Soft lens module

Abstract

The utility model provides a soft lens module which comprises a shell, a light path channel is formed in the shell, a soft assembly is arranged in the light path channel, the soft assembly comprises a dodging sheet, a Fresnel lens and a plano-convex lens, and the dodging sheet, the Fresnel lens and the plano-convex lens are sequentially arranged in the light path channel in parallel. The utility model provides a soft lens module which can perform scattering blurring and focusing on a light beam with a pattern so as to improve the lighting effect, so that the transition edge of the generated pattern is better in soft feeling, the light atmosphere feeling is improved, and the original shape of a dynamic pattern is kept at the same time.

Description

Technical Field

[0001] The utility model relates to the technical field of atmosphere projection devices, and particularly relates to a soft lens module. Background Art

[0002] Atmosphere lights for creating an atmosphere are mostly applied to scenes with stage entertainment effect requirements such as theaters, studios, bars, and discos; with the increasing demand for home entertainment or creating a specific projection atmosphere, small and portable, multi-functional and low-power small atmosphere projection lights are increasingly accepted by people and applied to home entertainment life; a light-emitting bottom plate with various LED lamp beads is usually used as a light source inside the atmosphere projection light, and various projections such as a starry sky and flowing water waves are formed after the colored light beams are refracted and reflected, adding rich and colorful life pleasures to people.

[0003] When the existing pattern projection lamps project, a pattern disk with different patterns is placed in front of the light source, so that the lamp can emit a light beam with a pattern. However, the light beam with the pattern diverges severely, presenting the form of a line light source or a point light source, and the light is too divergent during the propagation process, resulting in a blurred pattern outline and unable to directly form a complete pattern with an atmosphere on the wall or ceiling.

[0004] Therefore, there is an urgent need for an optical module that can focus and soften the pattern light beam. Summary of the Utility Model

[0005] Aiming at the deficiencies of the prior art, the utility model provides a soft lens module, which can scatter and blur and focus the light beam with a pattern to improve the light efficiency, make the transition edge of the generated pattern softer, improve the light atmosphere, and retain the original shape of the dynamic pattern.

[0006] The technical solution of the utility model is realized as follows:

[0007] A soft lens module includes a housing, an optical path channel is formed in the housing, a softening component is arranged in the optical path channel, the softening component includes a light homogenizing sheet, a Fresnel lens and a plano-convex lens, and the light homogenizing sheet, the Fresnel lens and the plano-convex lens are sequentially arranged in parallel in the optical path channel.

[0008] In a further technical solution of this embodiment, the focusing surface side of the Fresnel lens is arranged away from the light homogenizing sheet side.

[0009] In a further technical solution of this embodiment, the light homogenizing sheet includes a light guide plate and an atomization layer covering the light guide plate, and the atomization layer covers one side or both sides of the light guide plate.

[0010] Further technical solution of this embodiment lies in that the distance between the Fresnel lens and the light homogenizing sheet is 1 mm to 100 mm, and the focal length of the Fresnel lens is 20 mm to 300 mm.

[0011] Further technical solution of this embodiment lies in that the distance between the plano-convex lens and the Fresnel lens is 1 mm to 200 mm, and the focal length of the plano-convex lens is 20 mm to 300 mm.

[0012] Further technical solution of this embodiment lies in that the principal optical axis directions of the Fresnel lens and the plano-convex lens coincide.

[0013] Further technical solution of this embodiment lies in that the cross-sectional shape of the optical path channel formed in the housing is circular.

[0014] Compared with the prior art, the present utility model has the following advantages:

[0015] In the soft lens module provided by the present utility model, by arranging the light homogenizing sheet, the patterned light beam is scattered after refraction by the light homogenizing sheet, so that the emitted point light source and line light source are transformed into surface light, and the edge of the projected pattern has a soft transition. In order to accurately project the diverging pattern light beam on the ceiling or wall, a Fresnel lens and a plano-convex lens are arranged on the light beam passing path for collimation and focusing, so that a pattern with accurate contour can be projected on the projection object at a certain distance. At the same time, the scattered light is fully collected by the two lenses, improving the light efficiency and avoiding the image from being too dim, effectively improving the atmosphere and layering of the projection. In addition, by setting the focal lengths and distances of the Fresnel lens and the plano-convex lens, the softness of the projected pattern on the projection object is ensured. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the following will briefly introduce the drawings required for the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0017] Figure 1 It is a schematic structural diagram of a soft lens module of the present utility model;

[0018] Figure 2 It is a schematic internal structure diagram of a soft lens module of the present utility model.

[0019] Reference Signs:

[0020] 1 - Housing;

[0021] 2 - Soft component; 21 - Light homogenizing sheet; 22 - Fresnel lens; 23 - Plano-convex lens. Detailed implementation mode

[0022] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments in the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0023] See Figures 1 to 2 , the embodiments of the present utility model disclose a soft lens module, including a housing 1, an optical path channel is formed in the housing 1, and the cross-sectional shape of the optical path channel formed in the housing 1 is circular.

[0024] A soft component 2 is provided in the optical path channel. The soft component 2 includes a light homogenizing sheet 21, a Fresnel lens 22, and a plano-convex lens 23. The light homogenizing sheet 21, the Fresnel lens 22, and the plano-convex lens 23 are sequentially arranged in parallel in the optical path channel.

[0025] In this embodiment, the focusing surface side of the Fresnel lens 22 is arranged away from the side of the light homogenizing sheet 21.

[0026] In this embodiment, the light homogenizing sheet 21 includes a light guide plate and an atomization layer covering the light guide plate. The atomization layer covers one or both sides of the light guide plate.

[0027] The distance between the Fresnel lens 22 and the light homogenizing sheet 21 is 1 mm to 100 mm, and the focal length of the Fresnel lens 22 is 20 mm to 300 mm.

[0028] The distance between the plano-convex lens 23 and the Fresnel lens 22 is 1 mm to 200 mm, and the focal length of the plano-convex lens 23 is 20 mm to 300 mm.

[0029] In this embodiment, the main optical axis directions of the Fresnel lens 22 and the plano-convex lens 23 coincide.

[0030] In the soft lens module provided in this embodiment, by setting the light homogenizing sheet 21, the patterned light beam is scattered after being refracted by the light homogenizing sheet 21, so that the emitted point light source and line light source are transformed into surface light, and the edge of the projected pattern transitions smoothly. In order to accurately project the diverging pattern light beam onto the ceiling or wall, a Fresnel lens 22 and a plano-convex lens 23 are arranged on the light beam passing path for collimation and focusing, so that a pattern with an accurate outline can be projected onto the projection object at a certain distance away. At the same time, the scattered light is fully collected by the two lenses, improving the light efficiency and avoiding the image from being too dim, effectively enhancing the atmosphere and sense of hierarchy of the projection. In addition, by setting the focal lengths and distances of the Fresnel lens 22 and the plano-convex lens 23, the softness of the projected pattern on the projection object is ensured.

[0031] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A soft lens module, including a housing (1), an optical path channel is formed in the housing (1), characterized in that, A softening component is provided in the optical path channel, and the softening component (2) includes a light homogenizing sheet, a Fresnel lens (22), and a plano-convex lens. The light homogenizing sheet, the Fresnel lens (22), and the plano-convex lens are sequentially arranged in parallel in the optical path channel; The light homogenizing sheet (21) includes a light guide plate and an atomization layer covering the light guide plate. The atomization layer covers one or both sides of the light guide plate.

2. The soft lens module according to claim 1, wherein The focusing surface side of the Fresnel lens is arranged away from the side of the light homogenizing sheet (21).

3. The soft lens module according to claim 1, wherein The distance between the Fresnel lens (22) and the light homogenizing sheet (21) is 1 mm to 100 mm, and the focal length of the Fresnel lens (22) is 20 mm to 300 mm.

4. The soft lens module according to claim 1, wherein The distance between the plano-convex lens (23) and the Fresnel lens (22) is 1 mm to 200 mm, and the focal length of the plano-convex lens (23) is 20 mm to 300 mm.

5. The soft lens module according to claim 1, wherein The main optical axis directions of the Fresnel lens (22) and the plano-convex lens (23) coincide.

6. The soft lens module according to claim 1, wherein The cross-sectional shape of the optical path channel formed in the housing (1) is circular.

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