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Camera apparatus

A technology of a camera device and a camera element, which is applied in the directions of installation, image communication, television, etc., to achieve the effect of improving the shading property and improving the ability of light leakage

Inactive Publication Date: 2007-05-16
CASIO COMPUTER CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, in the existing imaging device, the holder on which the light receiving unit is fixed is fixed to the rear end of the lens frame with bolts. Therefore, when the bolts are not sufficiently tightened, or when the lens frame and the holder cannot be tightly bonded, Light that leaks from the joint between the holder and the lens frame may enter the CCD imaging element
In addition, although it is considered to use adhesive instead of bolts to join the lens frame and holder, at this time, the light leaked from the adhesive layer formed by the adhesive may also enter the CCD imaging element.

Method used

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Experimental program
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no. 1 Embodiment

[0026] As shown in FIG. 1, the imaging device 1 of the first embodiment is an imaging device using a pan-foucus camera or the like, and has: a lens frame 2 in which an imaging lens 3 for photographing a subject is provided; and a CCD The outer package (imaging element holder) 5, in which a CCD photoelectric sensor (imaging element) 4 for photoelectric conversion of the image of the subject captured by the imaging lens 3 is installed; and the lens frame 2 and the CCD outer package 5 are joined to each other . In addition, in the following description, the subject side of the camera at the time of shooting, that is, the upper side in FIG. 1(b) is referred to as the front, and the direction away from the subject, that is, the lower side in FIG. 1(b) is referred to as the back.

[0027] The lens frame 2 has a substantially rectangular tube shape, and has a hollow portion 11 communicating in the optical axis direction, that is, in the vertical direction in FIG. 1(b). The hollow portion...

no. 2 Embodiment

[0042] Next, the second embodiment will be described.

[0043] The imaging device 10 of the second embodiment, as shown in FIG. 2, is an imaging device in which the first convex portion 6a is on the outer side and the second convex portion 7a is on the inner side of the first embodiment. The same applies to the first embodiment. Therefore, in the imaging device 10, the same reference numerals are given to the same constituent elements as the imaging device 1 of the first embodiment, and the description thereof is omitted.

[0044] At the outer edge of the end surface 6c of the flange portion 6, as in the first embodiment, a first convex portion 6a protruding toward the CCD outer package 5 side is formed by extending the peripheral portion 2a of the lens frame 2.

[0045] The front edge of the CCD outer package 5 is provided with a stepped portion 5c recessed rearward, and the height is approximately equal to the height of the first stepped portion 5b from the front where the reces...

no. 3 Embodiment

[0052] Next, a third embodiment will be described with reference to FIG. 3.

[0053] In the imaging device 21 of the third embodiment, the lens frame 2 and the imaging lens 3 arranged inside, the CCD outer package (imaging element holder) 5, and the CCD photoelectric sensor (imaging element) 4 and OLPA 15 arranged inside it Etc. are the same as the first and second embodiments. Therefore, while simplifying their illustrations, the same components as those of the imaging devices 1 and 10 of the first and second embodiments are given the same drawing numbers, and The description is omitted.

[0054] The third embodiment differs from the first and second embodiments in the structure of the lens frame joint 6 and the outer package joint (holder joint) 7. Therefore, these differences will be described in detail below.

[0055] That is, a rib (projection) 18 is formed on the end surface 6c of the lens frame joining portion 6 to extend along the periphery of the lens frame 2. The rib 18 ...

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Abstract

The present invention provided an imaging apparatus capable of shutting off a light leaked from a joining face between a holder and a lens frame to an image device. The imaging apparatus 1 is characterized in that the lens frame 2 and the imaging device holder 5 are joined together, a first projection 6a projected toward the imaging device holder 5 is formed to a lens frame joining part 6 of the lens frame 2 joined with the imaging device holder 5 so as to extend to a circumferential edge 2a of the lens frame 2, and a second projection 7a projected toward the lens frame 2 is formed to a holder joining part 7 of the imaging device holder 5 joined with the lens frame 2 so as to extend to a circumferential edge 5a of the imaging device holder 5, and the lens frame 2 and the imaging device holder 5 are joined in a way that the first and second projections are overlapped in a direction in crossing with the projected directions of the first and second projections in order to solve the task above.

Description

Technical field [0001] The invention relates to an imaging device for photographing an object. Background technique [0002] As shown in FIG. 7, a conventional imaging device 100 used in a camera (camera) or the like has: an imaging lens 30 composed of two lenses 30a and 30b mounted in a lens frame 20; and an imaging lens 30 arranged behind the imaging lens 30 A filter (optical filter) 40; and a light receiving unit 50 provided behind the filter 40. [0003] The filter 40 is a crystal filter, an infrared cut filter and other filters that match the characteristics of the CCD (charge-coupled device) imaging element 50a. The incident surface and the exit surface are arranged perpendicular to the optical axis in parallel. Consists of flat parts. In addition, the filter 40 is inserted into the filter mounting portion 20 a provided at the rear of the lens frame 20. [0004] The light receiving unit 50 is composed of a CCD image sensor 50a, an outer package 50b holding the CCD image sen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B7/02H04N5/335G03B19/02H04N5/225
Inventor 铃木幸夫高桥泰藏
Owner CASIO COMPUTER CO LTD
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