WO2021017375A1 - 一种多功能用途的便携式激光照明系统及激光手电筒 - Google Patents

一种多功能用途的便携式激光照明系统及激光手电筒 Download PDF

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WO2021017375A1
WO2021017375A1 PCT/CN2019/125978 CN2019125978W WO2021017375A1 WO 2021017375 A1 WO2021017375 A1 WO 2021017375A1 CN 2019125978 W CN2019125978 W CN 2019125978W WO 2021017375 A1 WO2021017375 A1 WO 2021017375A1
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Prior art keywords
laser
optical
optical system
excitation light
light
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PCT/CN2019/125978
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English (en)
French (fr)
Inventor
李秀斌
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广州光联电子科技有限公司
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Publication of WO2021017375A1 publication Critical patent/WO2021017375A1/zh

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21L—LIGHTING DEVICES OR SYSTEMS THEREOF, BEING PORTABLE OR SPECIALLY ADAPTED FOR TRANSPORTATION
    • F21L4/00—Electric lighting devices with self-contained electric batteries or cells
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V13/00—Producing particular characteristics or distribution of the light emitted by means of a combination of elements specified in two or more of main groups F21V1/00 - F21V11/00
    • F21V13/02—Combinations of only two kinds of elements
    • F21V13/08—Combinations of only two kinds of elements the elements being filters or photoluminescent elements and reflectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V14/00—Controlling the distribution of the light emitted by adjustment of elements
    • F21V14/02—Controlling the distribution of the light emitted by adjustment of elements by movement of light sources
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V9/00—Elements for modifying spectral properties, polarisation or intensity of the light emitted, e.g. filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00—Light-generating elements of semiconductor light sources
    • F21Y2115/30—Semiconductor lasers

Definitions

  • the present invention relates to the technical field of flashlights, and more specifically, to a portable laser lighting system and a laser flashlight for multifunctional purposes.
  • Hand-held lighting equipment is also called a flashlight. Because of its very good portability and mobility, it is widely used in many outdoor and other special applications, such as outdoor mountaineering, expeditions, police search and rescue, small space lighting and other scenes.
  • This kind of hand-held lighting equipment usually consists of a barrel and a barrel head.
  • the barrel has a built-in power supply battery, and the barrel head is equipped with a specific light-emitting device.
  • the most traditional light-emitting devices used in flashlights are low-power halogen bulbs.
  • This type of light source has good color rendering, but it has no advantages in brightness and efficiency, and its short life span is its fatal disadvantage.
  • the second is the semiconductor lighting LED that has become popular in recent years. As a new light source, LED has high luminous efficiency, long life, and good stability. It has a trend of replacing traditional light sources in various application fields. However, due to its application in the field of flashlights, it requires extremely high requirements for portability.
  • LED as a surface light source
  • the secondary optics is not well designed, the illumination distance is not far, and the functions of the two light sources are very single, which can only be used as a portable lighting system.
  • the development and application of new semiconductor laser technology has brought a new definition to portable lighting. Because the laser has very good directivity and is very close to the ideal point light source, the effective lighting distance can be greatly increased.
  • the ultra-high brightness of the laser is also It can be used for long-distance call for help or fire and other functions, which greatly expands the function of the laser flashlight in the military and outdoor fields, and achieves multi-purpose purposes.
  • the present invention aims to overcome the above-mentioned defects in the prior art and provide a multifunctional portable laser lighting system.
  • the flashlight equipped with the lighting system makes full use of the laser’s good directivity and extremely high brightness to achieve high efficiency and ultra-long distance
  • the excitation light can also be used for super long-distance calls for help or fire.
  • the technical solution adopted by the present invention is to provide a multifunctional portable laser illumination system, including a first optical system and a second optical system; the first optical system or the second optical system is equipped with A laser for excitation light and a wavelength conversion device for absorbing part of the excitation light to form a received laser; the second optical system is located at the outermost part of the light emission direction, and the first optical system and the second optical system can be relatively displaced or separated; two optical systems When the system is not displaced or separated, the combined illumination light by the laser and the excitation light not absorbed by the wavelength conversion device is emitted by the second optical system; when the two optical systems are relatively displaced or separated, the excitation light emitted by the laser is emitted from the first optical system.
  • the system launches.
  • the relative displacement of the two optical systems can be achieved by the relative rotation of the external carrier structure where the two optical systems are located, which can be translational rotation or uncovered rotation; the relative separation of the two optical systems can be achieved by the plug-in connection of the external carrier structure where the two optical systems are located ;
  • the external carrier structure can be the shell of the flashlight head provided with the lighting system.
  • the first optical system and the second optical system that can be relatively displaced or separated are provided, and a laser is provided in any optical system, so that the illumination can be realized by the relative displacement or relative separation of the two optical systems.
  • the system can freely switch the function of illuminating light or excitation light, and while realizing high-efficiency ultra-long-distance lighting, it can also use the excitation light to perform ultra-long-distance rescue or fire functions to realize the multi-functional use of the lighting system.
  • a rotating shaft device capable of relatively rotating the two optical systems is provided between the first optical system and the second optical system; or the two optical systems have a plug-in connection structure.
  • the second optical system rotates around the rotation axis device, so that the two optical systems are relatively displaced.
  • the excitation light emitted by the laser is directly emitted from the first optical system to the outside, realizing the function of excitation light; rotating the second optical system again resets the two optical systems That is, the two optical systems are not shifted, and the illumination light is emitted from the second optical system to the outside to realize the function of the illumination light; the rotating setting facilitates the free switching of the illumination light or the excitation light function.
  • the plug-in connection enables the connection and separation of the two optical systems by plugging and unplugging; when the two optical systems are separated, the excitation light emitted by the laser is directly emitted from the first optical system to the outside, realizing the function of excitation light; When the system is connected, the illuminating light is emitted from the second optical system to the outside, realizing the function of illuminating light.
  • the first solution is: the laser and the wavelength conversion device are provided in the first optical system; the optical axis of the excitation light emitted by the laser does not coincide with the exit optical axis of the illumination light; the second optical system is provided with several optical reflectors Several optical reflectors are used to reflect the excitation light and guide the excitation light to the wavelength conversion device.
  • the two optical systems are not displaced or separated, the excitation light emitted by the laser is guided to the wavelength conversion device through the deflection and reflection of several optical reflectors, and the wavelength conversion device absorbs part of the excitation light to form a received laser.
  • the excitation light combined with the illumination light absorbed by the conversion device is emitted by the second optical system; when the two optical systems are relatively displaced or relatively separated, the excitation light emitted by the laser is directly emitted from the first optical system.
  • a first optical reflector and a second optical reflector are provided in the second optical system; when the two optical systems are not displaced or separated, the laser and the first optical reflector are provided in the second optical system.
  • the exit optical axis of the illuminating light is the second optical axis, and the wavelength conversion device is located on the second optical axis; the first optical reflector is used to deflect the blue excitation light emitted by the laser for the first time.
  • the second optical reflector is provided at the position where the blue excitation light after the second deflection intersects the second optical axis, and the second optical reflector is used to deflect the blue excitation light after the first deflection for the second time to make the blue
  • the excitation light optical axis coincides with the second optical axis.
  • the first deflection causes the blue excitation light to intersect the second optical axis
  • the second optical reflector set at the intersection is used to deflect the blue excitation light into the first optical system for the second time along the second optical axis.
  • the direction opposite to the illuminating light is transmitted to the wavelength conversion device.
  • the wavelength conversion device absorbs part of the excitation light to form a received laser.
  • the received laser and the excitation light not absorbed by the wavelength conversion device combine the illuminating light along the second optical axis and exit from the second optical system.
  • the second solution is: the first optical system is equipped with the laser, the second optical system is equipped with a wavelength conversion device, and the wavelength conversion device is a transmissive structure; the excitation light emitted by the laser is located on the optical axis and the illumination light is emitted. The beam axis coincides.
  • the blue excitation light emitted by the laser directly passes through the wavelength conversion device of the transmissive structure in the second optical system.
  • the wavelength conversion device absorbs part of the excitation light to form a received laser.
  • the excitation light absorbed by the wavelength conversion device and the combined illumination light are emitted by the second optical system to realize the function of the illumination light; when the two optical systems are relatively displaced or separated, the blue excitation light emitted by the laser is directly emitted from the first optical system to realize the excitation light Function.
  • a light emitting lens is provided at the outermost part of the light emitting direction in the second optical system, and the laser light and the excitation light not absorbed by the wavelength conversion device are collimated by the light emitting lens to synthesize the nearly parallel illuminating light to emit.
  • Different light-emitting lens sizes and parameters can be selected for matching according to the use requirements to change the illumination angle of the optical system to achieve the needs of long and short distance changes.
  • the excitation light emitted by the laser is provided with a first small lens in the emission direction, and the first small lens is used to focus the parallel or nearly parallel blue excitation light emitted by the laser on the wavelength conversion device.
  • the first small lens is arranged in the second optical system and is located between the laser and the first optical reflector; in the second solution of the wavelength conversion device, the first small lens It is arranged in the first optical system and between the laser and the wavelength conversion device.
  • a second small lens is provided along the emission direction of the illuminating light, and the second small lens is used to focus the illuminating light formed by the laser light and the excitation light not absorbed by the wavelength conversion device on the light output lens; the wavelength conversion device is located in the first The combined focus of the two small lenses and the light emitting lens.
  • This arrangement is convenient to focus the blue excitation light on the wavelength conversion device, so that the wavelength conversion device absorbs part of the excitation light formed by the laser and the unabsorbed excitation light to synthesize high-energy density illumination light; in the first solution of the wavelength conversion device In the second optical system, the second small lens is located in the first optical system and between the wavelength conversion device and the second optical reflector; in the second solution of the wavelength conversion device, the second small lens is located in the second optical system , And located between the wavelength conversion device and the light emitting lens.
  • the first optical system is provided with a focusing system for converging the laser to emit excitation light.
  • the focusing system can realize the concentration of excitation light, reduce the difficulty of ignition point, and make the space setting of the lighting system more reasonable.
  • Another object of the present invention is to provide a multifunctional portable laser flashlight, including a barrel and a barrel head.
  • the barrel head includes a first barrel head and a second barrel head that can be relatively displaced or separated.
  • the first barrel The head is connected with the cylinder; the cylinder head is provided with the above-mentioned laser illumination system, and the first optical system is provided in the first cylinder head, and the second optical system is provided in the second cylinder head; the cylinder is provided with electric power for the laser
  • the battery is equipped with a switch for controlling the laser on and off.
  • the setting of the switch is convenient to turn on and off the flashlight, which is a prior art and will not be described in detail here.
  • a rotating shaft device capable of relative rotation between the first tube head and the second tube head is provided; or the first tube head and the second tube head have a plug-in connection structure.
  • the rotating shaft device or plug-in connection is the prior art, which has been widely used in the mechanical field, and its structure will not be detailed here.
  • the illumination system can emit illumination light through the relative displacement or relative separation of the two optical systems. Or the free switching of the excitation light function, so that while realizing high-efficiency ultra-long-distance lighting, the excitation light can also be used to perform ultra-long-distance rescue or fire functions to realize the multi-functional use of the lighting system.
  • Fig. 1 is a schematic diagram of a portable laser lighting system and laser flashlight for multi-function use in Example 1.
  • FIG. 2 is a schematic diagram of the first optical system and the second optical system when relative rotation produces displacement in Embodiment 1.
  • FIG. 1 is a schematic diagram of the first optical system and the second optical system when relative rotation produces displacement in Embodiment 1.
  • FIG. 3 is a schematic diagram of the first optical system after deleting the second optical system in Embodiment 1.
  • FIG. 3 is a schematic diagram of the first optical system after deleting the second optical system in Embodiment 1.
  • Fig. 4 is a schematic diagram of a portable laser lighting system and laser flashlight for multi-function use in Example 2.
  • the present invention provides a multifunctional portable laser illumination system, including a first optical system 200 and a second optical system 300; the first optical system 200 is provided with a laser for emitting excitation light 201, the first optical system 200 or the second optical system 300 is provided with a wavelength conversion device 203 for absorbing part of the excitation light to form a received laser; the second optical system 300 is provided at the outermost part of the light emission direction, the first optical system 200 and the second optical system 200
  • the two optical systems 300 can be relatively displaced or separated; when the two optical systems are not displaced or separated, the combined illumination light by the laser light and the excitation light not absorbed by the wavelength conversion device 203 is emitted by the second optical system 300; two optical systems During relative displacement or relative separation, the excitation light emitted by the laser 201 is emitted from the first optical system 200.
  • the wavelength conversion device 203 is a yellow phosphorous phosphor sheet; the yellow phosphorous phosphor is excited by part of the excitation light to form a laser.
  • the relative displacement of the two optical systems can be achieved by the relative rotation of the external carrier structure where the two optical systems are located, which can be translational rotation or uncovered rotation; the relative separation of the two optical systems can be achieved by the plug-in connection of the external carrier structure where the two optical systems are located ;
  • the external carrier structure can be the shell of the flashlight head provided with the lighting system.
  • the first optical system 200 and the second optical system 300 capable of relative displacement or relative separation are arranged, and the laser 201 is arranged in any optical system 200, so that the relative displacement or relative separation of the two optical systems can realize
  • the lighting system can switch freely between the illuminating light and the excitation light function, so as to achieve high-efficiency ultra-long-distance lighting, it can also use the excitation light to perform ultra-long-distance rescue or fire functions, and realize the multi-functional use of the lighting system .
  • a rotating shaft device 600 capable of relatively rotating the two optical systems is provided between the first optical system 200 and the second optical system 300.
  • the two optical systems are translational rotation;
  • the rotation axis device 600 is a prior art and has been widely used in the mechanical field, and its structure will not be detailed here;
  • the second optical system 300 rotates around the rotation axis device 600,
  • the two optical systems are relatively displaced, and the excitation light emitted by the laser 201 is directly emitted from the first optical system 200 to the outside, realizing the function of excitation light; rotating the second optical system 300 again to reset the two optical systems, that is, the two optical systems are not shifted.
  • the illuminating light is emitted from the second optical system 300 to the outside to realize the function of illuminating light; the rotating setting facilitates the free switching of the illuminating light or the excitation light function.
  • the two optical systems can also be set in a plug-in connection to realize the relative separation of the two optical systems.
  • the wavelength conversion device 203 is provided in the first optical system 200; the optical axis of the excitation light emitted by the laser 201 does not coincide with the exit optical axis of the illumination light; the second optical system 300 is provided with several optical The reflector, several optical reflectors are used to reflect the excitation light and guide the excitation light to the wavelength conversion device 203.
  • the two optical systems are not displaced or separated, the excitation light emitted by the laser 201 is guided to the wavelength conversion device 203 through the deflection and reflection of several optical reflectors, and the wavelength conversion device 203 absorbs part of the excitation light to form a received laser.
  • the combined illumination light of the excitation light not absorbed by the wavelength conversion device 203 is emitted by the second optical system 300; when the two optical systems are relatively displaced or separated, the excitation light emitted by the laser 201 is directly emitted from the first optical system 200.
  • the second optical system 300 is provided with a first optical reflector 302 and a second optical reflector 303; when the two optical systems are not displaced or separated, the laser 201 And the first optical reflector 302 are arranged on the first optical axis 400, the exit optical axis of the illumination light is the second optical axis 500, and the wavelength conversion device 203 is located on the second optical axis 500; the first optical reflector 302 is used to The blue excitation light emitted by the laser 201 is deflected for the first time, and the second optical reflector 303 is set at the position where the blue excitation light after the first deflection intersects the second optical axis 500, and the second optical reflector 303 is used The blue excitation light after the first deflection is deflected a second time so that the optical axis of the blue excitation light coincides with the second optical axis 500.
  • the blue excitation light emitted by the laser 201 exits along the first optical axis 400 and enters the first optical reflector 302 of the second optical system 300, and the first optical reflector 302 is used for
  • the blue excitation light is deflected for the first time, and the blue excitation light is intersected with the second optical axis 500.
  • the second optical reflector 303 at the intersection is used to deflect the blue excitation light for the second time and enter the first
  • the optical system 200 is transmitted to the wavelength conversion device 203 along the second optical axis 500 and opposite to the illuminating light.
  • the wavelength conversion device 203 absorbs part of the excitation light to form a received laser light, which is excited by the laser light and not absorbed by the wavelength conversion device 203
  • the light synthesized illumination light is emitted from the second optical system 300 along the second optical axis 500 to realize the function of the illumination light; when the two optical systems are relatively displaced or separated, the first optical reflector originally used for the first deflection of the excitation light 302 moves out of the first optical axis 400, so that the excitation light can be directly emitted from the first optical system 200 to realize the function of excitation light.
  • a light emitting lens 304 is provided at the outermost part of the light emitting direction in the second optical system 300, and the laser light and the excitation light not absorbed by the wavelength conversion device 203 are collimated by the light emitting lens 304 to form a nearly parallel illumination light to be emitted.
  • Different sizes and parameters of the light-emitting lens 304 can be selected for matching according to the use requirements to change the illumination angle of the optical system to achieve the requirements of long and short distance changes.
  • the excitation light emitted by the laser 201 is provided with a first small lens 301 in the emission direction, and the first small lens 301 is used to focus the parallel or nearly parallel blue excitation light emitted by the laser 201 on the wavelength conversion device 203.
  • the first small lens 301 is provided in the second optical system 300 and located between the laser 201 and the first optical reflector 302.
  • a second small lens 202 is provided along the emission direction of the illuminating light, and the second small lens 202 is used to focus the illuminating light formed by the laser light and the excitation light not absorbed by the wavelength conversion device 203 on the light output lens 304; the wavelength conversion device 203 Located at the combined focal point of the second small lens 202 and the light exit lens 304.
  • This arrangement facilitates focusing the blue excitation light on the wavelength conversion device 203, so that the wavelength conversion device 203 absorbs part of the excited light formed by the laser light and the unabsorbed excitation light to synthesize high-energy density illumination light.
  • the second small lens 202 is provided in the first optical system 200 and located between the wavelength conversion device 203 and the second optical reflector 303.
  • the first optical system 200 is provided with a focusing system for converging the laser 201 to emit excitation light.
  • the focusing system can realize the concentration of excitation light, reduce the difficulty of ignition point, and make the space setting of the lighting system more reasonable.
  • This embodiment also provides a multifunctional portable laser flashlight, including a barrel body 100 and a barrel head.
  • the barrel head includes a first barrel head and a second barrel head capable of relative displacement or relative separation.
  • the cylinder 100 is connected; the cylinder head is provided with the above-mentioned laser illumination system, and the first optical system 200 is provided in the first cylinder head, and the second optical system 300 is provided in the second cylinder head; the cylinder 100 is provided with a laser 201 provides the battery 102 with electric energy, and the cylinder 100 is provided with a switch 101 for controlling the laser 201 to be turned on and off.
  • the setting of the switch 101 is convenient to turn on and off the flashlight, which is a prior art and will not be described in detail here.
  • a rotating shaft device 600 capable of relatively rotating the two.
  • the rotating shaft device 600 is a prior art and has been widely used in the mechanical field, and its structure will not be described in detail here.
  • the first barrel head and the second barrel head can also be configured as a plug-in connection structure to realize the relative separation of the two barrel heads.
  • Embodiment 2 The difference between Embodiment 2 and Embodiment 1 is: 1.
  • the specific location and specific structure of the wavelength conversion device 203 are different.
  • the light path in Embodiment 1 is mainly reflection to reduce the absolute length of the light path, and Embodiment 2 is mainly transmission To simplify the light path structure; 2.
  • the specific setting position of the first small lens 301 is different; 3.
  • the specific setting position of the second small lens 202 is different; 4.
  • the connection mode of the first optical system 200 and the second optical system 300 are different.
  • the first optical system 200 is provided with the laser 201
  • the second optical system 300 is provided with a wavelength conversion device 203
  • the wavelength conversion device 203 is a transmissive structure; the excitation emitted by the laser 201
  • the optical axis where the light is located coincides with the exit optical axis of the illumination light.
  • the blue excitation light emitted by the laser 201 directly passes through the wavelength conversion device 203 of the transmissive structure in the second optical system 300.
  • the wavelength conversion device 203 absorbs part of the excitation light to form a received laser light.
  • the laser and the excitation light not absorbed by the wavelength conversion device 203 combine the illumination light to be emitted by the second optical system 300 to realize the function of the illumination light; when the two optical systems are relatively displaced or separated, the blue excitation light emitted by the laser 201 is directly from the first
  • the optical system 200 emits light to realize the function of excitation light. Since the laser 201 and the wavelength conversion device 203 are located on the same optical axis in this embodiment, the excitation light emitted by the laser 201 can be transmitted to the wavelength conversion device 203 without being guided by an optical reflector.
  • the embodiment 2 The structure of the lighting system is simplified; the length direction of the flashlight is defined as the vertical direction, and the vertical direction to the vertical direction is the horizontal direction. Embodiment 2 can further reduce the horizontal size of the flashlight.
  • the first small lens 301 is provided in the first optical system 200 and located between the laser 201 and the wavelength conversion device 203.
  • the second small lens 202 is provided in the second optical system 300 and located between the wavelength conversion device 203 and the light emitting lens 304.
  • the first optical system 200 and the second optical system 300 have a pluggable connection structure, that is, a pluggable connection of an external carrier structure where the two optical systems are located.
  • the plug-in connection enables the connection and separation of the two optical systems by plugging and unplugging; when the two optical systems are separated, the excitation light emitted by the laser 201 is directly emitted from the first optical system 200 to the outside, realizing the function of excitation light; When the two optical systems are connected, the illuminating light is emitted from the second optical system 300 to the outside, realizing the function of illuminating light.
  • this embodiment can also use the rotation axis device 600 in Embodiment 1 to realize the relative rotation of the first optical system 200 and the second optical system 300.

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Abstract

一种多功能用途的便携式激光照明系统及激光手电筒，照明系统包括第一光学系统（200）及第二光学系统（300）；第一光学系统（200）或第二光学系统（300）内设有用于发出激发光的激光器（201）及用于吸收部分激发光形成受激光的波长转换装置（203）；第二光学系统（300）设于光出射方向最外部，第一光学系统（200）及第二光学系统（300）能发生相对位移或相对分离；两光学系统（200，300）未发生位移或分离时，受激光和未被波长转换装置（203）吸收的激发光合成照明光由第二光学系统（300）出射；两光学系统（200，300）相对位移或分离时，激光器（201）发出的激发光从第一光学系统（200）出射。通过两光学系统（200，300）的相对位移或相对分离与否，实现该照明系统发出照明光或激发光功能的自由切换，既能高效率超远距离照明，又能超远距离求救或生火。

Description

一种多功能用途的便携式激光照明系统及激光手电筒 技术领域
本发明涉及手电筒技术领域，更具体地，涉及一种多功能用途的便携式激光照明系统及激光手电筒。
背景技术
手持式照明设备又称为手电筒，由于其具有非常好的便携的可移动性，在许多户外及其他特种应用场合得到广泛使用，如户外登山、探险、警用搜救、小空间照明等场景。
这种手持式的照明设备通常又由筒体及筒头组成，筒体内置供电电池，筒头上设有特定的发光器件。应用于手电筒的发光器件，最为传统的是小功率的卤素灯泡，这类光源显色好，但亮度及效率不具优势，而且寿命短是其致命的缺点。其次是近些年流行起来的半导体照明LED，LED作为新兴的光源，发光效率高、寿命长、稳定性好，在各应用领域有取而代之传统光源的趋势。但由于应用于手电筒领域，其要求便携性的极高要求，无论是传统的卤素灯还是LED光源，都由于他们自身的缺陷导致便携式照明的局限性，如灯泡的寿命短、亮度不高，而LED作为面光源，二次光学不好设计，照射距离不远，且两种光源功能都非常单一，仅仅只能作为便携的照明系统使用。
而新型的半导体激光技术的发展应用，给便携式照明带来新的定义，由于激光具有非常良好的方向性，非常接近理想的点光源，可使有效照明距离大大增加，激光的超高亮度，还可以用作远距离求救或生火等功能，这在军用领域及户外领域大大的扩展了激光手电筒的功能，实现多用途的目的。但是实现照明及远距离求救或生火等功能的切换一直是亟待解决的问题。
技术问题
本发明旨在克服上述现有技术中的缺陷，提供一种多功能用途的便携式激光照明系统，设有该照明系统的手电筒充分利用激光良好方向性和极高亮度的特点实现高效率超远距离照明的同时，还可以利用激发光进行超远距离的求救或生 火等功能。
问题的解决方案
技术解决方案
为达到上述目的，本发明采取的技术方案是：提供一种多功能用途的便携式激光照明系统，包括第一光学系统及第二光学系统；第一光学系统或第二光学系统内设有用于发出激发光的激光器及用于吸收部分激发光形成受激光的波长转换装置；第二光学系统设于光出射方向最外部，第一光学系统及第二光学系统能发生相对位移或相对分离；两光学系统未发生位移或未发生分离时，受激光和未被波长转换装置吸收的激发光合成照明光由第二光学系统出射；两光学系统相对位移或相对分离时，激光器发出的激发光从第一光学系统出射。
两光学系统相对位移可通过两光学系统所在外部载体结构的相对旋转实现，可为平移式旋转或揭开式旋转；两光学系统相对分离可通过两光学系统所在外部载体结构的插拔式连接实现；所在外部载体结构可为设有该照明系统的手电筒筒头的外壳。
上述方案中，通过设置能发生相对位移或相对分离的第一光学系统及第二光学系统，并在任一光学系统内设置激光器，使得通过两光学系统的相对位移或相对分离与否，实现该照明系统发出照明光或激发光功能的自由切换，进而在实现高效率超远距离照明的同时，还可以利用激发光进行超远距离的求救或生火等功能，实现该照明系统的多功能用途。
优选地，第一光学系统及第二光学系统之间设有能使两光学系统相对旋转的旋转轴装置；或两光学系统为插拔式连接结构。第二光学系统围绕旋转轴装置旋转，使得两光学系统发生相对位移，激光器发出的激发光从第一光学系统直接出射至外界，实现激发光的功能；再次旋转第二光学系统使两光学系统复位即两光学系统非位移，照明光从第二光学系统出射至外界，实现照明光的功能；旋转的设置便于照明光或激发光功能的自由切换。插拔式连接使得通过插拔的方式实现两光学系统的连接和分离；当两光学系统分离时，激光器发出的激发光从第一光学系统直接出射至外界，实现激发光的功能；当两光学系统连接时，照明光从第二光学系统出射至外界，实现照明光的功能。
优选地，关于波长转换装置的具体设置位置，共有如下两种方案。
第一种方案是：第一光学系统内设有所述激光器及波长转换装置；激光器发出的激发光所在光轴和照明光的出射光轴不重合；第二光学系统内设有若干个光学反射器，若干个光学反射器用于对激发光进行反射并引导激发光至波长转换装置。两光学系统未发生位移或未发生分离时，激光器发出的激发光通过若干个光学反射器的偏转反射被引导至波长转换装置，波长转换装置吸收部分激发光形成受激光，受激光和未被波长转换装置吸收的激发光合成照明光由第二光学系统出射；两光学系统相对位移或相对分离时，激光器发出的激发光从第一光学系统直接出射。
优选地，第一种方案中，第二光学系统内设有第一光学反射器及第二光学反射器；两光学系统未发生位移或未发生分离时，激光器和第一光学反射器设于第一光轴上，照明光的出射光轴为第二光轴，波长转换装置位于第二光轴上；第一光学反射器用于对激光器发出的蓝色激发光进行第一次偏转，经第一次偏转后的蓝色激发光与第二光轴相交位置设置所述第二光学反射器，第二光学反射器用于对第一次偏转后的蓝色激发光进行第二次偏转以使蓝色激发光光轴与第二光轴重合。两光学系统未发生位移或未发生分离时，激光器发出的蓝色激发光沿第一光轴出射进入第二光学系统的第一光学反射器上，第一光学反射器用于使蓝色激发光发生第一次偏转，使蓝色激发光与第二光轴相交，相交位置设置的第二光学反射器用于使蓝色激发光发生第二次偏转重新进入第一光学系统，并沿第二光轴且与照明光相反的方向传输至波长转换装置上，波长转换装置吸收部分激发光形成受激光，受激光和未被波长转换装置吸收的激发光合成照明光沿第二光轴由第二光学系统出射，实现照明光的功能；两光学系统相对位移或相对分离时，使原用于激发光发生第一次偏转的第一光学反射器移出第一光轴，这样可使激发光直接从第一光学系统出射，实现激发光的功能。
第二种方案是：第一光学系统内设有所述激光器，第二光学系统内设有波长转换装置，且波长转换装置为透射式结构；激光器发出的激发光所在光轴和照明光的出射光轴重合。两光学系统未发生位移或未发生分离时，激光器发出的蓝色激发光直接穿越第二光学系统内透射式结构的波长转换装置，波长转换装置 吸收部分激发光形成受激光，受激光和未被波长转换装置吸收的激发光合成照明光由第二光学系统出射，实现照明光的功能；两光学系统相对位移或相对分离时，激光器发出的蓝色激发光直接从第一光学系统出射，实现激发光的功能。
优选地，第二光学系统内光出射方向最外部设有出光透镜，受激光和未被波长转换装置吸收的激发光经由出光透镜准直后合成近平行的照明光出射。可根据使用需求选择不同的出光透镜尺寸及参数进行搭配，以变换该光学系统的照射角度，实现远近距离变化的需求。
进一步优选地，激光器发出的激发光出射方向设有第一小透镜，第一小透镜用于将激光器发出的平行或近平行蓝色激发光聚焦于波长转换装置上。在波长转换装置的第一种方案中，第一小透镜设于第二光学系统内，且位于激光器和第一光学反射器之间；在波长转换装置的第二种方案中，第一小透镜设于第一光学系统内，且位于激光器和波长转换装置之间。
更进一步优选地，沿照明光出射方向设有第二小透镜，第二小透镜用于将受激光和未被波长转换装置吸收的激发光形成的照明光聚焦于出光透镜；波长转换装置位于第二小透镜和出光透镜的组合焦点上。这样设置便于将蓝色激发光聚焦于波长转换装置上，以便于波长转换装置吸收部分激发光形成的受激光与未吸收的激发光合成高能量密度的照明光；在波长转换装置的第一种方案中，第二小透镜设于第一光学系统内，且位于波长转换装置和第二光学反射器之间；在波长转换装置的第二种方案中，第二小透镜设于第二光学系统内，且位于波长转换装置和出光透镜之间。
优选地，第一光学系统内设有用于汇聚激光器发出激发光的调焦系统。调焦系统能实现激发光汇聚，降低点火点难度，使该照明系统空间设置更合理。
本发明的另一个目的，在于提供一种多功能用途的便携式激光手电筒，包括筒体及筒头，筒头包括能发生相对位移或相对分离的第一筒头及第二筒头，第一筒头与筒体连接；筒头内设有上述激光照明系统，且第一光学系统设于第一筒头内，第二光学系统设于第二筒头内；筒体内设有为激光器提供电能的电池，筒体上设有用于控制激光器打开和关闭的开关。
开关的设置便于打开和关闭该手电筒，为现有技术，在此不再详述。
优选地，第一筒头及第二筒头之间设有能使两者相对旋转的旋转轴装置；或第一筒头与第二筒头为插拔式连接结构。旋转轴装置或插拔式连接为现有技术，已广泛应用于机械领域，在此不再详述其结构。
发明的有益效果
有益效果
与现有技术相比，本发明的有益效果为：
通过设置能发生相对位移或相对分离的第一光学系统及第二光学系统，并在任一光学系统内设置激光器，使得通过两光学系统的相对位移或相对分离与否，实现该照明系统发出照明光或激发光功能的自由切换，进而在实现高效率超远距离照明的同时，还可以利用激发光进行超远距离的求救或生火等功能，实现该照明系统的多功能用途。
对附图的简要说明
附图说明
图1为实施例1一种多功能用途的便携式激光照明系统及激光手电筒的示意图。
图2为实施例1中第一光学系统及第二光学系统相对旋转产生位移时的示意图。
图3为实施例1中删除第二光学系统后第一光学系统的示意图。
图4为实施例2一种多功能用途的便携式激光照明系统及激光手电筒的示意图。
附图标识：100筒体；101开关；102电池；200第一光学系统，201激光器；202第二小透镜；203波长转换装置；300第二光学系统；301第一小透镜；302第一光学反射器；303第二光学反射器；304出光透镜；400第一光轴；500第二光轴；600旋转轴装置。
实施该发明的最佳实施例
本发明的最佳实施方式
实施例1
如图1至图3所示，本发明提供一种多功能用途的便携式激光照明系统，包括第一光学系统200及第二光学系统300；第一光学系统200内设有用于发出激发光的 激光器201，第一光学系统200或第二光学系统300内设有用于吸收部分激发光形成受激光的波长转换装置203；第二光学系统300设于光出射方向最外部，第一光学系统200及第二光学系统300能发生相对位移或相对分离；两光学系统未发生位移或未发生分离时，受激光和未被波长转换装置203吸收的激发光合成照明光由第二光学系统300出射；两光学系统相对位移或相对分离时，激光器201发出的激发光从第一光学系统200出射。
波长转换装置203为黄磷荧光粉片；黄磷荧光粉受部分激发光激发形成受激光。
两光学系统相对位移可通过两光学系统所在外部载体结构的相对旋转实现，可为平移式旋转或揭开式旋转；两光学系统相对分离可通过两光学系统所在外部载体结构的插拔式连接实现；所在外部载体结构可为设有该照明系统的手电筒筒头的外壳。
本发明通过设置能发生相对位移或相对分离的第一光学系统200及第二光学系统300，并在任一光学系统200内设置激光器201，使得通过两光学系统的相对位移或相对分离与否，实现该照明系统发出照明光或激发光功能的自由切换，进而在实现高效率超远距离照明的同时，还可以利用激发光进行超远距离的求救或生火等功能，实现该照明系统的多功能用途。
其中，如图2所示，第一光学系统200及第二光学系统300之间设有能使两光学系统相对旋转的旋转轴装置600。本实施例中，两光学系统为平移式旋转；旋转轴装置600为现有技术，已广泛应用于机械领域，在此不再详述其结构；第二光学系统300围绕旋转轴装置600旋转，使得两光学系统发生相对位移，激光器201发出的激发光从第一光学系统200直接出射至外界，实现激发光的功能；再次旋转第二光学系统300使两光学系统复位即两光学系统非位移，照明光从第二光学系统300出射至外界，实现照明光的功能；旋转的设置便于照明光或激发光功能的自由切换。当然，本实施例也可将两光学系统设置成插拔式连接以实现两光学系统的相对分离。
本实施例中，第一光学系统200内设有所述波长转换装置203；激光器201发出的激发光所在光轴和照明光的出射光轴不重合；第二光学系统300内设有若干个 光学反射器，若干个光学反射器用于对激发光进行反射并引导激发光至波长转换装置203。两光学系统未发生位移或未发生分离时，激光器201发出的激发光通过若干个光学反射器的偏转反射被引导至波长转换装置203，波长转换装置203吸收部分激发光形成受激光，受激光和未被波长转换装置203吸收的激发光合成照明光由第二光学系统300出射；两光学系统相对位移或相对分离时，激光器201发出的激发光从第一光学系统200直接出射。
本实施例中，如图1至图2所示，第二光学系统300内设有第一光学反射器302及第二光学反射器303；两光学系统未发生位移或未发生分离时，激光器201和第一光学反射器302设于第一光轴400上，照明光的出射光轴为第二光轴500，波长转换装置203位于第二光轴500上；第一光学反射器302用于对激光器201发出的蓝色激发光进行第一次偏转，经第一次偏转后的蓝色激发光与第二光轴500相交位置设置所述第二光学反射器303，第二光学反射器303用于对第一次偏转后的蓝色激发光进行第二次偏转以使蓝色激发光光轴与第二光轴500重合。两光学系统未发生位移或未发生分离时，激光器201发出的蓝色激发光沿第一光轴400出射进入第二光学系统300的第一光学反射器302上，第一光学反射器302用于使蓝色激发光发生第一次偏转，使蓝色激发光与第二光轴500相交，相交位置设置的第二光学反射器303用于使蓝色激发光发生第二次偏转重新进入第一光学系统200，并沿第二光轴500且与照明光相反的方向传输至波长转换装置203上，波长转换装置203吸收部分激发光形成受激光，受激光和未被波长转换装置203吸收的激发光合成照明光沿第二光轴500由第二光学系统300出射，实现照明光的功能；两光学系统相对位移或相对分离时，使原用于激发光发生第一次偏转的第一光学反射器302移出第一光轴400，这样可使激发光直接从第一光学系统200出射，实现激发光的功能。
另外，第二光学系统300内光出射方向最外部设有出光透镜304，受激光和未被波长转换装置203吸收的激发光经由出光透镜304准直后形成近平行的照明光出射。可根据使用需求选择不同的出光透镜304尺寸及参数进行搭配，以变换该光学系统的照射角度，实现远近距离变化的需求。
其中，激光器201发出的激发光出射方向设有第一小透镜301，第一小透镜301 用于将激光器201发出的平行或近平行蓝色激发光聚焦于波长转换装置203上。本实施例中，第一小透镜301设于第二光学系统300内，且位于激光器201和第一光学反射器302之间。
另外，沿照明光出射方向设有第二小透镜202，第二小透镜202用于将受激光和未被波长转换装置203吸收的激发光形成的照明光聚焦于出光透镜304；波长转换装置203位于第二小透镜202和出光透镜304的组合焦点上。这样设置便于将蓝色激发光聚焦于波长转换装置203上，以便于波长转换装置203吸收部分激发光形成的受激光与未吸收的激发光合成高能量密度的照明光。本实施例中，第二小透镜202设于第一光学系统200内，且位于波长转换装置203和第二光学反射器303之间。
另外，第一光学系统200内设有用于汇聚激光器201发出激发光的调焦系统。调焦系统能实现激发光汇聚，降低点火点难度，使该照明系统空间设置更合理。
本实施例还提供了一种多功能用途的便携式激光手电筒，包括筒体100及筒头，筒头包括能发生相对位移或相对分离的第一筒头及第二筒头，第一筒头与筒体100连接；筒头内设有上述激光照明系统，且第一光学系统200设于第一筒头内，第二光学系统300设于第二筒头内；筒体100内设有为激光器201提供电能的电池102，筒体100上设有用于控制激光器201打开和关闭的开关101。
开关101的设置便于打开和关闭该手电筒，为现有技术，在此不再详述。
其中，第一筒头及第二筒头之间设有能使两者相对旋转的旋转轴装置600。旋转轴装置600为现有技术，已广泛应用于机械领域，在此不再详述其结构。当然，本实施例也可将第一筒头及第二筒头设置为插拔式连接结构，以实现两筒头的相对分离。
发明实施例
本发明的实施方式
实施例2
实施例2与实施例1的区别在于：1.波长转换装置203的具体设置位置及具体结构不同，实施例1中的光路以反射为主以减少光路的绝对长度，实施例2以透射为主以简化光路结构；2.第一小透镜301的具体设置位置不同；3.第二小透镜202的 具体设置位置不同；4.第一光学系统200及第二光学系统300的连接方式不同。
具体地，如图4所示，第一光学系统200内设有所述激光器201，第二光学系统300内设有波长转换装置203，且波长转换装置203为透射式结构；激光器201发出的激发光所在光轴和照明光的出射光轴重合。两光学系统未发生位移或未发生分离时，激光器201发出的蓝色激发光直接穿越第二光学系统300内透射式结构的波长转换装置203，波长转换装置203吸收部分激发光形成受激光，受激光和未被波长转换装置203吸收的激发光合成照明光由第二光学系统300出射，实现照明光的功能；两光学系统相对位移或相对分离时，激光器201发出的蓝色激发光直接从第一光学系统200出射，实现激发光的功能。由于本实施例中，激光器201与波长转换装置203位于同一光轴上，激光器201发出的激发光无需光学反射器的引导即可传输至波长转换装置203上，相比于实施例1，实施例2简化了照明系统的结构；定义手电筒长度方向为纵向，与纵向垂直方向为横向，实施例2还能进一步减小手电筒横向尺寸。
本实施例中，第一小透镜301设于第一光学系统200内，且位于激光器201和波长转换装置203之间。
本实施例中，第二小透镜202设于第二光学系统300内，且位于波长转换装置203和出光透镜304之间。
本实施例中，第一光学系统200及第二光学系统300为插拔式连接结构，即两光学系统所在外部载体结构插拔式连接。插拔式连接使得通过插拔的方式实现两光学系统的连接和分离；当两光学系统分离时，激光器201发出的激发光从第一光学系统200直接出射至外界，实现激发光的功能；当两光学系统连接时，照明光从第二光学系统300出射至外界，实现照明光的功能。当然，本实施例也可使用实施例1中的旋转轴装置600，以实现第一光学系统200及第二光学系统300的相对旋转。
显然，本发明的上述实施例仅仅是为清楚地说明本发明技术方案所作的举例，而并非是对本发明的具体实施方式的限定。凡在本发明权利要求书的精神和原则之内所作的任何修改、等同替换和改进等，均应被包含在本发明权利要求的保护范围之内。

Claims (10)

  1. 一种多功能用途的便携式激光照明系统，其特征在于，包括第一光学系统(200)及第二光学系统(300)；第一光学系统(200)或第二光学系统(300)内设有用于发出激发光的激光器(201)及设有用于吸收部分激发光形成受激光的波长转换装置(203)；第二光学系统(300)设于光出射方向最外部，第一光学系统(200)及第二光学系统(300)能发生相对位移或相对分离；两光学系统未发生位移或未发生分离时，受激光和未被波长转换装置(203)吸收的激发光合成照明光由第二光学系统(300)出射；两光学系统相对位移或相对分离时，激光器(201)发出的激发光从第一光学系统(200)出射。
  2. 根据权利要求1所述的一种多功能用途的便携式激光照明系统，其特征在于，第一光学系统(200)及第二光学系统(300)之间设有能使两光学系统相对旋转的旋转轴装置(600)；或两光学系统为插拔式连接结构。
  3. 根据权利要求1所述的一种多功能用途的便携式激光照明系统，其特征在于，第一光学系统(200)内设有所述激光器(201)及波长转换装置(203)；激光器(201)发出的激发光所在光轴和照明光的出射光轴不重合；第二光学系统(300)内设有若干个光学反射器，若干个光学反射器用于对激发光进行反射并引导激发光至波长转换装置(203)。
  4. 根据权利要求3所述的一种多功能用途的便携式激光照明系统，其特征在于，第二光学系统(300)内设有第一光学反射器(302)及第二光学反射器(303)；两光学系统未发生位移或未发生分离时，激光器(201)和第一光学反射器(302)设于第一光轴(400)上，照明光的出射光轴为第二光轴(500)，波长转换装置(203)位于第二光轴(500)上；第一光学反射器(302)用于对激光器(201)发出的蓝色激发光进行第一次偏转，经第一次偏转后的 蓝色激发光与第二光轴(500)相交位置设置所述第二光学反射器(303)，第二光学反射器(303)用于对第一次偏转后的蓝色激发光进行第二次偏转以使蓝色激发光光轴与第二光轴(500)重合。
  5. 根据权利要求1所述的一种多功能用途的便携式激光照明系统，其特征在于，第一光学系统(200)内设有所述激光器(201)，第二光学系统(300)内设有波长转换装置(203)；激光器(201)发出的激发光所在光轴和照明光的出射光轴重合。
  6. 根据权利要求1所述的一种多功能用途的便携式激光照明系统，其特征在于，第二光学系统(300)内光出射方向最外部设有出光透镜(304)，受激光和未被波长转换装置(203)吸收的激发光经由出光透镜(304)准直后合成近平行的照明光出射。
  7. 根据权利要求6所述的一种多功能用途的便携式激光照明系统，其特征在于，激光器(201)发出的激发光出射方向设有第一小透镜(301)，第一小透镜(301)用于将激光器(201)发出的平行或近平行蓝色激发光聚焦于波长转换装置(203)上；沿照明光出射方向设有第二小透镜(202)，第二小透镜(202)用于将受激光和未被波长转换装置(203)吸收的激发光合成的照明光聚焦于出光透镜(304)；波长转换装置(203)位于第二小透镜(202)和出光透镜(304)的组合焦点上。
  8. 根据权利要求1所述的一种多功能用途的便携式激光照明系统，其特征在于，第一光学系统(200)内设有用于汇聚激光器(201)发出激发光的调焦系统。
  9. 一种多功能用途的便携式激光手电筒，包括筒体(100)及筒头，其特征在于，筒头包括能发生相对位移或相对分离的第一筒头及第二筒头，第一筒头与筒体(100)连接；筒头内设有权利要求1至8任一项所述的激光照明系统，且第一光学系统(200)设于第一筒头内，第二光学系统(300)设于第二筒头内；筒体(100) 内设有为激光器(201)提供电能的电池(102)，筒体(100)上设有用于控制激光器(201)打开和关闭的开关(101)。
  10. 根据权利要求9所述的一种多功能用途的便携式激光手电筒，其特征在于，第一筒头及第二筒头之间设有能使两者相对旋转的旋转轴装置(600)；或第一筒头与第二筒头为插拔式连接结构。
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