JP2017102365A - camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera capable of improving the degree of freedom in an installation location and reducing an influence of rain, snow, etc. at a low cost.SOLUTION: A camera 10 comprises a camera housing 11, a lens barrel 12, a lens 13, a heater 14 and a waterproof member 15. The lens barrel 12 is stored in the camera housing 11. The lens 13 is fixed inside the lens barrel 12. The heater 14 is fixed to the lens barrel 12 and heats the lens 13 via the lens barrel 12. The waterproof member 15 is disposed at a gap between the lens barrel 12 and the camera housing 11 and is in close contact with the lens barrel 12 and the camera housing 11.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a camera used outside a vehicle such as an infrared camera or outdoors.

  In a camera used outdoors or outside a vehicle, such as an infrared camera, rain or snow may adhere to the lens, making it difficult to shoot. For this reason, it is important to reduce the influence of rain, snow, and the like.

  Patent Document 1 describes that the effects of rain and snow are reduced by storing the camera in a camera case. In addition, it is described that the snow attached to the window is melted by arranging a heater around the photographing window of the camera case.

JP 2003-209723 A

  However, the camera case needs to be large enough to store the camera. For this reason, since the overall size is increased, the installation location of the camera may be limited. In addition to the camera, a camera case is required, which increases the price.

  SUMMARY OF THE INVENTION In view of such problems, the present invention has an object to provide a camera that can improve the degree of freedom of installation location and can reduce the influence of rain, snow, and the like at a low price. To do.

  The present invention relates to a camera casing, a lens barrel housed in the camera casing, a lens fixed inside the lens barrel, a lens barrel fixed to the lens via the lens barrel Provided is a camera comprising: a heater to be heated; and a waterproof member that is disposed in a gap between the lens barrel and the camera casing and is in close contact with the lens barrel and the camera casing.

  According to the camera of the present invention, the degree of freedom of the installation location can be improved and the influence of rain, snow, etc. can be reduced at a lower price than before.

It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 1st embodiment. It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 2nd embodiment. It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 3rd embodiment. It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 4th embodiment. It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 5th embodiment. It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 6th embodiment. It is a fragmentary sectional view showing typically a lens peripheral part of a camera of a 7th embodiment.

  The camera of 1st Embodiment-7th Embodiment is demonstrated using FIGS. The cameras of the first to seventh embodiments are, for example, infrared cameras that are used outdoors or outside the vehicle. Specifically, it is an in-vehicle night vision camera for detecting people and cars at night. The cameras of the first to seventh embodiments are identical in that the heater for heating the lens periphery is fixed to the lens barrel, and the positions where the heaters are fixed are different. That is, the cameras of the first to seventh embodiments are characterized by the lens periphery. Therefore, the camera according to the first to seventh embodiments will be described mainly with respect to the lens periphery.

[First Embodiment]
The camera of the first embodiment will be described with reference to FIG. FIG. 1 is a partial cross-sectional view schematically showing a lens peripheral portion of the camera of the first embodiment.

  The camera 10 includes a camera housing 11, a lens barrel 12, a lens 13, a heater 14, and a waterproof member 15.

  The camera housing 11 is made of a metal material or a resin material. An opening 11 a is formed in the camera housing 11. The opening 11a is formed so that the opening diameter increases toward the outside (upward in FIG. 1).

  The lens barrel 12 is stored in the camera housing 11. The lens barrel 12 is made of a metal material such as aluminum. Note that the vertical direction in FIG. 1 is the optical axis direction of the lens barrel 12 and the lens 13.

  An opening 12b is formed on the end surface (upper end surface in FIG. 1) 12a of the lens barrel 12 in the optical axis direction. The opening 12b is formed so that the opening diameter increases toward the outside.

  The opening 11a of the camera housing 11 and the opening 12b of the lens barrel 12 are aligned. The opening 11a and the opening 12b function as shooting windows.

  The lens 13 is fixed to the inside of the lens barrel 12, specifically, to the inner peripheral surface 12 c on the opening 12 b side of the lens barrel 12. The surface 13a (the upper surface in FIG. 1) 13a on the opening 12b side of the lens 13 has an uneven shape close to a plane. Specifically, with respect to the opening 12b, the central portion 13a1 is formed in a convex shape toward the outside, and the outer peripheral portion 13a2 positioned around the central portion 13a1 is formed in a concave shape. The lens 13 is made of a transparent material such as glass or resin.

  The heater 14 has a ring shape. The heater 14 is fixed to the end surface 12a of the lens barrel 12 so as to surround the opening 12b. By heating the lens barrel 12 with the heater 14, it is possible to remove rain or snow attached to the lens 13 or the like, or to suppress the attachment of rain or snow.

  The waterproofing member 15 has a ring shape. The waterproof member 15 is disposed concentrically with the heater 14 on the end surface 12 a on the opening 12 b side of the heater 14. The waterproofing member 15 is disposed in the gap between the lens barrel 12 and the camera housing 11. The waterproofing member 15 is in close contact with the end surface 12 a of the lens barrel 12 and the camera housing 11. As the waterproof member 15, for example, a waterproof rubber can be used.

  When rain or melted snow adhering to the lens 13 or the like enters the gap between the camera housing 11 and the lens barrel 12, the waterproof member 15 can prevent the camera housing 11 from entering the camera housing 11. it can. Therefore, the inside of the heater 14 and the camera housing 11 is protected by the waterproof member 15.

  When the camera 10 is installed such that the optical axis of the lens 13 is parallel to the ground, the rain and melted snow attached to the lens 13 and the like are removed from the central portion 13a1 of the lens 13 by the uneven shape of the lens 13. It becomes easy to flow toward the outer peripheral part 13a2.

  Since the outer peripheral portion 13a2 of the lens 13 is concave, the contact angle between the outer peripheral portion 13a2 and the lens barrel 12 is larger than that of a flat surface. The lens barrel 12 and the camera casing 11 are formed such that the opening diameters of the opening 12b and the opening 11a increase toward the outside.

  Therefore, the rain or melted snow that has moved to the outer peripheral portion 13a2 of the lens 13 is more likely to flow to the outside through the lens barrel 12 and the camera casing 11. Therefore, it is possible to easily remove rain or snow attached to the lens 13 or the like, or to easily suppress the attachment of rain or snow.

  According to the camera 10 of the first embodiment, the influence of rain or snow can be reduced with a single camera. Therefore, the degree of freedom of installation location can be improved at a lower price than in the past.

[Second Embodiment]
A camera according to the second embodiment will be described with reference to FIG. FIG. 2 is a partial cross-sectional view schematically showing the lens periphery of the camera of the second embodiment.

  The camera 20 of the second embodiment is different from the camera 10 of the first embodiment in that the heater is fixed to the outer peripheral surface of the lens barrel.

  The camera 20 includes a camera housing 21, a lens barrel 22, a lens 23, a heater 24, and a waterproof member 25.

  The camera housing 21 is made of a metal material or a resin material. An opening 21 a is formed in the camera housing 21. The opening 21a has the same shape as the opening 11a of the camera 10 (see FIG. 1) of the first embodiment.

  The lens barrel 22 is stored in the camera casing 21. The lens barrel 22 is made of a metal material such as aluminum. Note that the vertical direction in FIG. 2 is the optical axis direction of the lens barrel 22 and the lens 23.

  An opening 22b is formed on the end surface (upper end surface in FIG. 2) 22a of the lens barrel 22 in the optical axis direction. The opening 22b has the same shape as the opening 12b of the camera 10 of the first embodiment.

  The opening 22b of the lens barrel 22 and the opening 21a of the camera housing 21 are aligned. The opening 22b and the opening 21a function as a shooting window.

  Ribs 22 e are formed on the outer peripheral surface 22 d of the lens barrel 22.

  The lens 23 has the same shape as the lens 13 of the camera 10 of the first embodiment and is made of the same material. The lens 23 is fixed to the inside of the lens barrel 22, specifically, to the inner peripheral surface 22 c on the opening 22 b side of the lens barrel 22.

  The heater 24 has a strip shape. The heater 24 is fixed so as to go around the outer peripheral surface 22d in the vicinity of the end surface 22a of the lens barrel 22. By heating the lens barrel 22 with the heater 24, it is possible to remove rain or snow attached to the lens 23 or the like, or to suppress the attachment of rain or snow.

  The waterproofing member 25 has the same shape as the waterproofing member 15 of the camera 10 of the first embodiment, and is formed of the same material. The waterproofing member 25 is disposed at the same position as the waterproofing member 15. The waterproof member 25 is in close contact with the end surface 22 a of the lens barrel 22 and the camera housing 21.

  When rain or melted snow adhering to the lens 23 or the like enters the gap between the camera casing 21 and the lens barrel 22, the waterproof member 25 can prevent the camera casing 21 from entering the interior. it can. Therefore, the inside of the heater 24 and the camera housing 21 is protected by the waterproof member 25.

  The rib 22e formed on the lens barrel 22 has a positioning function for easily positioning and fixing the heater 24 to the outer peripheral surface 22d of the lens barrel 22. The rib 22e is formed to be higher than the thickness of the heater 24. The rib 22e has a function of preventing the heater 24 from coming into contact with the camera casing 21 and being damaged.

  When the camera 20 is installed so that the optical axis of the lens 23 is parallel to the ground, rain and snow attached to the lens 23 and the like can be easily removed by the heater 24 for the same reason as the camera 10 of the first embodiment. It can be removed or the adhesion of rain and snow can be easily suppressed.

  According to the camera 20 of the second embodiment, the influence of rain, snow, or the like can be reduced with a single camera. Therefore, the degree of freedom of installation location can be improved at a lower price than in the past.

  In the camera 10 of the first embodiment, a heater 14 and a waterproofing member 15 are disposed on the end surface 12 a of the lens barrel 12. On the other hand, in the camera 20 of the second embodiment, only the waterproof member 25 is arranged on the end surface 22a of the lens barrel 22. Therefore, the outer diameter R22 of the lens barrel 22 of the camera 20 of the second embodiment can be made smaller than the outer diameter R12 of the lens barrel 12 of the camera 10 of the first embodiment.

  Therefore, since the camera 20 of the second embodiment can be made smaller than the camera 10 of the first embodiment, the degree of freedom of the installation location can be further improved.

[Third Embodiment]
A camera according to a third embodiment will be described with reference to FIG. FIG. 3 is a partial cross-sectional view schematically showing the lens periphery of the camera of the third embodiment.

  The camera 30 of the third embodiment is different from the camera 20 of the second embodiment in that the heater is fixed to the outer peripheral surface at a position away from the end surface of the lens barrel.

  The camera 30 includes a camera housing 31, a lens barrel 32, a lens 33, a heater 34, and a waterproof member 35.

  The camera housing 31 is made of a metal material or a resin material. An opening 31 a is formed in the camera housing 31. The opening 31a has the same shape as the opening 21a of the camera 20 (see FIG. 2) of the second embodiment.

  The lens barrel 32 is stored in the camera casing 31. The lens barrel 32 is made of a metal material such as aluminum. Note that the vertical direction in FIG. 3 is the optical axis direction of the lens barrel 32 and the lens 33.

  An opening 32b is formed on the end surface (upper end surface in FIG. 3) 32a of the lens barrel 32 in the optical axis direction. The opening 32b has the same shape as the opening 22b of the camera 20 of the second embodiment.

  The opening 32b of the lens barrel 32 and the opening 31a of the camera housing 31 are aligned. The opening 32b and the opening 31a function as a window for photographing.

  The lens 33 has the same shape as the lens 23 of the camera 20 of the second embodiment and is made of the same material. The lens 33 is fixed to the inside of the lens barrel 32, specifically, to the inner peripheral surface 32 c on the opening 32 b side of the lens barrel 32.

  The heater 34 has the same shape as the heater 24 of the camera 20 of the second embodiment. The heater 34 is fixed at a position away from the end surface 32a of the lens barrel 32 so as to go around the outer peripheral surface 32d. By heating the lens barrel 32 with the heater 34, it is possible to remove rain or snow attached to the lens 33 or the like, or to suppress the attachment of rain or snow.

  The waterproof member 35 has the same shape as the waterproof member 25 of the camera 20 of the second embodiment, and is formed of the same material. The waterproof member 35 is disposed at the same position as the waterproof member 25. The waterproof member 35 is in close contact with the end surface 32 a of the lens barrel 32 and the camera housing 31.

  When rain or melted snow adhering to the lens 33 or the like enters the gap between the camera casing 31 and the lens barrel 32, the waterproof member 35 can prevent the camera casing 31 from entering the interior. it can. Therefore, the inside of the heater 34 and the camera casing 31 is protected by the waterproof member 35.

  When the camera 30 is installed so that the optical axis of the lens 33 is parallel to the ground, rain and snow attached to the lens 33 and the like can be easily removed by the heater 34 for the same reason as the camera 10 of the first embodiment. It can be removed or the adhesion of rain and snow can be easily suppressed.

  According to the camera 30 of the third embodiment, the influence of rain, snow, or the like can be reduced with the camera alone. Therefore, the degree of freedom of installation location can be improved at a lower price than in the past.

  In the camera 20 of the second embodiment, the heater 24 is fixed in the vicinity of the end surface 22 a of the lens barrel 22. For this reason, the lens barrel 22 is formed with ribs 22e for preventing the heater 24 from coming into contact with the camera casing 21 and being damaged.

  On the other hand, in the camera 30 of the third embodiment, the heater 34 is fixed at a position away from the end surface 32 a of the lens barrel 32. Therefore, since the heater 34 does not contact the camera housing 31, it is not necessary to form the rib 22e. Therefore, the outer diameter R32 of the lens barrel 32 of the camera 30 of the third embodiment can be made smaller than the outer diameter R22 of the lens barrel 22 of the camera 20 of the second embodiment. Therefore, since the camera 30 of the third embodiment can be made smaller than the camera 20 of the second embodiment, the degree of freedom of installation location can be further improved.

[Fourth Embodiment]
A camera according to a fourth embodiment will be described with reference to FIG. FIG. 4 is a partial cross-sectional view schematically showing the lens periphery of the camera of the fourth embodiment.

  The camera 40 of the fourth embodiment is different from the camera 10 of the first embodiment in that the heater is fixed to the other end surface of the lens barrel.

  The camera 40 includes a camera housing 41, a lens barrel 42, a lens 43, a heater 44, and a waterproofing member 45.

  The camera housing 41 is made of a metal material or a resin material. An opening 41 a is formed in the camera housing 41. The opening 41a has the same shape as the opening 11a of the camera 10 (see FIG. 1) of the first embodiment.

  The lens barrel 42 is stored in the camera casing 41. The lens barrel 42 is made of a metal material such as aluminum. Note that the vertical direction in FIG. 4 is the optical axis direction of the lens barrel 42 and the lens 43.

  An opening 42b is formed on one end face (upper end face in FIG. 4) 42a side of the lens barrel 42 in the optical axis direction. The opening 42b has the same shape as the opening 12b of the camera 10 of the first embodiment.

  The opening 42b of the lens barrel 42 and the opening 41a of the camera housing 41 are aligned. The opening 42b and the opening 41a function as a shooting window.

  The lens 43 has the same shape as the lens 13 of the camera 10 of the first embodiment and is made of the same material. The lens 43 is fixed to the inside of the lens barrel 42, specifically, to the inner peripheral surface 42 c on the opening 42 b side of the lens barrel 42.

  The heater 44 has a ring shape. The heater 44 is fixed to the other end surface (the lower end surface in FIG. 4) 42f of the lens barrel 42 in the optical axis direction. That is, the heater 44 is fixed to the end surface opposite to the end surface 12a to which the heater 14 of the camera 10 of the first embodiment is fixed. By heating the lens barrel 42 with the heater 44, it is possible to remove rain or snow attached to the lens 43 or the like, or to suppress the attachment of rain or snow.

  The waterproofing member 45 has the same shape as the waterproofing member 15 of the camera 10 of the first embodiment, and is formed of the same material. The waterproof member 45 is disposed at the same position as the waterproof member 15. The waterproof member 45 is in close contact with the end surface 42 a of the lens barrel 42 and the camera housing 41.

  When rain or melted snow adhering to the lens 43 or the like enters the gap between the camera housing 41 and the lens barrel 42, the waterproof member 45 can prevent the camera housing 41 from entering the camera housing 41. it can. Therefore, the inside of the heater 44 and the camera housing 41 is protected by the waterproof member 45.

  When the camera 40 is installed so that the optical axis of the lens 43 is parallel to the ground, the heater 44 easily removes rain and snow attached to the lens 43 and the like for the same reason as the camera 10 of the first embodiment. It can be removed or the adhesion of rain and snow can be easily suppressed.

  According to the camera 40 of the fourth embodiment, the influence of rain, snow, or the like can be reduced with the camera alone. Therefore, the degree of freedom of installation location can be improved at a lower price than in the past.

  In the camera 30 of the third embodiment, the heater 34 is fixed to the outer peripheral surface 32 d of the lens barrel 32. In design, there may be a case where a sufficient range in which the heater 34 and the camera casing 31 do not contact each other cannot be secured. In such a case, in order to prevent the heater 34 from coming into contact with the camera casing 31 and being damaged, it is necessary to form a rib similar to the rib 22e of the camera 20 of the second embodiment on the outer peripheral surface 32d. is there.

  On the other hand, in the camera 40 of the fourth embodiment, the heater 44 is fixed to the end face 42f of the lens barrel 42. Therefore, it is not necessary to form a rib on the outer peripheral surface 42d. Therefore, the degree of freedom in design can be improved.

[Fifth Embodiment]
A camera according to a fifth embodiment will be described with reference to FIG. FIG. 5 is a partial cross-sectional view schematically showing the lens periphery of the camera of the fifth embodiment. The camera of the fifth embodiment is the same as the camera 30 of the third embodiment in the position of the heater fixed to the lens barrel and the position of the waterproof member. In addition, in order to make description easy to understand, the same components as those of the camera 30 of the third embodiment are denoted by the same reference numerals.

  The camera 50 includes a camera housing 51, a lens barrel 52, a lens 33, a heater 34, and a waterproof member 55.

  Ribs 52 f are formed on the outer peripheral surface 52 d of the lens barrel 52. The rib 52f has a ring shape. The rib 52f has a positioning function for easily positioning and fixing the waterproof member 55 to the lens barrel 52. The rib 52f is formed to be higher than the width of the waterproofing member 55.

  The waterproof member 55 has a ring shape. For example, a waterproof rubber can be used as the waterproof member 55. The waterproof member 55 is in close contact with the rib 52f and the camera casing 51. When rain or melted snow adhering to the lens 33 or the like enters the gap between the camera housing 51 and the lens barrel 52, the waterproof member 54 can prevent entry into the camera 50. Accordingly, the inside of the heater 34 and the camera 50 is protected by the waterproof member 54.

[Sixth Embodiment]
The camera according to the sixth embodiment will be described with reference to FIG. FIG. 6 is a partial cross-sectional view schematically showing the lens periphery of the camera of the sixth embodiment. The camera of the sixth embodiment is the same as the camera 40 of the fourth embodiment in the position of the heater fixed to the lens barrel and the position of the waterproof member. In order to make the explanation easy to understand, the same components as those of the camera 40 of the fourth embodiment are denoted by the same reference numerals.

  The camera 60 includes a camera housing 61, a lens barrel 62, a lens 43, a heater 44, and a waterproof member 65.

  Ribs 62 f are formed on the outer peripheral surface 62 d of the lens barrel 62. The rib 62f has a ring shape. The rib 62f has a positioning function for easily positioning and fixing the waterproof member 65 to the lens barrel 62. The rib 62f is formed to be higher than the width of the waterproofing member 65.

  The waterproof member 65 has a ring shape. For example, a waterproof rubber can be used as the waterproof member 65. The waterproofing member 65 is in close contact with the rib 62f and the camera housing 61. When rain or melted snow adhering to the lens 43 or the like enters the gap between the camera housing 61 and the lens barrel 62, the waterproof member 65 can prevent the camera 60 from entering the inside. Accordingly, the inside of the heater 44 and the camera 60 is protected by the waterproof member 65.

[Seventh Embodiment]
A camera according to a seventh embodiment will be described with reference to FIG. FIG. 7 is a partial cross-sectional view schematically showing the lens periphery of the camera of the seventh embodiment. The camera of the seventh embodiment differs from the camera 40 of the fourth embodiment in the shape of the lens barrel. In order to make the explanation easy to understand, the same components as those of the camera 40 of the fourth embodiment are denoted by the same reference numerals.

  The camera 70 includes a camera housing 41, a lens barrel 72, a plurality of lenses 43, 73a, 73b, a heater 44, and a waterproofing member 45.

  In design, a plurality of lenses 43, 73a, and 73b may be used. Therefore, if the heater 44 is fixed to the end surface (the lower end surface in FIG. 7) 72b of the lens barrel 72, the distance between the heater 44 and the lens 43 becomes long. Therefore, the power supplied to the heater 44 is increased.

  Therefore, a stepped portion 72g is formed at a position near the lens 43 of the lens barrel 72. By fixing the heater 44 to the stepped portion 72g, the power supplied to the heater 44 can be made substantially the same as the power supplied to the heater 44 of the camera 40 of the fourth embodiment.

  The cameras (10, 20, 30, 40, 50, 60, 70) of the first to seventh embodiments have lens barrels (12, 22, 32, 42, 52, 62, 72) and heaters (14, 24). , 34, 44) are fixed. The lens barrel is made of a metal material. Therefore, the heat generated by the heater can be efficiently transmitted to the lens via the lens barrel. Thereby, it is possible to efficiently remove rain or snow attached to the lens or the like, or to suppress the attachment of rain or snow.

  Therefore, according to the cameras of the first to seventh embodiments, it is possible to reduce the influence of rain, snow, etc. with the camera alone. Therefore, the freedom degree of an installation place can be improved at a lower price than before.

  According to the camera of the first to seventh embodiments, the waterproof member (15, 25) prevents rain or snow attached to the lens or the like from entering the camera through the gap between the camera housing and the lens barrel. , 35, 45, 55, 65). Therefore, the inside of the heater and the camera is protected by the waterproof member.

  Compared with the cameras (30, 40, 50, 60, 70) of the third to seventh embodiments, the cameras (10, 20) of the first and second embodiments have a lens ( 13 and 23). Therefore, the heat generated by the heater can be more efficiently transmitted to the lens. Therefore, power consumption for heating the heater can be suppressed.

  The camera (20, 30, 40) of the second to fourth embodiments has an end face (22a) on which the waterproofing members (25, 35, 45) are arranged as compared with the camera (10) of the first embodiment. , 32a, 42a) heaters (24, 34, 44) are arranged at different positions. Therefore, the outer diameter (R22, R32, R42) of the lens barrel (22, 32, 42) can be reduced. Thereby, the freedom degree of an installation place can further be improved.

  In design, the opening diameters of the camera housing and the opening of the lens barrel may be increased. In such a case, in the cameras (30, 40) of the third and fourth embodiments, it is difficult to secure a space for arranging the waterproofing members (35, 45) on the end surfaces (32a, 42a). There is. Therefore, as in the cameras (50, 60) of the fifth and sixth embodiments, ribs (52f, 62f) are formed on the outer peripheral surfaces (52d, 62d) of the lens barrel (52, 62), and the ribs are waterproof. The above-described problems can be solved by positioning the members for use (55, 65).

  Since the cameras 10, 20, 30, 40, 50, 60, and 70 according to the first to seventh embodiments have features, respectively, it is possible to select an optimal form according to the design specifications of the camera.

  The embodiment according to the present invention is not limited to the above-described configuration, and various modifications can be made without departing from the gist of the present invention.

  For example, the various shapes of the lens barrel, the lens, the camera housing, the heater, and the waterproof member are not limited to the various shapes of the first to fourth embodiments, and are appropriately designed according to the design specifications. Is possible.

10 (20, 30, 40, 50, 60, 70) Camera 11 (21, 31, 41, 51, 61) Camera housing 12 (22, 32, 42, 52, 62, 72) Lens barrel 13 (23 , 33, 43) Lens 14 (24, 34, 44) Heater 15 (25, 35, 45, 55, 65) Waterproof member

Claims (3)

A camera housing;
A lens barrel stored in the camera housing;
A lens fixed inside the lens barrel;
A heater fixed to the lens barrel and heating the lens through the lens barrel;
A waterproof member disposed in a gap between the lens barrel and the camera casing, and in close contact with the lens barrel and the camera casing;
A camera comprising:   The camera according to claim 1, wherein the heater is fixed to an end surface or an outer peripheral surface of the lens barrel in the optical axis direction.   The camera according to claim 1, wherein the lens has a central portion formed in a convex shape and a periphery of the central portion formed in a concave shape.

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