CN1975558A - Viewfinder display apparatus and camera - Google Patents
Viewfinder display apparatus and camera Download PDFInfo
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- CN1975558A CN1975558A CN 200610169479 CN200610169479A CN1975558A CN 1975558 A CN1975558 A CN 1975558A CN 200610169479 CN200610169479 CN 200610169479 CN 200610169479 A CN200610169479 A CN 200610169479A CN 1975558 A CN1975558 A CN 1975558A
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Abstract
A viewfinder display apparatus which can realize superimpose having good visibility without giving uncomfortable feeling to a photographer is disclosed. The viewfinder display apparatus includes an eyepiece lens unit, an a member on which illumination unit which irradiates illumination light, and a plurality of region display sections arranged in a viewfinder optical path respectively to correspond to the focus detection regions. Each of the region display sections includes a reflecting region which is formed at portion of the region display section and which reflects illumination light from the illumination unit to guide the reflected light to the eyepiece lens unit. The reflecting region is formed to have convex shape and includes a plurality of microscopic prisms each of which has an inclined surface at the distal end of the reflecting region.
Description
The present invention is that application number is 03153858.4, the applying date is on August 25th, 2003, denomination of invention is the division of the patented claim of " viewfinder display apparatus and camera ".
Technical field
The present invention relates to have the viewfinder display apparatus and the camera of overlapping (superimpose) Presentation Function in selected focus detection zone a plurality of focus detection zone of demonstration in being arranged on the view finder visual field.
Background technology
In the past, as everyone knows for example open flat 1-277225 communique or the Japanese Patent Application Publication spy drives the camera that proposes to have like that overlapping Presentation Function in the flat 5-333259 communique the Japanese Patent Application Publication spy.In existing like this camera, make light beam process projection (projection) lens from the lighting unit that is disposed at pentaprism the place ahead, use the fast back reflective mirror that constitutes by half-reflecting mirror to reflect, to illuminate a plurality of display units that are configured on the focusing glass.
In addition, open in the display body finder that is proposed in the flat 4-278931 communique the Japanese Patent Application Publication spy, lighting unit is arranged on the front portion of pentaprism, the illumination light from this lighting unit is seen through in the pentaprism, be arranged on display body on the focusing glass with irradiation.
In addition, open in the optical devices that propose in the flat 10-048733 communique, the point distance measurement display unit corresponding to point distance measurement is set on the information display unit in the view finder that shows shutter speed and f-number the Japanese Patent Application Publication spy.
But, opening flat 1-277225 communique or Japanese Patent Application Publication spy above-mentioned Japanese Patent Application Publication spy opens in the camera in the flat 5-333259 communique, because the optical path length from the lighting unit to the focusing glass, and make light beam from lighting unit by projecting lens, principal reflection mirror etc., repeated multiple times reflects, reflects, and principal reflection mirror is made of half-reflecting mirror, so the leaded light poor efficiency.
And, in above-mentioned camera, owing to need the configuration space of projecting lens etc., needing to carry out the adjustment operation of the light beam that penetrates from lighting unit simultaneously, maximization, the cost of camera improve and throughput rate reduces so cause.
On the other hand, under situation with the bright focus detection frame of LED illumination integral body, though it is no problem when taking in bright place, but when taking in dark place, shinny part produces a very large impact in the view finder visual field by LED light, so concerning the cameraman who spies on view finder, will watch the demonstration in the view finder pretty troublesomely.
In the Japanese Patent Application Publication spy opens display body finder in the flat 4-278931 communique, illuminate focusing glass owing to make light see through pentaprism, the leaded light excellent in efficiency so light path shortens, but because lighting unit is configured in the front portion of pentaprism, so be difficult to built-in flash light emission device is configured in the pentaprism front portion.
In addition,, can not make the light transmission of the body that is taken because the display body on the focusing glass constitutes with mirror surface, so when the observer spies on view finder, corresponding partly with regard to crested in the body that is taken with display body.For example, under the situation that the display body on the focusing glass forms with shapes such as two lines or crosses, just do not see the body image that is taken according to the shape of this display body.
In the Japanese Patent Application Publication spy drives optical devices in the flat 10-048733 communique, because the point distance measurement display unit corresponding to point distance measurement is set on the information display unit in the existing view finder of external demonstration shutter speed in view finder visual field and f-number, just can not show selected point distance measurement with raising the cost.But, because the point distance measurement and the display position of shown reality departs from the view finder visual field, so the identity of talkative point distance measurement is not good.
Summary of the invention
The object of the present invention is to provide a kind of can be by low cost, miniaturization, do not need the adjustment of illumination light that production efficiency is improved, do not bring cameraman's sense of discomfort ground and realize good overlapping viewfinder display apparatus and the camera of identity.
First technical scheme of the present invention provides a kind of viewfinder display apparatus, and the display optical picture can show a plurality of focus detection zone simultaneously, comprising: ocular unit; The lighting unit of irradiating illumination light; And be arranged on a plurality of regional display part in the view finder light path corresponding to each focus detection zone; Here each regional display part has on its part and makes from the reflection of the illumination light of above-mentioned lighting unit to be directed to the reflector space of above-mentioned ocular unit; Above-mentioned reflector space is convex and forms, and has a plurality of microscopic prisms of holding the dip plane at its front end.
Second technical scheme of the present invention provides a kind of camera, comprising: above-mentioned viewfinder display apparatus; And will be directed to reflector elements in the above-mentioned viewfinder display apparatus from the light of object.
Description of drawings
Fig. 1 is the central longitudinal sectional view of the camera of this form of implementation.
Fig. 2 is the exploded perspective view used of overlapping illuminator in the camera of this form of implementation of explanation.
Fig. 3 (A) and 3 (B) are the oblique view of camera of first form of implementation and the enlarged drawing of central focus detection frame.
Fig. 4 (A) and 4 (B) are the oblique view of camera of first form of implementation and the enlarged drawing of left focus detection block.
Fig. 5 is the figure in the view finder visual field of camera of expression first form of implementation.
Fig. 6 is the enlarged drawing of the reflector space of this form of implementation.
Fig. 7 is the longitudinal profile enlarged drawing of reflector space of the central focus detection frame of this form of implementation.
Fig. 8 (A) and 8 (B) are the oblique view of second form of implementation and the enlarged drawing of central focus detection frame.
Fig. 9 is the longitudinal profile enlarged drawing of the reflector space of second form of implementation.
Figure 10 is the figure in the view finder visual field of camera of expression second form of implementation.
Embodiment
(first form of implementation)
Below, with reference to the camera of description of drawings first form of implementation of the present invention.
Fig. 1 is the central longitudinal sectional view of the camera of this form of implementation.When principal reflection mirror (half-reflecting mirror) 2 was positioned at observation place (catoptron is fallen the position) as shown in Figure 1, the body light L that is taken by not shown photographic optical system (imaging optical system) was directed in the finder optical system after by principal reflection mirror 2 reflection.On the other hand, when principal reflection mirror 2 when light path of photography is kept out of the way, be taken body light L after having passed through focal plane shutter (shutter) 7, on film F by imaging.In addition, also can replace film and use the imaging apparatus of CCD etc.
Focusing glass 3 is configured in being predetermined to be on the image planes of photographic optical system, and its upper surface constitutes with uneven surface 3a, with the projection body image that is taken.In addition, the downside of focusing glass 3 constitutes with Fresnel (Fresnel) the face 3b that the body light that is taken is assembled.In addition, as hereinafter described, on focusing glass 3, be formed with 7 focus detection zones.
On the top of eyepiece group 6, dispose and be used to measure the be taken known photometry lens 8 and the photometry sensor 9 of body brightness.In the bottom of eyepiece group 6, dispose LCD10, view finder internal information that the view finder internal information that is used for showing photographic information outside the view finder visual field shows usefulness and show the LED11 of usefulness and be used for the triangular prism 12 that light is directed to view finder that sees through LCD10.
Between hollow pentamirror 4 and photometry lens 8, dispose the lighting mechanism of overlapping demonstration usefulness, its details describes in the back with Fig. 2 and Fig. 3.
The luminescence unit 20 of the flash light emission device of purchasing on the camera body 1 is by the Xe pipe 20a that transformation of electrical energy is become luminous energy, make light by Xe pipe 20a emission gather reflecting umbrella 20b and the panel 20c that body one side that is taken uses effectively and apply the trigger winding 20d that is used to make Xe pipe 20a begin luminous voltage to constitute.
The luminescence unit 20 of flash light emission device as shown in Figure 1, is housed in the front portion of hollow pentamirror 4 when not using, in use, by with not shown hinge axis as rotation center, in Fig. 1, rotate along clockwise direction, pop-up is above camera body 1.
Fig. 2 is the exploded perspective view of the lighting mechanism of the overlapping demonstration usefulness in this form of implementation.Overlapping illuminating LED30 is made of 7 sheet types (chip-type) LED (LED-C_30a, LED-L1_30b, LED-L2_30c, LED-R1_30d, LED-R2_30e, LED-T_30f, LED-B_30g) that is provided with corresponding to being formed on 7 focus detection zones on the focusing glass 3.
The prism 33 of overlapping usefulness is implemented reflection evaporation (deposition) and is handled on reflecting surface 33a, this reflecting surface 33a makes the illumination light reflection from LED30, is directed in the hollow pentamirror 4 from the peristome 4a of hollow pentamirror 4.Then, the illumination light of LED30a～30g shines each the focus detection zone that is formed on the focusing glass 3 respectively.
From the illumination light of LED30, from the rear side of camera body 1 hollow pentamirror 4 is shone as shown in Figure 1, simultaneously by being directed on the focusing glass 3 in the hollow pentamirror 4.Utilize the optical path of illuminating light of such structure LED30 just to shorten, so leaded light efficient is good.
Fig. 3 (A) is the situation of each the focus detection frame part on the focusing glass 3 is really illuminated in expression from the illumination light of overlapping illuminating LED30 a oblique view.In Fig. 3 (A), hollow pentamirror 4 and the 3rd catoptron 5 show that as the section that has carried out cutting off in their central authorities in addition, Fig. 3 (B) illustrates the central focus detection frame 3a that will be formed on the central authorities of focusing glass 3 and carried out the situation of amplifying.
In Fig. 3 (A), LED-C_30a illuminates near the central focus detection frame 3a.Equally, LED-L1_30b illuminates in the left side near the focus detection frame 3b, LED-L2_30c illuminates near the left focus detection block 3c, LED-R1_30d illuminates in the right side near the focus detection frame 3d, LED-R2_30e illuminates near the right focus detection block 3e, LED-T_30f illuminates near the focus detection frame 3f, and LED-B_30g illuminates near the following focus detection frame 3g.
Here, the illumination light of LED30a～30g roughly comprise respectively or cover the focus detection frame integrally focusing detection block 3a～3g shine the skew that causes by the tolerance on making with compensation.
The illumination light of LED30a～30g is respectively by central set reflector space 3h, 3i, 3j, 3k, 3l, 3m, 3n reflection at each focus detection frame 3a, 3b, 3c, 3d, 3e, 3f, 3g.This reflected light is observed by hollow pentamirror the 4, the 3rd catoptron 5, eyepiece group 6.
Here, LED30 only illuminates the reflector space 3h～3n that is arranged on the small size in focus detection frame 3a～3g basically and gets final product, and in addition, the optical path of illuminating light owing to LED30 shortens as mentioned above, so can seek the miniaturization of illuminator (LED30 etc.).And then, because by reflector space 3h～3n being arranged on the central authorities of focus detection frame 3a～3g,, also can illuminate reflector space 3h～3n reliably, so do not need to carry out the adjustment of the illumination light of LED30 even then more or less be offset from the illumination light of LED30.
As check that the enlarged drawing shown in Fig. 3 (B) just can understand like that, the reflector space 3h that is arranged on the central authorities of central focus detection frame 3a makes the illumination light reflection of overlapping illuminating LED30a, so that be directed to by hollow pentamirror 4 and the 3rd catoptron 5 in cameraman's the eye.This reflector space 3h is made of the aggregate with the formed a plurality of fine reflecting surface 3hS of same shape, and the face of the relative focusing glass 3 of this fine reflecting surface 3hS is held predetermined angle and formed.
Here, be made of under the situation of reflector space integral body a face, reflector space must be held predetermined angle like that as mentioned above and form, in the case, owing to increase at the two ends of reflector space difference of height,, produce brightness disproportionation so the reflection vapor deposition treatment is just inhomogeneous.
For this reason, as this form of implementation,, reduce the influence of above-mentioned difference of height by the aggregate of a reflector space as the fine reflecting surface of holding same reflection angle constituted.Here, each the fine reflecting surface that is formed on the central authorities of each focus detection frame is set for best angle respectively for the pitch angle of focusing glass 3, so that the cameraman can see the light that is reflected by fine reflecting surface well.
In addition, in order on focus detection frame 3a～3g the illumination light from LED30 not to be generated reflected light composition towards cameraman's eyes (eyepiece group 6), the prism crest line of focus detection frame 3a～3g forms with respect to the illumination light almost parallel ground of LED30.Thus, even be under the situation of low-light level (environment of observation dark situation under) at the body light that is taken, focus detection frame integral body is not luminous yet, reflector space 3h～the 3n that just is configured in focus detection frame 3a～3g central authorities is luminous, so can not feel mixed and disorderly in the view finder owing to the reflected light composition increases as prior art.
Fig. 4 (A) is identical with Fig. 3 (A), and the situation that overlapping illuminating LED30 illuminates each the focus detection frame on the focusing glass 3 is shown.Fig. 4 (B) illustrates from spying on the cameraman of view finder, and the left focus detection block 3c that is positioned at left side (because becoming erect image by hollow pentamirror about 4 counter-rotating backs) has carried out the situation of amplifying.In addition, in Fig. 4, the label identical to the element numeral identical with Fig. 3.
As check that the enlarged drawing shown in Fig. 4 (B) is such with regard to understanding, be arranged on the reflector space 3j of the central authorities of left focus detection block 3c, make the illumination light reflection of overlapping illuminating LED30a, so that be directed to by hollow pentamirror 4 and the 3rd catoptron 5 in cameraman's the eye.This reflector space 3j is identical with reflector space 3h, is made of the aggregate with the formed a plurality of fine reflectings surface of same shape, and this fine reflecting surface is held predetermined angle to the face of focusing glass 3 and formed.
, the reflector space 3j of left focus detection block 3c is different with the reflector space 3h of central focus detection frame 3a, relatively the fore-and-aft tilt angle θ of left focus detection block 3c.And, the vertically quadrature roughly of the illumination light of overlapping illuminating LED30c and fine reflecting surface.
This is because will be the center with view finder optical axis (central focus detection frame 3a), existing the reflector space 3h of fine reflecting surface in the reflector space of the focus detection frame about it and central focus detection frame 3a similarly still to be horizontal vertical arranges under the situation about being configured, be directed to for illumination light in cameraman's the eye, need tilt along diaxon with LED30.Under situation about tilting along diaxon like this, the shape of the reflecting surface in the reflector space is different types, and the size of reflector space changes because of the difference of the position of focus detection frame, just produces brightness disproportionation.
In order to prevent this problem, in this form of implementation, making with view finder optical axis (central focus detection frame 3a) is the reflector space that there is the focus detection frame about it in the center, relatively the fore-and-aft tilt predetermined angle theta of focus detection frame.Thus, only the inclination angle with an axle is altered to best angle, just can be exactly with the illumination light of LED30 be directed to the cameraman in, can prevent the difference of the reflector space size of each focus detection frame.
Fig. 5 is the picture of view finder of the camera of this form of implementation.In the view finder picture, demonstrate corresponding 7 focus detection frame 3a, 3b, 3c, 3d, 3e, 3f, the 3g in focus detection zone with focus detection device 15.
Because the cameraman watches focus detection frame 3a～3g on the focusing glass 3 by hollow pentamirror 4 and the 3rd catoptron 5, so the position relation of counter-rotating about just becoming the configuration of the focus detection frame 3a～3g among the relative Fig. 3 of viewed focus detection frame 3a～3g on the view finder picture and having carried out.
Illumination light from overlapping illuminating LED30, reflector space 3h, 3i, 3j, 3k, 3l, 3m, 3n in each focus detection frame are throwed with light beam, covering these zones, and do not illuminate the reflector space that is configured in the focus detection frame around the focus detection frame.
In order to make the prism that constitutes focus detection frame 3a～3g not reflect light from the remainder in the illumination light of overlapping illuminating LED30, the optical axis almost parallel ground formation of the illumination light of the relative LED30 of crest line of this prism not meaninglessly.
Here, because the prism of focus detection frame 3a～3g sees through the part of the body light L that is taken, so the body light L that is taken that has passed through this prism is as than being observed by the cameraman by the dark half transmitting state of body light L that is taken of the part of the hair side around the focus detection frame on the focusing glass 3.Thus, the cameraman just can differentiate focus detection frame 3a～3g in the view finder picture.
On the other hand, on the surface of the reflector space 3h～3n of the central authorities that are arranged at each focus detection frame 3a～3g, for example utilize the metal of aluminium or chromium and so on to implement the reflection vapor deposition treatment.For this reason, in reflector space 3h～3n, can see through the body light L that is taken hardly.Thereby reflector space 3h～3n is identified as pore in the view finder picture.
Thus, spy on view finder the cameraman and observe under the situation of the common body image that is taken that does not have overlapping demonstration, reflector space 3h～3n is just identified as stain like that as mentioned above, so can not see the body image that is taken as prior art.
Make illumination light reflex time at this reflector space 3h～3n from LED30, need make its cameraman who is spied on view finder easily identification, in addition, will be taken volume image when observing, and need make reflector space 3h～3n not disturb observation as common state the cameraman.Thereby the size of reflector space 3h～3n need be to satisfy the size of above-mentioned condition.Specifically, preferably establish the size of reflector space 3h～3n less than φ 0.2mm.
In Fig. 5,, there is the charging that shows shutter speed, aperture, flash light emission device to finish the view finder internal information display unit of the necessary information relevant such as demonstration with photography at the downside of view finder picture.
Fig. 6 represents the figure of the reflector space 3h～3n of 7 points that take out the central authorities that are positioned at each focus detection frame 3a～3g.
In each reflector space 3h～3n, the fine reflecting surface of horizontal 40 μ m, vertical 25 μ m is arranged to surround the circle less than φ 0.2mm by staggered.And, in each reflector space 3h～3n, on border circular areas 3o, the 3p in being contained in this reflector space, 3q, 3r, 3s, 3t, the 3u (using the oblique line souvenir among the figure), implement to utilize the reflection vapor deposition treatment of metal.
When the illumination light from LED30 was irradiated onto reflector space 3h～3n when last, indirect illumination light in border circular areas 3o～3u that this reflection vapor deposition treatment is crossed then.
Here, why make and reflect the regional rounded of vapor deposition treatment, it be the reasons are as follows.Promptly, as illustrated in fig. 4, be arranged in the focus detection frame about it at relative view finder optical axis (central focus detection frame 3a), this reflector space relative focus detection frame fore-and-aft tilt predetermined angle theta is configured, so be suppressed to Min. and adopt circle for difference with the reflector shape among each reflector space 3h～3n.
In addition,, spread, so, preferably make the evaporation zone roughly rounded for the disorder with the shape in evaporation zone is suppressed to Min. because produce evaporation to mask this moment though regional 3o～3u is carried out vapor deposition treatment.
On the other hand, owing to make the area of border circular areas 3o～3u smaller, when reflector space 3h～3n being carried out the evaporation operation, can allow the offset in evaporation zone than the area of reflector space 3h～3n.
Fig. 7 represents the longitudinal profile enlarged drawing of reflector space 3h.Reflector space 3h forms as the aggregate of the fine reflecting surface 3hS of same shape like that as mentioned above.Relatively to hold the inclined-plane 3hR at pitch angle be actual reflecting surface on the surface of focusing glass 3, and the angle of inclination of this inclined-plane 3hR is so that be directed into the such angle cameraman's the eye and form from the light beam of overlapping illuminating LED30 projection.
In addition, in this form of implementation,, also can be arranged on the optional position in focus detection frame 3a～3g though reflector space 3h～3n is configured in the central authorities of focus detection frame 3a～3g.
(second form of implementation)
Camera to second form of implementation of the present invention describes.
Fig. 8 (A) is illustrated in the camera of this form of implementation, really illuminates the figure of the situation of each the focus detection frame part on the focusing glass 40 from the illumination light of overlapping illuminating LED39.In Fig. 8 (A), hollow pentamirror 4 and the 3rd catoptron 5 show that as the section that the central authorities at them have carried out cutting off in addition, Fig. 8 (B) illustrates the central focus detection frame 40a that will be formed on the central authorities of focusing glass 40 and carried out the situation of amplifying.
In Fig. 8 (A), LED-C_39a illuminates near the central focus detection frame 40a.Equally, LED-L1_39b illuminates in the left side near the focus detection frame 40b, LED-L2_39c illuminates near the left focus detection block 40c, LED-R1_39d illuminates in the right side near the focus detection frame 40d, LED-R2_39e illuminates near the right focus detection block 40e, LED-T_39f illuminates near the focus detection frame 40f, and LED-B_39g illuminates near the following focus detection frame 40g.
Here, the illumination light of LED30a～30g roughly comprise respectively or cover the focus detection frame integrally focusing detection block 40a～40g shine the skew that causes by the tolerance on making with compensation.
In addition, Yi Bian be cut off in the frame line of each focus detection frame 40a, 40b, 40c, 40d, 40e, 40f, 40g, reflector space 40h, 40i, 40j, 40k, 40l, 40m, 40n are configured in this cut-out zone.
Be reflected on reflector space 40h, 40i, 40j, 40k, 40l, 40m, 40n respectively from LED39a～39g illumination light, this reflected light is observed by hollow pentamirror the 4, the 3rd catoptron 5 and eyepiece group 6.
Here, LED39 only illuminates the reflector space 40h～40n that is arranged on the small size in focus detection frame 40a～40g and gets final product, and is in addition, same with first form of implementation, because the optical path of illuminating light of LED39 shortens, so can seek the miniaturization of illuminator (LED39 etc.).And then, because by reflector space 40h～40n being arranged on the central authorities in the cut-out zone of focus detection frame 40a～40g, even then the illumination light from LED39 more or less is offset, also can illuminate reflector space 40h～40n reliably, so do not need to carry out the adjustment of the illumination light of LED39.
As the enlarged drawing of checking Fig. 8 (B) just can understand, reflector space 40h was arranged on the extended line of cut frame line in the frame line of central focus detection frame 40a.This reflector space 40h makes the illumination light reflection of overlapping illuminating LED39a, so that be directed to by hollow pentamirror 4 and the 3rd catoptron 5 in cameraman's the eye.
This reflector space 40h constitutes (Fig. 9) by the aggregate with the formed a plurality of fine reflecting surface 40hS of same shape, and the face of the relative focusing glass 40 of this fine reflecting surface 40hS is held predetermined angle and formed.
Here, under the situation that reflector space integral body is constituted as a reflecting surface, reflector space must be held predetermined angle like that as mentioned above and form, in the case, owing to increase at the two ends of reflector space difference of height,, produce brightness disproportionation so the reflection vapor deposition treatment is inhomogeneous.
For this reason, as this form of implementation,, reduce the influence of above-mentioned difference of height by the aggregate of a reflector space as the fine reflecting surface of holding same reflection angle constituted.Here, the fine reflecting surface that is formed in the reflector space of an avris of each focus detection frame is set for best angle respectively for the pitch angle of focusing glass 40, so that the cameraman can see the light that is reflected by fine reflecting surface well.
In addition, in order on the focus detection frame illumination light from LED39 not to be generated reflected light composition towards cameraman's eyes, the prism crest line of focus detection frame forms with respect to the illumination light almost parallel ground of LED39.Thus, even be under the situation of low-light level (environment of observation dark situation under) at the body light that is taken, focus detection frame integral body is not luminous yet, reflector space 40h～the 40n of central authorities that just is configured in focus detection frame 40a～40g is luminous, so can not feel mixed and disorderly in the view finder owing to the reflected light composition increases as prior art.
Figure 10 is the picture of view finder of the camera of this form of implementation.In the view finder picture, demonstrate corresponding 7 focus detection frame 40a, 40b, 40c, 40d, 40e, 40f, the 40g in focus detection zone with focus detection device 15.
Because the cameraman watches focus detection frame 40a～40g on the focusing glass 40 by hollow pentamirror 4 and the 3rd catoptron 5, so the position relation of counter-rotating about just becoming the configuration of the focus detection frame 40a～40g among the relative Fig. 8 of viewed focus detection frame 40a～40g on the view finder picture and having carried out.
Illumination light from overlapping illuminating LED39, reflector space 40h, 40i, 40j, 40k, 40l, 40m, 40n in each focus detection frame are throwed with light beam, covering these zones, and do not illuminate the reflector space that is configured in the focus detection frame around the focus detection frame.
In order to make the prism that constitutes focus detection frame 40a～40g not reflect light from the remainder in the illumination light of overlapping illuminating LED39, the optical axis almost parallel ground formation of the illumination light of the relative LED39 of crest line of this prism not meaninglessly.
Here, because the prism of focus detection frame 40a～40g sees through the part of the body light L that is taken, so the body light L that is taken that has passed through this prism is as than being observed by the cameraman by the dark half transmitting state of body light L that is taken of the roughness around the focus detection frame on the focusing glass 40.Therefore, the cameraman just can differentiate focus detection frame 40a～40g in the view finder picture.
On the other hand, on the surface of the reflector space 40h～40n on the one side that is arranged at each focus detection frame 40a～40g, for example utilize the metal of aluminium or chromium and so on to implement the reflection vapor deposition treatment.For this reason, in reflector space 40h～40n, can see through the body light L that is taken hardly.Thereby reflector space 40h～40n is identified as stain in the view finder picture.
Thus, spy on view finder the cameraman and observe under the situation of the common body image that is taken do not have overlapping demonstration, reflector space 40h～40n is just identified as stain like that as mentioned above, so can not see Chu's body image that is taken as prior art.
Make illumination light reflex time at this reflector space 40h～40n from LED39, need make its cameraman who is spied on view finder easily identification, in addition, will be taken volume image during, and need make reflector space 40h～40n not disturb observation as common state observation the cameraman.Thereby the size of reflector space 40h～40n need be to satisfy the size of above-mentioned condition.Specifically, preferably establish the size of reflector space 40h～40n less than φ 0.2mm.Perhaps, be preferably more than the φ 0.1mm.
In Figure 10,, there is the charging that shows shutter speed, aperture, flash light emission device the view finder internal information display unit 35 of the necessary information relevant such as to finish to show with photography at the downside of view finder picture.
In this form of implementation, because the part of the frame line of the focus detection frame 40a～40g of half transmitting is cut off, reflector space 40h～40n is configured in this cut zone, so concerning the cameraman who spies on view finder, just can regard focus detection frame 40a～40g and reflector space 40h～40n as a frame.For this reason, even when common view finder is observed, can there be sense of discomfort ground to observe the body image that is taken yet.
The present invention is not limited to above-mentioned form of implementation.In this form of implementation, though on focusing glass, directly formed reflector space, but also can make overlapping LED light reflex to the reflecting plate of holding the reflecting surface zone of direction of cameraman's eyes, utilize the reflection on this reflecting plate by near focusing glass, being provided with in addition.
According to the present invention, reflect by the reflector space that is arranged on the point-like of (in frame area territory institute area surrounded) in the focus detection zone by making illumination light, and be directed in cameraman's the eye, just improved the identity in the view finder visual field.
Specifically, under the situation that selected focus detection region overlapping is shown,, just can make the cameraman discern selected focus detection zone by the reflector space of point-like being lighted with high brightness.In addition,, the reflector space of point-like is covered, just can prevent from not see the body image that is taken when observing under the situation of the body image that is taken under the common state that is not having overlapping demonstration.
Although above the preferred form of implementation of the present invention is illustrated, be construed as in the scope of the claim below not breaking away from, can revise and change the present invention.
Claims (6)
1. viewfinder display apparatus, display optical picture and can show a plurality of focus detection zone is characterized in that comprising:
Ocular unit;
The lighting unit of irradiating illumination light; And
Be arranged on a plurality of regional display part in the view finder light path corresponding to each focus detection zone;
Each regional display part has the illumination light that makes from above-mentioned lighting unit and reflects to be directed to the reflector space of above-mentioned ocular unit on its part;
Above-mentioned reflector space is convex and forms, and possesses a plurality of microscopic prisms with dip plane at its front end.
2. viewfinder display apparatus according to claim 1 is characterized in that:
The rounded formation of above-mentioned reflector space, its diameter is less than 0.2mm.
3. viewfinder display apparatus according to claim 1 is characterized in that:
The height of above-mentioned a plurality of microscopic prisms mutually about equally.
4. viewfinder display apparatus according to claim 1 is characterized in that:
The above-mentioned zone display part forms on focusing glass, and above-mentioned reflector space is positioned at above-mentioned ocular unit one side.
5. viewfinder display apparatus according to claim 1 is characterized in that:
Also be included in the top of above-mentioned zone display part, be disposed at and above-mentioned ocular unit position adjacent, the mirror unit that will guide to above-mentioned ocular unit from the light of object;
Above-mentioned lighting unit is configured in the top of above-mentioned ocular unit.
6. camera is characterized in that comprising:
The described viewfinder display apparatus of claim 1; And
To be directed to the reflector elements in the above-mentioned viewfinder display apparatus from the light of object.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP245535/2002 | 2002-08-26 | ||
| JP2002246011A JP3566712B2 (en) | 2002-08-26 | 2002-08-26 | camera |
| JP246011/2002 | 2002-08-26 |
Related Parent Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB031538584A Division CN100376999C (en) | 2002-08-26 | 2003-08-25 | Viewfinder display device and camera |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1975558A true CN1975558A (en) | 2007-06-06 |
| CN100472313C CN100472313C (en) | 2009-03-25 |
Family
ID=32053992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101694797A Expired - Fee Related CN100472313C (en) | 2002-08-26 | 2003-08-25 | Viewfinder display apparatus and camera |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP3566712B2 (en) |
| CN (1) | CN100472313C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104246597A (en) * | 2011-09-30 | 2014-12-24 | 富士胶片株式会社 | Imaging device, imaging method, recording medium and program |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4566804B2 (en) * | 2004-04-21 | 2010-10-20 | キヤノン株式会社 | Display device in viewfinder and camera having the same |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0843916A (en) * | 1994-07-29 | 1996-02-16 | Canon Inc | Camera |
| US5734428A (en) * | 1994-03-04 | 1998-03-31 | Canon Kabushiki Kaisha | Camera with superimpose display device |
| JPH09218440A (en) * | 1996-02-15 | 1997-08-19 | Nikon Corp | Focal plane and photographic device using the same |
| JP3445052B2 (en) * | 1996-02-28 | 2003-09-08 | キヤノン株式会社 | Display device in viewfinder |
| JPH1114983A (en) * | 1997-06-25 | 1999-01-22 | Sharp Corp | Liquid crystal display element |
| JPH11142631A (en) * | 1997-11-06 | 1999-05-28 | Nitto Denko Corp | Prism type reflecting plate |
| JP4324997B2 (en) * | 1998-10-15 | 2009-09-02 | 株式会社ニコン | camera |
| JP2001075149A (en) * | 1999-09-08 | 2001-03-23 | Minolta Co Ltd | Display device within finder screen |
| JP2002055384A (en) * | 2000-08-11 | 2002-02-20 | Canon Inc | Finder device and camera using the same |
| JP2002090819A (en) * | 2000-09-18 | 2002-03-27 | Canon Inc | Finder device and optical equipment using the same |
-
2002
- 2002-08-26 JP JP2002246011A patent/JP3566712B2/en not_active Expired - Fee Related
-
2003
- 2003-08-25 CN CNB2006101694797A patent/CN100472313C/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104246597A (en) * | 2011-09-30 | 2014-12-24 | 富士胶片株式会社 | Imaging device, imaging method, recording medium and program |
| CN104246597B (en) * | 2011-09-30 | 2016-10-12 | 富士胶片株式会社 | Imaging device and formation method |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3566712B2 (en) | 2004-09-15 |
| JP2004085841A (en) | 2004-03-18 |
| CN100472313C (en) | 2009-03-25 |
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Granted publication date: 20090325 Termination date: 20110825 |