CN112984468A

CN112984468A - Device of side-reflection optical structure for simulating skylight environment

Info

Publication number: CN112984468A
Application number: CN202110428227.6A
Authority: CN
Inventors: 张军
Original assignee: Jilin Yuanda Optics Detection Technology Co ltd
Current assignee: Jilin Yuanda Optics Detection Technology Co ltd
Priority date: 2021-04-21
Filing date: 2021-04-21
Publication date: 2021-06-18

Abstract

The invention belongs to the technical field of simulated skylights and discloses a device for simulating a skylight environment with a side-reflecting optical structure. According to the invention, the light source capable of adjusting the included angle between the light emitting surface and the horizontal plane is arranged in the light chamber, one light source is arranged on each of four side edges of the rectangular light chamber, and light emitted by the light source is reflected by the upper reflecting mirror and the side reflecting mirrors to irradiate on the light homogenizing plate, so that the original locally non-uniform light is homogenized and diffused by diffuse reflection through the light transmitting plate to form a uniform surface type light source for illuminating the environment, the included angle between the light emitting surface of the light source and the horizontal plane is adjusted to realize the distribution of background light intensity at different positions in the simulated sky, and the authenticity is improved.

Description

Device of side-reflection optical structure for simulating skylight environment

Technical Field

The invention belongs to the technical field of simulated skylights, and particularly relates to a device with a side-reflecting optical structure for simulating a skylight environment.

Background

The simulated skylight is an optical device for simulating the skylight effect under natural light, and the device can simulate the effect of sunlight irradiating indoors in a closed room, so that people can experience outdoor sunlight, see sky white clouds and blue sky in the actually closed room, and the simulated skylight is beneficial to relaxing and relaxing the nervous mood of people.

The technology capable of simulating sunlight and sky background light at present is mainly a nanoparticle coating scattering technology, the surface of an optical material is coated with a nanoparticle coating to form a nanoparticle coating, the nanoparticle coating is illuminated by a mixed light source, so that Rayleigh scattering is generated between the mixed light and the nanoparticles to form sky background blue light, the transmittance of the mixed light is controlled by controlling the thickness of the nanoparticle coating, and the sunlight illumination effect is realized.

The invention replaces the complex process and technology of Rayleigh scattering by the side-reflecting optical structure, realizes the skylight scattering effect by a relatively simple technology, and can actively realize the night starry sky background on the basis of simulating skylight.

Disclosure of Invention

The present invention is directed to a device for simulating skylight environment with side-reflecting optical structure, so as to solve the problems mentioned in the above background art.

In order to achieve the above purpose, the invention provides the following technical scheme: the utility model provides a device of side trans-optical structure's simulation skylight environment, includes light source, dustcoat and protects the frame, the light source is provided with four altogether and respectively fixed mounting in four inboard side departments of frame that protect, protect the bottom of frame fixed mounting in dustcoat, the inside fixed mounting of dustcoat has last speculum and side speculum, go up speculum fixed mounting in the top of dustcoat inner chamber, the side speculum is provided with four altogether and respectively fixed mounting in four medial surfaces of dustcoat, side speculum and last speculum constitute the light room jointly, even bare board and light-passing board are installed to the middle part from the top down stromatolite of frame that protects.

Preferably, the two symmetrical lateral surfaces of fender bracket all install receive and release room and step motor, two there are curtain reel and wiring post respectively movable mounting in receiving and releasing the room, the surface of curtain reel and wiring post has been around respectively sky curtain and haulage rope, the sky curtain is connected with the haulage rope, step motor fixed mounting receive and release the outside of room and with receive and release the curtain reel in the indoor chamber and be connected with the wiring post transmission, the bottom fixed mounting of fender bracket has the blank holder strip, and the blank holder strip presses the sky curtain in the fender bracket bottom surface, the joint has the cardboard between blank holder strip and the dustcoat.

Preferably, the light sources are all arranged between the light homogenizing plate and the side reflector on the corresponding side, included angles theta between the light emitting surfaces of the four light sources and the horizontal plane are adjustable, a normal line perpendicular to the light emitting surfaces of the light sources is defined to be 0 degrees, the clockwise direction is a + 90-degree direction, the anticlockwise direction is a-90-degree direction, the illuminance distribution on the light homogenizing plate can be changed by adjusting the included angles theta between the light sources and the horizontal plane, and the light sources adopt but are not limited to the LE fourth light trap D of the initial light W four-color chip of the scattered light RG second light trap B.

Preferably, the light source emits light initial light W which is reflected for the first time by the upper reflector or the side reflector to form primary reflected light F, the primary reflected light F is reflected by the upper reflector or the side reflector to form secondary reflected light T, any light in the light chamber is emitted to the external environment through the light homogenizing plate and the light transmitting plate to form scattered light R, fig. 11 is a distribution curve of the luminous intensity corresponding to the luminous angle of the light source in fig. 10, and the abscissa of the curve is the luminous angle of the light source and ranges from-90 ° to +90 °; the ordinate of the curve is the luminous intensity value, which is a reference value with the maximum luminous intensity of 100%, and the relationship between the luminous angle of the light source and the luminous flux is shown as follows:

phi is luminous flux of the light source; i is the luminous intensity of the light source; alpha is the angle between the initial light ray W and the normal.

The relation between the luminous flux and the luminous angle is obtained through the formula and is a relation of a cosine curve, when the luminous angle is closer to 0 degree, the luminous flux is larger, the irradiated light is stronger, the light falling on the reflector or the light homogenizing plate is stronger, and the reflector or the light homogenizing plate in the area is brighter.

Preferably, the four regions where the light source is located are shielded by the light source body to form a first light trap a, a second light trap B, a third light trap C and a fourth light trap D which cannot reflect light respectively, the light emitted by the light source may irradiate any light trap region after being reflected by the upper reflector or the side reflector, and the light incident into the light trap region is absorbed and is not reflected outwards.

Preferably, the bottom of the inner side surface of the retraction chamber is provided with a strip-shaped groove for the starry sky curtain or the traction rope to pass through, and the length of the strip-shaped groove is matched with the width of the starry sky curtain.

Preferably, the blank holder strip presses the starry sky curtain in a posture parallel to the extending direction of the starry sky curtain, the traction rope is located between the blank holder strip and the protective frame, the blank holder strip presses the starry sky curtain mainly also for the posture consideration of the starry sky curtain, wrinkles are prevented from appearing on the surface of the starry sky curtain, and light transmission quality is ensured.

Preferably, the front end of blank holder is equipped with the lower edge end of buckling downwards, the starry sky curtain alternates into between blank holder and the fender frame through this lower edge end, should follow the end down and be in order to guarantee that the starry sky curtain alternates into between cardboard and the fender frame can unobstructed go on, the tail end of blank holder has been seted up a through-hole and has been supplied the haulage rope to pass, and the through-hole has made things convenient for the current of haulage rope in transmission process on the one hand, and on the other hand its gesture that can stabilize the haulage rope prevents that it from appearing the skew.

Preferably, the appearance of cardboard is "[", the cardboard card is in the lower edge end rear side of blank holder, because the fixed part of blank holder and safety frame is at the tail end of blank holder, the length of blank holder is longer, and this can lead to the lower edge end of blank holder can certain tenesmus because of gravity reason, leads to its lower edge end and anterior part to the pressure that the blank holder was applyed probably not enough, consequently through the lower edge tip part of cardboard card at the blank holder, compensates the pressure of cardboard.

The invention has the following beneficial effects:

1. according to the invention, the light source capable of adjusting the included angle between the light emitting surface and the horizontal plane is arranged in the light chamber, one light source is arranged on each of four sides of the rectangular light chamber, light emitted by the light source is reflected by the upper reflector and the side reflector and irradiates on the light homogenizing plate, so that the original locally non-uniform light is homogenized and is diffused by diffuse reflection through the light transmitting plate to form a uniform surface type light source for illuminating the environment, and the included angle between the light emitting surface of the light source and the horizontal plane is adjusted to realize the simulation of the distribution of background light intensity at different positions in the sky, so that the authenticity is improved.

2. The starry sky curtain device has the advantages that the two stepping motors are started to synchronously run, the curtain winding drum and the rope winding columns respectively release the starry sky curtain and furl the traction rope, the traction rope pulls the starry sky curtain to release, the retraction chamber is shielded, the light source is controlled to emit white light, the light finally shines on the surface of the starry sky curtain, the surface of the light transmitting sheet distributed on the surface of the starry sky curtain is colored, and the effect of starry sky is simulated through the colored light scattered by the light transmitting sheet.

Drawings

FIG. 1 is a schematic external view of the present invention;

FIG. 2 is a half view of the sky curtain of the present invention;

FIG. 3 is a disassembled view of the storage chamber and the protective frame of the present invention;

FIG. 4 is a schematic drawing of the sky curtain with the pull rope of the present invention;

FIG. 5 is an exploded view of the light chamber of the present invention;

FIG. 6 is a top view of the distribution of the light source of the present invention within the light chamber;

FIG. 7 is a cross-sectional view of an optical cell configuration of the present invention;

FIG. 8 is a diagram of an optical indoor light path of the present invention;

FIG. 9 is a schematic diagram of the intensity of light falling on the dodging plate according to the present invention;

FIG. 10 is a schematic view of the light emitting angle of the light source of the present invention;

FIG. 11 is a graph showing the distribution of the light emission angle and the light intensity of the light source according to the present invention.

In the figure: 1. a light source; 2. a light homogenizing plate; 3. a light-transmitting plate; 4. an upper mirror; 5. an optical chamber; 6. a side mirror; 7. a housing; 8. protecting the frame; 9. a storage chamber; 10. a stepping motor; 11. a curtain winding drum; 12. a starry sky curtain; 13. a rope winding column; 14. edge pressing strips; 15. clamping a plate; 16. a hauling rope A and a first light trap; B. a second optical trap; C. a third optical trap; D. a fourth optical trap; w, initial light; F. primary reflection light; t, secondary reflected light; r, scattered light.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

As shown in fig. 1 to 11, in the embodiment of the present invention, a device for simulating a skylight environment with a side-reflecting optical structure includes a light source 1, an outer cover 7 and a protective frame 8, where the light source 1 is provided with four light sources and is respectively and fixedly installed at four side edges inside the protective frame 8, the protective frame 8 is fixedly installed at the bottom of the outer cover 7, an upper reflector 4 and a side reflector 6 are fixedly installed inside the outer cover 7, the upper reflector 4 is fixedly installed at the top of an inner cavity of the outer cover 7, the side reflectors 6 are provided with four light sources and are respectively and fixedly installed at four inner side surfaces of the outer cover 7, the side reflector 6 and the upper reflector 4 together form a light chamber 5, and a light homogenizing plate 2 and a light transmitting plate 3 are installed in a stacked manner from top to bottom.

The two symmetrical outer side surfaces of the protection frame 8 are provided with a winding and unwinding chamber 9 and a stepping motor 10, two winding and unwinding chambers 9 are respectively and movably provided with a curtain winding drum 11 and a rope winding column 13, the surfaces of the curtain winding drum 11 and the rope winding column 13 are respectively connected with a starry sky curtain 12 and a traction rope 16 in a winding manner, the starry sky curtain 12 is connected with the traction rope 16, the stepping motor 10 is fixedly installed on the outer side of the winding and unwinding chamber 9 and is in transmission connection with the curtain winding drum 11 and the rope winding column 13 in the inner cavity of the winding and unwinding chamber 9, the bottom of the protection frame 8 is fixedly provided with a blank-pressing strip 14, the blank-pressing strip 14 presses the starry sky curtain 12 on the bottom surface of the protection frame 8, and a clamping plate 15 is clamped between.

The light source 1 is arranged between the light homogenizing plate 2 and the side reflector 6 on the corresponding side, included angles theta between light emitting surfaces of the four light sources 1 and the horizontal plane are adjustable, a normal line perpendicular to the light emitting surfaces of the light sources 1 is defined to be 0 degrees, the clockwise direction is a + 90-degree direction, the anticlockwise direction is a-90-degree direction, the illuminance distribution on the light homogenizing plate 2 can be changed by adjusting the included angles theta between the light sources and the horizontal plane, and the light sources 1 adopt but are not limited to a scattered light RG second light trap B initial light W fourth light trap D of an LE four-color chip.

The light source 1 emits light initial light W which is reflected for the first time by the upper reflector 4 or the side reflector 6 to form primary reflected light F, the primary reflected light F is reflected by the upper reflector 4 or the side reflector 6 to form secondary reflected light T, any light in the light chamber 5 penetrates through the light homogenizing plate 2 and the light transmission plate 3 to emit to an external environment to form scattered light R, a graph 11 is a distribution curve of luminous intensity corresponding to a luminous angle of the light source in the graph 10, and the abscissa of the curve is the luminous angle of the light source and ranges from-90 degrees to +90 degrees; the ordinate of the curve is the luminous intensity value, which is a reference value with the maximum luminous intensity of 100%, and the relationship between the luminous angle of the light source and the luminous flux is shown as follows:

The areas where the four light sources 1 are located are shielded by the light source 1 body to form a first light trap A, a second light trap B, a third light trap C and a fourth light trap D which cannot reflect light rays respectively, the light rays emitted by the light sources 1 are reflected by the upper reflecting mirror 4 or the side reflecting mirror 6 and then may irradiate any light trap area, and the light rays incident into the light trap area are absorbed and are not reflected outwards.

Wherein, the bottom of the medial surface of the room 9 is all seted up the bar groove and is supplied starry sky curtain 12 or haulage rope 16 to pass, and the length of bar groove and the width looks adaptation of starry sky curtain 12.

The edge pressing strip 14 presses the starry sky curtain 12 in a posture parallel to the extending direction of the starry sky curtain 12, the traction rope 16 is located between the edge pressing strip 14 and the protective frame 8, the edge pressing strip 14 presses the starry sky curtain 12 mainly for the posture of the starry sky curtain 12, wrinkles are prevented from appearing on the surface of the starry sky curtain 12, and light transmission quality is guaranteed.

Wherein, the front end of blank holder 14 is equipped with the lower edge end of buckling downwards, sky curtain 12 alternates into between blank holder 14 and the fender frame 8 through this lower edge end, this lower edge end is in order to guarantee that sky curtain 12 alternates into between cardboard 15 and the fender frame 8 can unobstructed go on, a through-hole has been seted up to the tail end of blank holder 14 and has been supplied haulage rope 16 to pass, the through-hole has made things convenient for the current of haulage rope 16 in transmission process on the one hand, on the other hand its gesture that can stabilize haulage rope 16, prevent that it from appearing the skew.

The clamping plate 15 is in a [ "shape, the clamping plate 15 is clamped at the rear side of the lower edge end of the edge pressing strip 14, the edge pressing strip 14 and the protection frame 8 are fixed at the tail end of the edge pressing strip 14, the length of the edge pressing strip 14 is long, certain falling can occur at the lower edge end of the edge pressing strip 14 due to gravity, pressure applied to the edge pressing strip 14 by the lower edge end and the front part of the edge pressing strip is possibly insufficient, and therefore pressure of the clamping plate 15 is compensated by clamping the clamping plate 15 at the lower edge end part of the edge pressing strip 14.

The working principle and the using process are as follows:

as shown in FIG. 8, α > 0 when the included angle α of the light ray is on the right side of the normal, and α < 0 on the left side; when the light source is inclined at an angle theta;

when the light included angle alpha satisfies 0 < alpha < delta, the light of the light source is reflected to the light homogenizing plate by the side reflecting mirror 6 to form scattered light on the light homogenizing plate 2 and is projected out through the light transmitting plate;

when the light ray included angle alpha meets the condition that alpha is larger than delta, the light of the light source is reflected to the upper reflector 4 by the side reflector 6 and is reflected to the light homogenizing plate 2 again through the upper reflector 4;

when the included angle alpha of the light ray meets the condition that gamma is more than alpha and less than 0, the light of the light source is reflected by the side reflecting mirror 6, reflected to the inside of the first light trap A by the side reflecting mirror 6 and then absorbed;

when the included angle alpha of the light ray satisfies that beta + gamma is more than alpha and less than 0, the light of the light source is reflected to the side reflecting mirror 6 by the upper reflecting mirror 4 and is reflected to the light homogenizing plate 2 again through the side reflecting mirror 6.

E is the illuminance; s light receiving area, and combining the light source lighting angle-illuminance formula, it can be obtained that the illuminance covered by the left area on the light uniformizing plate 2 is stronger, and the illuminance covered by the right area is weaker, as shown in fig. 9, and by combining the above explanations, when there is light source lighting at the first light trap a side, the light distribution on the light uniformizing plate is as shown in the first diagram, when there is light source lighting at the second light trap B side, the light distribution on the light uniformizing plate is as shown in the second diagram, and when there is light source lighting all around, the light distribution on the light uniformizing plate is as shown in the third diagram.

From the above, the light source at the second light trap B is opposite to the light source at the first light trap a to the light uniformizing plate 2, so that the light intensity of the light source at the second light trap B to the right side area of the light uniformizing plate 2 is stronger, and the light intensity of the light source at the left side area is weaker, and in the same way, the light source at the third light trap C and the fourth light trap D to the light uniformizing plate 2 area near the light source is stronger, and the light intensity of the light uniformizing plate 2 area far away from the light source is weaker, and the light irradiates the light uniformizing plate 2, so that the light is uniformized by the light uniformizing plate, so that the local non-uniform light is uniformized and projected out through the light transmitting plate 3, thereby forming a surface type light source for illuminating the environment, and the sizes of beta, gamma, alpha and delta can be changed by adjusting the included angle theta between the light source and the horizontal plane, so as to change the light intensity distribution on the, thereby realizing the simulation of dynamic sky background light environment such as sunrise, sunset, cloud and sun shading.

And at night, the two stepping motors 10 can be started to synchronously run, the starry sky curtain 12 is pulled out through the traction rope 16 to cover the accommodating chamber 9, the surface of the starry sky curtain 12 is black, the light transmitting sheets capable of projecting light are dotted on the surface of the starry sky curtain 12, the light transmitting sheets are arranged in a gorgeous starry sky background, white light is emitted through the light source 1, light finally shines on the surface of the starry sky curtain 12, the surface of the light transmitting sheets is colored, and the effect of starry sky is simulated through colored light which is scattered by the light transmitting sheets.

It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A device for simulating skylight environment with side-reflecting optical structure comprises a light source (1), an outer cover (7) and a protective frame (8), and is characterized in that: the light source (1) is provided with four and is respectively fixedly installed at four side edges of the inner side of a protective frame (8), the protective frame (8) is fixedly installed at the bottom of an outer cover (7), an upper reflector (4) and a side reflector (6) are fixedly installed inside the outer cover (7), the upper reflector (4) is fixedly installed at the top of the inner cavity of the outer cover (7), the side reflector (6) is provided with four and is respectively fixedly installed at four inner side surfaces of the outer cover (7), the side reflector (6) and the upper reflector (4) jointly form a light chamber (5), and a light homogenizing plate (2) and a light transmitting plate (3) are installed in the middle of the protective frame (8) in a stacked mode from top to bottom.

2. The device for simulating skylight environment of a side-reflecting optical structure according to claim 1, wherein: two symmetrical lateral surfaces of cradle (8) all install and receive and release room (9) and step motor (10), two it has curtain reel (11) and wiring post (13) to receive and release respectively movable mounting in room (9), the surface of curtain reel (11) and wiring post (13) has been around respectively sky curtain (12) and haulage rope (16), sky curtain (12) are connected with haulage rope (16), step motor (10) fixed mounting receive and release the outside of room (9) and with receive and release curtain reel (11) and wiring post (13) transmission in room (9) inner chamber and be connected, the bottom fixed mounting of cradle (8) has blank holder strip (14), and blank holder strip (14) presses sky curtain (12) in cradle (8) bottom surface, the joint has cardboard (15) between blank holder strip (14) and dustcoat (7).

3. The device for simulating skylight environment of a side-reflecting optical structure according to claim 1, wherein: the light sources (1) are arranged between the light homogenizing plate (2) and the side reflecting mirror (6) on the corresponding side, and included angles theta between the light emitting surfaces of the four light sources (1) and the horizontal plane are adjustable.

4. The device for simulating skylight environment of a side-reflecting optical structure according to claim 3, wherein: the light source (1) emits initial light W, the initial light W is reflected for the first time through the upper reflector (4) or the side reflector (6) to form primary reflected light F, the primary reflected light F is reflected through the upper reflector (4) or the side reflector (6) to form secondary reflected light T, and any light penetrates through the light homogenizing plate (2) and the light transmitting plate (3) and is emitted to an external environment to form scattered light R.

5. The device for simulating skylight environment of a side-reflecting optical structure according to claim 4, wherein: the four areas where the light source (1) is located are shielded by the light source (1) body to form a first light trap A, a second light trap B, a third light trap C and a fourth light trap D which cannot reflect light rays.

6. The device for simulating skylight environment of a side-reflecting optical structure according to claim 2, wherein: the bottom of the inner side surface of the retraction chamber (9) is provided with a strip-shaped groove for the starry sky curtain (12) or a traction rope (16) to pass through, and the length of the strip-shaped groove is matched with the width of the starry sky curtain (12).

7. The device for simulating skylight environment of a side-reflecting optical structure according to claim 2, wherein: the edge pressing strip (14) presses the starry sky curtain (12) in a posture parallel to the extending direction of the starry sky curtain (12), and the traction rope (16) is located between the edge pressing strip (14) and the protective frame (8).

8. The apparatus for simulating a skylight environment of a trans-side optical structure of claim 7, wherein: the front end of blank holder (14) is equipped with the lower edge end of buckling downwards, sky curtain (12) are inserted into between blank holder (14) and the fender frame (8) through this lower edge end, the tail end of blank holder (14) has been seted up a through-hole and has been supplied haulage rope (16) to pass.

9. The device for simulating skylight environment of a side-reflecting optical structure according to claim 2, wherein: the clamping plates (15) are in a [ -shape, and the clamping plates (15) are clamped at the rear sides of the lower edge ends of the edge pressing strips (14).