JP2019102318A5 - - Google Patents
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- Publication number
- JP2019102318A5 JP2019102318A5 JP2017233341A JP2017233341A JP2019102318A5 JP 2019102318 A5 JP2019102318 A5 JP 2019102318A5 JP 2017233341 A JP2017233341 A JP 2017233341A JP 2017233341 A JP2017233341 A JP 2017233341A JP 2019102318 A5 JP2019102318 A5 JP 2019102318A5
- Authority
- JP
- Japan
- Prior art keywords
- light guide
- light
- end side
- optical assembly
- diffusing portion
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003287 optical Effects 0.000 claims 7
- 230000004323 axial length Effects 0.000 claims 3
- 230000002093 peripheral Effects 0.000 claims 2
Claims (7)
前記導光体の先端側の中心部に設けられた光拡散部と；
を具備し、
前記導光体の先端側の端面の半径に対する前記光拡散部の半径の比率をｃ、前記導光体の屈折率をｎとすると、ｃ≧０．２１２８×ｎ＋０．５６８１６１９２の関係にある
ことを特徴とする光学アッセンブリ。 A columnar light guide pillar, an incident surface provided on the end surface of the light guide pillar on the base end side to receive light from a light emitting source, and an outer peripheral surface of the light guide pillar on the tip end side toward the tip end side of the light guide pillar. With a light guide body having a paraboloid surface with a reduced diameter;
With the light diffusing portion provided in the central portion on the tip side of the light guide body;
Equipped with
Assuming that the ratio of the radius of the light diffusing portion to the radius of the end face on the tip end side of the light guide is c and the refractive index of the light guide is n, the relationship is c ≧ 0.2128 × n + 0.56816192. Characterized optical assembly.
ことを特徴とする請求項１記載の光学アッセンブリ。 When the ratio ratio of the axial length of the light diffusing portion with respect to the axial direction of the length of said parabolic surface of the light guide body is d, a relation that d ≧ -2.1911 × n + 4.0709 The optical assembly according to claim 1.
ことを特徴とする請求項１記載の光学アッセンブリ。 Assuming that the ratio of the axial length of the light diffusing portion to the axial length of the paraboloid of the light guide body is d, the relationship is d ≧ −1.2944 × n + 2.7685786. The optical assembly according to claim 1 .
ことを特徴とする請求項１ないし３いずれか一記載の光学アッセンブリ。 The optical assembly according to any one of claims 1 to 3, wherein the cross-sectional area S of the light diffusing portion along the axial direction of the light guide body has a relationship of S ≦ 16.9 mm 2 .
前記導光体の中心軸と前記遮光体の周辺部とを結ぶ直線をｘ、この直線ｘと前記導光体の中心軸とが交差する交点と前記光拡散部とを結ぶ直線をｙとすると、ｙ／ｘ≧１．３５の関係にある
ことを特徴とする請求項１ないし４いずれか一記載の光学アッセンブリ。 A light-shielding body that covers the proximal end side of the light guide is provided.
Let x be the straight line connecting the central axis of the light guide and the peripheral portion of the light shielding body, and y be the straight line connecting the intersection of the straight line x and the central axis of the light guide and the light diffusing portion. , Y / x ≧ 1.35. The optical assembly according to any one of claims 1 to 4, wherein the optical assembly has a relationship of ≧ 1.35.
前記筐体の一端側に設けられる発光源と；
前記発光源に対向して前記支持体の一端側に設けられる請求項１ないし５いずれか一記載の光学アッセンブリと；
前記筐体の一端側を覆うグローブと；
前記筐体の他端側に設けられる給電部と；
を具備することを特徴とするランプ装置。 With the housing;
With a light emitting source provided on one end side of the housing;
The optical assembly according to any one of claims 1 to 5, which is provided on one end side of the support so as to face the light emitting source;
With a glove that covers one end of the housing;
With the power feeding unit provided on the other end side of the housing;
A lamp device characterized by comprising.
前記ランプ装置の前記給電部を接続するソケットと；
を具備することを特徴とする照明装置。 With the lamp device according to claim 6;
With a socket connecting the power feeding unit of the lamp device;
A lighting device characterized by comprising.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017233341A JP7004148B2 (en) | 2017-12-05 | 2017-12-05 | Optical assembly, lamps and lighting |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2017233341A JP7004148B2 (en) | 2017-12-05 | 2017-12-05 | Optical assembly, lamps and lighting |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| JP2019102318A JP2019102318A (en) | 2019-06-24 |
| JP2019102318A5 true JP2019102318A5 (en) | 2020-10-08 |
| JP7004148B2 JP7004148B2 (en) | 2022-02-04 |
Family
ID=66974009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2017233341A Active JP7004148B2 (en) | 2017-12-05 | 2017-12-05 | Optical assembly, lamps and lighting |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP7004148B2 (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP6045864B2 (en) | 2012-09-20 | 2016-12-14 | 株式会社東芝 | LED lighting device |
| JP6410033B2 (en) | 2014-11-17 | 2018-10-24 | 東芝ライテック株式会社 | Lamp device |
-
2017
- 2017-12-05 JP JP2017233341A patent/JP7004148B2/en active Active
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