Device for measuring UV-radiation

• US 4,851,685 A
• Filed: 07/01/1987
• Issued: 07/25/1989
• Est. Priority Date: 11/05/1985
• Status: Expired due to Fees

• Current Assignee: Kosmedico Vertrieb Kosmetischer und Medizinischer Lampen GmbH
• Original Assignee: Kosmedico Vertrieb Kosmetischer und Medizinischer Lampen GmbH
• Inventors: Dubgen, Oswald
• Primary Examiner(s): LaRoche, Eugene R.
• Assistant Examiner(s): MIS, DAVID C
• Application Number:
  US07/105,871
• Time in Patent Office: 755 Days
• Field of Search: 250/372, 364/559
• US Class Current: 250/372
• CPC Class Codes: G01J 1/429 applied to measurement of ultraviolet light using counting tubes G01T
• CPC Class Codes: G01J 2001/0257 portable

Abstract

A hand held device for measurement of radiation includes a sensor unit and digital processing unit between the sensor unit and a digital display unit. The sensor unit together with a signal processing unit and the digital display unit are accommodated in a common housing, and a position-dependent switch together with a switchable coding circuit are provided, by means of which the digital display unit may be switched so that it can be read in a position reversed by 180° in a plane thereof.

Claims

1. A device, particularly a hand-held device for measurement of radiation, particularly UV-radiation, with a sensor unit, and with a signal processing unit between the sensor unit, and a digital display unit characterized by the sensor unit (11), together with the signal processing unit (16) and the digital display unit (21) being accomodated in a common housing (26), and in that a position-dependent switch (37) together with a switchable coding circuit (19) are provided, by means of which the digital display unit (21) is switchable so that it can be read in a position reversed by 180°

in a plane thereof.

2. Device according to claim 1, characterized in that in an approximately parallelepiped hand-held housing (26) there is disposed a sensor unit (11) on a front side (27) thereof, said front side having a small surface, and in that there is disposed perpendicularly thereto a digital display unit (21) on a longitudinal side (28) thereof, said longitudinal side having a large surface.

3. Device according to claim 1, characterized in that the switchable coding circuit (19) is formed by a logic matrix circuit, whose inputs are connected with a control circuit (18) for the digital display unit (21), which latter is formed as a 7-segment indicating unit, said inputs being in turn connected through a respective logic modular block (41, 42) with two mutually point-symmetrical segment indicating units (31) of the display unit (21), and that the segment indicating units (31) are controlled from the position-dependent switch (37).

4. Device according to claim 3, characterized by the control circuit (18) being connected with a key (22) for storage of the instantaneous display.

5. Device according to claim 1, wherein said sensor unit further contains a radiation filter.