WO1994010602A2 - Gerät für die optische unterwasser-beobachtung - Google Patents
Gerät für die optische unterwasser-beobachtung Download PDFInfo
- Publication number
- WO1994010602A2 WO1994010602A2 PCT/AT1993/000161 AT9300161W WO9410602A2 WO 1994010602 A2 WO1994010602 A2 WO 1994010602A2 AT 9300161 W AT9300161 W AT 9300161W WO 9410602 A2 WO9410602 A2 WO 9410602A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- carrier body
- radiation
- recesses
- underwater
- disc
- 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
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B17/00—Details of cameras or camera bodies; Accessories therefor
- G03B17/02—Bodies
- G03B17/08—Waterproof bodies or housings
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B37/00—Panoramic or wide-screen photography; Photographing extended surfaces, e.g. for surveying; Photographing internal surfaces, e.g. of pipe
- G03B37/005—Photographing internal surfaces, e.g. of pipe
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/50—Constructional details
- H04N23/51—Housings
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/56—Cameras or camera modules comprising electronic image sensors; Control thereof provided with illuminating means
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/10—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths
- H04N23/11—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from different wavelengths for generating image signals from visible and infrared light wavelengths
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N23/00—Cameras or camera modules comprising electronic image sensors; Control thereof
- H04N23/20—Cameras or camera modules comprising electronic image sensors; Control thereof for generating image signals from infrared radiation only
Definitions
- DE-AS 25 54 061 which has an underwater pocket camera with separate, arranged in the front wall of a five-walled housing, recording and optical elements, such as lens and flash device, counter window, exposure window and the like. the like discloses in which housing, together with the sixth wall - that is to say the rear wall - the remaining elements of the camera with the film chambers can be inserted and connected to the same in a sealing manner.
- US Pat. No. 4,714,333 is concerned with a simple and effective construction for windows ensuring fluid density for optical and camera-technical functions of underwater cameras, which essentially consists in the fact that the observation, which is transparent to electromagnetic waves, in particular the light area, is essentially designed as a disk ⁇ window with a, preferably centrally arranged, zone for the passage of the waves or the optical information surrounding, essentially annular zone of its inside is bound to a likewise essentially annular support surface in a fluid-tight manner.
- the respective status of the environment and its endangerment are manifested not only in the occurrence of increased concentrations of pollutants in the hydro-, atmospheric, geo- and biosphere, but in particular in sensitive changes in the species richness of larger organisms, in the suppression or increase of micro-organisms, the pla ⁇ ktones, Biosulphides and the like, changes in the food chain, biotope disorders, etc.
- larger organisms in the hydrosphere such as, for example Aquatic plants and fish are frequently changes in the optophysical properties of their surfaces, such as their absorption, reflection, scattering, fluorescence and fluorescence properties and the like. to be determined, whereby observations in the "visible" range often have significantly less relevant information content than those in the near and "near" IR or in the UV range.
- the object of the invention is to create an underwater bioscope which overcomes the disadvantages of conventional underwater cameras and the like mentioned above. with conventional image field illumination systems in order to enable the observation of phenomena of the underwater world and biosphere, which have not previously been made accessible to optical information, with the exclusion of image information-disrupting effects. In this way, robust and compact construction is intended to promote and support access to areas previously impossible to detect.
- the invention thus relates to a device for optical underwater observation, monitoring and / or investigation, in particular underwater recording device, camera, viewing device or glasses or the like.
- a device for optical underwater observation, monitoring and / or investigation in particular underwater recording device, camera, viewing device or glasses or the like.
- the observation window which is continuous for electromagnetic waves, in particular the light area, and is essentially in the form of a disc with a zone, preferably arranged centrally, for the passage of the waves or the optical information
- agebu ⁇ de ⁇ is essentially ring-shaped zone of its inside to a substantially ring-shaped support surface in a fluid-tight manner, the essential features of which are that the observation window with an electromagnetic Waves of at least one broad frequency band of the IR, VIS and / or UV optics spectral range are bidirectionally transparent and have a plurality of
- the novel construction and light guidance of the underwater bioscope according to the invention with an optical viewing window module which combines the functions of light immission and object field illumination emission facilitates a miniaturized compact construction which is becoming increasingly important today.
- the new observation devices can be installed in geological faults and e.g.
- the fact that the front screen is formed on a separate carrier body, which does not have to be identical to the front of the housing, and is connected to it, increases the flexibility of the new device, particularly with regard to production and repair, including real system replacement.
- the arrangement of light emission elements in the immediate vicinity of the input window for the optical information is particularly important, as a result of which the spectral band-selective radiation of — and thus illumination of the examination field with — light of an object that is precisely to be observed and its specific scattering, refraction, , Reflection, diffraction properties and the like. selected selected frequency band is enabled.
- the main advantage here is that all the objects that cannot be optically activated by the spectral band emitted in each case remain transparent and remain dark and do not interfere with the specifically selected image information desired.
- the novel arrangement of the specific light-emitting elements which take the place of a previously conventional headlight makes it possible to Radiation of one of several, very sharp spectral bands of mutually often very different frequencies in the IR to UV range from practically a uniform beam direction, with a frequency change, for example even automatically, by remote control technology or the like. by simply switching a respective group of emission elements of the optics module on and off, which is particularly suitable for use in operating rooms that are difficult to access and in particular for multichannel examinations, long-term monitoring and the like. is of particular advantage.
- the change in the emitted frequency band which is specific to the object being observed - the intensity of the light emission can also be set precisely and appropriately for the object - in each case precisely matched to the conditions and an optics of the recording device that is in use.
- a particular advantage of the combination of the light source carrier body and the pane, which at least bears against it, is the mechanical support of the pane which is given as a result compared to the often high water pressure which acts on it, which means that the installation of panes of a much smaller layer thickness than previously has the advantage of being reduced Absorption of both the emitted light and the image information signals enables.
- a substantial reduction in the reflections or total reflections within the viewing and illuminating pane is sought and achieved, which is particularly important since a plurality of defined sources are used each sharp edges emit their light and thus prevent the occurrence of Huygens rings and the like. is of particular importance.
- the preferably provided connection reduces the risk of occurrence of optical defects at the interface of the pane and carrier and is practically a kind of gluing.
- a light absorption coating as it is encompassed by the sensor, is particularly preferred.
- a procedure can be selected which consists in that a lacquer filled with the respectively selected, often ultradisperse, absorption pigment, e.g. about a kind of matt varnish, applied and the lens is pressed onto it while still wet.
- the preferably provided, integral bond between the pane and the support body brings, in addition to opto-technical advantages, further mechanical stabilization in the manner of a sandwich construction, with which even smaller pane thickness or overall slimmer construction of the optics module can be achieved.
- the viewing and illumination pane is advantageously formed with one of the materials according to Claim 4, which is also transparent in broad areas of the “nonvisible” spectrum, the light absorption coefficient being low per se, but at the same time mechanically less stable materials can also be considered are, since the pressure absorption function essential for underwater devices in the novel, integrated optics module takes place primarily through the support body.
- a reflection-reducing element is also provided on the outer surface of the viewing pane in a configuration according to claim 5, which particularly originates in its input areas for optical signals before being influenced by scattering and reflection radiation which "bundles" within the pane from the light-emitting elements, by "sucking" residual radiation still getting there by switching off further total reflection into this external reflection-reducing element and practically annihilating it there by further refraction and absorption.
- n s r u c h 6 causes at least two refractions from the plumb line that residual radiation within the pane is deflected away from the image information input area.
- the radiation input region of the Disc surrounding, in particular actually ring-shaped element for the desired elimination of disturbing radiation residues may be sufficient.
- an embodiment of the optics module according to Claim 9 is of particular advantage.
- the arrangement of the light emission elements in the optics module can advantageously be provided in one of the ways described by A n s test 14 or 15. If the subjects of the two claims 14 and 15 just cited generally relate to the geometrical arrangement of the light emission elements, the appendices 16 to 18 outline application forms and arrangements of the light emission elements of the new optics module that are specific to the application and task and are aimed at illumination topographies.
- the use of the IR range has often proven to be particularly specific, especially for underwater research in the field of biology and microbiotopes, which underscores the advantages that can be achieved with a form of training in accordance with 19.
- the surfaces of different fish species can have completely different reflection properties, which is used for their specific observation.
- a preferred embodiment according to Claim 21, and in particular in combination with the above-mentioned training type of the support body according to claims 10 to 12, is entirely in connection with the development of heat that obscures observation and is therefore to be suppressed.
- each of them emits a radiation cone with a larger or smaller opening angle, which is at a relatively short distance from the disk with the radiation cone one of the neighboring lighting elements overlaps what, for example can cause problems with light coherence.
- an arrangement according to claim 22 is advantageous, with disruptive reflections being able to be switched off in the case of the arrangement of the “intermediate medium”.
- a preferred, albeit technically complicated embodiment according to A n s r u c h 23 enables the above-mentioned shape of the radiation cones of the emission elements to be controlled by their local displacement.
- high-resolution image information reception devices are preferably an essential component of the device according to the invention.
- the invention furthermore relates to a device which can be used directly online and live by a diver and which in each case optimizes the frequency band selection, e.g. image information obtained in the IR and / or UV range from the observation field is converted into directly visible information.
- image information obtained in the IR and / or UV range from the observation field is converted into directly visible information.
- Another object of the invention is an optics module according to A n sp r u c h 26, which, because of its interchangeability, enables for the first time a highly flexible adaptability of underwater observation devices to the respective specific examination situation and tasks.
- FIGS. 1 to 1 c show an underwater observation device according to the invention in a sectional view and its optics module from the front and in section
- FIG. 2 shows a basic construction and functional diagram of the new device
- FIG. 3 shows a basic diagram Construction diagram of an underwater direct view device for the "nonvisible" area of the optics spectrum.
- a pressure-resistant, here cylindrical housing 100 has an approximately disk-shaped optical module 120 on its front, the construction of which can be seen in detail from FIGS. 1b and 1c.
- the module 120 essentially consists of a broadband-transparent pane 10, which lies flat against a carrier body 20 with a central opening or recess 23 for the input of optical signals or information from the observation field located in front of the recess 23 in the water body outside the pane 10 .
- the pane 10 On the outside 12, the pane 10 carries a ring which surrounds the image information input area Reflection-reducing element 11.
- the electronics 55 in turn control the image sensor 50.
- the control and control unit 60 for switching and controlling the light emission elements is also located in the carrier 20 within the housing 100.
- Image sensor 50, sensor control electronics 55 and light emitter Control 60 are all connected to an external power supply 556, as well as with an also external unit 655 for controlling the radiation geometry, the spectral band and the radiation intensity of the light emitters, as well as for controlling and monitoring the video sensor sensitivity and the video electronics 50 connected.
- FIGS. 1b and 1c show in front and sectional view the optics module 120, which is an essential component of the invention, with a broadband absorption coating 21 of the carrier body 20 - which is designed as a cooling body with cooling fins 22 - lying flat Bound "two-way transparent” viewing and lighting disk 10.
- the disk 10 On its outside 12, the disk 10 enters its "central" axle area "m" for the input of the image information, approximately a ring-like reflection-reducing element 11 with two layers of materials with increasing optical density, e.g. made of heavy metal glass.
- This element 12 "sucks" within the pane 10 as a result of total reflection, vagabonding residual rays that ultimately originate from the light emitters, breaks them off in the direction of the solder and thus makes them harmless.
- the area "m" of the pane 10 is thus substantially completely free of image-disturbing reflections.
- FIG. 1b shows the geometric arrangement of the recesses 24 shown in FIG. 1c in the carrier body 20 or the light emission elements 401, 402, 403, 40n arranged therein in concentric circles in the area "u" between the axial area "" and the "edge" of the housing 100 can be seen.
- all emitters 401 to 40n of each of the groups arranged on concentric circles each emit light of the same spectral band.
- FIG. 1c shows how the reflection induction ring 11 with two material layers is arranged around the axial region “m” of the disk 10 and is bound to the outside 12 thereof. It further shows how the camera optics 30 is located in the central recess 23 and in recesses 24 of the support 20 having cooling fins 22, which lie against the walls of the recesses 24 and with their lighting zones at a distance "r" from the inside of the pane 10 Light emission elements 401,402,403,40n are arranged. An optically permeable liquid medium can be introduced into the spaces "r” between the luminous side of the emitters 401 to 40n and the pane 10.
- the schematically shown optics module 120 which is composed of an integrated carrier body 20 and a viewing window 10, is arranged, the image pick-up optics (not shown in each case) and the light emitters being or being arranged in the carrier body 20.
- the video sensor 50 and the emitter control electronics 60 as well as control electronics 55 with a shutter, video signal and higher-level emitter control electronics are accommodated within the housing 100.
- the camera and emitter are supplied with energy from an external 556 DC power supply.
- Control and control lines which operate bidirectionally, lead from the housing 100 into an external module 65 for the transmission of control and control data to a video visual control computer system 66 which performs the tasks of optimizing the camera sensitivity and exposure times , the beam intensity with regard to the image information quality, the spectral bands to be emitted and, ultimately, the groups of light emitters coordinated with one another in accordance with a desired beam geometry.
- Corresponding control and feedback lines go back to the data transmitter 66 and to the electronic control systems located in the housing 100.
- a video monitor 68 is connected to the computer 66, likewise externally, which ultimately provides an optimized, highly qualified, trouble-free and high-resolution visual image of the respective underwater "region of interest".
- the underwater direct view device according to FIG. 1 has basically the same structure as the device explained in more detail above, which can be used "on line” by a diver to visualize objects that can only be activated with light outside the “visible” range of the spectrum.
- control devices 50 and 60 provided for the control of the video camera and the light emission elements, an internal battery 69 for the Power supply and from the outside, for example, with pushbutton switch 102, without internal magnetic switch unit 64 which can be actuated mechanically.
- the monitor 75 is arranged behind a pressure-resistant window 110, and supplies the new display device of handles 101 at rt ° ⁇ ⁇ housing exterior holding divers coming from the optics module 12 ⁇ illuminated observation area, mcnt in the visible range detectable in visible information converted image information on line.
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
Abstract
Description
Claims
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU51721/93A AU5172193A (en) | 1992-10-23 | 1993-10-22 | Apparatus for underwater optical viewing |
| DE4395371T DE4395371D2 (de) | 1992-10-23 | 1993-10-22 | Gerät für die optische Unterwasser-Beobachtung |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| ATA2111/92 | 1992-10-23 | ||
| AT0211192A AT399606B (de) | 1992-10-23 | 1992-10-23 | Unterwasser-aufnahmegerät |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| WO1994010602A2 true WO1994010602A2 (de) | 1994-05-11 |
| WO1994010602A3 WO1994010602A3 (de) | 1994-07-21 |
Family
ID=3528015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/AT1993/000161 Ceased WO1994010602A2 (de) | 1992-10-23 | 1993-10-22 | Gerät für die optische unterwasser-beobachtung |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT399606B (de) |
| AU (1) | AU5172193A (de) |
| DE (1) | DE4395371D2 (de) |
| WO (1) | WO1994010602A2 (de) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015058730A1 (en) * | 2013-10-23 | 2015-04-30 | Koukaam A.S. | Irradiation equipment for cctv cameras |
| CN107807450A (zh) * | 2017-11-08 | 2018-03-16 | 中船重工中南装备有限责任公司 | 玻璃观察窗口密封结构 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CH573026A5 (de) * | 1974-06-11 | 1976-02-27 | Kaiser Josef Ag Fahrzeugwerk | |
| US4335944A (en) * | 1980-07-23 | 1982-06-22 | Duane Marshall | Apparatus for underwater image-recording as by sonar-triggered elapsed time strobe photography and the like |
| JPS6150946U (de) * | 1984-08-04 | 1986-04-05 | ||
| DE8802740U1 (de) * | 1988-03-02 | 1988-04-21 | Rausch, Wolfgang, 8990 Lindau | Kameraträger mit einer Ausleuchtvorrichtung und einer Kamera |
| US4918472A (en) * | 1989-06-21 | 1990-04-17 | Reed Thomas T | Waterproof camera window |
-
1992
- 1992-10-23 AT AT0211192A patent/AT399606B/de not_active IP Right Cessation
-
1993
- 1993-10-22 WO PCT/AT1993/000161 patent/WO1994010602A2/de not_active Ceased
- 1993-10-22 DE DE4395371T patent/DE4395371D2/de not_active Expired - Fee Related
- 1993-10-22 AU AU51721/93A patent/AU5172193A/en not_active Abandoned
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015058730A1 (en) * | 2013-10-23 | 2015-04-30 | Koukaam A.S. | Irradiation equipment for cctv cameras |
| CN107807450A (zh) * | 2017-11-08 | 2018-03-16 | 中船重工中南装备有限责任公司 | 玻璃观察窗口密封结构 |
| CN107807450B (zh) * | 2017-11-08 | 2024-01-05 | 中船重工中南装备有限责任公司 | 玻璃观察窗口密封结构 |
Also Published As
| Publication number | Publication date |
|---|---|
| AT399606B (de) | 1995-06-26 |
| WO1994010602A3 (de) | 1994-07-21 |
| DE4395371D2 (de) | 1996-09-26 |
| AU5172193A (en) | 1994-05-24 |
| ATA211192A (de) | 1994-10-15 |
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