CN102213894A

CN102213894A - Photographing device

Info

Publication number: CN102213894A
Application number: CN2010101437900A
Authority: CN
Inventors: 谢明志; 李宗熙
Original assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Hongfujin Precision Industry Shenzhen Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2010-04-09
Filing date: 2010-04-09
Publication date: 2011-10-12

Abstract

The invention discloses a photographing device, which comprises a front cover provided with an annular accommodating groove, and an extension ring, wherein N pairs of support arms are distributed uniformly on the inner wall of the accommodating groove; N is an integer which is more than or equal to 2; every two pairs of support arms have unequal heights; two support arms in every pair of support arms are arranged symmetrically relative to a central shaft of the accommodating groove; the outer side wall of the extension ring is provided with N-1 pairs of grooves which are parallel to the opening direction of the extension ring; the position arrangement of the N-1 pairs of grooves corresponds to the position arrangement of N-1 pairs of support arms in the N pairs of support arms; at least one pair of the N pairs of support arms is clamped into one pair of grooves of the extension ring; one end of the extension ring is pressed against one pair of the support arms in the N pairs of support arms; and the depth of the extension ring extending into the accommodating groove of the front cover is adjusted by rotating the extension ring and further adjusting one end of the extension ring which is pressed against any pair of support arms in the N pairs of support arms. In the photographing device, one extension ring can be shared when lenses and image sensors of different specifications are used.

Description

Camera

Technical field

The present invention relates to a kind of camera.

Background technology

The camera lens that the camera front end is taken has two kinds of different specifications of C-mount and CS-mount, the camera lens of described two kinds of specifications is equipped with one inch long tap, difference is: when the CS-mount camera lens is installed on camera, imageing sensor should be 12.5 millimeters to the distance between the camera lens (be back focal length from), when the C-mount camera lens was installed on camera, imageing sensor should be 17.5 millimeters to the distance between the camera lens.

Since C-mount and the corresponding different back focal length of CS-mount camera lens from, generally be that front end at camera adds corresponding extended loop to adjust camera lens to the distance between the imageing sensor, make back focal length from keeping correct, and imageing sensor also has two kinds of different specifications of CMOS (Complementary Metal Oxide Semiconductor) and CCD (Charge Coupled Device), wherein ccd image sensor is thicker than cmos image sensor, so the thickness that also will consider imageing sensor in design to back focal length from influence, therefore, when the camera of the camera lens of making the use different size or imageing sensor, need to prepare different extended loops very inconvenience at the different size of camera lens and imageing sensor.

Summary of the invention

In view of above content, be necessary to provide a kind of camera, can share an extended loop when camera lens of described camera use different size or imageing sensor.

A kind of camera, comprise that one is provided with the protecgulum and an extended loop of the storage tank of an annular, the madial wall of described storage tank is evenly distributed with N to sway brace, N is the integer more than or equal to 2, not contour between per two pairs of sway braces, and two sway braces in the every pair of sway brace are symmetrical arranged with respect to the central shaft of storage tank, the lateral wall of described extended loop is provided with the groove of N-1 to the opening direction that is parallel to described extended loop, described N-1 arranges to the position of groove and arranges corresponding with described N to the right position of the N-1 in the sway brace, described N is at least one pair of snaps in a pair of groove of described extended loop in the sway brace, and an end of described extended loop is against described N on a pair of in the sway brace, adjusts an end of described extended loop and is against described N to any a pair of the going up to adjust the distance that described extended loop enters the storage tank of described protecgulum in the sway brace by rotating described extended loop.

Camera of the present invention is according to the specification of the camera lens that will install and imageing sensor, be against not contour N to a pair of the going up in the sway brace by an end of adjusting described extended loop to adjust the distance that described extended loop enters the storage tank of described protecgulum, the back focal length that makes described camera from the camera lens and the imageing sensor coupling that will be assembled on the camera, thereby also need not to replace described extended loop when making described camera use the camera lens of different size or imageing sensor.

Description of drawings

The invention will be further described in conjunction with embodiment with reference to the accompanying drawings.

Fig. 1 is the exploded view of the better embodiment of camera of the present invention.

Fig. 2 is the front elevation of the protecgulum of Fig. 1.

Fig. 3 is the stereographic map of Fig. 2.

Fig. 4 is the assembly drawing of Fig. 1.

Fig. 5 is the view of the other direction of Fig. 4.

The main element symbol description

Protecgulum 10

Storage tank 12

Bulge loop 122

Through hole 1222

Diapire 124

Hole 126

Screw 13

Extended loop 20

Groove 22

Primary importance 24

Packing ring 26

Sign 262

Screw hole 27

Screw thread 28

First pair of sway brace 141

Second pair of sway brace 142

The 3rd pair of sway brace 143

The 4th pair of sway brace 144

The 5th pair of sway brace 145

Embodiment

Please refer to Fig. 1 to Fig. 3, the better embodiment of camera of the present invention comprises a protecgulum 10 and an extended loop 20, and other of described camera is prior art partly, so do not specify.

Described protecgulum 10 is provided with the storage tank 12 of an annular, and the madial wall of described storage tank 12 extends outward a bulge loop 122 perpendicular to the surface of described protecgulum 10.Evenly be placed with first pair to the 5th pair totally five pairs of sway braces 141,142,143,144 and 145 on the madial wall of described storage tank 12, two sway braces in the every pair of sway brace are symmetrical arranged with respect to the central shaft of described storage tank 12.The position of described bulge loop 122 between the 3rd pair of sway brace 143 and the 4th pair of sway brace 144 is provided with the axisymmetric through hole 1222 in a pair of center with respect to described storage tank 12.Each sway brace is strip, and the width of each sway brace 141-145 equates and perpendicular to the diapire 124 of described storage tank 12.Described first pair of sway brace 141 is higher than second pair to the 5th pair sway brace and the height and the deep equality of described storage tank 12.Described second is lower than other any sway brace or does not establish sway brace on to the position of brace being provided with second brace 142.Described the 3rd pair of sway brace 143 is higher than described second sway brace 142 (as high 5 millimeters), described the 4th pair of sway brace 144 be higher than described second pair of sway brace 142 and and the difference in height of described second pair of supporting walls be difference in height (as 2 millimeters) between ccd image sensor and the cmos image sensor, the difference in height of described the 5th pair of sway brace 145 and described the 3rd pair of supporting walls also is the difference in height (as 2 millimeters) between ccd image sensor and the cmos image sensor, and described the 5th pair of sway brace 145 is higher than described the 4th pair of sway brace 144 (as high 5 millimeters).Be respectively equipped with sign " CS ", " C ", " CS " near in described second to the 4th pair of sway brace 142,143,144 and 145 of the diapire 124 of described storage tank 12 and reach " C ", also near described second pair of sway brace 142, be provided with sign " CMOS ", also near described sway brace 142, be provided with sign " CCD ".Diapire 124 central authorities of described storage tank 12 also are provided with a hole 126, and described hole 126 is used to allow light by the imageing sensor (not shown) of described camera external irradiation to the opposite side of being located at described hole 126.

The external diameter of described extended loop 20 is slightly less than the internal diameter of described storage tank 12.The madial wall of described extended loop 20 is provided with the screw thread 28 that is used for fixing a camera lens (not shown).The lateral wall of described extended loop 20 is provided with four pairs of grooves 22 that bar shaped is wide, and the width of groove 22 is slightly larger than the width of each sway brace.The madial wall of described extended loop 20 also extends outward the packing ring 26 of an annular perpendicular to the surface of described protecgulum 10, described packing ring 26 intersects vertically with each groove 22.Described packing ring 26 also is provided with the sign 262 of one " ▲ " shape, described sign 262 is pointed to a primary importance 24 of the lateral wall of described extended loop 20, and described primary importance 24, one with described primary importance with respect to the axisymmetric second place in the center of described extended loop 20 and described evenly arranged and arrange corresponding with the position of described five couples of sway brace 141-145 around the lateral wall of described extended loop 20 in groove 22 residing each positions.Two grooves in the every pair of groove 22 are symmetrical arranged with respect to the central shaft of described extended loop 20, the through hole 1222 of also corresponding described protecgulum 10 is provided with a plurality of screw holes 27 on the described extended loop 20, to be respectively applied for when described extended loop 20 is in different relative positions with described protecgulum 10 described extended loop 20 is fastened on the described protecgulum 10.

Please refer to Fig. 4 and Fig. 5, use the camera lens of cmos image sensor and use C-mount specification when described camera, when assembling described protecgulum 10 and extended loop 20, sign on the described packing ring 26 262 is aimed at the sign " C " of close described sign " CMOS ", finely tune the relative position between described extended loop 20 and the described storage tank 12 again, groove 22 on the lateral wall of described extended loop 20 is just aimed at one by one with described first to the 5th couple of sway brace 141-145, make described groove 22 be inserted in described first pair of sway brace 141 and the 5th pair of sway brace 145 then, be against on described the 3rd pair of sway brace 143 until described sign 262 primary importances 24 pointed, pass the through hole 1222 on the bulge loop 122 of described protecgulum 10 by screw 13 again and lock screw hole 27 on the described extended loop 20, so that described extended loop 20 is fixed in the described storage tank 12, at last described camera lens is fixed on the described extended loop 20 by the screw thread 28 on the described extended loop 20, packing ring 26 until described extended loop 20 props up described camera lens, at this moment, the back focal length of described camera is from just mating with described camera lens.

To use the camera lens of cmos image sensor and use CS-mount specification when described camera, when assembling described protecgulum 10 and extended loop 20, sign on the described packing ring 26 262 is aimed at the sign " CS " of close described sign " CMOS ", and then carry out follow-up Assembly Action same as described above.

If described camera will use ccd image sensor and use the camera lens of C-mount specification, when then assembling described protecgulum 10 and extended loop 20, sign on the described packing ring 26 262 is aimed at the sign " C " of close described sign " CCD ", and then carry out follow-up Assembly Action same as described above.

If described camera will use ccd image sensor and use the camera lens of CS-mount specification, when then assembling described protecgulum 10 and extended loop 20, sign on the described packing ring 26 262 is aimed at the sign " CS " of close described sign " CCD ", and then carry out follow-up Assembly Action same as described above.

In other embodiments, quantity, height and the arrangement mode of described first to the 5th couple of sway brace 141-145 can be decided described sign CS according to back Jiao's of the required adjustment of described camera concrete condition ", " C ", " CS ", " C ", " CMOS ", " CCD " reach " ▲ " also can be as required or hobby and changing.Described first to the 5th couple of sway brace 141-145 also can be the projection that is suspended on the madial wall of described storage tank 12.Described screw hole 27 can save and make described through hole 1222 into screw, so can lock described two screws and be against the lateral wall of described extended loop 20 by two-screw 13, so that described extended loop 20 is fixed in described storage tank 12.

Camera of the present invention is according to the specification of the camera lens that will install and imageing sensor, the primary importance 24 by adjusting described extended loop 20 and the second place are against on first to the 5th couple of sway brace 141-145 with differing heights adjusts the distance that described extended loop 20 enters the storage tank 12 of described protecgulum 10, the back focal length that makes described camera is from camera lens and the imageing sensor coupling that will use with described camera, thereby also need not to replace described extended loop 20 when making described camera use the camera lens of different size or imageing sensor.

Claims

1. camera, comprise that one is provided with the protecgulum and an extended loop of the storage tank of an annular, the madial wall of described storage tank is evenly distributed with N to sway brace, N is the integer more than or equal to 2, not contour between per two pairs of sway braces, and two sway braces in the every pair of sway brace are symmetrical arranged with respect to the central shaft of storage tank, the lateral wall of described extended loop is provided with the groove of N-1 to the opening direction that is parallel to described extended loop, described N-1 arranges to the position of groove and arranges corresponding with described N to the right position of the N-1 in the sway brace, described N is at least one pair of snaps in a pair of groove of described extended loop in the sway brace, and an end of described extended loop is against described N on a pair of in the sway brace, adjusts an end of described extended loop and is against described N to any a pair of the going up to adjust the distance that described extended loop enters the storage tank of described protecgulum in the sway brace by rotating described extended loop.

2. camera as claimed in claim 1, it is characterized in that: the external diameter of described extended loop is slightly less than described storage tank internal diameter, described sway brace is strip and perpendicular to the diapire of described storage tank, and the shape of described groove and width corresponding with described sway brace is slightly larger than the width of described sway brace.

3. camera as claimed in claim 1, it is characterized in that: the madial wall of described storage tank extends outward a bulge loop perpendicular to the surface of described protecgulum, the position of described bulge loop between two pairs of adjacent sway braces is provided with a pair of through hole, and the corresponding described two through hole of described extended loop is provided with a plurality of screws and to be respectively applied for when described extended loop is in different relative positions with described protecgulum described extended loop is fastened on the described protecgulum.

4. camera as claimed in claim 1, it is characterized in that: the diapire of described storage tank is provided with a plurality of different first signs to the N-1 of sway brace to neighbouring in described N, described extended loop is established a packing ring perpendicular to described lateral wall to evagination, described packing ring is provided with one second sign, described second sign is pointed to a primary importance of the lateral wall of described extended loop, and described primary importance, one evenly arranges around the lateral wall of described extended loop to residing each position of groove with respect to the axisymmetric second place in the center of described storage tank and described N-1 with described primary importance, by making one in described first sign of the described second sign aligning to select described N to a pair of second sign position pointed that is against described extended loop in the sway brace, to adjust the distance that described extended loop enters the storage tank of described protecgulum.

5. camera as claimed in claim 1, it is characterized in that: described sway brace comprises first to the 5th pair of sway brace, described first pair of sway brace is higher than second pair to the 5th pair sway brace, described second pair of sway brace is lower than other any pair of support arms, and described the 5th pair of sway brace is higher than described the 3rd pair and the 4th pair of sway brace.

6. camera as claimed in claim 5 is characterized in that: the deep equality of first pair of sway brace height and described storage tank.

7. camera as claimed in claim 5, it is characterized in that: the difference in height between described the 4th pair of sway brace and the described second pair of supporting walls is two kinds of differences in height between the imageing sensor, and the difference in height between described the 5th pair of sway brace and described the 3rd pair of supporting walls is the difference in height between described two kinds of imageing sensors.