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公开(公告)号：US11656276B2
公开(公告)日：2023-05-23
申请号：US17212238
申请日：2021-03-25
发明人： Hongxin Guo , Ashvanth Suresh
IPC分类号： G01R31/317 , G01R31/3177 , H03H7/06 , H03K19/21
CPC分类号： G01R31/31713 , G01R31/3177 , H03H7/06 , H03K19/21
摘要： A monitoring circuit and a method for function monitoring is disclosed where the device includes the input being connected with a first subassembly that detects a frequency range of the status signal, with the first subassembly being connected with a second subassembly to implement a logical signal combination. The second subassembly is connected with a third subassembly generating a delayed output signal. The method compares a frequency fsw of the status signal with a lower first cutoff frequency f1 and an upper second cutoff frequency f2. When the frequency fsw of the status signal is located within the predetermined frequency range, the functional reliability signal is provided with a first voltage level, and when the frequency fsw of the status signal is located outside of the predetermined frequency range, the functional reliability signal is provided with a second voltage level that is different from the first voltage level.
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公开(公告)号：US20210302497A1
公开(公告)日：2021-09-30
申请号：US17212238
申请日：2021-03-25
发明人： HONGXIN GUO , ASHVANTH SURESH
IPC分类号： G01R31/317 , H03K19/21 , H03H7/06 , G01R31/3177
摘要： A monitoring circuit and a method for function monitoring is disclosed where the device includes the input being connected with a first subassembly that detects a frequency range of the status signal, with the first subassembly being connected with a second subassembly to implement a logical signal combination. The second subassembly is connected with a third subassembly generating a delayed output signal. The method compares a frequency fsw of the status signal with a lower first cutoff frequency f1 and an upper second cutoff frequency f2. When the frequency fsw of the status signal is located within the predetermined frequency range, the functional reliability signal is provided with a first voltage level, and when the frequency fsw of the status signal is located outside of the predetermined frequency range, the functional reliability signal is provided with a second voltage level that is different from the first voltage level.
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公开(公告)号：US20210080073A1
公开(公告)日：2021-03-18
申请号：US17021491
申请日：2020-09-15
发明人： Dalibor Vlcek , Jan Kratochvil , Ondrej Hasa , Jan Grof
IPC分类号： F21S45/43 , F21S45/49 , F21S45/47 , F21Y115/10
摘要： The light device comprises a housing (1) covered with a transparent or semi-transparent cover (2) that delimit an inner chamber (3) inside the housing (1), a light unit (5) situated in the chamber (3) and equipped with at least one light source, a cooler (4) associated with the light unit (5), and a tubular cooling conduit (7) that passes through an opening (10) in the housing (1) into the chamber (3) to supply cooling medium (8) from the cooling medium (8) source installed outside the housing (1) to the cooler (4) and comprises a drive means (74) for forced flow of the cooling medium (8) in the tubular cooling conduit (7). The tubular cooling conduit (7) is connected to the cooler (4) in such a way that the cooling medium (8) does not escape from the tubular cooling conduit (7) and cooler (4) to the surrounding space in the chamber (3). Inside the tubular cooling conduit (7), one or more adjacent supply channels (72) are provided to supply the cooling medium (8) to the cooler (4) in one direction, and next to the supply channel (72) or channels (72), one or more exhaust channels (73) are provided to simultaneously discharge the cooling medium from the cooler (4) in the opposite direction out of the housing (1).
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公开(公告)号：US20200377006A1
公开(公告)日：2020-12-03
申请号：US16882796
申请日：2020-05-26
发明人： Tomas GLOSS , Jakub HRUSKA
摘要： An image projection module of a vehicle that includes a light source directed to a projection mask and through it to output optics which is adapted to direct the projected light onto a road near the vehicle. The projection mask is formed on a front wall of a thick lens, whereby this front wall is adapted to direct the projected light from the light source to a flat upper wall of the thick lens which is adapted to totally reflect the projected light onto a curved output wall of the thick lens which is adapted to emit the projected light onto the road into the desired form of the projected pattern. A thick lens for an image projection module of a vehicle.
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公开(公告)号：US10371342B2
公开(公告)日：2019-08-06
申请号：US15821334
申请日：2017-11-22
发明人： Tomas Gloss , Vit Simurda , Ondrej Matuska
IPC分类号： F21S43/245 , F21S43/30 , F21S43/239 , F21V8/00 , B60Q1/00 , F21S43/14 , F21S43/237 , F21S43/251 , F21S43/31 , F21S43/40
摘要： A light device, especially a signal lamp, for motor vehicles, comprising a carrier housing covered by a translucent cover, and an inner chamber in which at least one primary optical assembly is housed, and comprising a planar light guide to guide the light generated by a lighting unit. The light guide surface comprises a front output surface to emit light rays out of the light device and an input surface to bind light rays produced by the lighting unit. The light guide surface includes, on its side facing away from the front output surface, at least one reflective surface configured to direct light rays to, and through, the output surface out of the planar light guide to create, on the front output surface, an output light region with a light intensity which differs from light intensity shown by places adjacent to the region on the front output surface.
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公开(公告)号：US20190234576A1
公开(公告)日：2019-08-01
申请号：US16262339
申请日：2019-01-30
发明人： Tomas Mateju , Tomas Gloss
IPC分类号： F21S41/365 , F21S43/40 , F21S41/20 , F21S43/20 , H05K1/18
CPC分类号： F21S41/365 , F21S41/141 , F21S41/20 , F21S43/255 , F21S43/40 , F21Y2115/10 , H05K1/18 , H05K2201/10106
摘要： The invention relates to an optical system comprising two rows of light sources (1a, 1b) formed by LEDs. In each case, the entire row of light sources (1a, 1b) is arranged on one side of a double-sided printed circuit board (2) and each source (1a, 1b) in each row is associated with its own reflector (3a, 3b), whereby in front of the two rows of reflectors (3a, 3b) is arranged one optical filter (4), which is common to the two rows of reflectors (3a, 3b) and on whose output surface are provided pads (5) which are divided into two groups (51, 52), whereby each group (51, 52) is adapted to refract the light beams (6a, 6b) from the respective row of light sources (1a, 1b) to the direction (x) of illumination after these beams (6a, 6b) have been reflected from the respective row of reflectors (3a, 3b) associated with the respective row of the light sources (1a, 1b) and after these reflected beams (6a, 6b) have passed through the filter (4).
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公开(公告)号：US10359166B2
公开(公告)日：2019-07-23
申请号：US15220229
申请日：2016-07-26
发明人： Jan Kratochvil , Ondrej Hasa , Jan Grof , Milos Macicek , Radek Orlita
IPC分类号： F21S8/10 , F21S41/147 , F21S41/29 , F21S41/255 , F21S41/657 , F21S41/683 , F21S45/47 , F21S45/48
摘要： A light device, especially a headlight for motor vehicles, comprises a holding bushing (1), covered by a translucent cover (2), and an inner chamber (3) having mounted there in an optical system (5) for generation of light rays and enabling of controlled selective changes of a light trace on a projection surface. The optical system includes a lens (51) and a light assembly (52) comprising at least one light source and a carrier to carry the light source. The lens is arranged in a fixed position with respect to the position of the translucent cover, and the position of the light assembly is selectively adjustable in a controlled way with respect to the position of the lens by movement of the light assembly in direction (A) and/or by movement in direction (B), wherein the directions (A) and (B) are substantially perpendicular to direction of optical axis (C) of the lens.
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公开(公告)号：US10317600B2
公开(公告)日：2019-06-11
申请号：US15472916
申请日：2017-03-29
发明人： Tomas Gloss , Tomas Mateju , Jakub Hruska
IPC分类号： F21S43/27 , F21S43/14 , F21V8/00 , F21S43/241 , F21S43/243 , F21S43/249
摘要： The light guide, especially for motor vehicle signal lamps, comprises a collimator with a collimating wall for binding and routing light rays, and a light guiding body that continues the collimating wall, is of a material with refractive index (n), and is integral, spatially shaped, planar, and fitted at its end with an output emitting surface providing a signal light function. The first height (d) of the body at its beginning where it adjoins the collimating wall, is bigger than its second height where it passes into the emitting surface. The body is adapted to emit light rays generally within angle (ω) of diffusion from the optical axis (x), and comprises a transitional surface that is, in its profile towards the emitting surface, inclined towards the longitudinal axis of the profile. The ratio of inclination height (a) and inclination length (b) of the transitional surface is defined as: a b = tg ( 1 2 arc sin ( sin ω n ) )
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9.发明申请公开(公告)号：US20190063709A1
公开(公告)日：2019-02-28
申请号：US16109408
申请日：2018-08-22
发明人： Vit Slovacek , Pavel Vlcek , Jiri Harabis
CPC分类号： F21S41/24 , F21S41/32 , F21S43/14 , F21S43/19 , F21S43/237 , F21S43/245 , F21S43/247 , F21S43/31 , F21S43/40 , F21S43/50 , F21W2103/20 , G02B6/005
摘要： The optical system comprises at least one pair of adjacent light-guides (1a, 1b) of a longitudinal shape the surface of which comprises a shell (8) that connects two ends (6) of a light-guide (1a, 1b), and at least one pair of light sources (3), associated with the ends (6) of the light guides (1a, 1b) at the same side of the light guides (1a, 1b), to emit light rays (10) and to ensure their propagation in the direction from the end (6) of the light-guide (1a, 1b) further into the light-guide (1a, 1b) body. Either of the pair of the light-guides (1a, 1b) is equipped in its rear part with optical elements (2) to reflect light rays (10) to its longitudinal exit surface (7a) located on the shell (8) for their exit from the light-guide (1a,1b). The light-guides (1a, 1b) of the said pair of adjacent light-guides (1a, 1b) are located with respect to each other in such a way that in the exit direction of the light rays (10) from the exit surface (7a) one of the light-guides (1a, 1b) acts as the front one (1a) and the other as the rear one (1b) while the rays (10) exiting the rear light-guide (1b) enter the front light-guide (1a) through its shell (8) and exit the front light-guide (1a) via its longitudinal supplementary exit surface (7b) that creates, together with the exit surface (7a) of the front light-guide (1a), the complete exit surface (7). The light sources (3) of the pair of the light-guides (1a, 1b) are time-controlled in such a way that the required dynamic light display is achieved on the complete exit surface (7).
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公开(公告)号：US10184635B2
公开(公告)日：2019-01-22
申请号：US15332344
申请日：2016-10-24
发明人： Colby J. Childress , Timothy Pelech
IPC分类号： F21V9/00 , F21S43/239 , F21S41/24 , F21S43/245 , F21V8/00 , F21S43/14 , F21S43/237 , F21S43/247
摘要： A lighting device includes a housing, the housing comprising an opening. The lighting device also comprises a lens operably disposed in the opening, the lens having an outer viewable face and an opposed inner face, the lens comprising an integrally formed axially-extending light guide, the light guide comprising a light inlet end, a light outlet comprising a portion of the outer viewable face, and a light transmission portion, the light transmission portion comprising a light reflecting structure disposed on the inner face. The lighting device also includes a light source, the light guide configured to receive light rays from the light source into the light inlet end, transmit the rays via internal reflectance along light transmission portion to the light reflecting structures where they are reflected outwardly away from the lighting device in a principal direction through the outer viewable face.
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