JP2911307B2 - Camera data recording device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to date and date
Camera data recording device that records data such as messages
It is about .

[0002]

2. Description of the Related Art A camera capable of changing the size of a photographing screen (for example, a camera capable of photographing panoramic size) has been frequently used recently. Since the device (date imprinting device) did not have a function corresponding to the screen size switching, when the screen was changed to a small screen (for example, a panorama size screen), the position of the imprinted character was outside the screen. In addition, there is a possibility that the characters to be printed become too large with respect to the screen size.

Therefore, for a camera having a screen size switching function, there is provided a function of reducing the size of a printed character in accordance with the reduction of the screen size and moving the printing position toward the inside of the screen. You need your own imprinting device.

As a method for changing the size of the characters to be imprinted in accordance with the switching of the screen size, the following method is conventionally known.

[0005] As a date imprinting device for imprinting from the back lid, two sets of imprinting units having different character sizes and imprinting positions according to switching between full size and half size are used.

[0006] The light from one light emitting unit is first projected.
And the state where it is guided to the second imprinting position.
To change the imprint position .

[0007]

[0008]

The above-mentioned method or apparatus has the following disadvantages.

[0009] With regard to the method described above,
It is expensive because multiple knits are required . Ma
In addition, high-quality imprinting is required for the above method.
If you try to go to either the first or second imprint position
Meets optical conditions even when light is being guided
Must be designed in such a way
Difficult to design .

[0010]

[0011]

[0012]

The present invention has been made in view of the circumstances described above.
Camera data that can be switched between data recording states
It is intended to realize a recording device with a simple configuration.
You .

[0014]

According to the present invention, there is provided a data recording apparatus for a camera, comprising: a first optical path for guiding light used for data recording to a first data recording position; To a second data recording position different from the first data recording position, and a second light path different from the first light path, and light emitted from a light source in a predetermined direction. Splitting means for splitting the divided light into at least the light guided to the first optical path and the light guided to the second optical path, wherein the light is used for data recording in each of the first and second optical paths. Simultaneously form a light flux,
When data is recorded by using a light beam formed on one of the first and second optical paths, a light shielding means for shielding the other optical path is provided.

[0015]

[0016]

[0017]

According to the present invention, there is provided a spectral means for splitting light emitted from the light source in a predetermined direction into at least light guided to the first optical path and light guided to the second optical path.
Compared to the case where light emitted from the light source in different directions is guided to the first optical path and the second optical path, respectively, data such as characters such as a date and a message are recorded in both data recording positions in a clear similar shape without distortion. Can be done. In addition, it is not necessary to arrange reflective members and the like at positions separated from each other as in the case where light emitted in different directions from the light source is guided to the first optical path and the second optical path, respectively. Can be smaller. Further, since the light-shielding means for shielding the other optical path when data is recorded using the light beam formed on one of the first and second optical paths, the data recording apparatus of the camera can switch the data recording position. Can be realized with a simple configuration.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 and FIG. 2 are schematic views of a main part of a camera which is a premise of the present invention.

In FIG. 2, reference numeral 1 denotes a camera body, and 2 denotes an LE.
D array, 3 is a first photographic lens for imprinting character information when photographing on a full size screen, and 4 is a second photographic lens for imprinting character information when shooting on a panoramic size screen.
Imprint lens, 5 is a selection knob operated when displaying a panorama size screen, 6 is an upper wing that shields the upper edge of the aperture when displaying a panorama size screen, and 7 is a lower wing that shields the lower edge of the aperture when displaying a panorama size screen. Wing. A connecting member 8 connects the upper wing 6 and the lower wing 7 so that the directions of movement are opposite to each other.
a, the motion of the upper wing 6 is transmitted to the lower wing 7 in the opposite direction by the first and second shafts 8b and 8c.

FIG. 1 is a cross-sectional view of the aperture of the camera shown in FIG. 2, in which a full-size screen is selected, the upper wing 6 and the lower wing 7 are retracted from the front of the first projection lens 3, and the second The lower wing 7 shields the front of the imaging lens 4. On the other hand, when the panorama size screen is selected, the first
The upper wing 6 covers the front of the projection lens 3, and the lower wing 7 retracts from the front of the second projection lens 4. In this manner, the optical path of each of the information imprinting lenses 3 and 4 is configured in conjunction with the change in screen size, and character information is imprinted through only one of the lenses according to the screen size.

The dimension in the height direction of the character information to be imprinted is the dimension x in the height direction of the LED array 2, the distance y ₃ from the LED array 2 to the first imprint lens 3 and the second imprint lens 4, and y ₄ and distances z ₃ and z ₄ between the lenses 3 and 4 and the film are expressed as follows. That is, the dimension in the height direction of the character information to be imprinted on the full size screen is x (z ³ / y ³ ), and the dimension in the height direction of the character information on the panorama size screen is x (z ⁴ / y ⁴ ). ,
Becomes The dimension of the character information in the height direction is determined by changing the focal length of the lens to obtain the ratio of two characters (z ₃ × y ₄ ).
/ (Y ₃ × z ₄ ) can be as large as 2 or 3/2.

FIG. 3 is a diagram for explaining a drive signal applied to the LED array 2 in order to determine the horizontal dimension of character information. 3-a is a signal output by the encoder for detecting the amount of film movement in accordance with film feeding,
-B is a trigger signal generated from the LED array drive circuit in response to the rise and fall of the signal 3-a, and 3-c is a double that complements the interval between the pulses of the trigger signal 3-b using a timer. Trigger signal.

The trigger signal 3-c is, for example, one in four in the full size mode and one in two in the panorama size. In this case, the horizontal size is 1 when the full size is set and 1 when the panorama size is set. / 2, one in three in the full size mode, two in the panorama size ... In this case, a character size in which the panorama size 2/3 and the full size 1 have an integer ratio to each other can be created.

Therefore, by making the ratio in the height direction determined by the optical system substantially equal to the ratio in the horizontal direction determined by the electrical control method of selecting the trigger pulse, both the full size screen and the panorama size screen can be used. For example, it is possible to create characters in which the size of a 7 × 5 matrix of the same components is almost proportional.

By doing so, the character size can be changed without having the same character size in, for example, a 9 × 5 matrix and a 7 × 5 matrix, and the number of memories can be reduced. The size of the characters to be imprinted can be changed less (similar to a conventional camera that can only shoot a full size screen).

In this technology, a camera capable of switching between a panoramic size and a full size has been described. However, a full-size screen can be obtained by arranging the photographic lens sideways and using the operation member as a character size selection knob. It is also possible to use a variable-size camera that can change the size of characters printed on the camera.

If the two-stage switching is performed in conjunction with the film feeding and the film rewinding, the film is moved to a different place (hence, two stages) at the time of winding and rewinding.
If the data stored at the time of film winding is printed in the reverse order when the film is rewound, double characters can be printed on one screen to perform high-density printing and recording.

Next, an embodiment of the present invention will be described with reference to FIGS. FIG. 4 is a perspective view of a main part of the camera, and FIG. 5 is a sectional view of the main part of the camera.

[0030]

4 and 5, reference numeral 1 denotes a camera body;
2 is an LED array for imprinting character information, 3 is a first imaging lens, 4 is a second imaging lens, 5 is a beam splitter, 6 is a mirror, 7 is a panorama selection knob, and 8 is the upper wing described above. Reference numeral 8a denotes a first lens light-shielding portion, 8b denotes a second lens light-shielding portion, 9 denotes a connecting member, and 10 denotes a lower wing which moves in a direction opposite to the upper wing 8 by the action of the connecting member 9. The connecting member 9 is supported by a shaft 9a, receives a force from the upper wing 8 with a first pin 9b, and drives a lower wing 10 with a second pin 9c.

In the state of the full size mode shown in FIG. 5, the first lens light shielding portion 8a is retracted from the front of the first imaging lens 3, and the second lens light shielding portion is located in front of the second imaging lens 4. 8b, and only the optical path for imprinting character information at the time of full-size imaging through the first imaging lens 3 is established.

That is, the light obtained by energizing the LED array 2 reflects about half of the light by the beam splitter 5 and is imaged on the film 11 by the first imaging lens 3 to form the character information. Imprinting is performed.

When the panorama mode is selected with the panorama selection knob 7, the first lens light shielding portion 8a comes in front of the first imaging lens 3 and the second lens light shielding portion 8b comes in front of the second imaging lens 4. Is retracted, and only the optical path for imprinting character information at the time of panorama size photographing is established.

That is, about half of the light from the LED array 2 is transmitted by the beam splitter 5, the direction is changed by the mirror 6, and the image is formed on the film 11 by the second imaging lens 4. I have.

The size of the image on the film 11 is
The distance a ₂ of the film 11 and the lens 4 and the LED array 2
The mirror 6 is copied to a size proportional to the height of a ₂ / b ₂ determined by the distance b _{2 to} a point (temporary light source) 2 ′ conjugate to the mirror 6. Although not shown, printing is performed at a certain interval that is an integral multiple of the output pulse ratio c / b of the film detection pulse plate for detecting the film feeding of the dot date camera, and a ₁ / b ₁ at full size. =
The ratio of E _{2 to} a ₂ / b ₂ = F at the time of panorama size is represented by F / E =
By setting c / b, similar characters can be imprinted on the film, and C / D can be selected electrically, and F / E can be selected optically, so that imprinted characters of a preferred size can be selected. It has become.

FIG. 6 shows an optical system of a conventional character information imprinting device of a camera, which includes an LED array 22 and a condensing lens 2.
3, a mirror 26. In the present invention, the second imaging lens 4, the beam splitter 5, and the first and second light shielding portions 8a and 8b provided on the upper wing 8 are added to the character information imprinting optical system of the conventional camera. With such a very simple configuration, it is possible to selectively print character information at two locations.

FIG. 7 shows a reference example of the present invention, in which 42 is an LED array, 45 is a first mirror, and 46 is a second mirror. In this reference technology example, the light is emitted from the LEDs in different directions, and the imprinting is performed, respectively, by utilizing the fact that the LED emits light with low directivity. 48a and 48b are first and second light shielding portions, respectively. In this case, since the first mirror 45 and the second mirror 46 are arranged apart from each other, there is a disadvantage that a large arrangement space is required in the camera. LED array 4
Since the light emitted obliquely from 2 is used, there is also a disadvantage that distortion or the like is likely to occur when it is necessary to imprint in a similar similar shape at each imprinting position like character information. In this regard, in the above-described embodiment, since only light emitted vertically downward from the LED array 2 is used,
It is possible to imprint character information and the like in a beautiful similar shape without distortion or the like.

FIG. 8 is also a reference example, in which a slightly oblique light is made incident on the first and second imaging lenses 63 and 64, also utilizing the fact that the directivity of the LED is small. Also in this example, distortion of character information or the like is likely to occur. (Correspondence between the invention and the embodiment) In the above embodiment, the LED array 2 in FIG. 5 is a light source according to the present invention, the beam splitter 5 is a spectral unit of the present invention, an optical path from the beam splitter 5 to the lens 3 and One of the optical paths from the beam splitter 5 to the lens 4 corresponds to the first optical path of the present invention, the other corresponds to the second optical path of the present invention, and the upper wing 8 and the lower wing 10 correspond to the light shielding means of the present invention. .

[0040]

As described above, according to the present invention,
Since the light source has splitting means for splitting light emitted in a predetermined direction from the light source into at least light guided to the first optical path and light guided to the second optical path, the light is emitted in different directions from the light source. Compared with a case where light is guided to the first optical path and the second optical path, respectively, data such as characters such as a date and a message can be recorded in a clear similar shape without distortion at both data recording positions. In addition, it is not necessary to arrange reflective members and the like at positions separated from each other as in the case where light emitted in different directions from the light source is guided to the first optical path and the second optical path, respectively. Can be smaller. Further, since the light-shielding means for shielding the other optical path when data is recorded using the light beam formed on one of the first and second optical paths, the data recording apparatus of the camera can switch the data recording position. Can be realized with a simple configuration.

[0041]

[0042]

[0043]

[0044]

[Brief description of the drawings]

FIG. 1 is a schematic vertical sectional view of a main part of an additional information imprinting device of a camera according to a first embodiment of the present invention.

FIG. 2 is a schematic perspective view of a main part of the camera of FIG. 1 as viewed from the front.

FIG. 3 shows an LED for changing the horizontal dimension of a character to be printed on a small screen from the horizontal dimension of a character to be printed on a large screen.
FIG. 4 is a diagram for explaining changing a pulse interval and a pulse width applied to an array.

FIG. 4 is a schematic perspective view of a main part of a camera according to a second embodiment of the present invention as viewed from the front.

FIG. 5 is a schematic vertical sectional view of a main part of the additional information imprinting device of the camera shown in FIG. 4;

FIG. 6 is a schematic diagram of a conventional character imprinting device of a camera.

FIG. 7 is a schematic vertical sectional view of a main part of an additional information imprinting device of a camera according to a third embodiment of the present invention.

FIG. 8 is a schematic vertical sectional view of a main part of an additional information imprinting apparatus for a camera according to a fourth embodiment of the present invention.

FIG. 9 is a diagram showing a partially modified embodiment of the embodiment shown in FIG. 8;

[Explanation of symbols]

(FIGS. 1 to 3) 1. Camera body 2. LED array 3. Projection lens for full size screen 4. Projection lens for panorama size screen 5. Panorama selection knob 6. Upper wing 7. Lower wing 8. Connection member (FIGS. 4 to 9) 1. Camera body 62, 42, 22, 2 LED array 63, 23, 3 First imaging lens 64, 4 Second
Imaging lens 5 ... beam splitter 26,6 ... mirror 7 ... panorama selection knob 8 ... upper wing 8a ... first lens light-shielding part 8b ... second lens light-shielding part 9 ... connecting member 10 ... lower wing 11 ... film 45 ... first 1st mirror 46 ... second mirror

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) G03B 17/24 G03B 17/28 G03B 37/00

Claims (1)

(57) [Claims] The light used for data recording is transmitted to a first light source.
A first optical path leading to the data recording position of
The light used for recording is different from the first data recording position.
Leading to a second data recording position,
A second optical path different from the optical path of
Light for guiding the emitted light to at least the first optical path
Splitting means for splitting the light into light guided to the second optical path;
And record data in each of the first and second optical paths.
Simultaneously forming the luminous flux used for
When recording data using a light beam formed in one of the two optical paths, a data recording apparatus for a camera, comprising: a light shielding means for shielding the other optical path.