CN104033840A - Composite lens for secondary light distribution of stage lamp - Google Patents
Composite lens for secondary light distribution of stage lamp Download PDFInfo
- Publication number
- CN104033840A CN104033840A CN201310071300.4A CN201310071300A CN104033840A CN 104033840 A CN104033840 A CN 104033840A CN 201310071300 A CN201310071300 A CN 201310071300A CN 104033840 A CN104033840 A CN 104033840A
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- China
- Prior art keywords
- secondary light
- lens
- distribution lens
- light
- light distribution
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Abstract
The invention belongs to illumination equipment, and relates to a secondary light distribution lens for a stage illumination lamp, wherein the stage illumination lamp mainly comprises a light source, a focusing lens and a light distribution lens. A light source is a high-power LED array light source with an aperture of 32.8mm; the focusing lens uses a large-tooth-groove glass Fresnel lens; a lens with a secondary light distribution function is formed by gluing a large-aperture parallel flat plate and a small-aperture plano-convex lens, located between the light source and the Fresnel lens, and used for changing the propagation direction of a light ray and playing a secondary light distribution role; the centre illumination intensity of a light spot can be increased by about 10% in case of no increase for the radius of the light spot by using the secondary light distribution lens. The light distribution lens is plated with a broadband antireflection film with a wavelength of 400-800nm, thus guaranteeing no significant changes of the colour temperature of the illumination lamp after using the secondary light distribution lens.
Description
Technical field
The present invention relates to a kind of lighting engineering.More particularly, be a kind of luminous intensity distribution technology for stage lighting.
Background technology
Along with improving constantly of Lighting Design level, the illumination level of stage illumination, lighting lamp also improves thereupon, yet existing a kind of spotlight for stage illumination, lighting adopts Fresnel Lenses to light source light distribution, because the lighting angle of LED light source is large, its effective efficiency of light energy utilization is low, when adopting heavy caliber LED array light source, the hot spot producing is larger, use common planoconvex spotlight to its secondary light-distribution, hot spot can continue to increase, hot spot is excessive in actual applications does not meet instructions for use, therefore needs are a kind of can be when increasing spot center illumination, do not change the big or small secondary light-distribution lens of hot spot.
Summary of the invention
The technical problem to be solved in the present invention is, large for the LED light source angle of divergence in prior art, the efficiency of light energy utilization is low, and a kind of secondary light-distribution lens that can improve stage lighting light gathering is provided.Use this light-distribution lens can improve spot center illumination approximately 10%, and spot size is constant.
Secondary light-distribution lens of the present invention, is formed by the larger plate glass of bore and the less planoconvex spotlight glue of bore.
Secondary light-distribution lens of the present invention, plate glass is all used identical optical glass material with planoconvex spotlight, the refractive index 1.4<n<1.6 of optical glass wherein, Abbe number 45<V
d<55.
Secondary light-distribution lens of the present invention, the thickness 8mm<d of plate glass
1<12mm, bore 48mm<D
1<52mm.
Secondary light-distribution lens of the present invention, the thickness 0.8mm<d of planoconvex spotlight
2<1mm, bore 15mm<D
2<20mm, convex surface radius 26mm<r<30mm.
Secondary light-distribution lens of the present invention, 400-800nm broadband anti-reflection film is all plated on compound lens surface.
Coordinate bigbore LED array light source, use the secondary light-distribution lens in the present invention, there is following beneficial effect: improved the efficiency of light energy utilization, increased and used the illuminance on showing up, do not changed the size of hot spot simultaneously.
Accompanying drawing explanation
Fig. 1 is the side view of the secondary light-distribution lens in the present invention
Fig. 2 is the side view of the illuminator integral body in the present invention
Fig. 3 is the energy distribution curve that does not use secondary light-distribution lens hot spot
Fig. 4 is the energy distribution curve of hot spot after use secondary light-distribution lens
In figure: 1, LED light source, 2, secondary light-distribution lens, 3, Fresnel Lenses.
The specific embodiment
1, as shown in Figure 2, a kind of illuminating LED light source, its diameter is 32.8mm, the dispersion angle of light source is 60 °.Along optical axis direction, the size of Fresnel Lenses 3 distance L ED light sources 1 is 140mm<t
1<160mm, the bore of Fresnel Lenses 3 is 200mm, focal length is 140mm.Secondary light-distribution lens 2, between light source 1 and Fresnel Lenses 3, is 6mm<t apart from the size of light source 1
2<10mm.
2,400-800nm broadband anti-reflection film is all plated on secondary light-distribution lens surface, and stage lighting uses light-distribution lens and not use the formed hot spot of light-distribution lens to compare the difference of colour temperature little.
3, when light is from LED light source 1 sends, through light-distribution lens 2, change the original direction of propagation, the light converging in scope corresponding to Fresnel Lenses increases, and the luminous energy of Fresnel Lenses core is more than the relative increase of the luminous energy at Fresnel edge, so not only effectively improved the utilization rate of luminous energy, and the spot center illumination on use is shown up carries much higherly, and hot spot edge illumination improves, lack, according to the definition of spot radius, spot size is approximate not to change like this.
Claims (5)
1. for a secondary light-distribution lens for stage illumination, lighting lamp system, feature of the present invention is: between high-power LED light source and large teeth groove Fresnel Lenses, insert a slice light-distribution lens, improve center illumination, do not change the size of hot spot.
2. secondary light-distribution lens according to claim 1, is characterized in that: light-distribution lens is to be formed by the larger plate glass of bore and the less planoconvex spotlight gummed of bore.
3. secondary light-distribution lens according to claim 2, is characterized in that: the thickness 8mm<d of plate glass
1<12mm, bore 48mm<D
1<52mm; The thickness 0.8mm<d of planoconvex spotlight
2<1mm, bore 15mm<D
2<20mm, convex surface radius 26mm<r<30mm.
4. secondary light-distribution lens according to claim 1, is characterized in that: the distance 140mm<t of LED light source and Fresnel Lenses
1<160mm, the distance 6mm<t of LED light source and secondary light-distribution lens
2<10mm.
5. secondary light-distribution lens according to claim 1, is characterized in that: the spot center illumination that after use secondary light-distribution lens, stage illumination, lighting lamp produces improves approximately 10%, and spot size is approximate constant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071300.4A CN104033840A (en) | 2013-03-07 | 2013-03-07 | Composite lens for secondary light distribution of stage lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310071300.4A CN104033840A (en) | 2013-03-07 | 2013-03-07 | Composite lens for secondary light distribution of stage lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104033840A true CN104033840A (en) | 2014-09-10 |
Family
ID=51464730
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310071300.4A Pending CN104033840A (en) | 2013-03-07 | 2013-03-07 | Composite lens for secondary light distribution of stage lamp |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104033840A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678611A (en) * | 2016-09-23 | 2017-05-17 | 上海南华机电有限公司 | Warning light |
| CN109307202A (en) * | 2017-07-26 | 2019-02-05 | 朗德万斯公司 | Light emitting device and lens for light emitting device |
| WO2021143998A1 (en) | 2020-01-13 | 2021-07-22 | Harman Professional Denmark Aps | Illumination device light collector and converging optical system |
Citations (6)
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| CN2823775Y (en) * | 2005-06-03 | 2006-10-04 | 应天星(北京)科技有限公司 | Combined LED mine lamp base |
| CN2828538Y (en) * | 2005-09-30 | 2006-10-18 | 杨颜红 | LED integral water-proof miner's lamp |
| EP1772665A1 (en) * | 2005-10-05 | 2007-04-11 | Optic K (Société à Responsabilité Limitée) | LED lighting device |
| CN101893205A (en) * | 2009-05-18 | 2010-11-24 | 海洋王照明科技股份有限公司 | Led focusing optical system |
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
| CN102954440A (en) * | 2011-08-29 | 2013-03-06 | 惠州元晖光电股份有限公司 | Secondary light distribution lens used for lighting of multichip semiconductor LED (Light-Emitting Diode) |
-
2013
- 2013-03-07 CN CN201310071300.4A patent/CN104033840A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2823775Y (en) * | 2005-06-03 | 2006-10-04 | 应天星(北京)科技有限公司 | Combined LED mine lamp base |
| CN2828538Y (en) * | 2005-09-30 | 2006-10-18 | 杨颜红 | LED integral water-proof miner's lamp |
| EP1772665A1 (en) * | 2005-10-05 | 2007-04-11 | Optic K (Société à Responsabilité Limitée) | LED lighting device |
| CN101893205A (en) * | 2009-05-18 | 2010-11-24 | 海洋王照明科技股份有限公司 | Led focusing optical system |
| CN102954440A (en) * | 2011-08-29 | 2013-03-06 | 惠州元晖光电股份有限公司 | Secondary light distribution lens used for lighting of multichip semiconductor LED (Light-Emitting Diode) |
| CN102853374A (en) * | 2012-08-24 | 2013-01-02 | 霍永峰 | LED (Light-Emitting Diode) stage lamp lens assembly and LED stage lamp |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678611A (en) * | 2016-09-23 | 2017-05-17 | 上海南华机电有限公司 | Warning light |
| CN109307202A (en) * | 2017-07-26 | 2019-02-05 | 朗德万斯公司 | Light emitting device and lens for light emitting device |
| CN109307202B (en) * | 2017-07-26 | 2021-05-11 | 朗德万斯公司 | Light emitting device and lens for light emitting device |
| WO2021143998A1 (en) | 2020-01-13 | 2021-07-22 | Harman Professional Denmark Aps | Illumination device light collector and converging optical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| AD01 | Patent right deemed abandoned | ||
| AD01 | Patent right deemed abandoned |
Effective date of abandoning: 20170822 |