TW201534835A - Lighting system including reflector and lens for forming arbitrary light shape - Google Patents

Abstract

This invention is a lighting system, which includes a reflector and a lens for forming an arbitrary light shape. The lighting system comprises a light source module, a reflector, a lens, and a light exiting window. The light exiting window is for transmitting light from the light source module. The reflector and the lens are set up as a corresponding group. The reflector comprises an optical reflective surface having a high reflectivity, or an optical reflective surface comprising a high reflectivity material applied on a reflective surface thereof. The light emitting from the light source module is controlled by geometric shapes of various reflection points and refraction points of the reflector and the lens respectively. Light is reflected or refracted to pass through the light exiting window to a pre-determined corresponding point on a light receiving surface. As a result, pre-determined arbitrarily illuminance distribution is achieved on the light receiving surface. The light source module, reflector, and the lens are all mounted on the exterior at the edge of the light exiting window.

Description

Illumination system with reflector and lens capable of arbitrarily distributing light patterns

An illumination system having a reflector and a lens capable of arbitrarily distributing a light pattern, and the invention particularly includes a reflector and a lens, so that the energy of the light source from the illumination system can be arbitrarily distributed in a plane through the light exit window ( On the light-receiving surface, an illumination system having an arbitrary illuminance distribution on the light-receiving surface is obtained. The illuminance distribution on the light-receiving surface can also be a uniform illuminance, which is a special embodiment of the invention.

The lighting system using the reflector is a conventional technique as it is, please refer to US Patent Publication No. US2008/0239723 "LED TABLE LAMP", and the Republic of China Patent Publication No. 200907248 "Lighting system, illuminator and backlight unit" The main purpose is to use a diffused light source or multiple reflections of light through the optical reflecting surface to form an illuminance distribution on the light exit window or the light exit port. However, the light source undergoes two or more reflections or diffusions to the light exit window or the light output. The mouth obviously loses some energy, and such a design does not necessarily produce a uniform illumination effect or control the illumination change on the light exit window or the light exit or the light receiving surface. Furthermore, the above illumination system reflects the inside. The optical reflecting surface in the device determines the area according to the size of the receiving surface of the illumination system, which causes the reflector to occupy most of the volume of the lighting system, so that the lighting system cannot meet the requirements of downsizing, so how to improve The uniformity of illumination on the light-receiving surface and the small area of the optically reflective surface on the reflector to reduce the volume of the reflector are in need of improvement.

In view of the above needs, the inventors have analyzed and studied the structure and luminous efficiency of the light-emitting module based on the experience of related equipment for many years, and can design a physical product that meets the above requirements; accordingly, the present invention The main purpose of the invention is to provide a reflector and a lens that can maintain the efficiency and can generate any predetermined illumination on the light receiving surface, and further achieve the goal of simplifying and reducing the structure, thereby reducing the manufacturing cost and reducing the volume. Lighting system.

To achieve the above object, the present invention consists of a reflector, a lens, a light source, and a light exit window for emitting light from an illumination system having a reflective surface or a reflective surface having a high reflectivity. Applying a highly reflective material to cause the light emitted by the light source module to be acted upon by the geometry of the reflector and the lens, so that the light passes through the light exit window to illuminate a desired position on a plane (light receiving surface), thus Any illuminance distribution can be obtained on the light receiving surface. The illuminance distribution on the light-receiving surface can also be a uniform illuminance, which is a special embodiment of the invention.

In order for your review board to have a clear understanding of the structure, composition and efficacy of the present invention, please refer to the following description.

10‧‧‧Lighting system with reflector and lens for arbitrarily distributing light patterns

10'‧‧‧Lighting system with reflector and lens for arbitrarily distributing light patterns

10"‧‧‧Lighting system with reflector and lens for arbitrarily distributing light patterns

101‧‧‧Front frame

102‧‧‧ reflector

1011‧‧‧ accommodating space

1021‧‧‧Optical reflective surface

103‧‧‧Light source module

104‧‧‧ lens module

1031‧‧‧ bracket

1041‧‧‧ lens into the glossy surface

1032‧‧‧Lighting unit

1042‧‧‧ lens surface

105‧‧‧light window

106‧‧‧Glossy surface

107‧‧‧Working face

108‧‧‧second reflector

109‧‧‧Virtual plane

A1‧‧‧ points

B1‧‧‧ points

A2‧‧‧ points

B2‧‧‧ points

A3‧‧‧ points

C‧‧‧ writing surface

D‧‧‧ display cabinet

L1‧‧‧Light

V1‧‧‧The strongest direction on the light source

L2‧‧‧Light

L3‧‧‧Light

L4‧‧‧Light

L5‧‧‧Light

20‧‧‧Lighting system with reflector and lens for arbitrarily distributing light patterns

30‧‧‧Lighting system with reflector and lens for arbitrarily distributing light patterns

40‧‧‧ illuminators

401‧‧‧Transparent mask

50‧‧‧Display system

501‧‧‧Transparent film

502‧‧‧Battery

503‧‧‧ boards

60‧‧‧Lens with reflective surface

601‧‧‧Optical reflective surface

602‧‧‧reflected into the glossy

603‧‧‧Reflected glossy

604‧‧‧ lens into the glossy

605‧‧‧Lens illuminating surface

Fig. 1 is a schematic view showing the composition of an illumination system of the present invention.

Fig. 2 is a schematic view (1) of the present invention.

Figure 3 is another embodiment (1) of the present invention.

Figure 4 is another embodiment (2) of the present invention.

Figure 5 is another embodiment (3) of the present invention.

Figure 6 is another embodiment (4) of the present invention.

Figure 7 is another embodiment (5) of the present invention.

Figure 8 is another embodiment (vi) of the present invention.

Figure 9, a schematic view of a lens with a reflective surface.

Please refer to FIG. 1 , which is a schematic diagram of the illumination system of the present invention. The illumination system 10 having a reflector and a lens capable of arbitrarily distributing light patterns is mainly composed of an outer frame 101 , A reflector 102, a light source module 103, a lens 104, and a light-receiving surface (plane) 106 are formed; wherein the outer frame 101 can be disposed at a place to be illuminated according to the use case, and the interior has a The accommodating space 1011 is open, and the bottom of the accommodating space 1011 is open. The open window is an exit window 105, and an imaginary plane 109 is formed adjacent to the light exit window 105. The direction v1 with the highest intensity of the light source points to the light exit window 105. And perpendicular to the imaginary plane 109, or an angle with the imaginary plane 109 is less than 90 degrees; a reflector 102, a light source module 103, a lens 104 are arranged adjacent to the light exit window 105; the reflector 102 has an optical reflective surface 1021. The lens 104 has a lens entrance surface 1041 and a lens exit surface 1042. The geometry of the reflection surface 1021, the lens entrance surface 1041 and the lens exit surface 1042 is governed by an energy distribution equation and optical refraction and reflection principles. The light of the light source module 103 can be guided to obtain an arbitrary illuminance distribution on a plane (light receiving surface) 106 through the light exit window 105, and the energy distribution equation is ʃI(Ω)cosΩdΩ=E(A)dA, dA is the differential area of the light-receiving surface, and E(A) is the energy function per unit area on a certain differential area on the light-receiving surface. When E(A) is a fixed value, it represents a uniform illuminance distribution on the light-receiving surface (please refer to non- Patent document "Freeform LED Lens for uniform illumination" Yi Ding, Xu Linx, Zhen-r ong Zheng, an d Pei-fu Gu.18 August 2008/Vol.16, No17/OPTI CS EXPRES S PP.12958-12966), Wherein, the light receiving surface 106 can be For the desktop, the floor surface, the blackboard surface, the display surface, the working surface, and the like, the light source module 103 is disposed adjacent to the light exit window 105 so that a light of the light source module 103 is directed toward the light. The window 105 is emitted, the reflector 102 and the lens 104 are respectively disposed on both sides of the light source module 103 and the lens 104 is closer to the light exit window 105, and the reflector 102 is farther away from the light exit window 105. The reflector 102 can have two forms. The first form is the use of an opaque material, such that one side has a high reflection effect, so that the incident light and the reflected light are in the air; the other form is to use a light-transmitting material, one side of which is applied as a high reflection The material is such that the incident light and the reflected light are carried out in the light transmissive material. Please refer to FIG. 9 again, which is a schematic diagram of a lens having a reflective surface, as shown in the figure, if a light transmissive material is used as the reflector 102. When implemented, the lens 60 can be a single optical element with a reflective surface, and has an optical reflecting surface 601, a reflecting light surface 602, a reflecting light surface 603, and a lens light. A lens 604 and the surface 605 in the optical system 601 is applied as a layer of reflective surface highly reflective material.

Please refer to "Fig. 2", which shows the schematic diagram of the implementation of the present invention (1), please refer to "Figure 1", and please match the table (1): As shown in the figure, the light receiving surface 106 is placed on the light exit window 105. Generally, the LED light source is a Lambertian light source or an approximate Lambertian light source. Therefore, the light source module 103 has a strongest direction V1 on the light source, so that the strongest direction V1 on the light source is downward to arrange the light source. In the direction, one light ray L1 on the light source module 103 is emitted from the light source to a point a1 on the optical reflecting surface 1021. The light ray L1 is reflected by the optical reflecting surface 1021 to form a light ray L2 to reach a point b1 on the light receiving surface 106, and is optically reflected. The normal vector at point a1 of the principle reflection surface is N, the angle between the ray L1 and the normal vector N is the incident angle θ1, and the angle between the ray L2 and the normal vector N is θ2, and θ1=θ2 when reflected. In the case of a lens, the relationship between the incident angle and the angle of refraction according to the principle of refraction is n1sin θ1 = n2sin θ2, where n1 is the refractive index of the medium in which the incident light is located, and n ₂ is the refractive index of the medium in which the lens entrance surface 1041 is located, and θ ₁ is The angle between the normal vector of a point on the surface of the lens and the incident ray, θ ₂ is the angle between the normal vector of a point on the surface of the lens and the outgoing ray, and the surface equation of the optical reflecting surface 1021 or the lens emitting surface 1042 and the lens entrance surface 1041 Φ, N is the normal vector on the surface, then ▽Φ=N, ▽ is the direction derivative operator, Therefore, when the light L1 and the light L2 are determined, N can be obtained, and N can be obtained by N, that is, the geometry of the reflective surface 1021 on the reflector 102 can be determined, and then a light L3 of the light source module 103 reaches the lens light. On the surface 1041, a point a2, the lens entrance surface 1041 can be determined in advance as a spherical surface, an elliptical surface, a paraboloid, a hyperboloid or a free curved surface. The normal direction at the a2 point on the curved surface is determined, so the lens is operated in the lens medium. A light L4 has also been determined, and the light beam L4 reaches a point a3 on the light exiting surface 1042 of the lens, and is then refracted into a light beam L5 to reach a predetermined point b2 on the light receiving surface 106. The geometry of the point a2 and the point a3 is determined by the principle of refraction. Determined, the geometry of the lens can be determined in this way, and the points (a1, a2) on the light source's strongest direction V1 and the optical reflection surface 1021 and the lens light-emitting surface 1042, respectively, and the points on the light-receiving surface 106 (b1) And b2) may have a plurality of different combinations. The most natural method is to separately consider the lens 104 and the reflector 102 to the strongest direction V1 on the light source, and to make any one of the lens light exiting surface 1042 and the reflecting surface 1021, wherein Match The point on the light receiving surface 106 corresponding to the strongest direction V1 on the near light source is also closer to the strongest direction V1 on the light source, and the other method is any set of points on the lens light emitting surface 1042 or the optical reflecting surface 1021, wherein the light source is the strongest on the light source. The point on the light-receiving surface 106 corresponding to the point of the direction V1 is farther away from the strongest direction V1 on the light source, and the lens light-emitting surface and the optical reflection surface may be divided into a plurality of sections, each of which has a corresponding point on the light-receiving surface and the light source. The strongest direction V1 is farther or closer, and this hybrid method can produce more illuminance changes on the light receiving surface.

Please refer to FIG. 3, which is another embodiment (1) of the present invention. The illumination system 20 having a reflector and a lens capable of arbitrarily distributing light patterns is illustrated, wherein the light source module 103 is provided. The system is disposed at the bottom of the accommodating space 1011, and the reflector 102 and the lens 104 are respectively disposed on both sides of the light source module 103, so that the distance between the lens 104 and the light exit window 105 is smaller than the distance between the reflector 102 and the light exit window 105. A second reflector 108 is disposed on the top of the accommodating space 1011, and the light distributed by the reflector 102 and the lens 104 can uniformly reach a second reflecting surface of the second reflector 108, so that the observer can see The second reflecting surface of the second reflector 108 has uniform brightness, so that the lighting device can have better visual beauty and comfort. Furthermore, the light emitted by the light source module 103 is further reflected by the second The second reflecting surface of the device 108 is redistributed through the light exit window 105 to reach the working surface 107, the working surface 107 (such as a table top, the ground, etc.), and the reflecting surface on the second reflector 108 is also optically reflective like the reflector 102. Face 1021, the light can be distributed to the working surface with arbitrary illumination 107, in addition, adjacent to the light window 106 can be further provided with a transparent plate (not shown).

Please refer to FIG. 4, which is another embodiment (2) of the present invention. The light source module 103 of the present invention can also be configured as a side illumination type, and the reflector and the lens can be arbitrarily selected as shown in the figure. The light-emitting illumination system 30 is mainly configured to set the reflector 102, the light source module 103 and the lens 104 on the side of the accommodating space 1011, and the reflector 102 and the lens 104 are respectively disposed on both sides of the light source module 103. Up, the reflector 102 is closer to the top of the accommodating space 1011 The lens is closer to the light exit window 105 below the accommodating space 1011.

Please refer to "figure 5", which is another embodiment (3) of the present invention. As shown in the figure, the invention has a wide application field, and in this embodiment, it can be used for illumination of teaching blackboard or whiteboard. As shown in the figure, a plurality of illumination systems (10, 10', 10" having a reflector and a lens capable of arbitrarily distributing light patterns mainly use a writing surface C of a blackboard (or a whiteboard) as a light receiving surface, that is, A uniform illuminance can be obtained on the writing surface C. Please refer to FIG. 6 again. The figure shows another embodiment (4) of the present invention. As shown in the figure, the reflector and the lens can be evenly matched. The light illumination system (10, 10', 10") may also be disposed in a display cabinet (or display window) D for illuminating the interior of the display cabinet; accordingly, when the invention is applied to illumination, it may be generated The following advantages:

(1) A more uniform illumination is obtained on the display surface of the blackboard (or whiteboard) or on the display surface of the display cabinet, so that the viewer can obtain a better clear and comfortable visual effect to reduce the burden on the eyes.

(2) All light is directed at the writing surface and the display surface, rather than directly into the writer and the viewer's eyes to reduce the discomfort of the writer and the viewer's eyes.

Please refer to "Figure 7", which is another embodiment (5) of the present invention. Please refer to "Figure 1". A conventional illuminator has a transparent mask. In the light-emitting window 105, when a light source such as a light-emitting diode is used, since the directivity of the light-emitting diode is strong, uneven brightness and darkness may be formed on the transparent light-transmitting mask, so that such a illuminator Not aesthetically pleasing; thus, the invention is applied to a luminaire so that The light-transmissive mask on the illuminator has a uniform and bright visual effect. As shown in the figure, the reflector 102, the light source module 103, and the lens 104 are used as a light-emitting device of the illuminator 40, and the light-transmitting mask 401 is used as a light-receiving surface. The transparent mask 401 can be a curved surface or a flat surface, which can produce uniform brightness on the transparent mask 401, thereby improving the appearance of the illuminator 40. Moreover, the transparent mask 401 of the illuminator 40 is optically refracted. And the energy distribution equation is formed into a suitable curved surface, so that the light entering the light-transmitting mask 401 can be guided to a predetermined position of the illuminator 40 to illuminate the light-receiving surface to form a desired illuminance distribution or a uniform illuminance distribution.

Please refer to "Figure 8", which is another embodiment (6) of the present invention. Please refer to "Figure 1". As shown in the figure, the present invention can also be applied to a display system (or a backlight system). In the case of 50, a light-transmissive film 501 is disposed on the light-receiving surface 106 of the light-emitting window 105 of the display system (or backlight system) 50, so that uniform illumination can be formed on the light-transmissive film 501, and the light-transmissive film 501 can be used instead. The light guide plate used in the conventional side light source backlight module can reduce the volume and weight of the backlight module. The housing space 1011 can create a space for a battery 502 and a circuit board 503 to reduce the entire display system (or Backlight system) 50 thickness.

The above description is only for the preferred embodiment of the present invention, and is not intended to limit the scope of the present invention; any changes and modifications made by those skilled in the art without departing from the spirit and scope of the invention All should be covered by the patent of the present invention.

In summary, the effects of the present invention are patents such as "industry availability," "novelty," and "progressiveness" of the invention; the applicant filed an invention patent with the bureau in accordance with the provisions of the Patent Law. Application.

10‧‧‧Lighting system with reflector and lens for arbitrarily distributing light patterns

101‧‧‧Front frame

102‧‧‧ reflector

1011‧‧‧ accommodating space

1021‧‧‧Optical reflective surface

103‧‧‧Light source module

104‧‧‧ lens

1031‧‧‧ bracket

1041‧‧‧ lens into the glossy surface

1032‧‧‧Lighting unit

1042‧‧‧ lens surface

105‧‧‧light window

V1‧‧‧The strongest direction on the light source

109‧‧‧Virtual plane

Claims (20)

An illumination system having a reflector and a lens capable of arbitrarily distributing a light pattern, comprising: a light exit window, a light source module adjacent to one side, two sides or four sides arranged around the light exit window; a lens and a reflector set On the two sides of the light source module, the distance between the lens and the light exit window is smaller than the distance between the reflector and the light exit window; and the strongest direction of a light source of the light source module points to the light exit window, and substantially An imaginary plane parallel to the exit window is vertical. A lens having a reflecting surface and a refractive surface capable of arbitrarily distributing an optical type illumination system, comprising: a light exiting window, a light source module adjacent to one side, two sides or four sides arranged around the light exit window; and a reflecting surface And a lens of the refracting surface is disposed on the light source module, such that a distance between the light-refractive surface of the lens and the light-emitting window is smaller than a distance between the reflecting surface of the lens and the light-emitting window; a strongest direction of a light source of the light source module Pointing to the light exit window and being perpendicular to an imaginary plane substantially parallel to the light exit window; and the material of the lens having the reflective surface and the refractive surface is a light transmissive material, wherein at least one curved surface is applied as a reflective material as a reflection At least one side of the surface is a light incident surface of the lens, and at least one side is a light reflecting surface of the lens, and at least one side is a light reflecting surface of the lens. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 1, wherein the reflector reflecting surface and the refractive surface of the lens are in accordance with a principle of light refraction and reflection ▽Φ=N, θ ₁ = θ ₂ , n ₁ sin θ ₁ = n ₂ sin θ ₂ and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with any predetermined illuminance. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 1, wherein the reflector reflecting surface and the refractive surface of the lens are in accordance with a principle of light refraction and reflection ▽ Φ=N, θ1 = θ2, n1sin θ1 = n2sin θ2 and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with uniform illuminance. The lens having the reflecting surface and the refracting surface according to the second aspect of the patent application can arbitrarily distribute the light type illumination system, wherein the shape of the reflecting surface and the refracting surface of the lens depends on the principle of light refraction and reflection ▽Φ=N, Θ1=θ2, n1sinθ1=n2sinθ2 and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with any predetermined illuminance. The lens having the reflecting surface and the refractive surface according to the second aspect of the patent application can arbitrarily distribute the light type illumination system, wherein the shape of the reflecting surface and the refractive surface of the lens depends on the principle of light refraction and reflection ▽ Φ=N, Θ1=θ2, n1sinθ1=n2sinθ2 and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with uniform illumination. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 1, wherein a light-transmitting mask is disposed adjacent to the light-emitting window, and a reflective surface of the reflector and a shape of a refractive surface of the lens are provided. According to the principle of light refraction and reflection ▽Φ=N, θ1=θ2, n1sinθ1=n2sinθ2 and energy division The recipe program ʃI(Ω)cosΩdΩ=E(A)dA, through which the light from the light source forms a uniform illuminance distribution on the light transmissive mask. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 7, wherein the shape of the light incident surface and the light exit surface of the light transmissive mask is φ=N, n1sin θ1 = n2sin θ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the light emitted from the light-transmitting mask forms an arbitrary predetermined illuminance distribution on the plane of the light-receiving surface. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 7, wherein the shape of the light incident surface and the light exit surface of the light transmissive mask is φ=N, n1sin Θ1=n2sinθ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the light emitted from the light-transmitting mask forms a uniform illuminance distribution on the plane. An illumination system having a reflector and a lens capable of arbitrarily distributing a light pattern, comprising: a light exit window, a light source module adjacent to one side, two sides or four sides arranged around the light exit window; a lens and a reflector set The distance between the lens and the light exit window is smaller than the distance between the reflector and the light exit window; and the strongest direction of a light source of the light source module is substantially parallel to the light output An imaginary plane of the window is parallel. A lens having a reflecting surface and a refractive surface capable of arbitrarily distributing an optical type illumination system, comprising: a light exiting window, a light source module adjacent to a single set around the light exiting window a lens having a reflecting surface and a refractive surface disposed on the light source module such that a distance between the light-refractive surface of the lens and the light-emitting window is smaller than a distance between the reflecting surface of the lens and the light-emitting window The most intense direction of a light source of the light source module is directed to the light exit window, and is parallel to an imaginary plane substantially parallel to the light exit window; and the material of the lens having the reflective surface and the refractive surface is a light transmissive material. At least one of the curved surfaces is applied as a reflective surface as a reflecting surface, and at least one surface is a light incident surface of the lens, and at least one surface is a light reflecting surface of the lens, and at least one surface is a light reflecting surface of the lens. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 10, wherein the reflection surface of the reflector and the refractive surface of the lens are in accordance with a principle of light refraction and reflection ▽Φ=N Θ1=θ2, n1sin θ1=n2sinθ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with any predetermined illuminance. An illumination system having a reflector and a lens capable of arbitrarily distributing a light type according to claim 10, wherein the reflection surface of the reflector and the refractive surface of the lens are in accordance with a principle of light refraction and reflection ▽Φ=N Θ1=θ2, n1sin θ1=n2sinθ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with uniform illuminance. For example, the lens having the reflecting surface and the refracting surface described in claim 11 can arbitrarily distribute the light type illumination system, wherein the shape of the reflecting surface and the refracting surface of the lens depends on the principle of light refraction and reflection ▽Φ=N, Θ1=θ2, n1sin θ1=n2sinθ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, The energy of the light source is distributed on a light receiving surface with any predetermined illumination. For example, the lens having the reflecting surface and the refracting surface described in claim 11 can arbitrarily distribute the light type illumination system, wherein the shape of the reflecting surface and the refracting surface of the lens depends on the principle of light refraction and reflection ▽Φ=N, Θ1=θ2, n1sin θ1=n2sinθ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the energy of the light source can be distributed on a light receiving surface with uniform illuminance. An illumination system having a reflector and a lens capable of arbitrarily distributing a light pattern, comprising: a light exit window, a light source module adjacent to one side, two sides or four sides arranged around the light exit window; a lens and a reflector set On the two sides of the light source module, the distance between the lens and the light exit window is smaller than the distance between the reflector and the light exit window; the strongest direction of a light source of the light source module is away from the light exit window and is substantially parallel An imaginary plane of the light exit window is vertical; and a second reflector is disposed adjacent to the light exit window to face the light exit window, and the reflective surface of the reflector and the refractive surface of the lens are refracted by light Principle and reflection principle ▽Φ=N, θ1=θ2, n1sin θ1=n2sinθ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, a light source from the light source module is in the second reflection A uniform illuminance distribution is formed on the reflecting surface of the reflector. The shape of the reflecting surface of the second reflector depends on the principle of reflection ▽Φ=N, θ1=θ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, Light emitted from the reflective surface of the second reflector is received by the light Forming an arbitrary predetermined illuminance distribution. Illumination system with reflector and lens capable of arbitrarily distributing light type, package Included: a light window, a light source module is disposed adjacent to one side, two sides or all around the light window; a lens and a reflector are disposed on both sides of the light source module, so that the lens and the light window The distance is smaller than the distance between the reflector and the light exit window; the strongest direction of a light source of the light source module is away from the light exit window, and is perpendicular to an imaginary plane substantially parallel to the light exit window; and a second The reflector is disposed adjacent to the light-emitting window so that the reflecting surface faces the light-emitting window, and the reflecting surface of the reflector and the shape of the refractive surface of the lens are based on the principle of light refraction and the principle of reflection ▽Φ=N, θ1=θ2, n1sin θ1= N2sin θ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, a light source from the light source module forms a uniform illuminance distribution on the second reflector reflecting surface, and the second reflector The shape of the reflecting surface depends on the principle of reflection ▽Φ=N, θ1=θ2, and according to the energy distribution equation ʃI(Ω)cosΩdΩ=E(A)dA, the light emitted from the reflecting surface of the second reflector is received by the light A uniform illuminance distribution is formed on the surface. The illumination system of claim 16 or 17, wherein a transparent plate is disposed adjacent to the light exit window. The illumination system of claim 1 or claim 10, wherein a light transmissive film is disposed on the light receiving surface of the light exit window. The illumination system of claim 19, wherein a circuit board or a battery is disposed in a space adjacent to the light receiving surface.