CN206055547U - A kind of varifocal optical system for colour imaging lamp - Google Patents
A kind of varifocal optical system for colour imaging lamp Download PDFInfo
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- CN206055547U CN206055547U CN201621039371.1U CN201621039371U CN206055547U CN 206055547 U CN206055547 U CN 206055547U CN 201621039371 U CN201621039371 U CN 201621039371U CN 206055547 U CN206055547 U CN 206055547U
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Abstract
A kind of varifocal optical system for colour imaging lamp, including LED light source, even smooth camera lens, imaging light hole and zoom microscope group are provided with along the optical axis direction of LED light source, even smooth camera lens is located at the front of LED light source, imaging light hole is located at the front of even smooth camera lens, and zoom microscope group is located at the front of imaging light hole, and the zoom microscope group includes focusing lens and varifocal mirror, front of the focusing lens in imaging light hole, front of the varifocal mirror in focusing lens.In this utility model, even smooth camera lens presses close to LED light source light-emitting area, and the light of make that LED light source sends more than 80% enters even smooth camera lens, forms uniform light spots in the exiting surface of even smooth camera lens, controls within 30 ° through the angle of divergence of even smooth camera light；Light hole is imaged near even smooth camera lens exiting surface, for being imaged；Zoom microscope group is made up of focusing lens and varifocal mirror, and light hole is imaged onto at a distance, and imaging clearly, hot spot are uniform.
Description
Technical field
This utility model is related to field of LED illumination, and in particular to a kind of varifocal optical system for colour imaging lamp.
Background technology
For existing LED imaging lamps, typically first each lamp bead is carried out with condenser lenss being imaged after optically focused, then colour mixture, light source
Arrangement is limited by condenser lenss, and light-emitting area is larger, and structure is more complicated, and light fixture volume is larger, and hot spot uniformity is not high.
The content of the invention
The technical problems to be solved in the utility model is to provide a kind of simple structure, colour mixture is uniform, and imaging clearly is used for
The varifocal optical system of colour imaging lamp.
In order to solve above-mentioned technical problem, this utility model includes LED light source, is provided with even along the optical axis direction of LED light source
Light camera lens, imaging light hole and zoom microscope group, even smooth camera lens are located at the front of LED light source, and imaging light hole is located at even smooth camera lens
Front, zoom microscope group is located at the front of imaging light hole, and the zoom microscope group includes focusing lens and varifocal mirror, and focusing lens is in
The front of imaging light hole, front of the varifocal mirror in focusing lens.In this utility model, even smooth camera lens is pressed close to LED light source and is lighted
Face, the light of make that LED light source sends more than 80% enter even smooth camera lens, form uniform light spots in the exiting surface of even smooth camera lens, pass through
The angle of divergence of even smooth camera light is controlled within 30 °；Light hole is imaged near even smooth camera lens exiting surface, for being imaged；Zoom
Microscope group is made up of focusing lens and varifocal mirror, and light hole is imaged onto at a distance, and imaging clearly, hot spot are uniform.
Used as further improvement of the utility model, the LED light source includes plural high-power colorful LED
Pearl, the high-power colorful LED lamp bead are densely arranged.
Used as further improvement of the utility model, the focal length of the even smooth camera lens is 30-40mm, the even smooth camera lens
A diameter of 50-60mm.
Used as further improvement of the utility model, the zooming range of the zoom microscope group is 80-160mm, the focusing
Mirror is concave-convex aspheric lens, and the varifocal mirror is plano-convex spherical lens.
Used as further improvement of the utility model, the focusing lens and varifocal mirror can be moved along optical axis direction.It is mobile to become
Smooth zoom can be realized in the position of burnt mirror and focusing lens.
As further improvement of the utility model, the light-emitting window footpath size phase of the aperture of the light hole and even smooth camera lens
Together.
In sum, the utility model has the advantages that simple structure, colour mixture is uniform, imaging clearly.
Description of the drawings
Come that the utility model is described in more detail with reference to the accompanying drawings and detailed description.
Fig. 1 is structural representation of the present utility model.
Specific embodiment
As shown in Figure 1, this utility model includes LED light source 1, and the LED light source 1 includes plural high-power colorful
LED lamp bead, the high-power colorful LED lamp bead are densely arranged, are provided with even smooth camera lens 2, imaging along the optical axis direction of LED light source 1
Light hole 3 and zoom microscope group, even smooth camera lens 2 are located at the front of LED light source 1, are imaged the front that light hole 3 is located at even smooth camera lens 2,
Zoom microscope group is located at the front of imaging light hole 3, and the zoom microscope group includes focusing lens 4 and varifocal mirror 5, focusing lens 4 in into
As the front of light hole 3, front of the varifocal mirror 5 in focusing lens 4, the focal length of the even smooth camera lens 2 is 30-40mm, described even
A diameter of 50-60mm of light camera lens 2, the zooming range of the zoom microscope group is 80-160mm, and the focusing lens 4 is concavo-convex sphere
Lens, the varifocal mirror 5 is plano-convex spherical lens, and the focusing lens 4 and varifocal mirror 5 can be moved along optical axis direction, the thang-kng
The aperture in hole is identical with the light-emitting window footpath size of even smooth camera lens 2.In this utility model, even smooth camera lens 2 is pressed close to LED light source 1 and is lighted
Face, source efficiency are high, and the light of make that LED light source 1 sends more than 80% enters even smooth camera lens 2, in the exiting surface shape of even smooth camera lens 2
Uniformly hot spot, controls, within 30 °, to be easy to imaging, the aperture of light hole and even light through the angle of divergence of even 2 light of smooth camera lens
The light-emitting window footpath size of camera lens 2 is identical, and is imaged light hole 3 near even 2 exiting surface of smooth camera lens, and hot spot is uniform, for being imaged；Become
Burnt microscope group is made up of focusing lens 4 and varifocal mirror, zooming range 80mm-160mm, light hole is imaged onto at a distance, imaging clearly, light
Speckle is uniform, and zoom can be realized in the position of mobile focusing lens 4 and varifocal mirror 5.
Claims (6)
1. a kind of varifocal optical system for colour imaging lamp, it is characterised in that：Including LED light source, along the optical axis of LED light source
Direction is provided with even smooth camera lens, imaging light hole and zoom microscope group, and even smooth camera lens is located at the front of LED light source, and imaging light hole sets
In the front of even smooth camera lens, zoom microscope group is located at the front of imaging light hole, and the zoom microscope group includes focusing lens and varifocal mirror,
Front of the focusing lens in imaging light hole, front of the varifocal mirror in focusing lens.
2. the varifocal optical system for colour imaging lamp as described in claim 1, it is characterised in that：The LED light source bag
Plural high-power colorful LED lamp bead is included, the high-power colorful LED lamp bead is densely arranged.
3. the varifocal optical system for colour imaging lamp as described in claim 1, it is characterised in that：The even smooth camera lens
Focal length is 30-40mm, a diameter of 50-60mm of the even smooth camera lens.
4. the varifocal optical system for colour imaging lamp as described in claim 1, it is characterised in that：The zoom microscope group
Zooming range is 80-160mm, and the focusing lens is concave-convex aspheric lens, and the varifocal mirror is plano-convex spherical lens.
5. the varifocal optical system for colour imaging lamp as described in claim 1, it is characterised in that：The focusing lens and change
Jiao Jingke is moved along optical axis direction.
6. the varifocal optical system for colour imaging lamp as described in claim 1, it is characterised in that：The hole of the light hole
Footpath is identical with the light-emitting window footpath size of even smooth camera lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039371.1U CN206055547U (en) | 2016-09-06 | 2016-09-06 | A kind of varifocal optical system for colour imaging lamp |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621039371.1U CN206055547U (en) | 2016-09-06 | 2016-09-06 | A kind of varifocal optical system for colour imaging lamp |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206055547U true CN206055547U (en) | 2017-03-29 |
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ID=58369517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621039371.1U Active CN206055547U (en) | 2016-09-06 | 2016-09-06 | A kind of varifocal optical system for colour imaging lamp |
Country Status (1)
| Country | Link |
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| CN (1) | CN206055547U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844004A (en) * | 2018-07-17 | 2018-11-20 | 深圳市中孚能电气设备有限公司 | A kind of projection lamp |
-
2016
- 2016-09-06 CN CN201621039371.1U patent/CN206055547U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108844004A (en) * | 2018-07-17 | 2018-11-20 | 深圳市中孚能电气设备有限公司 | A kind of projection lamp |
| WO2020015328A1 (en) * | 2018-07-17 | 2020-01-23 | 深圳市中孚能电气设备有限公司 | Projection lamp assembly and projection lamp |
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