CN213272488U

CN213272488U - Periscopic projection lens applied to car lamp

Info

Publication number: CN213272488U
Application number: CN202021427064.7U
Authority: CN
Inventors: 辛忠华; 万毅栋; 丁文荣
Original assignee: Varroc TYC Auto Lamps Co Ltd
Current assignee: Varroc TYC Auto Lamps Co Ltd
Priority date: 2020-07-20
Filing date: 2020-07-20
Publication date: 2021-05-25
Anticipated expiration: 2030-07-20

Abstract

The utility model discloses a periscopic projection lens applied to a car lamp, which comprises a shell, wherein an LED light source is arranged at the upper end inside the shell, a condensing lens is arranged at the lower end of the LED light source, a film is arranged at the lower end of the condensing lens, a reflector is arranged at the lower end of the film, a rotating structure is arranged at the position outside the shell corresponding to the film, a sliding structure is arranged at the lower end of the reflector, and an operation cap is arranged at the upper ends of the rotating structure and the sliding structure; the utility model discloses realize deflecting of optical system optical axis direction, no longer confine all components and parts to arrange the system overlength that causes in same direction, can also change the change of the type of projection image, size through rotating-structure, and can also realize the change of projection image angle, position through sliding structure, compare with conventional projection lamp convenient more nimble, can adapt to different scene demands.

Description

Periscopic projection lens applied to car lamp

Technical Field

The utility model relates to a car light field specifically is a periscope formula projecting lens who is applied to car light.

Background

Along with the continuous development of modern automobiles to the electromotion, the intellectualization, the networking and the sharing, more and more automobiles begin to apply a large amount of new technologies, the automobile lamps are not limited to the traditional illuminating lamps and signal lamps, more and more automobiles begin to apply the beacon lamps, the Logo lamps and the like, different signs and signal icons are projected around the automobile body and inside the automobile, at present, the projection type lamps for the automobiles are mainly formed by arranging four or five lenses on one line to form a projection system, the projection direction can only be in the direction of the central line of the lenses, and certain defects exist:

the projection lamp has the advantages that the direction is single, the size is too long, and the variable and flexible requirements cannot be met due to the limitation of factors such as vehicle space and modeling, for example, the projection lamp for the rearview mirror illumination cannot be installed in the traditional projection lamp due to the fact that the direction of the rearview mirror perpendicular to the ground is short and the space in the horizontal direction is long;

secondly, the projection pattern is single, the size is single, and the interestingness is low;

the projection direction is fixed and can not be changed, and if the existing projection position is not ideal, the projection angle and the projection position can not be changed, so that the projection effect is poor;

the utility model discloses a be applied to periscopic projection lens of car light for solve above-mentioned problem.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a be applied to periscopic projection lens of car light to solve the problem among the prior art.

In order to achieve the above object, the utility model provides a following technical scheme: a periscopic projection lens applied to a car lamp comprises a shell, wherein the shell is of a cylindrical structure and used for supporting and installing parts, an LED light source is arranged at the upper end inside the shell and fixed at the upper end inside the shell, a condensing lens is arranged at the lower end of the LED light source and fixedly arranged on the inner wall of the shell and used for adjusting light so that the light emitted by the LED light source can be uniformly projected onto a film, a film is arranged at the lower end of the condensing lens and fixedly arranged on the inner wall of the shell, patterns are drawn on the film, the film is provided with a plurality of patterns, the size and the type of the patterns on each film can be customized as required, the light penetrates through the film to project the patterns, a reflector is arranged at the lower end of the film, the upper end of the reflector is hinged with the shell and used for changing the path of the light, the projection direction of the patterns on the film is changed, the position, corresponding to the film, of the outer portion of the shell is provided with a rotating structure, the rotating structure rotates to enable different films to be arranged at the lower end of the condensing lens, the device projects the patterns of different sizes or types, the lower end of the reflector is provided with a sliding structure, the reflecting angle of the reflector can be changed when the sliding structure slides, the positions of the patterns projected by the device can be changed, operation caps are arranged at the upper ends of the rotating structure and the sliding structure, and the operation caps are used for operating the rotating structure and the sliding structure.

Preferably, an imaging lens group is arranged on one side of the reflector, the imaging lens group is a first scheme of the device and is used for magnifying an image reflected by the reflector and correcting aberration to make the magnified image consistent with an original image as much as possible, the imaging lens group comprises a first convex lens, a second convex lens, a concave-convex lens and a third convex lens, the first convex lens, the second convex lens, the concave-convex lens and the third convex lens are sequentially arranged from a position close to the reflector to a position far away from the reflector, the imaging lens group also comprises a convex lens, a concave-convex lens, a convex lens and a convex lens from a position close to the reflector to a position far away from the reflector, the imaging lens group is externally provided with a second shell which is of a cylindrical structure and is used for fixing the imaging lens group in the imaging lens group, the upper end of the second outer shell is hinged with the shell, the lower end of the second outer shell is connected with the sliding structure, and when the sliding structure drives the lower end of the second outer shell to slide, the imaging angle of the reflector and the imaging lens group can be rotated.

Preferably, an imaging lens group is arranged between the film sheet and the reflector, the imaging lens group is a second scheme of the device, the imaging lens group is used for amplifying the image projected by the film sheet, and simultaneously correcting aberration to make the amplified image consistent with the original image as much as possible, the imaging lens group comprises a first convex lens, a second convex lens, a concave-convex lens and a third convex lens, the first convex lens, the second convex lens, the concave-convex lens and the third convex lens are sequentially arranged from the position close to the film sheet to the position close to the reflector, the imaging lens group also comprises a convex lens, a concave-convex lens, a convex lens and a convex lens from the position close to the reflector to the position far from the reflector, or the convex lens, the concave-convex lens and the convex lens are emitted, one side of the reflector is provided with a glass cover surface, the image reflected by the reflector is projected out of the device through the glass cover surface, the upper end of the glass cover surface is hinged with the shell, the lower end of the glass cover surface is connected with the sliding structure, and when the sliding structure drives the lower end of the glass cover surface to slide, the imaging angle of the reflector and the glass cover surface can be rotated.

Preferably, the rotating structure comprises a film support, a groove, a round-head pin, a spring, a connecting disc, a fixed disc, a hemispherical groove and a rotating column, the film support is positioned on the outer ring of the film, the film support is fixedly connected with the film, the groove is positioned inside one side of the film support, the round-head pin is positioned in the groove, the spring is positioned in a cavity formed by the groove and the round-head pin, the connecting disc is positioned in the middle of a ring formed by a plurality of films, the connecting disc is fixedly connected with the films, the fixed disc is positioned at the lower end of the connecting disc, the fixed disc is fixed on the shell, the hemispherical groove is positioned on the upper part of the fixed disc, the head of the round-head pin is inserted into the hemispherical groove, so that the rotating structure is not in a relatively stable state under the action of external force, the groove corresponds to the hemispherical groove, and the rotating column passes through the connecting disc, the rotary column and the connecting disc are fixedly arranged, when the rotary column is rotated by external force, the connecting disc is driven to rotate, the round-head pin is separated from the semispherical groove under the action of torque force, the spring is extruded and deformed to generate elastic force, the rotary column continues to rotate until the round-head pin meets the next semispherical groove, the round-head pin enters the next semispherical groove under the action of the elastic force, and the process drives different film pieces to rotate into the shell to complete the change of pattern types and pattern sizes.

Preferably, the sliding structure comprises a first sliding block, a horizontal sliding rail, a bent sliding rail, a second sliding block, a flexible strip, a hard sleeve and a pushing column, the first sliding block is positioned at the lower end of the reflector, the first sliding block is fixedly connected with the reflector, the horizontal sliding rail is positioned at the lower end of the first sliding block, the horizontal sliding rail can slide on the first sliding block, the bent sliding rail is positioned at one side of the horizontal sliding rail, the bent sliding rail is fixedly connected with the horizontal sliding rail, the second sliding block is positioned at the upper end of the bent sliding rail, the second sliding block can slide on the bent sliding rail, the flexible strip is connected with the first sliding block and the second sliding block, the flexible strip can be bent, the hard sleeve is sleeved on the flexible strip, the hard sleeve is provided with a plurality of the hard sleeves, the pushing column is connected with the first sliding block, the upper end of the first sliding block is connected with the second shell or the glass cover, the soft strip and the hard sleeve are driven to enable the second sliding block to slide on the bent sliding rail, meanwhile, the first sliding block drives the reflector to change in angle, and the second sliding block drives the second shell or the glass cover surface to change in angle, so that the angle and the position of an image projected by the device are changed.

Preferably, the upper end of the second sliding block is connected with the second shell.

Preferably, the upper end of the second sliding block is connected with a glass cover surface.

Preferably, the rotation post middle part is provided with the annular bulge, rotate and connect through the connecting block between post and the casing, the annular bulge makes to rotate that axial direction is fixed between post and the connecting block, and the circumference direction is rotatable, it is provided with the arch to rotate post upper end both sides, be provided with the shallow slot in the middle of the operation cap lower extreme, rotate in post and the protruding shallow slot that inserts, when pressing down the operation cap down, when making to rotate post and protruding insertion shallow slot, rotate the operation cap, can drive and rotate the post and rotate to this control revolution mechanic.

Preferably, the lower end of the operating cap is provided with an annular deep groove around the shallow groove, the pushing column is inserted into the annular deep groove, and when the operating cap is pulled up to separate the rotating column and the protrusion from the shallow groove, the operating cap is pushed to drive the pushing column so as to control the sliding structure.

Compared with the prior art, the beneficial effects of the utility model are that:

1. the utility model can realize the deflection of the optical axis direction of the optical system by adding the optical steering system, is not limited to the overlong system caused by arranging all components in the same direction, is more convenient and flexible compared with the conventional projection lamp, and can reasonably utilize the space;

2. the utility model has compact structure and clear imaging, and can be used for various interior and exterior decorative lamps, intelligent light configuration, and the like;

3. the utility model realizes the change of the type and the size of the projection image through the rotating structure, and the interest is increased;

4. the utility model discloses a sliding construction realizes the change of projection image angle, position, if current projection position is unsatisfactory, can change projection angle and projection position, relatively with conventional projection lamp convenient more nimble, can adapt to different scene demands.

Drawings

Fig. 1 is a cross-sectional view of a periscopic projection lens applied to a vehicle lamp according to a first embodiment of the present invention;

fig. 2 is a cross-sectional view of a second periscopic projection lens applied to a vehicle lamp according to the present invention;

fig. 3 is a cross-sectional view of the first imaging lens assembly of the present invention;

fig. 4 is a sectional view of a second embodiment of the imaging lens assembly of the present invention;

fig. 5 is a schematic structural view of the rotating structure of the present invention;

FIG. 6 is a cross-sectional view of the rotating structure A of the present invention;

fig. 7 is a top view of the fixing plate of the present invention;

fig. 8 is a schematic structural view of the sliding structure of the present invention;

fig. 9 is a cross-sectional view of the operation cap of the present invention.

Reference numerals: 1. a housing; 2. an LED light source; 3. a condenser lens; 4. film; 5. a mirror; 6. a rotating structure; 7. a sliding structure; 8. an operating cap; 9. an imaging lens group; 10. a first convex lens; 11. a second convex lens; 12. a concave-convex lens; 13. A third convex lens; 14. a second housing; 15. covering the glass surface; 16. a film holder; 17. a groove; 18. a round-head pin; 19. a spring; 20. a connecting disc; 21. fixing the disc; 22. a hemispherical groove; 23. rotating the column; 24. a first sliding block; 25. a horizontal slide rail; 26. bending the sliding rail; 27. a second sliding block; 28. a flexible strip; 29. a hard cover; 30. pushing the column; 31. the ring is convex; 32. connecting blocks; 33. a protrusion; 34. shallow-groove; 35. and an annular deep groove.

Detailed Description

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

Example (b): referring to fig. 1-2, in the present invention, a periscopic projection lens for a vehicle lamp comprises a housing 1, the housing 1 is a cylindrical structure for supporting and mounting parts, an LED light source 2 is disposed at an upper end inside the housing 1, the LED light source 2 is fixed at an upper end inside the housing 1, a condensing lens 3 is disposed at a lower end of the LED light source 2, the condensing lens 3 is fixedly disposed on an inner wall of the housing 1, the condensing lens 3 is used for adjusting light to enable the light emitted by the LED light source 2 to be uniformly projected onto a film 4, a film 4 is disposed at a lower end of the condensing lens 3, the film 4 is fixedly disposed on an inner wall of the housing 1, a pattern is drawn on the film 4, the number of the film 4 is several, the size and type of the pattern on each film 4 can be customized as required, the light can be projected out through the film 4, a reflector 5 is disposed at a lower end of the film 4, 5 upper ends of speculum and casing 1 are articulated, a path for change light, make the projection direction change of pattern on the film 4, 1 outside and the corresponding position of film 4 of casing are provided with rotating-structure 6, rotating-structure 6 rotates and to place different film 4 in collector lens 3 lower extreme, make this device throw out the pattern of equidimension or type not, 5 lower extremes of speculum are provided with sliding structure 7, can change the reflection angle of speculum 5 when sliding structure 7 slides, make the pattern position that this device throws out can change, rotating-structure 6 and 7 upper ends of sliding structure are provided with operation cap 8, operation cap 8 is used for operating rotating-structure 6 and sliding structure 7.

Referring to fig. 3, an imaging lens assembly 9 is disposed on one side of the reflector 5, the imaging lens assembly 9 is a first embodiment of the present disclosure, and is used to magnify an image reflected by the reflector 5, and correct aberration to make the magnified image consistent with an original image as much as possible, the imaging lens assembly 9 includes a first convex lens 10, a second convex lens 11, a concave-convex lens 12, and a third convex lens 13, the first convex lens 10, the second convex lens 11, the concave-convex lens 12, and the third convex lens 13 are disposed in sequence from a position close to the reflector 5 to a position far from the reflector 5, the imaging lens assembly 9 may also include a convex lens, a concave-convex lens, a convex lens, and a convex lens, or may be a convex lens, a concave-convex lens, a second housing 14 is disposed outside the imaging lens assembly 9, the second housing 14 is a cylindrical structure, the imaging lens group 9 is fixed in the imaging lens group, the upper end of the second shell 14 is hinged with the shell 1, the lower end of the second shell 14 is connected with the sliding structure 7, and when the sliding structure 7 drives the lower end of the second shell 14 to slide, the imaging angle of the reflector 5 and the imaging lens group 9 can rotate.

Referring to fig. 4, an imaging lens set 9 is disposed between the film 4 and the reflector 5, the second embodiment of the present invention is that the imaging lens set 9 is used to magnify the image projected by the film 4, and simultaneously correct the aberration to make the magnified image consistent with the original image as much as possible, the imaging lens set 9 includes a first convex lens 10, a second convex lens 11, a concave-convex lens 12, and a third convex lens 13, the first convex lens 10, the second convex lens 11, the concave-convex lens 12, and the third convex lens 13 are disposed in sequence from a position close to the film 4 to a position close to the reflector 5, the imaging lens set 9 may also include a convex lens, a concave-convex lens, a convex lens, or a convex lens, a concave-convex lens, and a convex lens in sequence from a position close to the reflector 5 to a position far from the reflector 5, one side of the reflector 5 is provided with a glass cover 15, the image reflected by the reflector 5 is projected out of the present invention through the glass cover 15, the upper end of the glass cover face 15 is hinged with the shell 1, the lower end of the glass cover face 15 is connected with the sliding structure 7, and when the sliding structure 7 drives the lower end of the glass cover face 15 to slide, the imaging angle of the reflector 5 and the glass cover face 15 can be rotated.

Referring to fig. 5 to 7, the rotating structure 6 includes a film support 16, a groove 17, a round-head pin 18, a spring 19, a connecting disc 20, a fixed disc 21, a hemispherical groove 22, and a rotating column 23, the film support 16 is located on the outer ring of the film 4, the film support 16 is fixedly connected with the film 4, the groove 17 is located inside one side of the film support 16, the round-head pin 18 is located in the groove 17, the spring 19 is located in a cavity formed by the groove 17 and the round-head pin 18, the connecting disc 20 is located in the middle of a ring enclosed by a plurality of film 4, the connecting disc 20 is fixedly connected with the plurality of film 4, the fixed disc 21 is located at the lower end of the connecting disc 20, the fixed disc 21 is fixed on the housing 1, the hemispherical groove 22 is located on the upper portion of the fixed disc 21, the head of the round-head pin 18 is inserted into the hemispherical groove 22, so that the rotating structure 6 is not in a relatively stable state under the action of external, the rotary column 23 passes through the connecting disc 20, and the rotary column 23 and the connecting disc 20 are fixedly arranged.

Referring to fig. 8, the sliding structure 7 includes a first sliding block 24, a horizontal sliding rail 25, a curved sliding rail 26, and a second sliding block 27, the flexible sleeve comprises a flexible strip 28, a hard sleeve 29 and a pushing column 30, wherein the first sliding block 24 is located at the lower end of the reflector 5, the first sliding block 24 is fixedly connected with the reflector 5, the horizontal sliding rail 25 is located at the lower end of the first sliding block 24, the horizontal sliding rail 25 can slide on the first sliding block 24, the bent sliding rail 26 is located on one side of the horizontal sliding rail 25, the bent sliding rail 26 is fixedly connected with the horizontal sliding rail 25, the second sliding block 27 is located at the upper end of the bent sliding rail 26, the second sliding block 27 can slide on the bent sliding rail 26, the flexible strip 28 is connected with the first sliding block 24 and the second sliding block 27, the flexible strip 28 can be bent, the hard sleeve 29 is sleeved on the flexible strip 28, the hard sleeve 29 is provided with a plurality of flexible sleeves, the pushing column 30 is connected with the first sliding block 24.

Referring to fig. 1, the second housing 14 is connected to the upper end of the second slider 27.

Referring to fig. 2, the upper end of the second slider 27 is connected to the glass cover 15.

Referring to fig. 5 and 9, a ring protrusion 31 is disposed in the middle of the rotating column 23, the rotating column 23 is connected to the housing 1 through a connecting block 32, the ring protrusion 31 fixes the rotating column 23 and the connecting block 32 in the axial direction, the rotating column 23 is rotatable in the circumferential direction, protrusions 33 are disposed on two sides of the upper end of the rotating column 23, a shallow groove 34 is disposed in the middle of the lower end of the operating cap 8, and the rotating column 23 and the protrusions 33 are inserted into the shallow groove 34.

Referring to fig. 1 and 9, the lower end of the operating cap 8 is provided with an annular deep groove 35 around the shallow groove 34, and the push rod 30 is inserted into the annular deep groove 35.

The utility model discloses a theory of operation is:

the first scheme is as follows: the LED light source 2 is used as an input light source, light penetrates through the condenser lens 3, so that the light is uniformly projected onto the film 4, the light is modulated by the film 4 to form a specific pattern and then irradiates onto the reflector 5, the light path is changed by the reflector 5, the light enters the imaging lens group 9 for imaging, the image difference is corrected by the imaging lens group 9, and finally the image is projected to the outside;

scheme II: the LED light source 2 is used as an input light source, light penetrates through the condenser lens 3, so that the light is uniformly projected onto the film 4, the light is modulated by the film 4 to form a specific pattern, then enters the imaging lens group 9 for imaging, is corrected by the imaging lens group 9 for aberration, then irradiates the reflector 5, changes the light path by the reflector 5, and finally projects an image to the outside;

the operating principle of the rotating structure 6 is as follows: the operation cap 8 is pressed down, when the rotating column 23 and the protrusions 33 are inserted into the shallow grooves 34, the operation cap 8 is rotated to drive the rotating column 23 to rotate, the rotating column 23 drives the connecting disc 20 to rotate, the round-head pin 18 is separated from the hemispherical groove 22 under the action of torsion, the spring 19 is extruded and deformed to generate elastic force, the rotating column 23 continues to rotate until the round-head pin 18 meets the next hemispherical groove 22 and enters the next hemispherical groove 22 under the action of the elastic force, and different film pieces 4 are driven to rotate into the shell 1 in the process, so that the change of the pattern type and the pattern size is completed;

the operating principle of the sliding structure 7 is as follows: when the operating cap 8 is pulled up to make the rotating column 23 and the protrusion 33 separate from the shallow groove 34, the operating cap 8 is pushed to drive the pushing column 30, and when the pushing column 30 drives the first sliding block 24 to slide on the horizontal sliding rail 25, the soft strip 28 and the hard sleeve 29 are driven to make the second sliding block 27 slide on the curved sliding rail 26, and simultaneously the first sliding block 24 drives the reflector 5 to change the angle, and the second sliding block 27 drives the second shell 14 or the glass cover surface 15 to change the angle, so that the angle and the position of the image projected by the device are changed.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. The utility model provides a be applied to periscopic projection lens of car light, includes casing (1), its characterized in that: the LED lamp is characterized in that an LED light source (2) is arranged at the upper end inside the shell (1), a condensing lens (3) is arranged at the lower end of the LED light source (2), a film (4) is arranged at the lower end of the condensing lens (3), a reflector (5) is arranged at the lower end of the film (4), a rotating structure (6) is arranged at the position, corresponding to the film (4), outside the shell (1), of the reflector (5), a sliding structure (7) is arranged at the lower end of the reflector (5), and an operation cap (8) is arranged at the upper ends of the rotating structure (6) and the sliding structure (7).

2. The periscopic projection lens applied to the car lamp as claimed in claim 1, characterized in that: speculum (5) one side is provided with imaging lens group (9), imaging lens group (9) include convex lens (10), No. two convex lens (11), meniscus (12), No. three convex lens (13), convex lens (10), No. two convex lens (11), meniscus (12), No. three convex lens (13) set gradually from the position of being close speculum (5) to the position of keeping away from speculum (5), imaging lens group (9) outside is provided with No. two shells (14), No. two shells (14) upper end and casing (1) are articulated, No. two shells (14) lower extreme and sliding structure (7) are connected.

3. The periscopic projection lens applied to the car lamp as claimed in claim 1, characterized in that: be provided with imaging lens group (9) between film (4) and speculum (5), imaging lens group (9) include convex lens (10), No. two convex lens (11), meniscus (12), No. three convex lens (13), convex lens (10), No. two convex lens (11), meniscus (12), No. three convex lens (13) set gradually from the position that is close film (4) to the position that is close speculum (5), one side of speculum (5) is provided with glass capping (15), glass capping (15) upper end and casing (1) are articulated, glass capping (15) lower extreme and sliding structure (7) are connected.

4. The periscopic projection lens applied to the car lamp as claimed in claim 1, characterized in that: rotating-structure (6) include film support (16), recess (17), button head round pin (18), spring (19), connection pad (20), fixed disk (21), hemisphere groove (22), rotation post (23), film support (16) are located the outer lane of film (4), recess (17) are located inside film support (16) one side, button head round pin (18) are located recess (17), spring (19) are located the cavity that recess (17) and button head round pin (18) formed, connection pad (20) are located in the middle of the circle that a plurality of film (4) enclose, fixed disk (21) are located connection pad (20) lower extreme, hemisphere groove (22) are located fixed disk (21) upper portion, recess (17) and hemisphere groove (22) are corresponding, rotation post (23) pass connection pad (20).

5. The periscopic projection lens applied to the car lamp as claimed in claim 1, characterized in that: sliding construction (7) include slider (24), horizontal slide rail (25), crooked slide rail (26), No. two sliders (27), soft strip (28), stereoplasm cover (29), promote post (30), slider (24) are located speculum (5) lower extreme, horizontal slide rail (25) are located slider (24) lower extreme, crooked slide rail (26) are located horizontal slide rail (25) one side, slider (27) are located crooked slide rail (26) upper end No. two, slider (24) and slider (27) are connected to soft strip (28), stereoplasm cover (29) cup joint on soft strip (28), promote post (30) and connect slider (24) No. one.

6. The periscopic projection lens applied to the car lamp as claimed in claim 5, characterized in that: the upper end of the second sliding block (27) is connected with the second shell (14).

7. The periscopic projection lens applied to the car lamp as claimed in claim 5, characterized in that: the upper end of the second sliding block (27) is connected with the glass cover surface (15).

8. The periscopic projection lens applied to the car lamp as claimed in claim 4, characterized in that: rotate post (23) middle part and be provided with annular bulge (31), rotate and be connected through connecting block (32) between post (23) and casing (1), it is provided with arch (33) to rotate post (23) upper end both sides, be provided with shallow slot (34) in the middle of operation cap (8) lower extreme, it inserts in shallow slot (34) to rotate post (23) and arch (33).

9. The periscopic projection lens applied to the car lamp as claimed in claim 5, characterized in that: the lower end of the operating cap (8) is provided with an annular deep groove (35) around the shallow groove (34), and the pushing column (30) is inserted into the annular deep groove (35).