An objective lens integrating multiple functions

Abstract

The utility model provides an objective lens with multiple functions, including objective lens barrel and install in the objective lens barrel inside along the optical axis L interval arrangement several lenses, its characterized in that: the outside of objective lens barrel is equipped with the focusing barrel, installs the end ring at the end of focusing barrel, focusing barrel, objective lens barrel and end ring enclose a annular cavity, install laser range finder module and light supplement module in annular cavity, set up first through -hole and second through -hole on the end ring, laser range finder module is installed in the rear of through -hole, install light supplement module in the rear of second through -hole. When the night is darker, light is insufficient, and the light supplement module is started to light, so as not to influence the normal work of objective lens, and simple structure, reasonable layout.

Description

Technical Field

[0001] This utility model relates to an objective lens that integrates multiple functions. Background Technology

[0002] Currently, the objective lens used in traditional rifle sights is a separate component and generally does not have laser rangefinding functionality. The laser rangefinding modules in rifle sights with rangefinding capabilities are all external: these products typically have a focal length of 70mm, an aperture ratio (the ratio of the lens focal length to the effective aperture diameter) of around 2.4, and an effective aperture diameter of approximately φ30.0 (front end). The objective lens aperture is not adjustable, and the light throughput cannot be controlled according to the environment. In low light conditions at night, insufficient light affects the normal operation of the objective lens.

[0003] Therefore, there is a need to develop an objective lens that integrates multiple functions, with adjustable capabilities to adapt to environmental changes, in order to meet customer needs. Summary of the Invention

[0004] The purpose of this invention is to provide an objective lens that integrates multiple functions, solving the technical problems of existing objective lenses that cannot measure distance, cannot provide supplemental lighting when the light is insufficient at night, and cannot freely adjust the amount of light entering the lens, thus affecting the normal operation of the objective lens.

[0005] A further objective of this invention is to provide an objective lens that integrates multiple functions, thereby solving the technical problem in the prior art that objective lenses cannot adjust the light throughput according to the intensity of light.

[0006] The technical solution of this utility model is implemented as follows:

[0007] An objective lens integrating multiple functions includes an objective lens barrel and a plurality of lenses arranged at intervals along the optical axis L inside the objective lens barrel. The lens is characterized by: a focusing tube fitted outside the objective lens barrel; an end ring installed at the end of the focusing tube; the focusing tube, objective lens barrel, and end ring forming an annular cavity; a laser ranging module and a supplementary lighting module installed inside the annular cavity; a first through hole and a second through hole formed on the end ring; the laser ranging module installed behind the first through hole; and the supplementary lighting module installed behind the second through hole.

[0008] Preferably, the laser ranging module and the supplementary lighting module are located on both sides of the lens.

[0009] Preferably, the supplementary lighting module includes a supplementary LED light source or a laser light source and a supplementary lighting lens. The supplementary lighting lens is installed in the second through hole, and the supplementary LED light source or laser light source is installed behind the supplementary lighting lens.

[0010] Preferably, a first notch is provided in the middle of the objective lens tube and behind the focusing tube. An adjustable aperture device is installed at the location of the first notch. The adjustable aperture device is located between two of the lenses. The adjustment handle of the adjustable aperture device extends out from the first notch and is connected to the aperture adjustment tube fitted outside the objective lens tube. The aperture adjustment range is in the range of F22-F1.2.

[0011] Preferably, an annular boss protrudes from the middle of the objective lens barrel, and the annular boss is threaded on its outer surface. An end plate is provided at the tail end of the focusing tube, and the tail end of the focusing tube is threadedly connected to the outer surface of the objective lens barrel. The end plate is located behind the annular boss.

[0012] Preferably, the aperture adjusting cylinder includes a sleeve portion and a retaining ring protruding from the middle of the inner wall of the sleeve portion. A second notch is provided on the retaining ring, and the adjusting handle is nested in the second notch. The front end of the sleeve portion is fitted onto the outside of the focusing cylinder, and a flange cylinder is installed at the rear end of the focusing cylinder. The rear end of the sleeve portion is fitted onto the outside of the flange cylinder.

[0013] Preferably, an annular groove is provided on the front end face of the end ring, and a decorative ring is nested in the annular groove.

[0014] Preferably, the plurality of lenses include objective lens one, objective lens two, objective lens three, objective lens four, objective lens five, objective lens six and objective lens seven, objective lens one and objective lens two are cemented together, objective lens four and objective lens five are cemented together, and an adjustable aperture device is located between objective lens five and objective lens six.

[0015] Compared with the prior art, the present invention has the following technical advantages:

[0016] 1) This utility model has a focusing tube installed outside the objective lens tube, and an end ring installed at the end of the focusing tube. The focusing tube, objective lens tube and end ring form an annular cavity. A laser ranging module and a supplementary lighting module are installed inside the annular cavity. A first through hole and a second through hole are opened on the end ring. The laser ranging module is installed behind the first through hole to realize the ranging function. The supplementary lighting module is installed behind the second through hole. When it is dark at night and the light is insufficient, the supplementary lighting module is turned on to supplement the light. Therefore, it does not affect the normal operation of the objective lens. Moreover, the structure is simple and the layout is reasonable.

[0017] Other advantages of this invention will be described in detail in the embodiments section of the specification. Attached Figure Description

[0018] Figure 1 This is a perspective view of the present invention from one angle;

[0019] Figure 2 This is a perspective view of the present invention from another angle;

[0020] Figure 3 This is an exploded view of the present invention from one angle;

[0021] Figure 4 This is an exploded view of the present invention from another angle;

[0022] Figure 5 This is the front view of the present invention;

[0023] Figure 6 for Figure 5 AA section view;

[0024] Figure 7 This is a perspective view of the laser ranging module of this utility model;

[0025] Figure 8 This is a perspective view of the aperture adjustment cylinder of this utility model;

[0026] Figure 9 This is a cross-sectional view of the objective lens tube of this utility model. Detailed Implementation

[0027] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0028] It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to and integrated with the other component, or there may be an intervening component present. The terms "mounted," "one end," "the other end," and similar expressions used in this document are for illustrative purposes only.

[0029] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0030] refer to Figures 1 to 9As shown, this utility model provides an objective lens integrating multiple functions, including an objective lens barrel 1 and a plurality of lenses 2 arranged at intervals along the optical axis L inside the objective lens barrel 1. The key feature is that a focusing tube 3 is fitted outside the objective lens barrel 1, and an end ring 4 is installed at the end of the focusing tube 3. The focusing tube 3, the objective lens barrel 1, and the end ring 4 form an annular cavity 30. A laser ranging module 5 and a supplementary lighting module 6 are installed inside the annular cavity 30. A first through hole 41 and a second through hole 42 are formed on the end ring 4. The laser ranging module 5 is installed behind the first through hole 41 to realize the ranging function, and the supplementary lighting module 6 is installed behind the second through hole 42. When it is dark at night and the light is insufficient, the supplementary lighting module 6 is activated to provide supplementary lighting, thus not affecting the normal operation of the objective lens. Furthermore, the structure is simple, the layout is reasonable, and the functions are more complete.

[0031] Preferably, the laser ranging module 5 and the supplementary lighting module 6 are located on both sides of the lens 2, which is a reasonable structural layout.

[0032] Preferably, the supplementary lighting module 6 includes a supplementary lighting LED light source or laser light source 61 and a supplementary lighting lens 62. The supplementary lighting lens 62 is installed in the second through hole 42, and the supplementary lighting LED light source or laser light source 61 is installed behind the supplementary lighting lens 62. The structure is simple and the installation is convenient.

[0033] Preferably, a first notch 11 is provided in the middle of the objective lens barrel 1, behind the focusing tube 3. An adjustable aperture device 7 is installed at the location of the first notch 11, positioned between two of the lenses 2. The adjusting handle 71 of the adjustable aperture device 7 extends from the first notch 11 and connects to the aperture adjustment tube 8, which is fitted outside the objective lens barrel 1. This design is simple and easy to install. By rotating the aperture adjustment tube 8, the adjustable aperture device 7 can be activated, allowing adjustment of the aperture size according to the intensity of ambient light. The aperture adjustment range is F22-F1.2, thus adjusting the light throughput and enhancing functionality. The adjustable aperture device 7 is a general-purpose component and will not be described further here.

[0034] The aforementioned laser ranging module 5 includes a housing 50, a laser emitting tube 51, and a laser receiving tube 52. A circuit board 53 is installed on the housing 50. A laser emitting system is installed inside the laser emitting tube 51, and a laser receiving system is installed inside the laser receiving tube 52. The laser emitting system and the laser receiving system are existing technologies and will not be described further here.

[0035] Preferably, an annular boss 12 protrudes from the middle of the objective lens barrel 1, and the annular boss 12 is threaded on its outer surface. An end plate 31 is provided at the tail end of the focusing barrel 3, and the tail end of the focusing barrel 3 is threadedly connected to the outer surface of the objective lens barrel 1. The end plate 31 is located behind the annular boss 12.

[0036] Preferably, the aperture adjusting tube 8 includes a sleeve portion 81 and a retaining ring 82 protruding from the middle of the inner wall of the sleeve portion 81. A second notch 821 is provided on the retaining ring 82. The adjusting handle 71 is nested in the second notch 821. The front end of the sleeve portion 81 is fitted onto the outside of the focusing tube 3. A flange tube 9 is installed at the rear end of the objective lens tube 1. The rear end of the sleeve portion 81 is fitted onto the outside of the flange tube 9. The structure is simple and the installation and connection are convenient.

[0037] Preferably, an annular groove 43 is provided on the front end face of the end ring 4, and the decorative ring 10 is nested in the annular groove 43 for easy installation.

[0038] Preferably, the plurality of lenses 2 include objective lens 1 21, objective lens 22, objective lens 3 23, objective lens 4 24, objective lens 5 25, objective lens 6 26 and objective lens 7 27. Objective lens 1 21 and objective lens 2 22 are cemented together, objective lens 4 24 and objective lens 5 25 are cemented together, and the adjustable aperture device 7 is located between objective lens 5 25 and objective lens 6 26, with a reasonable structural layout.

[0039] The above embodiments merely illustrate specific implementations of the utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A multi-functional objective lens, comprising an objective lens barrel (1) and a plurality of lenses (2) arranged at intervals along the optical axis L and mounted inside the objective lens barrel (1), characterized in that: A focusing tube (3) is fitted outside the objective tube (1). An end ring (4) is installed at the end of the focusing tube (3). The focusing tube (3), the objective tube (1), and the end ring (4) form an annular cavity (30). A laser ranging module (5) and a supplementary light module (6) are installed inside the annular cavity (30). A first through hole (41) and a second through hole (42) are opened on the end ring (4). The laser ranging module (5) is installed behind the first through hole (41), and the supplementary light module (6) is installed behind the second through hole (42).

2. The objective lens integrating multiple functions as described in claim 1, characterized in that: The laser ranging module (5) and the supplementary lighting module (6) are located on both sides of the lens (2).

3. A multi-functional objective lens as described in claim 1 or 2, characterized in that: The supplementary lighting module (6) includes a supplementary LED light source or laser light source (61) and a supplementary lens (62). The supplementary lens (62) is installed in the second through hole (42), and the supplementary LED light source or laser light source (61) is installed behind the supplementary lens (62).

4. The objective lens integrating multiple functions as described in claim 3, characterized in that: A first notch (11) is provided in the middle of the objective lens tube (1) and behind the focusing tube (3). An adjustable aperture device (7) is installed at the position of the first notch (11). The adjustable aperture device (7) is located between two of the lenses (2). The adjustment handle (71) of the adjustable aperture device (7) extends out from the first notch (11) and is connected to the aperture adjustment tube (8) fitted outside the objective lens tube (1). The aperture adjustment range is F22-F1.

2.

5. The objective lens integrating multiple functions as described in claim 4, characterized in that: An annular boss (12) protrudes from the middle of the objective lens tube (1). The annular boss (12) is threaded on its outer surface. An end plate (31) is provided at the tail end of the focusing tube (3). The tail end of the focusing tube (3) is threaded to the outer surface of the objective lens tube (1). The end plate (31) is located behind the annular boss (12).

6. The objective lens integrating multiple functions as described in claim 5, characterized in that: The aperture adjustment tube (8) includes a sleeve part (81) and a retaining ring (82) protruding from the middle of the inner wall of the sleeve part (81). A second notch (821) is provided on the retaining ring (82). The adjustment handle (71) is nested in the second notch (821). The front end of the sleeve part (81) is fitted on the outside of the focusing tube (3). A flange tube (9) is installed at the rear end of the objective tube (1). The rear end of the sleeve part (81) is fitted on the outside of the flange tube (9).

7. The objective lens integrating multiple functions as described in claim 6, characterized in that: An annular groove (43) is provided on the front end face of the end ring (4), and a decorative ring (10) is nested in the annular groove (43).

8. The objective lens integrating multiple functions as described in claim 7, characterized in that: Several lenses (2) include objective lens one (21), objective lens two (22), objective lens three (23), objective lens four (24), objective lens five (25), objective lens six (26) and objective lens seven (27). Objective lens one (21) and objective lens two (22) are glued together, objective lens four (24) and objective lens five (25) are glued together, and an adjustable aperture device (7) is located between objective lens five (25) and objective lens six (26).

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