EP1706772A1 - Electronic spectacles, in particular night vision spectacles - Google Patents

Electronic spectacles, in particular night vision spectacles

Info

Publication number
EP1706772A1
EP1706772A1 EP20040803364 EP04803364A EP1706772A1 EP 1706772 A1 EP1706772 A1 EP 1706772A1 EP 20040803364 EP20040803364 EP 20040803364 EP 04803364 A EP04803364 A EP 04803364A EP 1706772 A1 EP1706772 A1 EP 1706772A1
Authority
EP
European Patent Office
Prior art keywords
characterized
electronic
signal
display means
image
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP20040803364
Other languages
German (de)
French (fr)
Inventor
Andre Draheim
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Durner Andreas
Original Assignee
Durner, Andreas
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority to DE10356024 priority Critical
Application filed by Durner, Andreas filed Critical Durner, Andreas
Priority to PCT/EP2004/013581 priority patent/WO2005054925A1/en
Publication of EP1706772A1 publication Critical patent/EP1706772A1/en
Application status is Ceased legal-status Critical

Links

Classifications

    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B23/00Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
    • G02B23/12Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification
    • G02B23/125Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices with means for image conversion or intensification head-mounted
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/01Head-up displays
    • G02B27/017Head mounted
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • G02B2027/0138Head-up displays characterised by optical features comprising image capture systems, e.g. camera
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/01Head-up displays
    • G02B27/0101Head-up displays characterised by optical features
    • G02B2027/014Head-up displays characterised by optical features comprising information/image processing systems
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
    • G02B27/00Other optical systems; Other optical apparatus
    • G02B27/01Head-up displays
    • G02B27/0149Head-up displays characterised by mechanical features
    • G02B2027/0154Head-up displays characterised by mechanical features with movable elements

Abstract

The invention relates to electronic spectacles, in particular night vision spectacles (10), comprising an electronic camera (26) provided with a lens system and a CCD-sensor, an image processing unit (48) which processes the image received by the camera, and an output signal for a display means (28, 39) associated with each eye, said display means being used to reproduce the image, and a reproduction lens system (32, 34) which is arranged downstream from each display means (28, 30). The invention is characterised in that the camera (26), the display means (28, 30) and the reproduction lens system (32, 34) are synchronised in relation to each other such that the image which can be detected by a user, when in use, corresponds to real conditions relating to the represented dimensions without limiting the direct vision of the user.

Description

 DESCRIPTION

Electronic glasses, in particular night vision goggles

The invention relates to an electronic goggles, in particular a night vision goggles, according to the specified in the preamble of claim 1 Art.

For police surveillance purposes, for military operations, but also for the sports and leisure sector, there is an increasing need for electronic glasses, especially night vision goggles. There is a demand for easy handling, low weight and the applicability even with a strong change in the light intensity of the area to be observed. With night vision goggles, activities such as during the day should be carried out without the use of additional light sources.

A night vision goggles is known for example from DE 38 06 940 AI. In such a night vision goggles, the residual light existing by the moonlight or the starlight is amplified by an image converter. These night vision goggles comprise a receiving optics, an image converter and display means for each eye. The display means are provided with an optical system, over which the image is reproduced. The image converter consists essentially of a cathode ray tube,

BESTATIGUNGSKOPIE which amplifies the rays of the residual light and reproduces the beams thus amplified via the display means and an eyepiece.

Such night vision goggles have the disadvantage that they require a high operating voltage. Together with the batteries and the cathode ray tube, they have a high weight. In addition, the picture quality is very limited. Details can not be recognized. Furthermore, their application is due to the low

Sensitivity - up to a maximum of 0.001 lux of residual light without additional illumination, which corresponds to a residual light amplification of 30,000 to 40,000, severely limited. In addition, in the case of a strong change in brightness, for example due to a headlight, the user of the glasses is dazzled and thus unable to act.

Furthermore, DE 197 24 140 C2 discloses a generic electric spectacles, in particular night vision goggles, which comprises an electronic camera with an imaging optics and a CCD sensor. In addition, this electric goggles has an image processing unit which processes the image taken by the camera and an output signal for each

An eye associated display means with a playback optics for playback of the image provides. However, these glasses are always operated in conjunction with an infrared light source to improve the night vision of night vision goggles. For this purpose, we pulsed the infrared light source in order to achieve the highest possible efficiency and low power consumption. In addition, a sensor is provided which depends on the low-light intensity controls the intensity of the infrared light.

This embodiment suffers from the relatively high power consumption, resulting in a large battery requirement with high weight or a short service life. In addition, it is disadvantageous, especially in the military combat mission at night, that the user of these night vision goggles is easily recognizable by the infrared light for the enemy with the help of appropriate glasses. This makes the user an easily ascertainable target and is therefore subject to a high risk.

In addition, there is the problem with all known glasses that an exact representation of the environment under consideration does not occur. The user therefore has great difficulty to orient themselves and move in the field with such glasses at night. Exact distance estimation and spatial vision is not possible with the known electric spectacles or at least only to a very limited extent.

The invention is therefore based on the object to form an electric spectacles according to the type specified in the preamble of claim 1, such that while avoiding the disadvantages mentioned an optimized for a variety of applications electric eyeglasses is created.

This object is solved by the characterizing features of claim 1 in conjunction with its preamble features. According to the invention, the camera, the display means and the playback optics are coordinated so that the user-perceivable image in use corresponds to the dimensions shown in the real conditions with full direct view of the user. This makes it possible for the user to perform complicated manipulations when using the spectacles, since the image recognized by him corresponds to the real dimensions and conditions. In addition, the effect of at least one virtual spatial image arises, so that an orientation and distance estimation is easier.

According to one embodiment of the invention, the central axis of the display means, the optical axis of the playback optics and the respective associated eye axes of the user in a basic position of the user's eyes - straight ahead - are aligned concentrically to each other. This ensures that the image corresponds to the real size ratios with simple effort.

In order to be able to compensate in particular for visual impairments, the respective reproduction optics of the display means are adjustable relative to the display means along the optical axis. In particular, the adjustability is formed independently of the adjustability of the reproduction optics of the other display means. A sharp rendition for the user in both eyes is thereby ensured and individual visual weaknesses compensated. In order to optimize the spatial vision, two cameras and two image processing units are provided for each display means, which are synchronized in time with respect to the processing steps. Preferably, the optical axes of the camera are concentric with the user's eye axes in the basic position. With simple means, the exact spatial reproduction is achieved.

According to one embodiment of the invention, the display means are arranged in a fixed support and slidably mounted laterally for alignment with the eye axes in the carrier, wherein the carrier is fixedly arranged in the spectacle frame. This ensures that the image is reproduced according to the reality and in the corresponding size ratio and is not distorted by displacement of the components relative to one another within the arrangement.

Therefore, the receiving optics and the image processing unit are arranged in the carrier, so that the solid support ensures a predetermined assignment of all disposed on the carrier parts to each other.

For a realistic representation of the image, the aforementioned optical features are advantageous, but also the following electronics-related features lead to an improvement of a more realistic representation.

In particular, the camera and the image processing unit are designed so that the user-recordable image can be displayed in real time. As a result, not only the type of presentation but also the speed of the representation of reality approximates to a great extent.

In order to obtain good image quality in the night vision field, the camera has a CCD sensor for the night vision range with a sensitivity for a wavelength of 500 to 1200 nm. As a result, the range of application is considerably expanded, in particular into the high infrared range.

According to one embodiment of the invention, the camera is designed for a residual light of less than 0.001 lux, in particular 0.0002 lux without additional illumination.

To improve the image quality, the CCD sensor is provided with an image resolution of at least 790 × 590.

Since the image quality is much higher in black and white representations, the display means is designed for black and white representations, in particular for displaying 256 shades of gray.

The image quality can be further improved by the image processing unit has a digitized amplifier precursor, which frees the signal coming from the camera of noise and noise components, especially in the high infrared range - wavelength of 650 to 1200 nm. By way of example, the amplifier pre-stage is followed by a digital-to-analog converter, so that the signal can then be further processed as an analog signal with a standard level of 1 Vss (voltspeed-peak = PAL level).

In this case, the image processing unit preferably has two series-connected analog amplifier stages and a control voltage circuit which calibrates the amplifier stages to zero when each image pixel is read from the CCD sensor of the camera, for example line by line, in order to ensure clean signal processing and reading guarantee. In this case, the noise components are further suppressed.

The amplifier stages are provided with a signal amplification of more than 25 decibels, in particular 52 decibels, compared to the standard level.

Furthermore, it is advantageous if the amplifier stages have an external circuit, which are optimized in their design and scaling the signal waveform of the gain and the transmission for image information in the black and white area.

In particular, a control for the range of 5 to 52 decibels is associated with the amplifier stages, which control the amplifiers with a rapid change in brightness of the surroundings in such a way that no appreciable overexposure of the picture occurs. In particular, the control is formed manually switchable. This ensures that unrestricted vision is maintained under all lighting conditions. In addition, it may be advantageous for certain applications to turn off this control, so that the user will notice the change in lighting conditions.

According to one embodiment of the invention, the amplifier stages are associated with a manually operable control, via which the sensitivity of the amplifier is set by the user. As a result, adaptation to the lighting conditions and / or to the respective intended use is made possible by the user.

Preferably, the amplifier stages include a sample and hold circuit via a field effect transistor for clamping the signal (Clamp), which are controlled in dependence on the incoming signal time-dependent, in order to achieve a high sensitivity and harmony of the amplifier stages.

To improve the image quality, the image noise and the false color components are thereby at least suppressed or eliminated if the digital / analog converter at least two active signal filters in the form of a bandpass filter are connected downstream.

In this case, in particular the active signal filters, a signal buffer stage with a gain, in particular more than two, compared to the normal level downstream, so that losses from the previous signal processing and signal management can be compensated and compensated. According to one embodiment of the invention, the display means is preceded by a band-pass filter and a signal switch for impedance matching in order to ensure a loss-free adaptation to the subsequent display electronics.

In particular, the signal splitter interacts with signal processing, which enables phase matching and synchronicity of the displayed images in the display center.

The display means is preferably formed by an AMLCD screen or a FLLCD screen.

The electronic glasses are connected to a voltage source, in particular a battery, in order to be able to act independently of location.

In this case, the battery is preferably arranged in a, in particular separate, battery housing which can be fastened to the body of a user.

According to one embodiment of the invention, the display means has an on-screen display for additional information regarding the reproduced image. For example, information about the user's job, the recognizable area, and the like can be displayed.

In particular, a transmitting and / or receiving interface is provided, with which the user-visible images can be transmitted. This makes it possible, for example, in a command the user's guide officer also receives the user's pictures and can issue appropriate instructions to the user via the on-screen display.

Further advantages, features and applications of the present invention will become apparent from the following description taken in conjunction with the embodiments illustrated in the drawings.

The invention will be described in more detail below with reference to the embodiments illustrated in the drawings. In the description, in the claims, the abstract and in the drawing, the terms and associated reference numerals used in the list of reference numerals recited below are used. In the drawing show:

1 is a perspective view of a night vision glasses according to an embodiment of the invention from the top side rear;

FIG. 2 is a perspective view of the night-vision goggles of FIG. 1 from the front; FIG.

Fig. 3 is a perspective view of the use of the night vision goggles of Figure 2, but without outer wall.

Fig. 4 is a perspective view of the insert of the night vision goggles of Fig. 1, but without the rear wall; FIG. 5 is a perspective view of a detail of FIG. 4 showing the adjustability of the display optics and display; and FIG

Fig. 6 is a schematic block diagram showing the signal processing.

FIGS. 1 to 4 show, in different representations in one embodiment, a night-vision spectacle 10 according to the invention. The night vision goggles 10 consists of a spectacle frame 12 to which a fastening strap 16 engages via a closure 14. The spectacle frame 12 is designed in the manner of a protective / ski goggles and has padding 18 on its side facing the user's head.

In the spectacle frame 12, an insert 20 is introduced, which is covered on its side facing away from the user's head with a protective wall 22a and its side facing the user's head with a protective wall 22b. The insert 20 is fixedly arranged in the spectacle frame 12.

The insert 20 is shown in detail in Figures 3 and 4 and is provided with a support plate 24 on which all optical and electrical components are fixed.

On the support plate 24 is a camera 26 and two

Displays 28 - left - and 30 - right - arranged. In addition, each have a reproduction optics 32 and 34 a Display 28 or 30 assigned to the support plate 24 stored.

The protective wall 22b has recesses 3βb and 36c for the reproduction optics and the protective wall 22a recesses 36a for camera 26, see Figures 1 and 2.

At the top of the spectacle frame 12 ventilation openings 38 are provided, which are covered by a permeable film 40. This ensures that the heat developed by the electronics can escape via the ventilation openings 38 and the permeable film 40 from inside the night-vision goggles 10.

The camera 26, the displays 28 and 30 and the reproduction optics 32 and 34 are coordinated so that the image recordable by the user during use corresponds to the real conditions with an unrestricted direct view of the user with regard to the dimensions shown. For this purpose, the playback optics 32 with the display 28 and the playback optics 34 are coupled to the display 30 so that they are laterally displaceable in the support plate 24 together. About the lateral displacement of the eye axis distance, which may be different from user to user, set so that the central axis of the displays 28 and 30, the optical axis of the playback optics 32 and 34 and the respective associated eyeballs of the user in a basic position of the Eyes of the user - looking straight ahead - are concentric with each other. For this purpose, an adjusting device 42 a and 42 b is provided on each side of the insert 20 of the night vision goggles 10. In addition, also poor eyesight to compensate the individual eyes of the user, a further adjustment device 44a and 44b for the corresponding playback optics 32 and 34 is provided by means of the playback optics 32, 34 along its optical axis relative to the display 28, 30 is displaceable. The adjustment of the reproduction optics 32 and 34 via the further adjustment device 44a or 44b takes place in each case independently of the reproduction optics 34 or 32 of the other display 30, 28.

The non-viewing goggle 10 further includes residual light sensors 46a and 46b which cooperate with a control. This will be discussed below in connection with FIG. 6.

The camera 26 cooperates with an image processing unit 48. The camera 26 and the image processing unit 48 are designed in such a way that the image which can be detected by the user when using the night-vision goggles is displayed in real time. The camera 26 has a CCD sensor for the night vision range with a sensitivity for a wavelength of 500 to 1200 nm and is designed for a residual light of less than 0.001 lux, in particular 0.0002 lux without additional lighting. The CCD sensor further has an image resolution of at least 790 x 590.

The camera 26 is provided with a recording optics, not shown here in detail, with fixed or adjustable lenses.

The image processing unit 48 cooperates with an amplifier control 50, which via an operating element 52 is switched on and off. The image processing unit 48 is provided with a digitized amplifier precursor, which frees the signal coming from the camera 26 from noise and interference components, in particular in the near to the high infrared range - wavelength of 650 to 1200 nm. The amplifier precursor is a digital / analogue After that, the signal is connected downstream so that the signal can then be further processed as an analog signal with a standard level of 1 Vpp (voltspeed - peak = PAL level). Thereafter, the signal in the image processing unit 48 passes through two series-connected analog amplifier stages. The amplifier stages have a control voltage, which the amplifier stages on reading each image pixel - for example line by line - from the CCD sensor of the camera 26 to "zero" calibrate to ensure a clean signal processing and readout. This also noise components are suppressed. The amplifier stages are provided with a signal amplification of more than 25 decibels, in particular 52 decibels compared to the standard level.

The amplifier stages are provided with an external circuitry, which are optimized in their design and scaling the waveform of the amplification and transmission for image information black and white. The amplifier stages are assigned a regulation for the range of 5 to 52 decibels. This regulation cooperates with the remaining sensors 46a and 46b in such a way that the amplifier stages are adapted according to the intensity of the residual light. The user receives an independent of the residual light conditions equally good image quality. The amplifier stages include a sample and hold circuit via a field effect transistor for clamping the signal, which are time-dependent controlled as a function of the incoming signal in order to achieve a high sensitivity and harmony of the amplifier stages. The image processing unit 48 and thus the digital / analog converter of the image processing unit 48 are followed by at least two active signal filters in the form of a bandpass filter 54 which at least suppress or eliminate the image noise and the false color components in order to improve the image quality. The active signal filter 54 is followed by a signal buffer stage 56 having a gain, in particular more than two, compared to the normal level, so that losses from the previous signal processing and signal management can be compensated and compensated.

The displays 28 and 30 are preceded by a further bandpass filter 58 and a signal switch 60 for impedance matching in order to ensure a loss-free adaptation to the subsequent display electronics. In this case, the signal splitter 60 cooperates with a signal processing, the phase equality and synchronicity of the images shown in the displays 28 and 30 allows light.

The display 28, 30 can be an AMLCD or FLLCD screen in liquid crystal technology or ferrolytic technology, which is optimized for the illustrations in black and white.

The night vision goggles 10 are connected to a voltage source, namely a battery 62. The battery 62 is arranged in a separate battery housing that is attachable to the body of a user. Such battery cases are known, so they need not be described in detail here.

The night vision goggles 10 are provided with a transmission interface 64 and a reception interface 66 as well as with a serial interface 68. The transmission interface 64 cooperates with the signal buffer stage 56 and the reception interface 66 with another signal buffering 70 for inputs and outputs.

This signal buffer 70 cooperates with a video driver 72 comprising the bandpass filter 58. Via an operating element 74, the contrast and the brightness of the display can be adjusted via the video driver.

Via the serial interface 68, the data for an OSD display in the screens 28 and 30 can be played. For this purpose, the serial interface 68 interacts with an OSD text generator 76. A card reader 78 identifies the user with a corresponding selection of the OSD data for the assigned user. In addition, an OSD data generator 80 may be provided for the internal data insertion, which cooperates with a corresponding measurement data acquisition and corresponding sensors 84, 86 and 88. These may be sensors for the battery voltage, a light sensor, a gas sensor, a time recording and the like.

The battery monitoring with a corresponding sensor 84 may also consist of two LEDs, one as Operation monitoring with brightness control, the other as overvoltage detector with warning signal. Optionally, an audible warning buzzer may also be provided. The serial interface 68 may interact with a GPS system, a wireless LAN system, and the like.

The night vision goggles 10 according to the invention expand the visibility in the dark. In particular, the night vision goggles 10 can also be used for the leisure sector. As a result, sporting activities are possible in the dark. A special suitability is also for cyclists watch, especially mountain bikers or runners in the area. Your viewing options are now independent of a lighting device. About the fastening strap 16, the night vision goggles 10 is firmly fixed to the head. As a result, the night vision goggles 10 is easily carried by head movements.

The shape of the spectacle frame 12 is adapted to a head, so that no disturbing light influences from the outside get inside.

The invention is characterized by its simple construction and its realistic representation of the observation area through the image. LIST OF REFERENCE NUMBERS

Night Vision Goggles Glasses Frame Fasteners Straps Pads Einsatza Protective Screen - Front Protection Panel - Rear Support Panel Camera Display - Left Display - Right Playback - Left Playback - Right - Camera Recesser Recess Recess - Linksc Recessed Reproduction - Right Vents Foliea Adjustment Device - Rightb Adjustment Device - on the left another adjusting device - on the right side further adjusting device - on the left a Residual light sensor - rechtsb Residual light sensor - left Image processing unit Amplifier control Operating element Bandpass filter Signal buffer stage Bandpass filter and Viedeodriver signal switch Battery Transmitting interface Receiving interface Serial data interface Further signal buffering for inputs and outputs Video driver and signal filter Control element OSD Text generator Card reader OSD Data generator Data acquisition sensor Sensor Sensor

Claims

claims
1. Electronic goggles, in particular night vision goggles (10), comprising an electronic camera (26) with a recording optics and a CCD sensor, an image processing unit (48) which processes the image taken by the camera and an output signal for each eye associated playback means (32, 34) which is connected downstream of each display means (28, 30, characterized in that the camera (26), the display means (28, 30) and the display optics (32, 34) are matched to one another in such a way that the image detectable by the user during use corresponds to the real conditions with unrestricted direct view of the user with regard to the dimensions shown.
2. Electronic goggles according to claim 1, characterized in that the central axis of the display means (28, 30), the optical axis of the playback optics (32, 34) and the respectively associated eye axes of the user in a basic position of the user's eyes - straighter Looking ahead ne - are aligned concentrically with each other.
3. Electronic spectacles according to claim 1 or 2, characterized in that the respective playback optics (32, 34) of the display means (28, 30) relative to the display means (28, 30) along the optical axis is adjustable, in particular independent of the playback optics (32, 34) of the other display means (28, 30) to ensure crisp reproduction for the user.
4. Electronic goggles according to one of the preceding claims, characterized in that two cameras (26) and two image processing units (48) are provided for each display means (28, 30), which are synchronized in time with respect to the processing steps.
5. Electronic goggles according to claim 4, characterized in that the optical axes of the camera (26) are concentric with the eye axes of the user in the home position.
6. Electronic spectacles according to one of the preceding claims, characterized in that the display means (28, 30) arranged in a fixed support (24) and laterally for alignment with the eye axes slidably in the carrier (24) are stored, the said Carrier (24) is fixedly arranged in the spectacle frame (12).
7. Electronic goggles according to claim 6, characterized in that the receiving optics and the image processing unit (48) are arranged in the carrier (24), so that the solid support (24) a predetermined assignment of all on the carrier (24) arranged parts to each other guaranteed.
8. Electronic goggles according to one of the preceding claims, characterized in that the camera (26) and the image processing unit (48) is designed so that the detectable by the user in use image is displayed in real time.
9. Electronic spectacles according to one of the preceding claims, characterized in that the camera (26) has a CCD sensor for the night vision range with a sensitivity for a wavelength of 500 to 1200 nm.
10. Electronic spectacles according to claim 8 or 9, characterized in that the camera (26) is designed for a residual light of less than 0.001 lux, in particular 0.0002 lux without additional illumination.
11. Electronic spectacles according to one of the preceding claims, characterized in that the CCD sensor has an image resolution of at least 790 x 590.
12. Electronic spectacles according to one of the preceding claims, characterized in that the display means (28, 30) is designed for black and white representations, in particular for the display of 256 gray levels.
13. Electronic spectacles according to one of the preceding claims, characterized in that the image processing unit has a digitized amplifier precursor, which frees the signal coming from the camera (26) of noise and interference components, in particular in the near infrared range - wavelength of 650 to 1200 nm.
14. Electronic spectacles according to claim 13, characterized in that the amplifier precursor is followed by a digital / analog converter, so that the signal thereafter as an analog signal with a standard level of 1 Vpp (voltspeed - peak = PAL level) is further processed.
15. Electronic spectacles according to one of the preceding claims, characterized in that the image processing unit (48) has two series-connected analog amplifier stages and a circuit for a control voltage, the amplifier stages when reading each image pixel - for example, line by line - from the CCD Camera sensor set to zero to ensure proper signal processing and readout - noise is suppressed.
16. Electronic spectacles according to claim 15, characterized in that the amplifier stages with a signal gain of more than 25 decibels, in particular 52 decibels, compared to the standard level.
17. Electronic spectacles according to claim 15 or 16, characterized in that the amplifier stages have an external wiring, which are optimized in their design and scaling the signal waveform of the gain and the transmission of image information in the black and white area.
18. Electronic spectacles according to one of claims 15 to 17, characterized in that the amplifier stages are assigned a regulation for the range of 5 to 52 decibels, which control the amplifiers with a rapid change in brightness of the surroundings in such a way that no noticeable overexposure of the image occurs, in particular, the control is formed manually switchable.
19. Electronic spectacles according to one of claims 15 to 18, characterized in that the amplifier stages is associated with a manually operable control, via which the sensitivity of the amplifier is adjusted by the user to adapt to the lighting conditions and / or the respective application to enable the user.
20. Electronic goggles according to one of claims 15 to 19, characterized in that the amplifier stages a sample and hold circuit via a field effect transistor for clamping the signal (Clamp), which are controlled in dependence on the incoming signal time-dependent, in order to achieve a high sensitivity and harmony of the amplifier stages.
21. Electronic spectacles according to one of claims 14 to 20, characterized in that the digital / analog converter at least two active signal filters in the form of a bandpass filter (54) are connected downstream, the image noise and the false color components to improve the image quality at least suppress or eliminate.
22. Electronic spectacles according to claim 21, characterized in that the active signal filters (54) a signal buffer stage (56) having a gain, in particular more than two, compared to the normal level downstream, so that losses from the previous Signalverarbei- device and signal management compensated and be balanced.
23. Electronic spectacles according to one of the preceding claims, characterized in that the display means a band-pass filter (58) and a signal splitter (66) is connected upstream for impedance matching in order to ensure a lossless adaptation to the subsequent display electronics.
24. Electronic spectacles according to one of the preceding claims, characterized in that the signal splitter (60) with a signal processing to cooperates, the phase equality and synchronicity of the images displayed in the display means allows.
25. Electronic goggles according to one of the preceding claims, characterized in that the display means (28, 30) by an AMLCD screen or a FLLCD screen is formed.
26. Electronic goggles according to one of the preceding claims, characterized by a connection to a voltage source, in particular a battery (62).
27. Electronic goggles according to claim 26, characterized in that the battery (62) is arranged in a, in particular separate, battery housing which is fastened to the body of a user.
28. Electronic spectacles according to one of the preceding claims, characterized in that the display means (28, 30) has an on-screen display for in view of the reproduced image additional information.
29. Electronic spectacles according to one of the preceding claims, characterized in that a transmitting and / or receiving interface (64, 66, 68) is provided.
EP20040803364 2003-12-01 2004-11-30 Electronic spectacles, in particular night vision spectacles Ceased EP1706772A1 (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE10356024 2003-12-01
PCT/EP2004/013581 WO2005054925A1 (en) 2003-12-01 2004-11-30 Electronic spectacles, in particular night vision spectacles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP10012427A EP2315066A1 (en) 2003-12-01 2004-11-30 Electronic goggles, in particular night vision goggles

Publications (1)

Publication Number Publication Date
EP1706772A1 true EP1706772A1 (en) 2006-10-04

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EP20040803364 Ceased EP1706772A1 (en) 2003-12-01 2004-11-30 Electronic spectacles, in particular night vision spectacles
EP10012427A Withdrawn EP2315066A1 (en) 2003-12-01 2004-11-30 Electronic goggles, in particular night vision goggles

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Application Number Title Priority Date Filing Date
EP10012427A Withdrawn EP2315066A1 (en) 2003-12-01 2004-11-30 Electronic goggles, in particular night vision goggles

Country Status (3)

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US (1) US7576919B2 (en)
EP (2) EP1706772A1 (en)
WO (1) WO2005054925A1 (en)

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US20120105740A1 (en) 2000-06-02 2012-05-03 Oakley, Inc. Eyewear with detachable adjustable electronics module
US7013009B2 (en) 2001-06-21 2006-03-14 Oakley, Inc. Eyeglasses with wireless communication features
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