CN210179537U

CN210179537U - Zoom light condensing system and spotlight

Info

Publication number: CN210179537U
Application number: CN201921088758.XU
Authority: CN
Inventors: Chengzhong Yang; 杨承忠; Bo Zhang; 张波; Zhuo Wang; 王卓; Xionghui Zhang; 张雄辉
Original assignee: Guangzhou Pan Base Video Technology Co Ltd
Current assignee: Guangzhou Pan Base Video Technology Co Ltd
Priority date: 2019-07-11
Filing date: 2019-07-11
Publication date: 2020-03-24
Anticipated expiration: 2029-07-11

Abstract

The utility model discloses a spotlight system and spotlight zoom, spotlight system zooms includes along the condensing lens module and the zoom lens module that the light path direction set up, and zoom lens module and condensing lens module coaxial coupling and distance are adjustable, and the condensing lens module includes a plurality of lens and the coaxial range of a plurality of lens that set gradually along the light path direction, the light incident plane of lens is aspheric surface and light emergent plane and is the sphere. The spotlight comprises a zooming and condensing system, a luminescent lamp, a lamp holder and a radiator, wherein the luminescent lamp is arranged on the lamp holder, the lamp holder is arranged on the radiator, and the zooming and condensing system is arranged on the lamp holder. The utility model discloses a through the utilization ratio that the light incident face improves incident light for the lens of sphere for aspheric surface and light emergent face in the condensing lens module, change the system focus through the distance of adjusting condensing lens module and zoom lens module simultaneously, make the angle range of zooming of emergent light bigger. The utility model discloses a wide application is in the spotlight technical field that zooms.

Description

Zoom light condensing system and spotlight

Technical Field

The utility model relates to a spotlight technical field zooms especially relates to a spotlight system and spotlight zoom.

Background

In the embodiment of the present invention: zooming refers to changing the emergent angle of light, light spots indicate the effective brightness area formed by the emergent light on the surface of an object to be irradiated, and chromatic aberration refers to the obvious color temperature difference between the center and the edge of the light spots.

Some zoom condensing systems on the current market have simple structures and some structures are complex; the zooming and light-gathering system with a simple structure only adopts one zoom lens to realize the zooming and light-gathering effect, the zooming range is between 6 and 40 degrees, but the utilization rate of light rays is low when the zooming angle is small; the zoom condensing system with a complex structure has high utilization rate of light, but the minimum zoom angle is 18 degrees, and a smaller zoom angle cannot be achieved.

SUMMERY OF THE UTILITY MODEL

In view of the above, an object of the embodiments of the present invention is to provide a zoom light condensing system and a spotlight. The zoom light condensing system has better light utilization rate and larger zoom angle.

An embodiment of the utility model provides a spotlight system zooms, include the condensing lens module and the zoom lens module that set up along the light path direction, the zoom lens module with condensing lens module coaxial coupling and distance are adjustable, the condensing lens module includes along the light path direction set gradually a plurality of lens just a plurality of lens coaxial arrangement, the light incident plane of lens is aspheric surface and light emergent plane and is the sphere.

Preferably, the zoom lens module and the condenser lens module are coaxially connected by a screw.

Preferably, the condenser module includes 3 lenses.

Preferably, the spherical radius of curvature of the lens is less than 60 mm.

Preferably, the distance between the light emergent surface of the condenser lens module and the light incident surface of the zoom lens module is less than 75 mm.

Preferably, the zoom lens module comprises a plurality of zoom lenses, and the light incidence surface of the zoom lens is aspheric, and the light emergence surface of the zoom lens is spherical.

Preferably, the optical path diameter of the lens is less than 54 mm.

Preferably, the distance between the light incidence surface and the light emergence surface of the condenser lens module is 20-30 mm.

Preferably, the condenser module further includes a soft sheet installed between the lenses.

The embodiment of the utility model provides a spotlight is still provided, include spotlight system, luminescent light, lamp stand and radiator zoom, the luminescent light is installed on the lamp stand, the lamp stand is installed on the radiator, spotlight system installs zooms in order to make the light that the luminescent light sent get into on the lamp stand spotlight system zooms.

Implement the utility model discloses a following beneficial effect: the lens with the aspheric light incidence surface and the spherical light emergent surface in the collecting lens module improves the utilization rate of incident light, and simultaneously changes the focal length of the system by adjusting the distance between the collecting lens module and the zoom lens module, so that the zoom angle range of emergent light is larger.

Drawings

Fig. 1 is a schematic cross-sectional structure diagram of a zoom light-gathering system according to an embodiment of the present invention;

fig. 2 is a schematic cross-sectional structure diagram of a spotlight according to an embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.

As shown in fig. 1, an embodiment of the present invention provides a zoom light condensing system, which includes a condensing lens module 200 and a zoom lens module 100 arranged along an optical path direction, wherein the zoom lens module 100 and the condensing lens module 200 are coaxially connected by a screw rod and are adjustable in distance. The zoom lens module 100 is composed of two zoom lenses of which the light incident surface is aspheric and the light emergent surface is spherical; the condenser module 200 is composed of three lenses, the three lenses are coaxially arranged through a metal lens barrel, the axial distance range is 0.1 mm-3 mm, the light incident surface of the lens is aspheric, the light emergent surface of the lens is spherical, the spherical curvature radius of the lens is 55.7mm, and the distance range between the light emergent surface of the condenser module 200 and the light incident surface of the zoom lens module 100 is less than 75 mm.

In particular, the zoom lens module may select a fresnel screw lens.

The working principle of the zoom light-gathering system is as follows: when light emitted by the light source enters from the light incidence surface of the condenser lens module, the light is refracted by the lens in the condenser lens module, and then enters the subsequent zoom lens module after being refracted as much as possible, so that the utilization rate of the incident light is improved; the focal length of the system is changed by changing the distance between the light emergent surface of the condenser lens module and the light incident surface of the zoom lens module, so that the emergent light angle of the system can be linearly adjusted within a certain range. The utility model discloses an emergent light angle control range is 15 degrees to 60 degrees.

Preferably, the optical path diameter of the lens is less than 54 mm.

Specifically, the distance between the light incident surface and the light emergent surface of the condenser module and the light flux diameter of the lens in the condenser module are limited, and the light utilization rate of the incident light source can be improved better.

Preferably, the condenser module further includes a soft sheet installed between the lenses. Specifically, the soft light sheet can be arranged in front of the last lens of the condenser lens module along the light path direction, the uniformity of light spots is changed through the soft light sheet, chromatic aberration is reduced, and therefore the emergent light quality of the system is improved.

As shown in fig. 2, the heat sink 400 is mounted with a lamp socket 300, an LED lamp (not shown) is mounted on the lamp socket, the condenser module 200 is mounted on the lamp socket 300 by a screw, the condenser module 200 is connected with the zoom lens module 100 by a screw, and the LED lamp, the condenser module 200 and the zoom lens module 100 are on the same axis.

The spotlight has the advantages that the spotlight is the same as a zooming and condensing system, the zooming range of the emergent light of the spotlight is larger, the light spots are more uniform, the chromatic aberration is smaller, and the quality is higher.

While the preferred embodiments of the present invention have been described, the present invention is not limited to the embodiments, and those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present invention, and such equivalent modifications or substitutions are intended to be included within the scope of the present invention as defined by the appended claims.

Claims

1. The utility model provides a spotlight system zooms, its characterized in that includes condensing lens module and the zoom lens module that sets up along the light path direction, the zoom lens module with condensing lens module coaxial coupling and apart from adjustable, the condensing lens module includes along the light path direction set gradually a plurality of lens just the coaxial range of a plurality of lens, the light incident plane of lens is aspheric surface and light emergent face and is the sphere.

2. The zoom concentrating system of claim 1, wherein the zoom lens module and the collection lens module are coaxially connected by a screw.

3. The zoom concentrating system of claim 2, wherein the concentrating mirror module comprises 3 lenses.

4. A variable focus system according to claim 3, wherein said lens has a spherical radius of curvature of less than 60 mm.

5. The zoom concentrating system of claim 4, wherein the distance between the light exit surface of the concentrating mirror module and the light entrance surface of the zoom mirror module is less than 75 mm.

6. The zoom concentrating system of claim 5, wherein the optical path diameter of the lens is less than 54 mm.

7. The zoom condensing system of claim 6, wherein the distance between the light incident surface and the light exit surface of the condensing lens module is 20-30 mm.

8. The zoom lens system of claim 7 wherein the zoom lens module comprises a plurality of zoom lenses, the light incident surface of the zoom lens is aspheric and the light exit surface is spherical.

9. A zoom concentrating system according to any one of claims 1-8, wherein the concentrating mirror module further comprises a soft sheet mounted between the lenses.

10. A spotlight comprising a variable focus light focusing system according to any of claims 1 to 9, a light emitting lamp mounted on said lamp holder, a lamp holder mounted on said heat sink, and a heat sink, said variable focus light focusing system being mounted on said lamp holder so that light emitted by said light emitting lamp enters said variable focus light focusing system.