JP2001228531A - Camera - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a camera that the degree of freedom of the appearance design of an optical member arranged at an armor is improved. SOLUTION: Relating to the camera whose armor cover is composed of the armor cover member 4 of the camera and the optical member 1 constituting a window part for range-finding and photometry or the like arranged on the front surface of the armor cover member 4, the optical member 1 is formed of an acrylic resin having a spectroscopic characteristic to transmit an infrared ray and to shut off visible light, and transfer printing by in-mold molding is applied to at least a part of the optical member.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a camera in which an optical member is provided on an outer cover member constituting an outer cover of a camera body.

[0002]

2. Description of the Related Art Conventionally, in a camera in which an optical member is disposed on the front of a camera body, as disclosed in Japanese Utility Model Application Laid-Open No. 58-98616, distance measurement of a subject is performed by reflecting light having a wavelength outside visible light. There has been proposed an autofocus camera which uses a protective member of an optical system through which light having a wavelength outside visible light passes as it is.

FIG. 5 shows an example of a camera in which a protective member of an optical system through which wavelengths outside visible light of the above-mentioned camera pass is disposed on the front surface.

In FIG. 1, reference numeral 10 denotes a front window as an optical member, and 10a denotes a visible light cut window. The front window 10 has a known spectral characteristic of transmitting infrared light and blocking visible light. Since the visible light cut window 10a is made of an acrylic material having an integral structure, the visible light cut window 10a is hardly distinguished from other portions in appearance. The visible light cut window 10a has an IR for camera auto focus (hereinafter referred to as AF).
It includes an ED light emitting and receiving window and a remote control receiving window of the camera.

[0005] Also, 10b, 10c and 10d are front windows 1 respectively.
0b is a hole formed at 0, and 10b is an automatic exposure (hereinafter AE)
Hole for the window, 10c is the hole for the red-eye lamp emission window,
10d is a hole for a finder. In addition, 1
Reference numerals 0e and 10f denote portions printed on the front window 10 by a well-known tampo printing or silk printing method.

Reference numeral 11 denotes an AE window which is a transparent optical member, 12 denotes a red-eye lamp emission window which is also a transparent optical member,
The holes are respectively integrated into the holes 10b and 10c.

Next, a description will be given of the camera body side. Reference numeral 13 denotes an exterior cover member, a hole is provided at a position corresponding to the front window 10, and 13a is an IRED light emitting hole for AF,
13b is an IRED light receiving hole for AF, 13c is a remote control receiving hole, 13d is an AE light receiving hole, and 13e is a hole for a red-eye lamp.

Next, 14 is a finder objective lens, 15 is an AF light projecting lens, 16 is an AF light receiving lens, 1
Reference numeral 7 denotes a red-eye lamp, and reference numeral 18 denotes a lens barrel having a photographing optical system. Although not shown, a remote control receiving sensor is provided inside 13c, and an AE light receiving sensor is provided inside 13d. Finally, 13f is a hole for avoiding interference with internal parts of the camera.

As described above, the front window 10 as an optical member is incorporated in the outer cover member 13 together with the AE window 11 and the red-eye lamp emission window 12. Therefore, the front window 10
Is the appearance of the camera as it is.

A camera disclosed in Japanese Patent Application Laid-Open No. 10-282548 is a camera having an outer cover member formed with a hole for avoiding interference with internal parts of the camera. The optical member is provided adjacent to the optical member and has a light-shielding property, and the optical member includes an AF light emitting / receiving section, that is, has a visible light cut characteristic.

In recent years, a transfer foil printed in advance has been arranged on a fixed mold surface of a molding die forming the front side of an optical member, and a transparent acrylic resin has been formed in a molding space formed by the fixed mold and the movable mold. 2. Description of the Related Art There is known an in-mold molding method in which a thermoplastic resin material such as a system resin is injected to form an optical exterior member and simultaneously form the printing.

Further, it is also possible to apply a printing having a visible light cut characteristic on a transfer foil to be printed in advance, and in this case, a visible light cut characteristic is formed on the surface of an optical component molded with a transparent acrylic resin by in-mold molding. An optical member having the window printed at the same time is configured.

FIG. 6 shows an example of a camera having an optical member formed by in-mold molding.

In FIG. 6, reference numeral 20 denotes a front window, which is an optical member, and is formed of a transparent acrylic resin. In the figure, 20a is an IRED light emission window for AF, and 20b is A
An IRED light receiving window for F and a remote control receiving window 20c are printed by in-mold molding and have a visible light cut characteristic.

Reference numerals 20d, 20e, and 20f denote mirror-shaped transparent windows which are non-printed portions depending on in-mold molding, and are a finder objective window, an AE light receiving window, and a red-eye lamp light emitting window, respectively.

Reference numerals 20g, 20h and 20I are parts printed by in-mold molding, and can be constituted by multiple colors. Next, reference numeral 21 on the camera body side is a front cover of an exterior cover member, and has a configuration in which the front window 20 is incorporated.

Therefore, the AE window member and the red-eye lamp emission window member described with reference to FIG. 5 are unnecessary in the conventional example shown in FIG. 6, and it can be said that the camera has an optical member having a small number of component parts.

[0018]

However, the above conventional example has the following problems. First of all,
No. 98616 and a camera in which the optical member shown in FIG. 5 is disposed on the front side and the appearance is kept as it is, the front window which is an optical member transmits infrared light and blocks visible light. Since it is formed of an acrylic material having characteristics, it becomes substantially black as a result.

Therefore, even if tampon printing or the like is performed later, since black is dominant as a whole, there is a problem that the degree of freedom in design is limited.

Also, there is conventionally known light shielding of a hole of an outer cover (a hole 13f for avoiding interference with internal parts of the camera shown in FIG. 5) for avoiding interference with internal parts due to the thinning of the camera. An acrylic material having a spectral characteristic of transmitting infrared light and blocking visible light cannot prevent light leakage into the camera through a hole for avoiding interference completely.

A camera disclosed in Japanese Patent Application Laid-Open No. 10-282548 is a camera having an exterior cover member having a hole for avoiding interference with internal parts of the camera. A light-shielding exterior member covering the hole is provided adjacent to the optical member having the AF light emitting and receiving unit, and light leakage from the interference-prevention hole into the camera through the light-shielding exterior member is provided. However, since the exterior member and the optical member having light-shielding properties are separate parts,
Although there is a problem that there is no sense of unity even if they are arranged adjacently, and there is a problem that the configuration of the mating part is difficult. Because it is limited by the interference position with the exterior cover member, it is difficult to perform a free design.

Next, in the case of the camera having the optical exterior member formed by the in-mold molding shown in FIG. 6, a window having a visible light cut characteristic is formed by printing by the in-mold molding, and Depending on the in-mold molding, a transparent window part with a mirror surface, which is a non-printed part, is formed,
And because the printed portion is formed by in-mold molding, regarding the above design freedom,
Although it can be said that the camera has been greatly expanded, in the case of a camera having an exterior cover member with holes for avoiding interference, the reliability of light leakage from the holes for avoiding interference to the inside of the camera depends on the print color of the display unit. Since there is a problem of fading, and the omission due to pinholes in printing is not complete, there is a further concern about the reliability of the light leakage.

As shown in FIG. 7, the printing of the windows (20a, 20b, 20c) having the visible light cutoff characteristics and the overlap of the other printing portions (20i) are necessarily required.
In addition, since eccentricity due to printing misregistration occurs, there is a problem that the overlapped portion is not good in appearance, and consequently design restrictions such as making the overlapped portion in a groove shape to make it inconspicuous occur.

Accordingly, it is an object of a first invention according to the present application to improve the degree of freedom in the appearance design of an optical member disposed on the exterior of a camera, and to shield light from leaking into the camera through the optical member. The aim is to increase the reliability of the.

A second object of the present invention is to provide a camera having an exterior cover member in which a hole for avoiding interference with the internal parts of the camera is provided. The object of the present invention is to further enhance the reliability of light shielding against light leakage.

[0026]

According to a first aspect of the present invention, there is provided a camera having an exterior cover including an exterior cover member of the camera and an optical member disposed on the exterior cover member. The optical member is formed of a resin having a spectral characteristic of transmitting infrared light and blocking visible light, and at least a part of the optical member is subjected to transfer printing by in-mold molding.

According to the above configuration, since the optical member is made of, for example, an acrylic resin having a spectral characteristic of blocking visible light, the optical member has higher reliability against light entering (light leakage) into the camera than a transparent acrylic resin. Will be higher. Further, since the transfer printing is performed on the optical member by in-mold molding, the degree of freedom in design is remarkably improved, and the appearance defect due to the printing misalignment at the boundary between the transferred and unprinted portions is eliminated. A second invention is the first invention,
The exterior cover member is formed with a hole for avoiding interference with an internal component of a camera, and the optical member is characterized in that the transfer-printed portion covers the interference avoidance hole.

According to the above configuration, since the optical member is made of an acrylic resin having a spectral characteristic of blocking visible light, the optical member has high reliability against light entering into the camera (light leakage). Furthermore, since the transferred and printed portion covers the hole for avoiding interference of the exterior cover, the reliability against light leakage is remarkably improved.

According to a third aspect of the present invention, in any one of the above aspects, the optical member is provided on a front surface of the exterior cover.

According to a fourth aspect of the present invention, in any one of the above aspects, the optical member has a distance measuring window or a remote control receiving window.

According to a fifth aspect of the present invention, there is provided the first, second or third aspect.
In the invention, the optical member has a distance measuring window or a remote control receiving window.

[0032]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS (First Embodiment) FIGS. 1, 2 and 3 show a first embodiment of the present invention.
Is a perspective view of the camera, FIG. 2 is an exploded perspective view of the camera, and FIG. 3 is a front view of the optical member. In these figures,
Reference numeral 1 denotes a front window, which is an optical member, and is formed of a known monolithic acrylic material having a spectral characteristic of transmitting infrared light and blocking visible light. Reference numerals 1a, 1b, and 1c denote an IRED light emission window, an AF light reception window, and a remote control reception window for AF, respectively.

1d, 1e, 1f are holes formed in the front window 1, 1d is a hole for the AE window, 1e is a hole for the red-eye lamp light emission window, and 1f is a hole for the finder objective. . Further, 1g, 1h, and 1i are printed portions which are transferred and printed on the front window 1 by in-mold molding. still,
In the present embodiment, the printed portion 1g is applied to the entire area other than the IRED light emission window 1a, the AF light reception window 1b, and the remote control reception window 1c for AF. A hole 4f for avoiding interference with internal parts is covered.

Reference numeral 2 denotes an AE window which is a transparent optical member, and reference numeral 3 denotes a red-eye lamp light emitting window which is also a transparent optical member. The AE window hole 1d and the red-eye lamp light emitting window hole 1e are respectively incorporated and integrated. Is done.

Next, a description will be given of the camera body side. Reference numeral 4 denotes a front cover which is an exterior cover member, and the front cover 4 is provided with a hole at a position corresponding to the front window 1. 4
a is an IRED light emitting hole for AF, 4b is a light receiving hole for AF, 4c
Is a remote control receiving hole, 4d is an AE light receiving hole, and 4e is a hole for a red-eye lamp.

Next, 5 is a finder objective lens, 6 is an AF light projecting lens, 7 is an AF light receiving lens, 8 is a red-eye lamp, and 9 is a lens barrel having a photographing optical system.
Although not shown, a remote control receiving sensor is provided inside the remote control receiving hole 4c, and an AE light receiving sensor is provided inside the AE light receiving hole 4d. Finally, 4f is a hole for avoiding interference with internal parts of the camera.

As described above, the front window 1 as an optical member is incorporated in the front cover 4 as an exterior cover member together with the AE window 2 and the window 3 for emitting red-eye lamps.

In the above configuration, since the front window 1 as an optical member is an acrylic resin having a spectral characteristic of blocking visible light, the front window 1 has higher reliability with respect to light entering into the camera than a transparent acrylic resin. In addition, since 1g, 1h and 1i are transferred and printed on the front window 1 by in-mold molding,
The degree of freedom in design is improved, and the appearance defect due to printing misregistration is also eliminated at the boundary between the transferred and printed portions.

(Second Embodiment) FIG. 4 shows a second embodiment of the present invention.
FIG. 3 is an exploded perspective view of the camera showing the embodiment. In the figure,
Reference numeral 1 'denotes a front window, which is an optical member, and is formed of a well-known acrylic material having a spectral characteristic of transmitting infrared light and blocking visible light. 1'a is AF
Window, an AF light receiving window, a remote control receiving window, and the like.

1'd, 1'e, 1'f are holes formed in the front window 1 ', 1'd is a hole for the AE window,
1'e is a hole for a red-eye lamp emission window, and 1'f is a hole for a finder objective.

Further, 1'f, 1'h, and 1'i are portions transferred and printed on the front window 1 'by in-mold molding. In the present embodiment, the printed portion 1'g is applied to the entire area other than the collective window 1'a so as to cover a hole for avoiding interference with the internal parts of the front cover which is an exterior cover member. I have. In the figure, the description on the camera side is the same as that of the first embodiment, and therefore will be omitted.

Reference numeral 2 'denotes an AE window which is a transparent optical member, and 3' denotes a window for emitting a red-eye lamp which is also a transparent optical member.
The AE window hole 1'd and the red-eye lamp light emitting window hole 1'e are integrated and integrated.

According to the above configuration, the same effects as those of the first embodiment can be obtained, and the range between the portion to be transferred and printed by the in-mold molding and the portion not to be printed can be relatively freely designed. That is, the degree of freedom in design can be further improved.

[0044]

As described above, the first embodiment according to the present application is described.
According to the invention, it is possible to improve the degree of freedom of the appearance design of the optical member arranged on the exterior of the camera, and it is possible to enhance the reliability of blocking light from leaking into the camera through the optical member. is there. Further, according to the second aspect of the present invention, a camera having an exterior cover member in which a hole for avoiding interference with an internal component of the camera is provided.
It is possible to further enhance the reliability of shielding light from leaking into the camera through the optical member.

[Brief description of the drawings]

FIG. 1 is a perspective view of a camera according to a first embodiment of the present invention.

FIG. 2 is an exploded perspective view of the camera according to the first embodiment of the present invention.

FIG. 3 is a front view of the front window according to the first embodiment of the present invention.

FIG. 4 is an exploded perspective view of a camera according to a second embodiment of the present invention.

FIG. 5 is an exploded perspective view of a conventional camera having an optical member having a visible light cut characteristic.

FIG. 6 is an exploded perspective view of a camera having a conventional optical member transferred and printed by in-mold molding.

FIG. 7 is a front view of an optical member of the camera shown in FIG. 6;

[Explanation of symbols]

 1, 1 ', 10, 20: Front window 2, 2', 11: AE metering window 3, 3 ', 12: Red-eye lamp emission window 4, 13, 21: Front cover 5, 14: Finder objective lens 6 , 15: AF light projecting lens 7, 16: AF light receiving lens 8, 17: red-eye lamp 9, 18, ... lens barrel

Claims (5)

[Claims] 1. A camera comprising an exterior cover comprising an exterior cover member of a camera and an optical member disposed on the exterior cover member, wherein the optical member has a spectral characteristic of transmitting infrared light and blocking visible light. A camera characterized in that the optical member is formed of a resin, and at least a part of the optical member is subjected to transfer printing by in-mold molding. 2. The exterior cover member has a hole for avoiding interference with an internal part of a camera, and the optical member has a portion on which the transfer printing is performed covering the interference avoidance hole. The camera according to claim 1, wherein: 3. The camera according to claim 1, wherein the optical member is provided on a front surface of the exterior cover. 4. The camera according to claim 1, wherein the optical member has a distance measuring window or a remote control receiving window. 5. The optical member according to claim 1, wherein said optical member has a distance measuring window and a remote control receiving window.
The camera according to.