JPH045638A - Video tape recorder integrated with camera - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a method for shortening which has recently been commercialized and has become a hot topic.

Conventional technology In recent years, camera-integrated VTRs have become more sophisticated, and products with new functions have been commercialized rapidly.Recently, camera-integrated VTRs with an electrical boat rate have become popular. It is becoming more and more popular. In addition, as image quality becomes higher, the accuracy of white balance has become important, and products have been commercialized that allow you to set white balance by attaching a cloudy lens cap to the front of the lens to improve accuracy.

An example of the conventional camera-integrated VTR mentioned above will be described below with reference to the drawings.

3 and 5 are a front view and a block diagram showing the circuit configuration of a conventional camera-integrated VTR.

As shown in Figure 3, the main body of a camera-integrated VTR includes an electronic viewfinder (hereinafter abbreviated as EVF) 2 for checking the subject to be photographed, a microphone 3 for inputting audio, and a lens for inputting video. 4, and a removable lens cap 5 for protecting the lens 4.

As shown in FIG. 4, the lens cap 5 is made of a cloudy material (indicated by a sloped portion).

In addition, as shown in FIG.
A timing generator 7 connected to the D input terminal 6 and a parabolic waveform generator 8 connected to the timing generator 7
, a clamp section 9 connected to this parabolic waveform generation section 8 , a vertical synchronization pulse (VD) input terminal IO, a timing generation section 11 connected to this VD input terminal 10 , and a A connected parabolic waveform generation section 12, a clamp section 13 connected to this parabolic waveform generation section 12, a mix section 14 to which signals from both clamp sections 9 and 13 are input, and a mix section 14 connected to this mix section 14. an input terminal 716 for inputting a video signal to the fade control 15, and an output terminal 17 connected to the fade control 15.
are provided.

The operation of the conventional camera-integrated VTR configured as described above will be explained below.

In Figure 3, the video input from lens 4 is a VTR.
The signal is photoelectrically converted within the main body 1, processed by a built-in video signal processing circuit, monitored on the EVF 2, and recorded on a magnetic tape to detect a desired subject.

At the time of recording, the lens cap 5 is attached, the white balance is adjusted, and live shooting is performed. Audio input from the microphone 3 in synchronization with this video input is processed by an audio signal processing circuit built into the VTR body 1 and recorded on a magnetic tape.

In the block diagram of the boat rate section shown in FIG. 5, the timing of the HD pulse input to the HD input terminal 6 is adjusted by a timing generator 7, and a parabolic waveform with a horizontal period is generated by a parabolic waveform generator 8. The sample is then clamped by the clamp section 9 and supplied to the mix section 14. On the other hand, the timing of the VD pulse input to the VD input terminal 10 is adjusted by the timing generator II.
Parabola M of vertical period in the parabola waveform generator 12
ff? is created, clamped by the clamp section 13, and supplied to the mix section 14, where it is mixed with a vertically synchronized parabolic signal and a horizontally periodic parabolic signal.

The fade control 15 inputs a processed video signal from the I7 lenses 4 or manually through the input terminal 16, and is controlled by the above-mentioned parabolic signal mixed with the horizontal and vertical cycles. As shown in Figure 6, the video signal is processed so that the periphery of the screen becomes white, and this processed signal is output from the output terminal 17 and T
The image is displayed on a VTR monitor, processed by a VTR signal processing circuit, and recorded and reproduced on a magnetic tape. Note that FIG. 6 is an overview diagram showing the portrait screen, and 3o
is a TV screen, 31 is a cloudy area with white muted surroundings,
32 is a subject.

Problems to be Solved by the Invention However, the above-mentioned configuration has the problem that the circuit configuration for obtaining the portrait processing function is complicated and cannot meet the demands for smaller size, lighter weight, and lower power consumption.

The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to provide a camera-integrated VTR that has a simple configuration and can support white balance settings and portraiture.

Means for Solving the Problems In order to solve the above problems, a camera-integrated VTR of the present invention is provided.
The first lens cap, which protects the camera lens, has a hole in the center and a cloudy white area around the hole, and a cloudy, removable lens is placed in the hole of the first lens cap. A second lens cap is provided.

Function In the above configuration, by attaching the first and second lens caps to the lens, the entire image becomes cloudy, and the white balance can be set. In addition, by attaching only the first lens cap to the lens, the cloudy part of the first lens cap becomes a white shadow around the periphery of the image, which masks the periphery of the image in white, making it very easy to create portrait images. .

Embodiment Hereinafter, a camera-integrated VTR according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 2 is a front view showing the configuration of a camera-integrated VTR according to an embodiment of the present invention. Components that are the same as those of the conventional VTR are given the same reference numerals, and a description thereof will be omitted.

In Fig. 2, 1 is the main body of a camera-integrated VTR, and this VTR main body 1 is not equipped with an electrical portrait function like conventional ones, but instead has a portrait-compatible lens cap 18 or a lens 4. It is detachably provided. Note that 21 is a string that connects the lens cap 18 and the VTR main body 1.

As shown in FIGS. 1(a) to (d), a lens cap 1
8 consists of a first lens cap 19 and a second lens cap 20. The first lens cap 19 has a circular hole 19a in the center, and the diagonally shaded area around this is made of a cloudy material. It is said to be 9b. The second lens cap 20 is also made of the same cloudy material as the first lens cap 19, and this second lens key T-tube 20 is similar to the first lens cap 19.
It can be freely attached to and detached from the hole 19a of the lens gap 19.

The operation of the camera-integrated VTR constructed as described above will be explained with reference to FIGS. 1(a) to (d) and FIG. 2. As shown in FIG. 2, when the camera-type VTR is not used, the first and second lens caps 19
．． 20 is attached to protect the lens 4, but both lens caps 19.
20 is installed and used. In this case, since both lens caps 19 and 20 are made of a cloudy material, the entire input image becomes cloudy and a good white balance can be obtained.

If you want to record a portrait image, move from the lens cap 18 attached to the lens 4 to the second lens cap 20.
In other words, by attaching only the first lens cap 19 to the lens 4, the image passing through the center hole 19a of the first lens cap 19 is signal-processed and output as before, while the peripheral The image passing through the cloudy part 19b becomes a white shadow, and it is possible to easily obtain a portrait screen in which a white shadow appears at the periphery as shown in FIG. 6 without performing conventional electrical signal processing.

Effects of the Invention As described above, according to the present invention, the lens cap includes a first lens cap having a hole in the center and having a cloudy color, and a lens cap having a cloudy color that is detachably attached to the hole of the first lens cap. With a simple configuration that is simply divided into a second lens cap and a second lens cap, it is possible to easily obtain a screen with accurate white balance and a portrait screen. It is possible to reduce the size, weight, and power consumption of an integrated camera having the following functions.

[Brief explanation of drawings]

1(a) and (b) are front and side views of a lens cap of a camera-integrated VTR according to an embodiment of the present invention, and FIG. 1(C) is a front view and a side view of a lens cap of a camera-integrated VTR according to an embodiment of the present invention. Figure 1(d) is a front view of the second lens cap of the same camera-integrated VTR, Figure 2 is a front view of the same camera-integrated VTR, and Figure 3 is a conventional camera. A front view of the integrated VTR, Figures 4(a) and 4(b) are front and side views of the lens cap of the conventional camera-integrated VTR, and Figure 5 shows the port of the conventional camera-integrated VTR. FIG. 6 is a block diagram showing the configuration of the rate section, and a general view showing the portrait screen of the camera-integrated VTR. 4... Lens, 18... Lens cap, 19...
・First lens cap, 19a...hole, +9b・
...Cloudy part, 20...Second lens cap. Agent Yoshi Morimoto Kotanzu Figure 4 Figure 2

Claims (1)

[Claims] 1. A first lens cap that protects the camera lens is provided with a hole in the center, and the area around this hole is made to be cloudy, and the first lens cap has a hole in it.
A camera-integrated videotape recorder equipped with a cloudy, removable second lens cap.