CN201681197U

CN201681197U - Lens protecting mirror

Info

Publication number: CN201681197U
Application number: CN2010201989687U
Authority: CN
Inventors: 郑明忠
Original assignee: UNITED ORIENTAL OPTOELECTRONIC CO Ltd
Current assignee: UNITED ORIENTAL OPTOELECTRONIC CO Ltd
Priority date: 2010-05-21
Filing date: 2010-05-21
Publication date: 2010-12-22
Anticipated expiration: 2020-05-21

Abstract

The utility model discloses a lens protecting mirror, which comprises a casing, a lens and a positioning part, wherein the casing is provided with a through hole, a first opening and a second opening in surrounding manner; one end of the through hole is communicated with the first opening while the other end thereof is communicated with the second opening; the through hole defines an inner wall on the casing; a rib is protruded on one side of the case and in a position where the inner wall is close to the first opening; a ring-shaped groove is formed in a sinking manner on one side of the case and in a position wherein the inner wall is close to the second opening; and the length of the inner wall between the rib and the groove is defined as the length of the inner wall; the lens is accommodated in the through hole; the thickness of the lens is larger than the length of the inner wall; one side of the lens is clamped on the rib in a butting manner; a ring-shaped notch is formed at the periphery of the other side of the lens in a sinking manner and communicated with the groove; the positioning part is accommodated between the groove and the notch; the positioning part is clamped on the casing in a butting manner; and the lens is clamped between the positioning part and the rib in a butting manner. The utility model has better structural strength, and avoids the occurrence of breakage or damage.

Description

The lens protection mirror

Technical field

The utility model system refers to be installed in other camera lenses in order to protect other camera lenses relevant for a kind of camera lens especially.

Background technology

The known device that is used for len can be described with reference to TaiWan, China TWI310874 patent; can install lid additional in camera lens the place ahead; with len; when taking; also can install a protective glass in camera lens the place ahead; be provided with lens in this protective glass; can be when taking len; wherein; for avoiding protective glass to cover camera lens and camera is found a view, the producer's multipole power when making protective glass reduces the thickness of protective glass, but the thickness of protective glass reduced the lens thickness that will make in the protective glass with reduction; make the lens arrangement strength degradation, and when using protective glass, produce lens cracked problem easily.

Summary of the invention

The purpose of this utility model provides a kind of lens protection mirror, can have preferable structural strength, and situation cracked or that damage takes place when decreasing in use.

For achieving the above object, the utility model is taked following design proposal:

A kind of lens protection mirror comprises:

One housing, enclose structure one through hole, one first opening and one second opening are arranged, this through hole one end is connected with this first opening, the other end is connected with this second opening, this through hole defines an inwall in this housing, this housing is convexly equipped with a fin in this inwall near a side of first opening, and this housing near the recessed groove that forms an annular of a side of second opening, is defined as the length of this inwall in this inwall with the length of this inwall between fin and groove; One lens are located in this through hole, and the thickness of these lens is greater than the length of this inwall, and this lens one side fastens in this fin, are arranged with the short slot of an annular in this lens opposite side periphery, make this short slot be connected with groove; Positioning piece is located between this groove and this short slot, and this keeper fastens in this housing, makes this lens card be butted between this keeper and this fin.

The utility model has the advantages that: this lens protection mirror can supply thickness of shell is reduced, and installs the thicker lens of thickness simultaneously, avoids lens to cross and approaches and make structural strength to descend, and makes lens have certain structure intensity, reduces the generation of breaking or damaging.

Description of drawings

Fig. 1 is a stereographic map of the present utility model.

Fig. 2 is a three-dimensional exploded view of the present utility model.

Fig. 2 A is the partial enlarged drawing of the utility model lens.

Fig. 3 is a partial sectional view of the present utility model.

Fig. 3 A is the partial enlarged drawing of Fig. 3.

Below in conjunction with drawings and the specific embodiments the utility model is described in further details:

Embodiment

Below only with embodiment the enforcement aspect that the utility model is possible being described, so is not the category in order to the desire protection of restriction the utility model institute, close chat earlier bright.

Please refer to Fig. 1, the utility model provides a kind of lens protection mirror, is for being assembled in camera lens or other camera lens front ends, with the utility model len, avoiding camera lens directly to be subjected to foreign object strike, splash or wearing and tearing.

Please refer to Fig. 2 and Fig. 3, the utility model includes a housing 1, lens 2 and positioning piece 3.

This housing 1 encloses structure a through hole, one first opening 11 and one second opening 12, the preferably, can be made as this housing 1 circular, make these through hole two ends be connected with this first opening 11 and this second opening 12 respectively, please refer to Fig. 3 and Fig. 3 A, define an inwall 13 with this through hole in housing 1, this housing 1 is convexly equipped with a fin 14 in inwall 13 near a side of first opening 11, this housing 1 is opened 12 the recessed groove 15 that forms of a side in inwall 13 near second, this groove 15 is defined as in addition the length of this inwall ringwise in the length of 15 of fin 14 and grooves with inwall 13.This housing 1 can extend to form a fixed part 16 from first opening 11, can be provided with screw thread in fixed part 16 inner peripheral surfaces and housing 1 outer peripheral face, use for this housing 1 being assembled in camera lens, yet, in addition with other fasteners or stationary installation with this housing person of being fixed in the camera lens, also not having can not.

These lens 2 are the thicker lens of a thickness, and be installed in this housing 1, more particularly, these lens 2 are located in this through hole, the thickness of these lens is greater than the length of this inwall 13, these lens 2 can adopt planar lens, also can adopt the lens of other kinds such as convex lens, concavees lens, and wherein the thickness of these lens means the thickness in lens thickness.Please refer to Fig. 2 A, in these lens 2 wherein a side be concaved with a short slot 21, this short slot is periphery in these lens 2 peripheries, wherein this short slot 21 can be the shape of cutting sth. askew, make this short slot 21 form a scalene cone in these lens 2 one sides, in other embodiment, this short slot also can have quadrilateral or circle and wait other section shapes.Please refer to Fig. 3 A, these lens 2 one sides are resisted against this fin 14, then are provided with short slot 21 in this lens opposite side, make this short slot 21 be connected with groove 15.

This keeper 3 is located in 21 of groove 15 and short slots, this keeper 3 is fastened in this housing 1, and these lens 2 are fastened between keeper 2 and fin 14, makes this lens 2 stationkeeping.Wherein this keeper 3 can be C shape ring, and can have a round section, makes this keeper have the advantages that to be easy to make, and in other embodiment, also this keeper cross sectional shape can be changed and is made as quadrilateral or other shapes.

By this; the utility model can install and fix the thicker lens of thickness in a housing; to use as the lens protection mirror; utilize the thickness that improves lens and the structural strength that improves lens; can avoid because of after the lens protection mirror constantly improves attenuation; and make lens too thin, and produce the situation of lens arrangement undercapacity, be the proof that has progressive effect in fact.

Claims

1. lens protection mirror is characterized in that comprising:

One housing, enclose structure one through hole, one first opening and one second opening are arranged, this through hole one end is connected with this first opening, the other end is connected with this second opening, this through hole defines an inwall in this housing, this housing is convexly equipped with a fin in this inwall near a side of first opening, and this housing near the recessed groove that forms an annular of a side of second opening, is defined as the length of this inwall in this inwall with the length of this inwall between fin and groove;

One lens are located in this through hole, and the thickness of these lens is greater than the length of this inwall, and this lens one side fastens in this fin, are arranged with the short slot of an annular in this lens opposite side periphery, make this short slot be connected with groove;

Positioning piece is located between this groove and this short slot, and this keeper fastens in this housing, makes this lens card be butted between this keeper and this fin.

2. lens protection mirror according to claim 1 is characterized in that: the cross sectional shape of this keeper is for circular.

3. lens protection mirror according to claim 1 is characterized in that: this short slot forms a scalene cone in this lens one side.