Viewing apparatus and work station

• US 5,790,216 A
• Filed: 05/24/1996
• Issued: 08/04/1998
• Est. Priority Date: 11/28/1993
• Status: Expired due to Fees

• Current Assignee: Smartlight Ltd.
• Original Assignee: Smartlight Ltd.
• Inventors: Inbar, Dan, Wolf, Hanan
• Primary Examiner(s): Sikes, William L.
• Assistant Examiner(s): TON, MINH TOAN T
• Application Number:
  US08/648,008
• Time in Patent Office: 802 Days
• Field of Search: 349/83, 349/61, 40/361, 40/362, 40/363
• US Class Current: 349/83
• CPC Class Codes: G02B 27/026 and a display device, e.g. CRT, LCD, for adding markings or signs or to enhance the contrast of the viewed object
• CPC Class Codes: G02F 1/13306 Circuit arrangements or driving methods for the control of single liquid crystal cells G02F1/132, G02F1/133382 take precedence
• CPC Class Codes: G02F 1/13318 Circuits comprising a photodetector
• CPC Class Codes: G02F 1/13336 Combining plural substrates to produce large-area displays, e.g. tiled displays

Abstract

Viewing apparatus including a transparency viewing apparatus (18, 19) and an electronic data display (58) unit mounted, preferably side-by-side in a housing.

Claims

1. Viewing apparatus comprising:

a housing;

a transparency viewing apparatus mounted in said housing; and

an electronic data display unit mounted in said housing;

a source of backlighting for the transparency viewing apparatus and the electronic display unit,

wherein light which backlights said transparency has a higher intensity than light exiting the electronic data display unit.

2. Apparatus according to claim 1 wherein the transparency viewing apparatus and the electronic display unit are mounted side-by-side.

3. Apparatus according to claim 1 wherein said transparency viewing apparatus comprises a backlighted liquid crystal array, LCA, with selectively opacifyable elements.

4. Apparatus according to claim 1 wherein said electronic data display unit comprises a backlighted liquid crystal array, LCA, with selectively opacifyable elements.

5. Apparatus according to claim 3 wherein said electronic data display unit comprises a backlighted liquid crystal array, LCA, with selectively opacifyable elements.

6. Apparatus according to claim 5 wherein said transparency viewing apparatus and said electronic display unit together comprise a LCA.

7. Apparatus according to claim 3 wherein said liquid crystal array comprises:

a plurality of liquid crystal, LC, elements grouped in sub-arrays, whereby each sub-array is separately addressed from the other sub-arrays; and

means for operating each of the sub-arrays in either a high resolution mode, in which the LC elements in the sub-array are separately addressed, or in a low-resolution mode, in which all of the LC elements in the sub-array are collectively addressed.

8. Apparatus according to claim 7 wherein sub-arrays which are partly overlaid by a transparency are operated in the high resolution mode.

9. Apparatus according to claim 4 wherein said liquid crystal display comprises:

a plurality of liquid crystal, LC, elements grouped in sub-arrays, whereby each sub-array is separately addressed from the other sub-arrays; and

means for operating each of the sub-arrays in either a high resolution mode, in which the LC elements in the sub-array are separately addressed, or in a low-resolution mode, in which all of the LC elements in the sub-array are collectively addressed.

10. Apparatus according to claim 9 wherein all of the sub-arrays in the electronic display unit are exclusively operated in the high-resolution mode.

11. Apparatus according to claim 1 and further comprising means for sensing information registered on a transparency and providing a corresponding input to the electronic display unit operative to display information related to the transparency.

12. Apparatus according to claim 11 wherein the means for sensing comprises an optical sensor operative to read bar-coded information registered on the transparency.

13. Apparatus according to claim 1 wherein the data display unit comprises a light emitting diode, LED, display.

14. Apparatus according to claim 1 wherein the data display unit comprises an image display operative to display electronic images.

15. Apparatus according to claim 14 wherein said image display is also operative to display alphanumeric information.

16. Apparatus according to claim 14 and also including means for receiving images from a memory and for displaying them on said image display.

17. Apparatus according to claim 16 wherein said images are digital medical images.

18. Apparatus according to claim 1 further comprising an external information source operative to generate an informative input to the electronic display unit thereby to display information from said external information source.

19. Apparatus according to claim 1 and further comprising a control unit operative to receive user commands generated from the user interface and to control the information displayed on the electronic display unit in accordance with the received user commands.

20. Apparatus according to claim 1 and further comprising a control unit operative to receive user commands generated from the user interface and to control the operation of said transparency display apparatus in accordance with the received user commands.

21. Apparatus according to claim 19 wherein said control unit is further operative to control the operation of said transparency display apparatus in accordance with received user commands.

22. Apparatus according to claim 19 wherein the user interface includes a keyboard.

23. Apparatus according to claim 19 wherein the user interface includes a control mouse.

24. Viewing apparatus comprising:

a housing;

a transparency viewing apparatus mounted in said housing; and

an electronic data display unit mounted in said housing;

a source of backlighting for the transparency viewing apparatus and the electronic display unit,

wherein the source of backlighting is arranged such that back illumination of said transparency viewing apparatus is greater than back illumination of the electronic data display unit.