JPS58135404A - Image pickup element - Google Patents

Abstract

PURPOSE:To obtain a miniature image pickup element with scale which excels in precision, by providing an electrochromic element of full solid-state thin film transmission type to the image forming surface of an image pickup element or at the front side of said image forming surface and then changing a scale pattern by the control of impressed voltage. CONSTITUTION:Lower electrodes 62 are formed in division on the surface of a glass substrate 61 by means of insulated parts 65. Then an EC layer 63 is formed on the entire surface of the substrate 61, and a common upper electrode 64 is formed. Thus a full solid-state thin film transmission type EC element is obtained. Such an EC element is provided on the image forming surface of an image pickup element or at the front part of said image forming surface. The voltage impressed between the electrodes 62 and 64 is controlled. As a result, plural patterns are colored and decolored as shown by figures (a) and (b). In such a way, a scale pattern is displayed with just a simple electrical operation with no mechanical operation at all. At the same time, both image forming position and reticle position can be maintained with high precision.

Description

[Detailed description of the invention] This release W! The i4 can be used with various image pickup tubes such as vidicon, or with C0D (one-strike coupling device) and MO8 (gold l141).
[Compound Semiconductor) II National Gymnastics Image - This relates to an image sensor as an image sensor, such as pre-electric charge, and a modified image sensor that can arbitrarily color and erase a desired scale pattern on IP#.

In a common sense imaging device using a camera with a business controller or COD&, K is used for the photographer to understand the size, shape, position, etc. of the subject on the screen, as shown in No. 111.
For example, place a reticle (3) having a scale pattern as shown in FIG. ) may be projected together with the subject image (4) onto the imaging plane of the imaging device @). This type of reticle (3) has a structure in which a front scale pattern as shown in No. 2 is engraved on the surface of the glass plate using a metal such as Tarom. 1k], the scale image of the reticle is imprinted on the
Further, the scale pattern is also fixedly determined to be 1W11111. In order to erase such a scale pattern or to round it up in place of another scale pattern, it is necessary to mechanically remove or replace the reticle (3). In addition to the complicated operation that is difficult to perform indoors, mechanical wear, vibration, dust buildup, and poor responsiveness make the mechanism more complicated and the lid larger. Furthermore, the accuracy of the imaging position and the reticle position is maintained by the edge-optical system. 1ll
II.

It is possible to solve the problems associated with mechanical operation of the reticle such as IJ11 and # difference, and contribute to the reduction in size and weight of the device.In addition, it is possible to eliminate or change the scale pattern 0tI4 with a simple operation to represent the mechanical operation. It is an object of the present invention to provide an image sensor with a scale that does not affect the positioning accuracy yc with the image forming position by the imaging optical system even by as much as 1°.

In other words, the main feature of this invention is that an all-solid-state thin-spread heavy electrochroic element that colors and decolors a scale pattern according to the control of applied voltage is placed in front of the image forming image. By controlling the applied voltage, a scale pattern of 111 appears on the koji image screen, and the Dan-ku disappears.
These can be accomplished with simple, magical operations without any mechanical action.

In the present invention, the 1llle electrochromic element has a structure of 9 "electrode-electrochromic material (tungsten II oxide)-dielectric material (iridium oxide)-electrochromic material" as shown in, for example, Japanese Patent No. 轡-@55-88029. , or as indicated in the %Kaisha 56-4679 newsletter.
Electrode - electrochromic material (tungsten oxide)
- Insulating material <VS conversion mental) - Electrostatic material (iridium hydroxide) -tliJ 0IllIi
All-consolidated thin films made by K, etc. are far more popular. The entire layer interposed between the opposing electrodes will hereinafter be referred to as a GC layer.

In the 9ζO invention, the term ``gIA device'' includes 4) 11 image pickup tubes including vidicon, and solid-state image sensors such as MOLILL COD.Therefore, this invention includes these aSS elements and II gold body thin films. It can be said to be one of the transmission electromagnetic elements and OIL elements.

The Eletatroc I2 IC element may be a face plate of a business controller, or a VHD CCD image sensor unit I.
IWJ or its copper laths are fixedly overlaid by gold-grade metal or continuous vapor deposition, and thus the mechanically movable parts have a gold-containing surface structure.

Below are some of the specific examples of ζO Yamei along with drawings. I! -do.

No.! What is shown is an embodiment of the present invention in a CCD solid-state image sensor, in which a scale pattern p indicator and L2 are shown in the wII rain of the CC-D image center t@-1.
Glass 1 [
The senna @all and the electrochromic element axis are both formed on the 111th surface of the package body (2) by ThK# of the package body (2).
K has been made so that it will be stopped. Of course, it is also possible to attach the transparent base 1 to the glass 11 through a separate 4 from the electrocrystalline A4 element @ support glass 11. (al(b)#i This shows the configuration O-n of the electric motor control element.
1 is a cocoon recorder with a glass ring or a glass plate on the side,
On No. 7**, a transparent lower electrode - 1, followed by an IK patterned 9 EC layer according to the shape of the scale pattern, and then a transparent upper electrode - are superimposed to form an eletatroc wsi-trick element. By applying a control voltage in the direction of color development to both the upper and lower electrodes of p1, the MC layer formed on the edge of the scale pattern develops a true color, for example.
On the other hand, by applying a voltage in the opposite direction or by short-circuiting both electrodes, the IcC layer becomes transparent again, and in this way, the electrocrystalline E! Depending on the arrangement of the ink elements, it is also possible to cause distortion during vibration during mechanical abrasion.
This is a book that allows you to maintain the initial setting accuracy for the relative position with the C layer. .

FIG. 5 shows another implementation fa of C's invention in a CCD solid body. $ Zuga)'s Monodoke Electrota Yobatsuku Takako - is the image senna part II)'s ll
The difference is that it is formed l1Ki[I[I], and its 4I is not much different from that in Figure 5). This turtle 5I! l
With this, it is possible to almost completely align the imaging position of the photographic object by the imaging optical system and the position of the scale pattern of the electro-tackle element, and the IIkKiIII
aOliAvhS + - hA p -yl 774 It can be said that this is the most uniform structure for zeroing in with y focus.

As can be said in the explanation up to this point, the main axis of Electrochromic is - as shown in Figure 4 (alga), the EC pigeon is a single scale pattern of M color/disappearance. However, in this invention, by changing the electrodes or the structure of the 10th floor of the electrochromic element, it is also possible to change the scale patterns that are different from each other by selectively switching the application of the control voltage. It is possible.

For example, FIGS. 6-1(b) and 6-1(c) show an example in which a 2 m scale pattern can be selectively expressed with one electrochroic element. In this case, the layer structure of the electrochromic element is formed by first dividing the lower electrode into several parts by an insulating part 2 in the direction of the glass substrate 61J, as shown in FIG. 5at-formed and one common Js
An electrode is formed. In this narrow electrode arrangement, by applying a control voltage in the coloring direction only between some of the divided lower electrodes and the common upper electrode, for example, the sixth
The scale pattern of the nine-cross mark (as shown in Figure (a)) is produced by applying a control voltage in the direction of color development only between the lower electrode and the common upper electrode. Another scale pattern represented by the cross mark, - mark, and K shown in Fig. 6, etc.) can be set to f-4. In this way, by patterning at least one of the upper or partial electrodes, a plurality of scale patterns can be selectively revealed with one electrochroic element. The scale pattern can be formed by patterning the EC layer as shown in FIG. 1, by patterning at least one of the opposing electrodes as shown in FIG. 6, or by patterning both the FiEC layer and the electrode. It can be achieved.

FIG. 7 (at (bl (cl Fi) shows yet another embodiment of this invention, so in this example #l7B(c)K
As shown, the layer structure of the electrochromic element includes first electrodes a and the first EC layer qJ1 on the surface of the glass substrate συ.
It has a multi-layer structure in which the second electrode CI4, the second EC layer aj1 and the sixth electrode σe are laminated, and the first electrode @ and the second electrode σ
By applying a control voltage in the direction of color development only between the
By making the scale pattern of FIG. 7(a) appear on the IEC layer σJK, and applying a control voltage in the coloring direction only between the second electrode σ◆ and the fifth electrode σ, the second ECsm as
From VC to Figure 7 (BL), K is marked so that the scale pattern of BL is revealed.In this way, by multi-layering the KEC layer and the transparent layer, it is possible to selectively reveal multiple scale patterns with one electrochromic element. is possible,
Furthermore, such a multilayer structure and FIG. 6 (at (bl (
By creating a composite structure with a split structure as shown in cl, a large number of scale patterns can be selectively expressed.

Note that the present invention is limited to the example shown in the scale no-turn U diagram that is produced by an electrochroic element, and the scale pattern may include numbers, letters, symbols,
It is dangerous to mention that it may be made to appear by combining other shapes.

As described above, according to the present invention, the selective appearance or change of scale patterns can be achieved without requiring mechanical parts, thereby reducing component wear and mechanical vibration, and reducing the size and weight of the imaging device. It is possible to obtain an image sensor with a scale that can be easily controlled by operation using electric signals, and the relative positional accuracy with the imaging optical system can in principle be adjusted to the initial setting accuracy of tKI11. It is stable and can achieve 9 scale rewards.

[Brief explanation of the drawing]

Fig. 1 is an optical system showing an m@ system that displays a scale pattern using a conventional reticle, Fig. 2m is a vL light diagram showing an example of a scale pattern, and Figs. A front view and a vertical cross-sectional view showing an embodiment, and FIG. 6 is a vertical sectional view showing another embodiment of the present invention, and FIG.
) is a scale pattern (&) of an electrochroic element according to yet another embodiment (divided structure) of the present invention (&) (b) and partially enlarged cross section-1 Fig. 7 (a)
$) and (e) are further examples of this invention.
FIG. 2 shows different scale patterns (a) and (b) of an electrochroic element having a multilayer structure (multilayer structure) and a partially enlarged Mengzan diagram. tail: image sensor section, 1F111: package body, -2ho-glass plate, -m: electrokreuct collector, -16υσ1) 2 glass substrate, -12 lower electrode, mW3 j E 0 layer, III@: upper l5111
k, U'a: first electrode, σ3=first EC layer, σ4=second electrode, σ$: second EC layer, σ-: No 5 Kamito. Representative Patent Attorney Masaru Sato 2 figures, 4 figures, 16 figures, 27 figures (α) (1) (Machi (4) CG)

Claims (1)

[Claims] An image pickup device □, characterized in that an all-solid-state thin film transmission electrochromic device for coloring and decolorizing a scale pattern in accordance with the control of applied voltage is disposed in front of the lens.