US5048955A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring color temperature
Assignee: Bron Elektronik AG
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Filing: 1989-09-29
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Granted: 1991-09-17
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Expires: 2009-09-29
Abstract
Abstract A device for measuring color temperature, having at least one measuring diffuser and at least one indicator for the color temperature, as well as operating elements for turning the device on and off, for resetting the measured values, and for initiating a measurement. To be able to easily and rapidly set or adjust the color temperature, the device has at least one adjustment control element for at least one remote control transmitter for adjusting the color temperature of a light source. A photographer can set or adjust the color temperature in a remotely controlled manner via the adjustment element and the remote control transmitter.
Inventors
- 👤 Jean-Francois Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 09:13
CPC Classifications
G; G01; G01J; G01J5/00; G01J5/60
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
142 words
In a device for measuring color temperature, having at least one measuring diffuser and at least one indicator for said color temperature, as well as operating elements for turning said device on and off, for resetting measured values, and for initiating a measurement, the improvement comprising: two remote control transmitters for adjusting the color temperature of a light source, said remote control transmitters being installed within the device for measuring color temperature itself; one respective adjustment control element for each one of said remote control transmitters also within the device for measuring color temperature, so that measuring and adjusting of color temperature is undertaken in the same device, with said two adjustment control elements respectively adjusting said color temperature to higher or lower values; and said two remote control transmitters being operatively connected with a respective one of said adjustment control elements.
Claim 2
Dependent Claim
142 words
In a device for measuring color temperature, having at least one measuring diffuser and at least one indicator for said color temperature, as well as operating elements for turning said device on and off, for resetting measured values, and for initiating a measurement, the improvement comprising: two remote control transmitters for adjusting the color temperature of a light source, said remote control transmitters being installed within the device for measuring color temperature itself; one respective adjustment control element for each one of said remote control transmitters also within the device for measuring color temperature, so that measuring and adjusting of color temperature is undertaken in the same device, with said two adjustment control elements respectively adjusting said color temperature to higher or lower values; and said two remote control transmitters being operatively connected with a respective one of said adjustment control elements.
Claim 3
Dependent Claim
130 words
In a device for measuring color temperature, having at least one measuring diffuser and at least one indicator for said color temperature, as well as operating elements for turning said device on and off, for resetting measured values, and for initiating a measurement, the improvement comprising: at least one remote control transmitter for adjusting the color temperature of a light source, said remote control transmitter being installed within the device for measuring color temperature itself; at least one adjustment control element for said at least one remote control transmitter also within the device for measuring color temperature, so that measuring and adjusting of color temperature is undertaken in the same device; and at least one adjustment control element provided for remote control adjustment of filter values at a flash unit.
Claim 4
Dependent Claim
130 words
In a device for measuring color temperature, having at least one measuring diffuser and at least one indicator for said color temperature, as well as operating elements for turning said device on and off, for resetting measured values, and for initiating a measurement, the improvement comprising: at least one remote control transmitter for adjusting the color temperature of a light source, said remote control transmitter being installed within the device for measuring color temperature itself; at least one adjustment control element for said at least one remote control transmitter also within the device for measuring color temperature, so that measuring and adjusting of color temperature is undertaken in the same device; and at least one adjustment control element provided for remote control adjustment of filter values at a flash unit.
Claim 5
Dependent Claim
48 words
A device according to claim 2, which includes at least one operating element for said filter values such that actuation thereof, as well as of said at least one adjustment control element, activates said at least one remote control transmitter to emit signal means for filter value adjustment.
Claim 6
Dependent Claim
152 words
In a device for measuring color temperature, having at least one measuring diffuser and at least one indicator for said color temperature, as well as operating elements for turning said device on and off, for resetting measured values, and for initiating a measurement, the improvement comprising: at least one remote control transmitter for adjusting the color temperature of a light source, said remote control transmitter being installed within the device for measuring color temperature itself; at least one adjustment control element for said at least one remote control transmitter also within the device for measuring color temperature, so that measuring and adjusting of color temperature is undertaken in the same device; at least one further remote control transmitter for release of a flash in a remotely controlled manner; and said first mentioned remote control transmitter and said further remote control transmitter are disposed on different sides of a housing of said device.
Claim 7
Dependent Claim
152 words
In a device for measuring color temperature, having at least one measuring diffuser and at least one indicator for said color temperature, as well as operating elements for turning said device on and off, for resetting measured values, and for initiating a measurement, the improvement comprising: at least one remote control transmitter for adjusting the color temperature of a light source, said remote control transmitter being installed within the device for measuring color temperature itself; at least one adjustment control element for said at least one remote control transmitter also within the device for measuring color temperature, so that measuring and adjusting of color temperature is undertaken in the same device; at least one further remote control transmitter for release of a flash in a remotely controlled manner; and said first mentioned remote control transmitter and said further remote control transmitter are disposed on different sides of a housing of said device.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-16 | 1995-03-18 | 1995-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-16 | 1999-03-18 | 1999-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-16 | 2003-03-18 | 2003-09-17 | $7700.00 | Window Closed / Lapsed |