate 86 with a rectangular illumination pattern formed thereon. This combination is characterized by good mixing, low efficiency, and lack of angular control.

There will be a need to provide efficient methods and systems for providing a list of rays, and in particular for controlling the characteristics of such a column of rays.

Summary of invention

An illumination system comprising: (i) a first rectangular light emitting diode array that emits quasi-parallel light rays; and (ii) a first light collecting optical element that includes at least one total internal reflection lens portion and at least one refractive lens portion Share. Light from the first rectangular light-emitting diode array is guided by the first light-collecting optical element to an object to form a line of light on the object.

A method for providing a line of light, the method comprising the steps of: radiating quasi-parallel rays by a first rectangular array of light emitting diodes; and comprising at least one total internal reflection lens portion and at least one refractive lens portion The first collection of optical optics concentrates the quasi-parallel rays to form a line of light on an object.

Simple illustration

1a-1c illustrate a prior art imaging illumination optics and a two-dimensional angular intensity map; Figures 2a-2c illustrate prior art non-imaging illumination optics; and Figure 3a illustrates illumination optics in accordance with an embodiment of the present invention Device; Figure 3b illustrates the two-dimensional dimension of the illumination optics of Figure 3a Figure 4a and 4b illustrate illumination optics in accordance with various embodiments of the present invention; Figure 5a illustrates a rectangular LED array in which the LEDs are arranged in a rectangular pattern and an intensity map; Figure 5b illustrates an embodiment in accordance with the present invention. A rectangular LED array in which the LEDs are configured in a honeycomb type and a one-dimensional intensity map; FIG. 5c illustrates a relationship between a gap, a working distance, and an LED pitch according to an embodiment of the present invention; FIG. 6 illustrates Illumination optics, controllers, and intensity modulation curves in accordance with various embodiments of the present invention; FIG. 7a illustrates illumination optics in accordance with various embodiments of the present invention; and FIGS. 7b-7d illustrate different embodiments in accordance with the present invention 8 is a two-dimensional intensity diagram of an illumination optical device according to a different embodiment of the present invention; FIG. 9 illustrates an illumination optical device according to various embodiments of the present invention; Illuminating optical device according to an embodiment of the invention; FIG. 11 illustrates an illumination optical device and a collecting optical device according to an embodiment of the present invention; and FIG. 12 is a view according to the present invention A flowchart of an embodiment of the method of application.

Detailed description of the preferred embodiment

Figure 3a illustrates an illumination optics device 102 (also referred to as an illumination system) in accordance with an embodiment of the present invention in accordance with the present invention. Illumination optics 102 includes non-imaging optical elements. It comprises a rectangular (e.g., tissue-like) array of light sources 100, along with a collection optics (reflective or refractive) that concentrates the light emitted by a rectangular (e.g., tissue-like) array of light sources 100 in a narrow array of rays. 120 inside. Figure 3b illustrates the continuous coverage obtained by illumination optics 102 - the two-dimensional light intensity map 130 includes a single continuous coverage range 132.

Figure 4a illustrates an illumination optics 166 in accordance with an embodiment of the present invention. The plurality of collimated light sources 150-156 are disposed along a curved plane (which can be coupled to or integrated with a convex sheet) such that all of the beams (140-146) emitted from the collimated sources point to the same area to provide a column of light. 160. This combination does not include concentrating optics, although it appears simple, this approach requires very sophisticated techniques to achieve acceptable levels of light uniformity.

Figure 4b illustrates an illumination optics 199 in accordance with an embodiment of the present invention.

The multi-beam quasi-parallel light sources 170-178 are configured in a planned manner to form a planarly extending quasi-parallel source. This planarly extending quasi-parallel light source is accompanied by a cylindrical planar TIR (total internal reflection) lens 202 as a collecting optical element. The angular coverage produced by the cylindrical planar TIR lens 202 is broad and has no aberrations characteristic of conventional refractive optical elements. Suitably, the central portion of the TIR lens 202 is refractive. As illustrated by beams 190-198, beams 180-188 produced by quasi-parallel sources 170-178 will pass through TIR lens 202 and will be directed to column ray 200.

Suitably, the extended quasi-parallel light source can comprise an array of a plurality of individual light sources. These light sources should emit a narrow beam of light and be substantially equal to each other in terms of illuminating pattern and intensity.

In accordance with an embodiment of the present invention, an array of light emitting diodes (LEDs) is used as a quasi-parallel source and should meet at least some of the following conditions: the viewing angle (of each LED) should not exceed 10 degrees. The LED array should be arranged in the hexagonal closest packing ("honeycomb") (as described in Figure 5b), and the light emitted by the LEDs should have a high luminous energy - about 1000 lumens / 100 mm, The LEDs should be multi-colored LEDs (for example, red, yellow, blue/cyan, and the like), and the color of the light emitted by the LED array can be electronically controlled, and the illumination angle is covered. It should be electronically controllable by the LED locations, which should have an effective cooling mechanism. It should be noted that the LED array should not necessarily meet all of these requirements and various values (eg, intensity values, viewing angles) are not mandatory.

Suitably, the LED array includes LEDs having a narrow illumination angle to enable a quasi-parallel source. When a narrower source of light can be concentrated in a narrower strip of light and has higher efficiency, the LED illumination angle has a fairly direct impact on the collection efficiency of the illumination optics. The following table illustrates several simulation results:

Suitably, the LEDs of the LED array are arranged in a manner that is hexagonally packed.

Figure 5a illustrates a rectangular LED array in which the LEDs 210-218 are arranged in a rectangular manner and an intensity map 219 formed by the array. Figure 5b illustrates a rectangular LED array in which the LEDs 220-237 are arranged in a hexagonal manner (also referred to as hexagonal stacking of LEDs) and an intensity map formed by the array, in accordance with an embodiment of the present invention. . Figure 5c illustrates the relationship between an "invisible" gap 265, a working distance 252, and an LED spacing 250 in accordance with an embodiment of the present invention. The gap is invisible so that it does not cause a gap within the coverage of the column ray 270.

The LED array of Figure 5b (for the LED array of Figure 5b) provides better spatial and angular uniformity in the column light.

As shown in Figure 5c, the minimum acceptable LED array spacing is a function of the collection geometry (working distance, individual LED dimensions) and the numerical aperture of the collection optics. Longer working distances (252 of Figure 5c), lower NA, and larger LED sizes can tolerate larger spacing (250). For example, a working distance of 17 mm, an LED diameter of 5 mm, and a distance of 1 mm may form a gap of about 1 degree between adjacent beams 263 and 264 (ejected from adjacent LEDs 243 and 244) but this The gap will not be noticed in the column ray 270.

In accordance with an embodiment of the invention, each of the LEDs in the array includes a plurality of light emitting components and each component can emit light of a different color. Each The light emitted by the LEDs can be electronically controlled by determining which of the light-emitting components to activate. When such an LED is used, the color of each group of LEDs (each group may include one or more LEDs) will be electronically controllable. It should be noted that a group of LEDs may include a column, a row, a two-dimensional sub-array of LEDs, a portion of a column, and a portion of a row. The manner in which LED groups are controlled in an array can be traded off between the complexity of the control mechanism and the maneuverability of the LED array. Therefore, controlling each individual LED is characterized by maximum maneuverability but requires very complicated control mechanisms and complicated wiring.

In accordance with yet another embodiment of the present invention, each LED (or even each group of LEDs) can be monochromatic (and emit ultraviolet to infrared light).

According to still another embodiment of the present invention, the colored light can be controlled by using a color filter and a specially assembled color filter.

It should be noted that a multi-color LED array can emit a combination of red, blue, green, white, or other colors. Suitably, the LED array should be capable of emitting red and/or yellow and/or blue light.

Suitably, independent electronic control over color intensity may allow adjustment of the illumination spectrum to meet specific application needs.

FIG. 6 illustrates an LED array 300, a controller 310, and an intensity modulation curve 330 in accordance with an embodiment of the present invention.

The LED array 300 includes (M+1) columns and N rows. It includes LEDs 300 (0, 1) - 300 (M, N).

Controller 310 can control different characteristics of each group of LEDs of LED array 300. The controller 310 as indicated above can control each group of LEDs. The The control package may determine at least one of the following or a combination thereof: (i) LED angle coverage (the coverage means a view angle extending outward and perpendicular to the paper of FIG. 8), the LED may be set to Light is emitted at one of a plurality of viewable angles (eg, -large, medium, and narrow); (ii) intensity (intensity (two or more) intensity levels are selected from a plurality of intensities, and intensity modulation curve 330 provides LED array 300 A non-limiting example of a different intensity LED array 300 level of different pixels - having a peak in the center column of the LED array 300 and having a minimum at the edge of the LED array 300, this intensity modulation curve can compensate for illumination And intensity non-uniformity caused by imaging optics; (iii) color.

In a non-limiting example, controller 310 can control the intensity of each row and the angular coverage of each column. The angular coverage can vary along the scan square. Controller 310 can also control the color and shading of the entire array.

Figure 7a illustrates an illumination optics device 500 in accordance with an embodiment of the present invention.

Illumination optics 500 includes a hybrid optical element 550 and a rectangular LED array 570. Figure 7a also illustrates beams 541, 542, 543, 551 and 552.

Rectangular LED array 570 is parallel to hybrid lens 500 and both are perpendicular to column ray 560. The column ray 560 is perpendicular to the paper surface of Figure 7a.

The array of rectangular LED arrays 570 emits quasi-parallel light toward the hybrid lens 500. To simplify the description, only a few light beams are emitted to the hybrid lens 500. The quasi-parallel light system from the rectangular LED array 570 is mixed The compound lens 550 is guided to form a line of rays 560 on the object.

The hybrid lens 550 functions as a collecting lens. The central portion (central portion facet) 520 of the hybrid lens 550 is a refractive lens (such as, but not limited to, a Fresnel lens). One or more of the surrounding portions of hybrid lens 550 (providing external facets of both TIR and refractive mechanisms) are total internal reflection lenses as described by TIR lenses 510 and 530. It should be noted that the hybrid lens 550 extends outward from the sheet of Fig. 7a.

A beam substantially perpendicular to the column ray 560 and a beam defining a small angle relative to the normal 580 of the column ray propagate through the refracting lens 520 as illustrated by the beam 551 that is refracted to provide the beam 552. Beam 552 forms a small angle 559 with normal 580. A beam of light defining a large angle relative to normal 580 is transmitted through a total internal reflection lens portion which is reflected to form beam 542 and then refracted to provide beam 543. Beam 543 forms a small angle 549 with respect to normal 580.

The multi-faceted TIR sections 510 and 530 allow compact and efficient light to be concentrated in the very high N.A (wide angular coverage).

Fig. 8 is a view showing a two-dimensional angular intensity map of the illumination optical device 500 of the seventh embodiment (9) according to different embodiments of the present invention, to obtain a relatively continuous coverage.

Hybrid lens 550 promotes uniformity of angle over a wide range of angular coverage.

It should be noted that the hybrid lens 550 can be replaced by a plurality of lenses spaced apart from one another, as described in Figures 7b, 7c, 7d, 9, 10 and 11.

7b-7d are diagrams illustrating light collection in accordance with various embodiments of the present invention mirror.

Figure 7b illustrates a refractive lens 520' and two FIR lenses 510' and 530'.

Figure 7c illustrates a central lens 522 that includes a refractive portion 522(2) surrounded by FIR portions 522(1) and 522(3) and FIR lenses 512 and 532, each of which corresponds to the first FIR lenses 510 and 530 of Figure 7a.

Figure 7d illustrates a central lens 524 that includes a refractive portion corresponding to a portion of the refractive lens 520 of Figure 7a and two other lenses 514 and 534, each of which includes a refractive portion 514(1) and 534 (1) and FIR sections 514 (2) and 534 (2).

It should be noted that these different lenses may be parallel to one another and additionally or alternatively approximate one another, but this need not be the case. These lenses can be placed in a non-parallel manner as described in Figures 9, 10 and 11 by using a beam splitter or other type of light guiding optical element.

Figure 9 illustrates an illumination optics 600 in accordance with an embodiment of the present invention.

The illumination optical device 600 includes: a first rectangular light emitting diode array 690, a first light collecting lens 680, a beam splitter 670, a second rectangular light emitting diode array 650, a second collecting lens 630, and a third rectangular light emitting diode The body array 660 and the third collecting lens 640.

Light emitted from the first LED diode array 690 passes through the first collection lens 680 to be guided by the beam splitter 670 (as described by the beam 602) to the object 610 to form the column ray 620 while propagating through the second defined And a space 635 between the third collection lens 630 and 640. As described by beam 601, from the first Light emitted by the two rectangular LED arrays 650 is directed to the column of light rays 620 through the second collection lens 630. As described by beam 603, light emitted from third rectangular LED array 660 will be directed to object 610 through third collection lens 640. The first collection lens 680 is a refractive lens (or at least partially comprising such a refractive lens). The second collection lens 650 and the third collection lens 640 are TIR lenses (or at least partially include such TIR lenses).

Each of the rectangular LED arrays (650, 660, and 690) may be an LED array as described in FIG. 8 that emits quasi-parallel light and may be in a different manner (color, intensity, light pattern or It's a combination) to control.

This illumination planning is designed to provide an overlap of the off-axis (light emitted from the rectangular LED array 690) and the collected beam on the shaft (light emitted from the rectangular LED array 650 or 660).

Figure 10 illustrates an illumination optics 888 in accordance with an embodiment of the present invention.

The illumination optics 888 of FIG. 10 differs from the illumination optics 600 of FIG. 9 by including linear diffusers 790, 770, and 760 that are adjacent to the collection lenses 800, 780, and 740.

It should be noted that the beam splitter (670 of Figure 9 or 750 of Figure 10) may have a graded coating (100% penetration in the outer surface area and spectroscopic coating in the inner surface area).

Figure 11 illustrates an illumination optics 900 in accordance with an embodiment of the present invention.

Illumination optics 900 includes a beam splitter 930, a collection optics 920, and a rectangular LED array 910. Quasi-flat from rectangular LED array 910 The row of light has formed a line of rays 950 on the object 960 through the collection optics 920 and the beam splitter 930. Light reflected from the object 960 is transmitted to the beam splitter 930 and directed by the beam splitter to the imaging sensor 940.

Figure 12 illustrates a method 900 in accordance with an embodiment of the present invention.

The method 900 includes a stage 9010 of emitting quasi-parallel light by a first array of rectangular light emitting diodes.

Stage 9020 is followed by stage 9010 by concentrating the quasi-parallel light to form a line of light on an object by a first light collecting optical element comprising at least one total internal reflection lens portion and at least one refractive lens portion.

Stage 9020 generally includes a beam that allows a beam substantially perpendicular to the column of rays and a small angle defined relative to a normal to the column of rays to propagate through a refractive lens portion and allows a large angle to be defined relative to a normal to the column of rays The beam propagates through a total internal reflection lens portion.

Stage 9020 generally includes concentrating the light by a collection optics comprising a hybrid lens, a central portion of the hybrid lens comprising a refractive lens and wherein a peripheral portion of the hybrid lens comprises a full interior Reflective lens.

Stage 9020 can precede the stage 915 by passing the quasi-parallel light through a scattering element positioned between the first rectangular light emitting diode array and the first collection optics.

Method 900 according to an embodiment of the invention includes the following stages: stage 9030 emits quasi-parallel light by a second rectangular light emitting diode array; stage 9040 is quasi-parallel by a second light collecting optical element Parallel light concentrates to form a line of light on an object; stage 9050 is by a third a rectangular light emitting diode array to emit quasi-parallel light; a stage 9060, wherein the quasi-parallel light from the third rectangular light emitting diode array is concentrated on an object by a third light collecting optical element to form a column Light; and stage 970 directing quasi-parallel light from the first collection lens to the object while propagating through a space defined between the second and third collection lenses by a beam splitter; The first collecting lens comprises a refractive lens portion. The second collecting lens and the third collecting lens comprise a total internal reflection lens portion.

Method 900 can include generally quasi-parallel light scattering from each rectangular array of light emitting diodes.

Method 900 can generally include a stage 905 of applying a control scheme. Stage 905 can comprise at least one of the following: or a combination thereof: (i) controlling the intensity of one of each group of light-emitting diodes of the first rectangular light-emitting diode array; (ii) controlling the first rectangular light-emitting diode (iii) controlling a radiation pattern of each of the plurality of light-emitting diodes of the first rectangular light-emitting diode array; In general, stage 9010 includes emitting quasi-parallel light through a first rectangular array of light emitting diodes, the first rectangular array of light emitting diodes including a plurality of diodes configured in the form of a honeycomb.

The invention can be implemented using general tools, methods, and components. Therefore, the tools, components and methods are not described in detail herein. In order to provide a thorough understanding of the present invention, numerous specific details are set forth in the Detailed Description. However, it should be understood that the invention may be practiced without the details of the details.

Only a few exemplary embodiments and variations thereof are shown and described in the context of the present disclosure. It is to be understood that the invention may be susceptible to variations and modifications which may be employed in various other various combinations and environments.

12‧‧‧Linear light source

14‧‧‧ imaging illumination optics

20, 30‧‧‧Two-dimensional light intensity map

32, 132‧‧ ‧ coverage

42, 44, 72, 82, 84‧‧‧ linear light source

52, 54‧‧‧ angle range

60‧‧ ‧overlap

74‧‧‧ concave part

76‧‧‧ convex part

78‧‧‧Lighting area

86, 760, 770, 790‧‧ ‧ diffusing film

100‧‧‧Rectangular light source array

102, 166, 199, 500, 600, 888, 900‧‧‧ illumination optics

120, 160, 200, 270, 560, 950 ‧ ‧ columns of light

140, 146‧‧‧ beam

150, 156‧‧ ‧ collimated light source

170, 178‧‧ ‧ quasi-parallel light source

180,188‧‧‧beam

202‧‧‧Cylindrical Plane Total Internal Reflection Lens

210, 218, 220, 237‧‧‧ LED

219, 239‧‧‧ intensity map

250‧‧‧LED spacing

252‧‧‧Working distance

300, 570, 910‧‧‧ LED array

310‧‧‧ Controller

330‧‧‧ intensity modulation curve

510, 530‧‧‧TIR lens

550‧‧‧Hybrid optics

541, 542, 543, 551, 552, 601, 602, 603 ‧ ‧ beams

549, 559‧‧‧ angle

580‧‧‧ normal

520', 522 (2) ‧ ‧ refracting lens

510', 530', 512, 532‧ ‧ FIR lenses

522(1), 522(3), 514(2), 534(2)‧‧‧FIR part

522, 524‧‧‧ center lens

514(1), 534(1)‧‧‧ Refracting part

610, 960‧‧ objects

740, 780, 800‧‧ ‧ collecting lens

650, 660, 690, 910‧‧‧ Rectangular LED array

630, 640, 680‧‧ ‧ collecting lens

670, 750, 930‧‧ ‧ beamsplitter

940‧‧‧ sensor

905, 9010, 915, 9020, 9030, 9040, 9050, 9060, 970‧‧

1a-1c illustrate a prior art imaging illumination optics and a two-dimensional angular intensity map; Figures 2a-2c illustrate prior art non-imaging illumination optics; and Figure 3a illustrates illumination optics in accordance with an embodiment of the present invention Figure 3b illustrates a two-angle dimensional intensity map of the illumination optics of Figure 3a; Figures 4a and 4b illustrate illumination optics in accordance with various embodiments of the present invention; and Figure 5a illustrates a rectangular LED with LEDs arranged in a rectangular pattern Array and an intensity map; FIG. 5b illustrates a rectangular LED array and a one-dimensional intensity map of the LEDs configured in a honeycomb manner according to an embodiment of the present invention; FIG. 5c illustrates an embodiment of the present invention in accordance with an embodiment of the present invention The relationship between the gap, the working distance, and an LED pitch; FIG. 6 illustrates illumination optics, controllers, and intensity modulation curves in accordance with various embodiments of the present invention; and FIG. 7a illustrates illumination in accordance with various embodiments of the present invention Optical device; Figures 7b-7d illustrate a collecting lens in accordance with various embodiments of the present invention; Figure 8 illustrates a two-dimensional intensity diagram of illumination optics according to Figure 7 of a different embodiment of the present invention; Figure 9 illustrates illumination optics in accordance with various embodiments of the present invention; and Figure 10 illustrates one of the aspects of the present invention Illumination optics of an embodiment; Figure 11 illustrates an illumination optics and collection optics in accordance with an embodiment of the present invention; and Figure 12 is a flow diagram of a method in accordance with an embodiment of the present invention.

100‧‧‧Rectangular light source array

102‧‧‧Lighting optics

110‧‧‧Light collecting optics

120‧‧‧ a column of light

Claims (20)

An illumination system comprising: a first rectangular light emitting diode array capable of emitting quasi-parallel light; and a first light collecting optical element comprising at least one total internal reflection lens portion and at least one refractive lens portion; The quasi-parallel light from the first rectangular light emitting diode array is directed by the first light collecting optical element to an object to form a line of light on the object. The system of claim 1, wherein the light beam substantially perpendicular to the light of the column and the light beam defining a small angle with respect to a normal to the light of the column propagate through a refractive lens portion, and wherein the light is relative to the column of light The normal defines a large angle beam that propagates through a total internal reflection lens portion. The system of claim 1, wherein the first light collecting optical element comprises a hybrid lens; wherein a central portion of the hybrid lens comprises a refractive lens, and wherein a peripheral portion of the hybrid lens comprises a Total internal reflection lens. A system of claim 1, comprising a linear scattering element positioned between the first rectangular light emitting diode array and the first light collecting optical element. The system of claim 1, further comprising: a beam splitter; a second rectangular light emitting diode array; a second collecting lens; a third rectangular light emitting diode array and a third collecting lens ; The light emitted from the first rectangular light-emitting diode array is guided by the first light collecting lens to the object by the optical splitter while propagating through the space defined between the second and the third light collecting lens. Wherein the light emitted from the second rectangular light-emitting diode array is guided to the object through the second light collecting lens; wherein the light emitted from the third rectangular light-emitting diode array passes through the third The collecting lens will be directed to the object; and wherein the first collecting lens comprises a refractive lens portion; wherein the second collecting lens and the third collecting lens each comprise a total internal reflection portion. A system of claim 5, comprising a plurality of scattering elements, each of the scattering elements being positioned between a rectangular light emitting diode array and a collecting lens. The system of claim 1, further comprising a controller for controlling the intensity of each group of light emitting diodes of the first rectangular light emitting diode array. The system of claim 1, further comprising a controller for controlling the color of each group of light emitting diodes of the first rectangular light emitting diode array. The system of claim 1, further comprising a controller for controlling a radiation pattern of each of the plurality of light emitting diodes of the first rectangular light emitting diode array. The system of claim 1, wherein the first rectangular light emitting diode array comprises a plurality of diodes arranged in a honeycomb manner. A method for providing a line of light, the method comprising the steps of: emitting quasi-parallel light by a first rectangular light emitting diode array; and comprising at least one total internal reflection lens portion and at least one refractive lens A portion of the first collection optical element concentrates the quasi-parallel light to form a line of light on an object. The method of claim 11, comprising: allowing a beam substantially perpendicular to the column of rays and defining a small angle of light relative to a normal to the column of rays to propagate through a refractive lens portion and allowing relative to the column The normal of the light defines a large angle beam that propagates through a total internal reflection lens portion. The method of claim 11, wherein the first light collecting optical element comprises a hybrid lens; wherein a central portion of the hybrid lens comprises a refractive lens, and wherein a peripheral portion of the hybrid lens comprises a Total internal reflection lens. The method of claim 11, comprising passing the quasi-parallel light through a scattering element positioned between the first rectangular light emitting diode array and the first light collecting optical element. The method of claim 11, further comprising emitting quasi-parallel light by a second rectangular light emitting diode array; and receiving the second rectangular light emitting diode by a second light collecting optical element The quasi-parallel light of the body array is concentrated to form a line of light on an object; the quasi-parallel light is emitted by a third rectangular light emitting diode array; and the third light collecting optical element is derived from the first light collecting optical element The standard of the three rectangular light-emitting diode array Parallel light concentrates to form a line of light on an object; directing quasi-parallel light from the first collecting lens to the object while propagating through the second and third collecting lenses defined by the optical splitter a space between the first light collecting lens and a refractive lens portion; and wherein the second and third light collecting lenses comprise a total internal reflection portion. A method of claim 15, comprising multi-scattering quasi-parallel light from each rectangular array of light-emitting diodes. The method of claim 11, further comprising the step of controlling the intensity of each of the plurality of light emitting diodes of the first rectangular light emitting diode array. The method of claim 11, further comprising the step of controlling the color of each of the plurality of light-emitting diodes of the first rectangular light-emitting diode array. The method of claim 11, further comprising the step of controlling a radiation pattern of each of the plurality of light-emitting diodes of the first rectangular light-emitting diode array. The method of claim 11, wherein the first rectangular light emitting diode array comprises a plurality of diodes configured in a honeycomb manner.