CN203673203U - Annular illumination adapter - Google Patents
Annular illumination adapter Download PDFInfo
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- CN203673203U CN203673203U CN201320863821.9U CN201320863821U CN203673203U CN 203673203 U CN203673203 U CN 203673203U CN 201320863821 U CN201320863821 U CN 201320863821U CN 203673203 U CN203673203 U CN 203673203U
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- ring
- shaped lighting
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- 238000005286 illumination Methods 0.000 title claims abstract description 29
- 230000003287 optical effect Effects 0.000 claims description 67
- 238000009434 installation Methods 0.000 claims description 15
- 238000013459 approach Methods 0.000 claims description 10
- 238000009792 diffusion process Methods 0.000 claims description 8
- 101100129500 Caenorhabditis elegans max-2 gene Proteins 0.000 claims description 4
- 230000000149 penetrating effect Effects 0.000 claims description 4
- 239000007787 solid Substances 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 230000008719 thickening Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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Abstract
The utility model provides an annular illumination adapter which can realize excellent illumination for a short-distance shot object. The annular illumination adapter has an annular illumination optics system and a mounting portion, wherein the annular illumination optics system has an incident face for incidence of light emitted by a light source, an annular emitting face having an opening portion for emitting the incident light of the incident face taken as the annular illumination light, and an annular diffuse reflection face which is arranged opposite to the emitting face and has a sliding face and fine convex configurations or fine concave configurations which are discretely arranged on the sliding face. The incident light of the incident face is guided to the emitting face, the emitting face has a Toric face type sliding face, the more the Toric face type sliding face is close to a center of the opening portion , the more a normal of a face at an emitting side is close to the center of the opening portion, the mounting portion can be mounted on a shooting device to make the incident face of the annular illumination optics system configure in front of the light source, and the emitting face is at a place surrounding a light path of a shooting optics system.
Description
Technical field
The utility model relates to the ring-shaped lighting adapter using in camera etc.
Background technology
In the past, as the ring-shaped lighting adapter that is applicable to the photomacrographs such as camera head, for example, be known to the lighting device that patent documentation 1 is recorded.The lighting device that patent documentation 1 is recorded will be converted to the light source of ring-type from the light of light source.
[patent documentation 1] TOHKEMY 2005-258011 communique
But in the disclosed optical system of patent documentation 1, exit facet is plane, do not consider the illumination of the subject that the optical system of close-range photography, for example ring-type surrounds.
Utility model content
The utility model, in view of this problem, provides the ring-shaped lighting adapter that can carry out to in-plant subject good illumination.
In order to solve above-mentioned problem and to realize object, ring-shaped lighting adapter of the present utility model has ring-shaped lighting optical system and installation portion, and ring-shaped lighting optical system has: the plane of incidence, the light incident that it sends for light source; The exit facet of ring-type, it has for the illumination light using the light that incides the plane of incidence as ring-type and the peristome penetrating; And the diffuse surface of ring-type, itself and exit facet arranged opposite, there is sliding surface and arranged discrete fine protruding structure or the fine recessed structure on sliding surface, to guide to exit facet from the light of plane of incidence incident, the normal that exit facet has a face of the center that more approaches peristome, exiting side more approaches the sliding surface of the Toric surface shape at the center of peristome, installation portion can be arranged on camera, to make the plane of incidence of ring-shaped lighting optical system be configured in the front of light source, and make exit facet be positioned at the place of the light path of surrounding photographic optical system.
According to the utility model, can provide the ring-shaped lighting adapter that can carry out to in-plant subject good illumination.
Accompanying drawing explanation
Fig. 1 is the front view (FV) of the ring-shaped lighting adapter of embodiment.
Fig. 2 is the sectional view dissecing along the II-II ' line of Fig. 1, is the sectional view of observing from the top of Fig. 1.
Fig. 3 is ring-shaped lighting adapter and the installation portion of camera and the stereographic map of light source that embodiment is shown.
Fig. 4 illustrates the stereographic map that the ring-shaped lighting adapter of embodiment is assemblied in to the state on camera.
Fig. 5 is the stereographic map of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment.
Fig. 6 is the front view (FV) of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment.
Fig. 7 is the sectional view dissecing along the VII-VII ' line of Fig. 6, is the sectional view of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment.
Fig. 8 is the side view of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment.
Fig. 9 is the back view that the structure at the back side of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment is shown.
Figure 10 is the side view that the fine protruding structure at the back side of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment is shown.
Figure 11 is the planimetric map that the configuration of the fine protruding structure at the back side of the ring-shaped lighting optical system of the ring-shaped lighting adapter of embodiment is shown.
Figure 12 is the planimetric map that the variation of the configuration of the fine protruding structure at the back side of ring-shaped lighting optical system is shown.
Figure 13 is the planimetric map that the variation of the configuration of the fine protruding structure at the back side of ring-shaped lighting optical system is shown.
Label declaration
1: camera; 2: ring-shaped lighting adapter; 3a, 3b: installation portion; 4: light source; 5: ring-shaped lighting optical system; 6: the plane of incidence; 7: exit facet; 7a: peristome; 7c: center; 8: sliding surface (even surface); 9: fine protruding structure; 10: diffuse surface; 11: the 1 reflecting parts; 12: the 2 reflecting parts; 12a, 12b, 12c, 12d: the reflecting surface of the 2nd reflecting part; 13: light-blocking member; 13a: outside shading wall; 13b: inner side shading wall; 14: positioning convex portion; 15: shading cover; 16: adapters openings portion.
Embodiment
Below, with reference to the accompanying drawings the embodiment of ring-shaped lighting adapter of the present utility model is elaborated.In addition, the utility model be can't help this embodiment and is limited.
[the 1st embodiment]
Fig. 1 is the front view (FV) of ring-shaped lighting adapter 2.Fig. 2 is the vertical view of the state that dissects and observe from top along II-II ' in the ring-shaped lighting adapter 2 of Fig. 1.Fig. 5 is the stereographic map of the ring-shaped lighting optical system 5 of ring-shaped lighting adapter 2.Fig. 6 is the front view (FV) of the ring-shaped lighting optical system 5 of ring-shaped lighting adapter 2.Fig. 7 is the sectional view dissecing along the VII-VII ' line of Fig. 6, is the sectional view of the ring-shaped lighting optical system 5 of ring-shaped lighting adapter 2.Fig. 8 is the side view of the ring-shaped lighting optical system 5 of ring-shaped lighting adapter 2.Fig. 9 is the back view that the structure at the back side of the ring-shaped lighting optical system 5 of ring-shaped lighting adapter 2 is shown.
The ring-shaped lighting adapter 2 of present embodiment has ring-shaped lighting optical system 5(Fig. 1) and installation portion 3a(Fig. 2).
Ring-shaped lighting optical system 5 has: the plane of incidence 6, it is for light source 4(Fig. 3) the light incident of sending; The exit facet 7 of ring-type, it has for the illumination light using the light that incides the plane of incidence 6 as ring-type and the peristome 7a penetrating; And the diffuse surface 10 of ring-type, itself and exit facet 7 arranged opposite, there is sliding surface 8 and arranged discrete fine protruding structure 9(Fig. 9 on sliding surface 8) or fine recessed structure, to guide to exit facet 7 from the light of the plane of incidence 6 incidents, the normal that exit facet 7 has a face that more approaches peristome 7a center 7c, exiting side more approaches the sliding surface (Fig. 6, Fig. 7) of the Toric surface shape of peristome 7a center 7c.
Here be made as the mounting means of peg type.Present embodiment is not limited to this certainly.It can be also for example screw type mounting means.
Ring-shaped lighting adapter 2 is configured to, and in the time being assemblied on camera 1, the center of gravity of the optical axis AX of the photographic optical system of camera 1 and the adapters openings portion 16 through ring-shaped lighting adapter 2 the line L2 vertical with adapters openings portion 16 are consistent with each other.
Thus, be directed to the photographic optical system of camera 1 through the light of adapters openings portion 16.
In camera 1, the light source 4 of LED is configured in the side of flashlamp 21.The mode that ring-shaped lighting adapter 2 is positioned at the dead ahead of light source 4 with the plane of incidence 6 of ring-shaped lighting optical system 5 is assemblied in (Fig. 3, Fig. 4) on camera 1.
Ring-shaped lighting optical system 5 has the exit facet 7 of ring-type, and this exit facet 7 has for the illumination light using the light that incides the plane of incidence 6 as ring-type and the peristome 7a penetrating.
And ring-shaped lighting optical system 5 has the diffuse surface 10 of ring-type, this diffuse surface 10 and exit facet 7 arranged opposite, will guide to exit facet 7 from the light of the plane of incidence 6 incidents.Diffuse surface 10 has sliding surface 8(diffuse surface slip plane) and arranged discrete fine protruding structure 9(Fig. 9 on sliding surface 8).Fine protruding structure 9 is that a part is from the outstanding dome shape of the sliding surface 8 of diffuse surface 10 (Figure 10).
Here, replacing the fine protruding structure 9 of giving prominence to laterally from sliding surface 8, can be also the fine recessed structure caving in to the inside.
Here, ring-shaped lighting optical system 5 has through peristome 7a center 7c and the axle L5 vertical with diffuse surface 10.Ring-shaped lighting optical system 5 is arranged in ring-shaped lighting adapter 2, so that axle L5 is positioned at through on the center of gravity of the adapters openings portion 16 of ring-shaped lighting adapter 2 and the line L2 vertical with adapters openings portion 16.
By ring-shaped lighting adapter 2 is installed on camera 1 via installation portion 3a, 3b, the plane of incidence of ring-shaped lighting optical system 56 is configured in to the front of light source 4, and exit facet 7 is configured in to the place of the light path of the photographic optical system of surrounding camera 1.
In sliding surface 8 in diffuse surface 10, the incident angle of light is larger, and the most light that guide to sliding surface 8 from light source 4 carry out total reflection repeatedly.
About the light inciding after reflection in the just sliding surface 8 in diffuse surface 10 as the exit facet 7 of the sliding surface of Toric surface shape, because incident angle is larger, so most light carries out total reflection repeatedly.
The light that incides the fine protruding structure 9 in diffuse surface 10 carries out diffuse reflection by the effect of the concave inner surface reflection of fine protruding structure, in this irreflexive light, incide and in the face of Toric surface shape, be subject to lensing as the light of the exit facet 7 of the sliding surface of Toric surface shape and reflect transmission using less incident angle, become illumination light.
Here, the in the situation that of using fine recessed structure replacing fine protruding structure 9, the light that incides fine recessed structure carries out diffuse reflection by the effect of the protruding internal surface reflection of fine recessed structure, in this irreflexive light, incide and in the face of Toric surface shape, be subject to lensing as the light of the exit facet 7 of the sliding surface of Toric surface shape and reflect transmission using less incident angle, become illumination light.
About the refraction in the sliding surface of the Toric surface shape in exit facet 7, diffusing in fine protruding structure 9 reflected in wider scope.
Especially, because the face of the inner side of the sliding surface of Toric surface shape reflects light in the mode that approaches peristome 7a center 7c, so, can carry out near the illumination of object ring-shaped lighting adapter 2.
By the ring-shaped lighting adapter 2 of this structure being arranged on the camera heads such as camera 1 via installation portion 3a, 3b, making in the close-range photography of deficiency in light quantity due to the shadow of camera head, also can carry out the uneven less photography of light quantity by the illumination of ring-type.
In addition, the illumination of ring-type means from the state of surrounding's guiding illumination light of camera axis, is not to be necessary for continuous ring-shaped light.
And, as embodiment described above, to observe from object side, the situation that fine protruding structure or fine recessed structure move as multiple pointolites is also contained in the illumination of ring-type.
And in the present embodiment, the sliding surface 8 in diffuse surface 10 is even surface.By the reflection in this even surface, can fully guarantee light communication function, can realize the slimming of ring-shaped lighting adapter 2.
And, there is even surface 8 and fine protruding structure 9(or fine recessed structure in the region of diffusion function) the ratio of area meet following conditional (1).
0.1<SS/（SF+SS）<0.5 （1）
Here,
SF is the area with the even surface 8 in the region of diffusion function,
SS has fine protruding structure 9 in the region of diffusion function or the area of fine recessed structure.
By being made as the lower limit that is not less than conditional (1), guarantee fine protruding structure, the shared area of fine recessed structure, guarantee diffusion function.
By being made as not higher than the upper limit of conditional (1), guarantee the area that even surface is shared, guarantee the reflection of light based in even surface and the communication function that realizes, reduce light quantity inequality.
And ring-shaped lighting optical system 5 has makes the 1st reflecting part 11(reflecting surface that reflects from the light of the plane of incidence 6 incidents) and the 2nd reflecting part 12(reflecting surface that makes the light of reflection the 1st reflecting part 11 carry out obtuse angle reflection).In the 1st reflecting part 11, a part of light of reflection or not in the 2nd reflecting part 12, and incides the sliding surface of the Toric surface shape of exit facet 7.In the 1st reflecting part 11, another part light of reflection reflects in reflecting surface 12a, the 12b of the 2nd reflecting part 12,12c, 12d, incides the sliding surface of the Toric surface shape of exit facet 7.
According to this structure, reduce the light loss from light source 4, light is guided to exit facet 7 or the diffuse surface 10 of ring-type.
And, 2 reflecting surface 12a, 12b that the 2nd reflecting part 12 has mutual arranged opposite and makes the reflected light in the 1st reflecting part 11 carry out obtuse angle reflection, these 2 reflecting surface 12a, 12b are configured to, from the 1st reflecting part 11 more away from, these 2 reflecting surface 12a, 12b are mutually nearer.
Thus, reduce the light loss from light source 4, light is guided to exit facet 7 or the diffuse surface 10 of ring-type.
And, 2 reflecting surface 12c, 12d that the 2nd reflecting part 12 has mutual arranged opposite and makes the reflected light in the 1st reflecting part 11 carry out obtuse angle reflection, these 2 reflecting surface 12c, 12d are configured to, from the 1st reflecting part 11 more away from, these 2 reflecting surface 12c, 12d are mutually nearer.
Thus, reduce the light loss from light source 4, light is guided to exit facet 7 or the diffuse surface 10 of ring-type.
The ring-shaped lighting adapter 2 of present embodiment meets following conditional (2), (3), (4).
1.1<R
out/R
in<1.8 （2）
1<（R
out-R
in）/R
min<3 （3）
0.5<D
max/R
min<2 （4）
Here,
R
inthe radius of the peristome of the exit facet 7 of ring-type,
R
outthe radius of the periphery of the exit facet 7 of ring-type,
R
minthe radius-of-curvature at the vertex of surface place in cross section in the face of Tuo Like shape of exit facet 7, radius-of-curvature minimum,
D
maxit is the maximal value of the distance of the sliding surface from sliding surface 8 to exit facet 7 in the normal direction of the sliding surface 8 of diffuse surface 10.
By being made as the lower limit that is not less than conditional (2), guarantee the area of diffuse surface 10, become and can fully guarantee fine protruding structure 9(or fine recessed structure) the structure of quantity, improved illumination uniformity of light, suppressed the illumination light inequality of photographs.
By being made as the not upper limit higher than conditional (2), ring-shaped lighting adapter 2 self can thickening, easily makes camera head approach photography target object.
By being made as the lower limit that is not less than conditional (3), (4), increase the amount of refraction as the exit facet 7 of the sliding surface of Tuo Like shape, guarantee to approach the illumination light quantity in the region of ring-shaped lighting adapter 2.
By being made as the not upper limit higher than conditional (3), (4), ring-shaped lighting adapter 2 self can thickening.
And, the fine protruding structure 9(or the fine recessed structure that in diffuse surface 10, form) the conditional (5) of quantity X below meeting.
100<X （5）
By being made as the lower limit that is not less than conditional (5), guaranteed to observe from subject the quantity of the fine protruding structure 9 moving as light source, guarantee illumination light quantity.And, even because the size that reduces each fine protruding structure 9 also can be guaranteed the light quantity of throwing light on, so, reduce the thickness of fine protruding structure 9 and realized slimming.
And then, fine protruding structure 9(or fine recessed structure) quantity X meet following conditional (5-1).
300<X （5-1）
By fully guaranteeing fine protruding structure 9(or fine recessed structure) quantity, improved illumination uniformity of light.
And the optical routing solid dielectric from the plane of incidence 6 to exit facet 7 forms, and will guide to exit facet 7 from the light of the plane of incidence 6 incidents by the internal surface reflection in this solid dielectric.
Thus, the quantity of parts can be reduced, manufacturing cost can be reduced.
Ring-shaped lighting optical system 5 can consist of the impact briquetting of for example plastic material, injection mo(u)lding.
By outside shading wall 13a is set, reduce illumination light and leaked into outside amount, and, reduce the damage of ring-shaped lighting optical system 5.
And, in light-blocking member 13, be provided with inner side shading wall 13b(Fig. 2 of tubular shorter than ring-shaped lighting optical system 5 in the direction along axle L5 in the inner side in the interior week of ring-shaped lighting optical system 5).
By inner side shading wall 13b is set, the photographic optical system that the light leaking from the illumination light of exit facet 7 outgoing with from the tapering in interior week of ring-shaped lighting optical system 5 can directly not enter camera 1, thus, has improved image quality.
And then, in light-blocking member 13, be provided with the hole portion (not shown) that the light of the light source from camera 14 is guided to the plane of incidence 6 of ring-shaped lighting optical system 5.
And light-blocking member 13 has shading cover 15(Fig. 1 that the unwanted light to seeing through the 1st reflecting part 11 and the 2nd reflecting part 12 carries out shading).
As variation, also can be configured to, do not use shading cover 15, the light that sees through the 1st reflecting part 11 and the 2nd reflecting part 12 can for example, throw light on to the subject at a distant place (about 30cm place).
Figure 10 is the side view that the fine protruding structure 9 at the back side of the ring-shaped lighting optical system 5 of ring-shaped lighting adapter 2 is shown.
The microstructure of diffuse surface 10 is the fine protruding structures 9 shown in Figure 10, and this fine protruding structure 9 is dome shape, meets following conditional (6).
0.3<D
max2/R
min2<0.8 （6）
Here,
R
min2the radius-of-curvature at the vertex of surface place of fine protruding structure 9,
D
max2it is the maximal value of the distance of the vertex of surface from sliding surface 8 to fine protruding structure 9 in the normal direction of the sliding surface 8 of diffuse surface 10.
By being made as the lower limit that is not less than conditional (6), can fully guarantee the diffusion function of diffuse surface 10.
By being made as not higher than the upper limit of conditional (6), make easy manufacture.
In the present embodiment, transparent plastic is flowed in metal pattern, ring-shaped lighting optical system 5 is carried out to moulding.Make ring-shaped lighting optical system 5 after moulding become the shape of the easy demoulding in the time of the demoulding.
And, in ring-shaped lighting optical system 5, there is the positioning convex portion 14 for carrying out the location between light-blocking member 13 at outer peripheral face.
Figure 11 is the planimetric map that the configuration (pattern) of the fine protruding structure 9 at the back side of the ring-shaped lighting optical system 5 of the ring-shaped lighting adapter 2 of present embodiment is shown.Figure 12 is the planimetric map that the variation of the configuration of the fine protruding structure at the back side of ring-shaped lighting optical system is shown.Figure 13 is the planimetric map that the variation of the configuration of the fine protruding structure at the back side of ring-shaped lighting optical system is shown.Figure 11, Figure 12, Figure 13 only extract the figure that the part at the back side of ring-shaped lighting optical system 5 is described, and fine protruding being configured in not shown scope in each figure also formed by same pattern.
In the present embodiment, each vertex of surface of fine protruding structure 9 is got the fine and closely woven configuration of six sides (Figure 11).In ring-shaped lighting adapter of the present utility model, be not limited to this configuration, can be also the fine protruding structure of the rectangular arranged being configured according to distance B 1 shown in Figure 12.And, as shown in figure 13, can be to be also arranged in two concentric arrangement on concentric circles C1, C2.
Numeric data in concrete numerical example and the variation of present embodiment and the configuration pattern of fine protruding structure are below shown.
[embodiment]
[embodiment 1]
Structure below the ring-shaped lighting adapter of embodiment 1 adopts in described the 1st embodiment.
The radius R of the peristome of the exit facet 7 of ring-type
in=15.0mm
The radius R of the periphery of the exit facet 7 of ring-type
out=22.0mm
The radius of curvature R at the vertex of surface place in cross section in the face of the Tuo Like shape of exit facet 7, radius-of-curvature minimum
min=3.0mm
The maximal value D of the distance of the sliding surface from sliding surface 8 to exit facet 7 in the normal direction of the sliding surface 8 of the diffuse surface 10 of ring-type
max=3.0mm
The radius R of the peristome of the diffuse surface 10 of ring-type
in2=16.0mm
The radius of curvature R at the vertex of surface place of the fine protruding structure 9 of diffuse surface 10
min2=0.3mm
The maximal value D of the distance of the vertex of surface from sliding surface 8 to fine protruding structure 9 in the normal direction of the sliding surface 8 of diffuse surface 10
max2=0.15mm
Vertex of surface spacing=the 1.0mm of fine protruding structure 9
Configuration: six sides are fine and closely woven
Numerical value in each conditional is below shown.
SS/（SF+SS）≒0.245
R
out/R
in≒1.467
（R
out-R
in）/Rmin≒2.333
D
max/R
min=1.000
X≒800
D
max2/R
min2=0.5
[variation]
The numerical example of variation is below shown.
R
min2change in the scope of=0.2～0.5mm
D
max2change in the scope of=0.1～0.3mm
Change in the scope of the vertex of surface spacing=0.2～2.0mm of fine protruding structure
Configuration: six sides are fine and closely woven, any one in concentric circles, rectangular arranged
In addition, the utility model is not limited to described embodiment and embodiment, can carry out various changes.
As mentioned above, ring-shaped lighting adapter of the present utility model is useful in the photomacrograph for in-plant subject.
Claims (13)
1. a ring-shaped lighting adapter, is characterized in that,
Described ring-shaped lighting adapter has ring-shaped lighting optical system and installation portion,
Described ring-shaped lighting optical system has:
The plane of incidence, the light incident that it sends for light source;
The exit facet of ring-type, it has for the illumination light using the light that incides the described plane of incidence as ring-type and the peristome penetrating; And
The diffuse surface of ring-type, itself and described exit facet arranged opposite, have sliding surface and arranged discrete fine protruding structure or the fine recessed structure on described sliding surface, will guide to described exit facet from the light of described plane of incidence incident,
The normal that described exit facet has a face of the center, the exiting side that approach described peristome approaches the sliding surface of the Toric surface shape at the center of described peristome,
Described installation portion can be arranged on described camera, makes the described plane of incidence of described ring-shaped lighting optical system be configured in the front of described light source, and makes described exit facet be positioned at the place of the light path of surrounding photographic optical system.
2. ring-shaped lighting adapter according to claim 1, is characterized in that,
Described sliding surface in described diffuse surface is even surface.
3. ring-shaped lighting adapter according to claim 2, is characterized in that,
The ratio with the area of described even surface in the region of diffusion function and described fine protruding structure or described fine recessed structure meets following conditional (1):
0.1<SS/（SF+SS）<0.5 （1）
Here,
SF is the area with the described even surface in the region of diffusion function,
SS has described fine protruding structure in the region of diffusion function or the area of described fine recessed structure.
4. ring-shaped lighting adapter according to claim 1, is characterized in that,
Described ring-shaped lighting optical system has to be made the 1st reflecting part reflecting from the light of described plane of incidence incident and makes the light reflecting described the 1st reflecting part carry out the 2nd reflecting part of obtuse angle reflection, the a part of light reflecting in described the 1st reflecting part does not incide the sliding surface of described Toric surface shape via described the 2nd reflecting part, another part light reflecting in described the 1st reflecting part incides the sliding surface of described Toric surface shape via described the 2nd reflecting part.
5. ring-shaped lighting adapter according to claim 4, is characterized in that,
2 reflectings surface that the 2nd reflecting part at least has arranged opposite and makes the reflected light in described the 1st reflecting part carry out obtuse angle reflection, these 2 reflectings surface are configured to, from described the 1st reflecting surface more away from, these 2 reflectings surface are nearer.
6. ring-shaped lighting adapter according to claim 1, is characterized in that,
Meet following conditional (2), (3), (4):
1.1<R
out/R
in<1.8 （2）
1<（R
out-R
in）/R
min<3 （3）
0.5<D
max/R
min<2 （4）
Here,
R
inthe radius of the peristome of the exit facet of ring-type,
R
outthe radius of the periphery of the exit facet of ring-type,
R
minthe radius-of-curvature at the vertex of surface place on the cross section of the radius-of-curvature minimum in the face of Tuo Like shape of exit facet,
D
maxit is the maximal value of the distance of the sliding surface from sliding surface to exit facet in the normal direction of the sliding surface of diffuse surface.
7. ring-shaped lighting adapter according to claim 1, is characterized in that,
Conditional (5) below the described fine protruding structure forming in described diffuse surface or the quantity X of described fine recessed structure meet:
100<X （5）。
8. ring-shaped lighting adapter according to claim 7, is characterized in that,
Conditional (5-1) below the described fine protruding structure forming in described diffuse surface or the quantity X of described fine recessed structure meet:
300<X （5-1）。
9. ring-shaped lighting adapter according to claim 1, is characterized in that,
Optical routing solid dielectric from the described plane of incidence to described exit facet forms, and will guide to described exit facet from the light of described plane of incidence incident by the internal surface reflection in described solid dielectric.
10. ring-shaped lighting adapter according to claim 9, is characterized in that,
Described installation portion is made up of the light-blocking member of the parts as different from described ring-shaped lighting optical system, and the shading wall that described light-blocking member arranges by the position of the periphery in the described ring-shaped lighting optical system of encirclement the tubular that Length Ratio ring-shaped lighting optical system is long forms.
11. ring-shaped lighting adapters according to claim 9, is characterized in that,
Described installation portion is made up of the light-blocking member of the parts as different from described ring-shaped lighting optical system, and the shading wall that described light-blocking member arranges the short tubular of Length Ratio ring-shaped lighting optical system by the inner side in the interior week in described ring-shaped lighting optical system forms.
12. ring-shaped lighting adapters according to claim 4, is characterized in that,
Described the 2nd reflecting part has two groups of following structures: 2 reflectings surface that there is arranged opposite and make the reflected light in described the 1st reflecting part carry out obtuse angle reflection, these 2 reflectings surface are configured to, from described the 1st reflecting surface more away from, these 2 reflectings surface are nearer.
13. ring-shaped lighting adapters according to claim 1, is characterized in that,
The microstructure of described diffuse surface is described fine protruding structure, and the described fine protruding dome shape that is configured to meets following conditional (6):
0.3<D
max2/R
min2<0.8 （6）
Here,
R
min2the radius-of-curvature at the vertex of surface place of described fine protruding structure,
D
max2it is the maximal value of the distance of the vertex of surface from sliding surface to described fine protruding structure in the normal direction of the sliding surface of described diffuse surface.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2013-012371 | 2013-01-25 | ||
| JP2013012371A JP6132564B2 (en) | 2013-01-25 | 2013-01-25 | Ring lighting adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203673203U true CN203673203U (en) | 2014-06-25 |
Family
ID=50969477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320863821.9U Expired - Fee Related CN203673203U (en) | 2013-01-25 | 2013-12-25 | Annular illumination adapter |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6132564B2 (en) |
| CN (1) | CN203673203U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681082A (en) * | 2015-11-09 | 2017-05-17 | 佳能株式会社 | Lens apparatus and image pickup apparatus including the same |
| CN106980151A (en) * | 2016-01-18 | 2017-07-25 | 佳能株式会社 | Lens devices and the image pick-up device including lens devices |
| JP2017151262A (en) * | 2016-02-24 | 2017-08-31 | オリンパス株式会社 | Illumination adapter |
| CN107121874A (en) * | 2016-02-24 | 2017-09-01 | 奥林巴斯株式会社 | Illumination device |
| CN110830703A (en) * | 2019-12-25 | 2020-02-21 | Oppo广东移动通信有限公司 | Camera assembly and electronic equipment |
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| US3474242A (en) * | 1966-10-14 | 1969-10-21 | David W Forrant | Photographic ring light |
| JP3359071B2 (en) * | 1992-12-11 | 2002-12-24 | オリンパス光学工業株式会社 | Epidark objective lens |
| JP4360701B2 (en) * | 1998-06-19 | 2009-11-11 | 日本ライツ株式会社 | Flat lighting device |
| JP2005258011A (en) * | 2004-03-11 | 2005-09-22 | Canon Inc | Illuminator and photographing apparatus |
| JP2005338384A (en) * | 2004-05-26 | 2005-12-08 | Canon Inc | Illuminating adaptor |
| JP4579729B2 (en) * | 2005-03-18 | 2010-11-10 | キヤノン株式会社 | Light emitting device |
| JP5211656B2 (en) * | 2007-11-28 | 2013-06-12 | 株式会社島津製作所 | Toroidal surface evaluation method |
-
2013
- 2013-01-25 JP JP2013012371A patent/JP6132564B2/en active Active
- 2013-12-25 CN CN201320863821.9U patent/CN203673203U/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106681082A (en) * | 2015-11-09 | 2017-05-17 | 佳能株式会社 | Lens apparatus and image pickup apparatus including the same |
| CN106681082B (en) * | 2015-11-09 | 2019-11-15 | 佳能株式会社 | Lens devices and image pick-up device including lens devices |
| CN106980151A (en) * | 2016-01-18 | 2017-07-25 | 佳能株式会社 | Lens devices and the image pick-up device including lens devices |
| CN106980151B (en) * | 2016-01-18 | 2020-03-03 | 佳能株式会社 | Lens apparatus and image pickup apparatus including the same |
| JP2017151262A (en) * | 2016-02-24 | 2017-08-31 | オリンパス株式会社 | Illumination adapter |
| CN107121874A (en) * | 2016-02-24 | 2017-09-01 | 奥林巴斯株式会社 | Illumination device |
| CN107121874B (en) * | 2016-02-24 | 2019-08-13 | 奥林巴斯株式会社 | Device is used in illumination |
| CN110830703A (en) * | 2019-12-25 | 2020-02-21 | Oppo广东移动通信有限公司 | Camera assembly and electronic equipment |
| CN110830703B (en) * | 2019-12-25 | 2021-07-27 | Oppo广东移动通信有限公司 | Camera assembly and electronic equipment |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2014142564A (en) | 2014-08-07 |
| JP6132564B2 (en) | 2017-05-24 |
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