CN218332271U

CN218332271U - Projection optical machine structure

Info

Publication number: CN218332271U
Application number: CN202222415364.9U
Authority: CN
Inventors: 李鹰; 李耀华; 黄剑武; 马超明
Original assignee: Fusheng Guangdong Automotive Electronics Co ltd
Current assignee: Fusheng Guangdong Automotive Electronics Co ltd
Priority date: 2022-09-09
Filing date: 2022-09-09
Publication date: 2023-01-17
Anticipated expiration: 2032-09-09

Abstract

The utility model relates to the technical field of projection, in particular to a projection optical-mechanical structure, which comprises a lens cone, an imaging lens module, an illuminating lens module and a film bracket, wherein the imaging lens module, the illuminating lens module and the film bracket are arranged in the lens cone; the two sides of the film support are respectively provided with the imaging lens module and the lighting lens module in an abutting mode; the film support is provided with a film; the other end of the illuminating lens module is provided with a light source, and light rays of the light source penetrate through the illuminating lens module and then completely cover the film. The utility model solves the problems that the existing projection optical machine needs more lenses to realize zooming, and the cost is higher; and when the optical machine is applied to the light and shadow tail gate controller, because the inclined arrangement results in forming inclined projection patterns, and the problem that automatic correction can not be realized.

Description

Projection optical machine structure

Technical Field

The utility model relates to a projection technology field, in particular to projection ray apparatus structure.

Background

The projector optical machine is characterized in that a light source, a display chip, a radiator and a light path of a projector are designed in a case, and the optical machine is formed by the light source, the display chip, the radiator and the light path; the optical machine is the most central part of the projector and is also the main place for image formation of the projector picture, the optical machine of the common projector can divide the light emitted by the light source of the projector into three colors of blue, green and red, and the light is reflected and refracted to the polarizer through the lens in the optical machine to form the required color image.

Most of existing projection light machines realize zooming by adjusting the distance of lenses, so that clear projection can be obtained at different heights, but the mode requires more lenses and higher cost; in addition, the setting angle of the optical machine in the application of the light and shadow tail gate controller is an inclined angle, so that the projection pattern is also inclined, and although a clear pattern can be obtained through a zooming mode, the pattern distortion cannot be automatically corrected.

Therefore, a projection optical machine structure is produced.

SUMMERY OF THE UTILITY MODEL

The utility model provides a projection optical machine structure, which mainly solves the problems that the existing projection optical machine needs more lenses to realize zooming, and the cost is higher; and when the optical machine is applied to the light and shadow tail gate controller, because the inclined arrangement results in forming inclined projection patterns, and the problem that automatic correction can not be realized.

The utility model provides a projection optical machine structure, which comprises a lens cone, and an imaging lens module, an illuminating lens module and a film bracket which are arranged in the lens cone; the two sides of the film support are respectively provided with the imaging lens module and the lighting lens module in an abutting mode; the film support is provided with a film; the other end of the illuminating lens module is provided with a light source, and light of the light source penetrates through the illuminating lens module and then covers the film comprehensively.

Preferably, a fixing groove for installing the film is formed in the film support, and the inner bottom surface of the fixing groove is an inclined surface.

Preferably, the lighting lens module comprises a first lighting lens and a second lighting lens which are sequentially installed; the first illumination lens is disposed proximate to the light source.

Preferably, the film frame further comprises a first space ring sleeved outside the film frame, the second illuminating lens and the first illuminating lens.

Preferably, the imaging lens module comprises a first imaging lens, a second imaging lens, a third imaging lens and a fourth imaging lens which are sequentially arranged; the first imaging lens is arranged close to the film support; the fourth imaging lens is arranged at the end part of the lens barrel.

Preferably, the imaging lens module further comprises a second spacer ring and a third spacer ring; the first imaging lens and the second imaging lens are respectively fixed at two ends of the second space ring; the third spacer is disposed between the third imaging lens and the fourth imaging lens.

Preferably, the cross sections of the first imaging lens, the second imaging lens and the third imaging lens are gradually increased.

Preferably, a locking cover is further disposed on an end portion of the lens barrel away from the light source.

From the above, use the utility model provides a technical scheme can obtain following beneficial effect:

firstly, the film is arranged on the film support in the technical scheme provided by the utility model, the adjustment of focal length can be realized to ensure definition by changing different film supports, the adjustment of the setting angle of the film can be realized to adapt to different installation requirements, and the compatibility of the projection light machine to different environments and requirements is improved;

second, the utility model provides an accessible changes the pattern on the film piece among the technical scheme, realizes the change of projection pattern, and corrects the distortion degree of projection pattern, and then realizes the aesthetic property requirement of user to the projection pattern.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.

FIG. 1 is a cross-sectional view of a lens barrel of a projection optical machine according to an embodiment of the present invention;

fig. 2 is a schematic view of an installation structure of a film support and a film in the embodiment of the present invention;

fig. 3 is an exploded view of a projection light engine according to an embodiment of the present invention.

Detailed Description

The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without any creative effort belong to the protection scope of the present invention.

The existing projection light machine needs more lenses for realizing zooming, and the cost is higher; and when the optical machine is applied to the light and shadow tail gate controller, because the inclined arrangement results in forming inclined projection patterns, and the problem that automatic correction can not be realized.

As shown in fig. 1 to fig. 3, in order to solve the above problem, the present embodiment provides a projection optical machine structure, which mainly includes a lens barrel 10, and an imaging lens module, an illumination lens module and a film frame 20 disposed in the lens barrel 10; the two sides of the film support 20 are respectively provided with an imaging lens module and an illuminating lens module in an abutting mode; the film support 20 is provided with a film 21; the other end of the lighting lens module is provided with a light source 30, and the light of the light source 30 penetrates through the lighting lens module and then covers the film 21 completely.

Preferably, the outer surface of the projection light machine structure in this embodiment is formed by a strip-shaped and sealed structure formed by the lens barrel 10, so that when the current projection light machine is applied in an outdoor environment, the waterproof performance of the current projection light machine can be improved, and the service life of the current projection light machine can be prolonged.

Preferably, in this embodiment, a fixing seat is further disposed outside the lens barrel 10, and is used for matching with an external fastener and fixing the position of the projector engine.

Preferably, in the present embodiment, the imaging lens module, the illuminating lens module, and the film frame 20 are all disposed in a center, and the film 21 on the film frame 20 is also disposed in a center, so that the light emitted from the light source 30 can sequentially pass through the above structures.

In this embodiment, the illumination lens module is used for condensing light, that is, meeting the illumination requirement of the projection light machine; the imaging lens module is used for amplifying the patterns on the film 21 and meets the size requirement of the patterns projected to the ground by the projection light machine.

More specifically, a fixing groove for mounting the film 21 is formed in the film holder 20, and an inner bottom surface of the fixing groove is an inclined surface.

In this embodiment, there are a plurality of film holders 20, and different film holders 20 have different fixing groove depths and different inner bottom surface inclinations, so that a user can select a suitable film holder 20 according to actual application requirements. Usually, the film 21 is parallel to the bottom surface of the fixing groove, that is, the film 21 slants to receive the light emitted from the light source 30, and the slant direction enables the projector to project the image onto the ground and avoid the image distortion.

More specifically, the illumination lens module includes a first illumination lens 41, a second illumination lens 42, which are sequentially mounted; the first illumination lens 41 is disposed close to the light source 30; the illuminating device further comprises a first space ring 43 sleeved outside the film support 20, the second illuminating lens 42 and the first illuminating lens 41.

In this embodiment, the first spacer 43 is used to fix the first illumination lens 41, the second illumination lens 42 and the film support 20, and ensure that the light of the light source 30 can pass through the first illumination lens 41, the second illumination lens 42 and the film 21 on the film support 20 in sequence.

More specifically, the imaging lens module includes a first imaging lens 51, a second imaging lens 52, a third imaging lens 53, and a fourth imaging lens 54, which are mounted in this order; the first imaging lens 51 is disposed close to the film frame 20; the fourth imaging lens 54 is provided at an end of the lens barrel 10.

More specifically, the imaging lens module further includes a second spacer 55 and a third spacer 56; the first imaging lens 51 and the second imaging lens 52 are fixed to both ends of the second spacer 55, respectively; the third spacer 56 is disposed between the third imaging lens 53 and the fourth imaging lens 54.

Preferably, the cross sections of the first imaging lens 51, the second imaging lens 52 and the third imaging lens 53 are gradually increased. In this embodiment, the areas of the first imaging lens 51, the second imaging lens 52 and the third imaging lens 53 which are gradually increased can effectively realize the projection expansion of the pattern on the film 21.

Preferably, but not limited to, the fourth imaging lens 54 is a convex lens in this embodiment, and the remaining imaging lenses are plane mirrors.

In the present embodiment, a diaphragm 60 is further provided between the film frame 20 and the first imaging lens 51.

In the present embodiment, a locking cover 70 is further disposed on the end of the lens barrel 10 away from the light source 30.

In summary, the optical machine structure for projection provided by this embodiment is mainly designed by splitting the optical machine structure into parts, and a suitable film holder can be selected for assembly according to different application scenarios, so as to achieve the integrity, the aesthetic property, and the definition of the projected image in the tail gate control.

The above-described embodiments do not limit the scope of the present invention. Any modification, equivalent replacement, and improvement made within the spirit and principle of the above-described embodiments should be included in the protection scope of the technical solution.

Claims

1. A projection optical machine structure is characterized in that: the lens comprises a lens barrel, and an imaging lens module, an illuminating lens module and a film bracket which are arranged in the lens barrel; the two sides of the film support are respectively provided with the imaging lens module and the lighting lens module in an abutting mode; the film support is provided with a film; the other end of the illuminating lens module is provided with a light source, and light rays of the light source penetrate through the illuminating lens module and then completely cover the film.

2. A projection optical machine structure according to claim 1, characterized in that: and a fixing groove for mounting the film is formed in the film support, and the inner bottom surface of the fixing groove is an inclined surface.

3. A projection optical machine structure according to claim 2, characterized in that: the lighting lens module comprises a first lighting lens and a second lighting lens which are sequentially arranged; the first illumination lens is disposed proximate to the light source.

4. A projection optical machine structure according to claim 3, characterized in that: the film support, the second illuminating lens and the first spacing ring are sleeved outside the film support, the second illuminating lens and the first illuminating lens.

5. A projection optical machine structure according to claim 2, characterized in that: the imaging lens module comprises a first imaging lens, a second imaging lens, a third imaging lens and a fourth imaging lens which are sequentially arranged; the first imaging lens is arranged close to the film support; the fourth imaging lens is arranged at the end part of the lens barrel.

6. A projection optical machine structure according to claim 5, characterized in that: the imaging lens module further comprises a second space ring and a third space ring; the first imaging lens and the second imaging lens are respectively fixed at two ends of the second space ring; the third spacer is disposed between the third imaging lens and the fourth imaging lens.

7. A projection optical machine structure according to claim 6, characterized in that: the cross sections of the first imaging lens, the second imaging lens and the third imaging lens are gradually increased.

8. A projection optical machine structure according to any one of claims 1 to 7, characterized in that: and a locking gland is further arranged at the end part of the lens barrel, which is far away from the light source.