Zoom lighting lamp with multiple telescopic systems combined for use

Abstract

The invention discloses a zoom lighting lamp with multiple telescopic systems used in a combined mode. The zoom lighting lamp comprises more than two telescopic systems. The telescope system has a light source unit, a condenser lens unit, a first lens unit, and a second lens unit arranged in order along an optical axis. The zoom illumination lamp has the beneficial effects that the zoom illumination lamp is provided with at least two telescopic systems, so that after the first lens unit or the second lens unit moves by the same distance, the divergence angle change rules of emergent light of the telescopic systems are inconsistent, and the zoom illumination lamp can be accurately adjusted by accurately selecting parameters of the telescopic systems. And emergent light distribution at different divergence angles can be controlled.

Description

Technical Field

[0001] The invention relates to zoom lighting, in particular to a zoom lighting fixture used in combination with multiple telescopic systems. Background Art

[0002] With the development of semiconductor technology, research on lighting devices based on light-emitting diodes and semiconductor light source units has become popular in recent years. The laser white light source produced by semiconductor light source unit excitation phosphor technology has become a research hotspot at home and abroad due to its ultra-high brightness, ultra-long irradiation distance and long life in the field of high-brightness lighting. At the same time, considering that there are more and more scenarios with the requirements of high beam mode or low beam mode.

[0003] In the existing lighting fixtures that need to change the divergence angle, most of the angle changes of all light sources are consistent. When the angle change ratio is large, especially in the field of laser lighting, the center intensity will decrease, seriously affecting the visual effect. Therefore, if a good spot visual effect needs to be maintained throughout the entire process of angle change, a spot control technology for the entire process becomes urgent. Summary of the invention

[0004] The purpose of the present invention is to provide a novel zoom lighting fixture used in combination with multiple telephoto systems.

[0005] In order to achieve the above-mentioned purpose, the present invention provides a technical solution: a zoom lighting fixture used in combination with multiple telephoto systems, including: more than two telephoto systems, the telephoto systems have a light source unit, a focusing lens unit, a first lens unit, and a second lens unit arranged in sequence along the optical axis.

[0006] The light source unit is a single semiconductor light source, an array semiconductor light source, an LED light source, a xenon lamp or other light sources.

[0007] The first lens unit is a single lens or two or more lenses.

[0008] The second lens unit is a single lens or two or more lenses.

[0009] If the first lens unit and the second lens unit are both positive lenses, the first lens unit and the second lens unit form a Keplerian telescope system. If the first lens unit is a negative lens and the second lens unit is a positive lens, the first lens unit and the second lens unit form a Galilean telescope system. If the first lens unit is a reflector and the second lens unit is a reflector, the first lens unit and the second lens unit form a Cassegrain telescope system. Although the names of other telescope systems are not listed one by one, they are only the telescope systems generally recognized by the industry and are also within the scope required by this patent.

[0010] The telescopic system has a variable focal length. In the zoom lighting fixture, the focal length of only one of the telescopic systems can be adjusted, or the focal length of more than two or all of the telescopic systems can be adjusted.

[0011] In the telephoto system, the condensing lens unit may be omitted, and the condensing power of the condensing lens unit may be integrated into the first lens unit.

[0012] Compared with the prior art, the beneficial effects of the present invention are at least that: the light spot of the light source unit is shaped, homogenized, and focused, and after passing through the first lens unit, a real focus or a virtual focus is formed, and after passing through the second lens unit, the light is emitted at an initial divergence angle, and after the first lens unit or the second lens unit is controlled to move, the divergence angle changes. Since the zoom lighting fixture is equipped with at least two telephoto systems, after the first lens unit or the second lens unit moves the same distance, the divergence angle change law of the emitted light of each telephoto system is inconsistent, and the distribution of the emitted light under different divergence angles can be controlled by accurately selecting the parameters of each telephoto system. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic structural diagram of the zoom lighting fixture of Example 1 of the present invention (before zooming).

[0014] Figure 2 This is a schematic structural diagram of the zoom lighting fixture of Example 1 of the present invention (after zooming).

[0015] Figure 3 Schematic diagram of the structure of the zoom lighting fixture of embodiment 2 of the present invention (before zooming).

[0016] Figure 4 Schematic diagram of the structure of the zoom lighting fixture of embodiment 2 of the present invention (after zooming).

[0017] Figure 5 This is a schematic structural diagram of a zoom lighting fixture according to embodiment 3 of the present invention (before zooming).

[0018] Figure 6 Schematic diagram of the structure of the zoom lighting fixture of embodiment 3 of the present invention (after zooming).

[0019] Figure 7 Schematic diagram of the structure of the zoom lighting fixture of embodiment 4 of the present invention (before zooming).

[0020] Figure 8 Schematic diagram of the structure of the zoom lighting fixture of embodiment 4 of the present invention (after zooming). Implementation

[0021] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limiting the present invention.

[0022] Since the components of the embodiments of the present invention can be implemented in a variety of ways, these directional terms are used for the purpose of explanation rather than limitation. Therefore, the following specific embodiments are not intended to be limiting, and the scope of the present invention is defined by the appended claims. Example

[0023] See also Figure 1 , the figure shows a zoom lighting fixture used in combination with multiple telescopic systems (before zooming). The zoom lighting fixture is composed of two different telescopic systems 1 and 2. The telescopic system 1 located at the top has a light source unit 11, a focusing lens unit 12, a first lens unit 13, and a second lens unit 14 arranged in sequence along the optical axis. The telescopic system 2 located at the bottom has a light source unit 21, a focusing lens unit 22, a first lens unit 23, and a second lens unit 24 arranged in sequence along the optical axis. The difference between the telescopic system 1 located at the top and the telescopic system 2 located at the bottom is that the telescopic system located at the top is a Galilean telescopic system 9 (the first lens unit 13 is a negative lens, and the second lens unit 14 is a positive lens), and the telescopic system located at the bottom is a Keplerian telescopic system (the first lens unit 23 is a positive lens, and the second lens unit 24 is a positive lens).

[0024] See also Figure 2 , the figure shows a zoom lighting fixture used in combination with a multi-telephoto system (after zooming).

[0025] Depend on Figure 1 and Figure 2 It can be seen that the change rules of the divergence angle before and after zooming are inconsistent.

[0026] The light source units 11 and 12 are single semiconductor light sources, array semiconductor light sources, LED light sources, xenon lamps or other light sources.

[0027] The first lens units 13 and 23 are single lenses or two or more lenses.

[0028] The second lens units 14 and 24 are single lenses or two or more lenses. Example

[0029] See also Figure 3 , the figure shows a zoom lighting fixture used in combination with multiple telescope systems (before zooming). The zoom lighting fixture is composed of two different telescope systems 1 and 2. The telescope system 1 located at the top has a light source unit 11, a focusing lens unit 12, a first lens unit 13, and a second lens unit 14 arranged in sequence along the optical axis. The telescope system 1 located at the top is a Keplerian telescope system (the first lens unit 13 is a positive lens, and the second lens unit 14 is a positive lens). The telescope system 2 located at the bottom has a light source unit 21, a focusing lens unit 22, a first lens unit 23, and a second lens unit 24 arranged in sequence along the optical axis. The telescope system 2 located at the bottom is a Keplerian telescope system (the first lens unit 23 is a positive lens, and the second lens unit 24 is a positive lens). The difference between the telescope system located at the top and the telescope system located at the bottom is: the setting parameters of the first lens units 13, 23, and the second lens units 14, 24 of the two.

[0030] See also Figure 4 , the figure shows a zoom lighting fixture used in combination with a multi-telephoto system (after zooming).

[0031] Depend on Figure 3 and Figure 4 It can be seen that the change rules of the divergence angle before and after zooming are inconsistent. Example

[0032] See also Figure 5, the figure shows a zoom lighting fixture used in combination with multiple telescope systems (before zooming). The zoom lighting fixture is composed of two different telescope systems 1 and 2. The telescope system 1 located at the top has a light source unit 11, a focusing lens unit 12, a first lens unit 13, and a second lens unit 14 arranged in sequence along the optical axis. The telescope system 2 located at the bottom has a light source unit 21, a focusing lens unit 22, a first lens unit 23, and a second lens unit 24 arranged in sequence along the optical axis. The telescope system 1 located at the top is a Keplerian telescope system (the first lens unit 13 is a positive lens, and the second lens unit 14 is a positive lens). The telescope system 2 located at the bottom is a Keplerian telescope system (the first lens unit 23 is a positive lens, and the second lens unit 24 is a positive lens). The difference between the telescope system 1 located at the top and the telescope system 2 located at the bottom is: the setting parameters of the focusing lens units 12 and 13 of the two.

[0033] See also Figure 6 , the figure shows a zoom lighting fixture used in combination with a multi-telephoto system (after zooming).

[0034] Depend on Figure 5 and Figure 6 It can be seen that the change rules of the divergence angle before and after zooming are inconsistent. Example

[0035] See also Figure 7 , the figure shows a zoom lighting fixture used in combination with multiple telescope systems (before zooming). The zoom lighting fixture is composed of two different telescope systems 1 and 2. The telescope system 1 located at the top has a light source unit 11, a focusing lens unit 12, a first lens unit 13, and a second lens unit 14 arranged in sequence along the optical axis. The telescope system 1 located at the top is a Keplerian telescope system (the first lens unit 13 is a positive lens, and the second lens unit 14 is a positive lens). The telescope system 2 located at the bottom has a light source unit 21, a focusing lens unit 22, a first lens unit 23, and a second lens unit 24 arranged in sequence along the optical axis. The telescope system 2 located at the bottom is a Keplerian telescope system (the first lens unit 23 is a positive lens, and the second lens unit 24 is a positive lens). The difference between the telescope system 1 located at the top and the telescope system 2 located at the bottom is: the setting parameters of the light source unit 1 of the two.

[0036] See also Figure 8 , the figure shows a zoom lighting fixture used in combination with a multi-telephoto system (after zooming).

[0037] Depend on Figure 7 and Figure 8 It can be seen that the change rules of the divergence angle before and after zooming are inconsistent.

[0038] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and cannot be construed as limiting the present invention. For professionals in the field, the present invention may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the purpose and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A zoom lighting fixture used in combination with multiple telephoto systems, characterized in that: include: Two or more telephoto systems, each of which has a light source unit, a condenser lens unit, a first lens unit, and a second lens unit arranged in sequence along an optical axis.

2. The zoom lighting fixture used in combination with multiple telephoto systems according to claim 1, characterized in that: The light source unit is a single semiconductor light source, an array semiconductor light source, an LED light source or a xenon lamp light source.

3. The zoom lighting fixture used in combination with multiple telephoto systems according to claim 1, characterized in that: The first lens unit is a single lens or two or more lenses, and the second lens unit is a single lens or two or more lenses.

4. The zoom lighting fixture used in combination with multiple telephoto systems according to claim 1, characterized in that: If the first lens unit and the second lens unit are both positive lenses, the first lens unit and the second lens unit constitute a Keplerian telescope system; if the first lens unit is a negative lens and the second lens unit is a positive lens, the first lens unit and the second lens unit constitute a Galilean telescope system; if the first lens unit is a reflector and the second lens unit is a reflector, the first lens unit and the second lens unit constitute a Cassegrain telescope system.

5. The zoom lighting fixture used in combination with multiple telephoto systems according to claim 1, characterized in that: In the telephoto system, the condenser lens unit is omitted.

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