MULTI-LAMP PROJECTION DISPLAY APPARATUS

• US 20090122276A1
• Filed: 11/10/2008
• Published: 05/14/2009
• Est. Priority Date: 11/13/2007
• Status: Active Grant

• Current Assignee: Sony Corporation (Sony Group Corp.)
• Original Assignee: Sony Corporation (Sony Group Corp.)
• Inventors: Ito, Yoshinori
• Granted Patent: US 8,070,301 B2
• Time in Patent Office: Days
• US Class Current: 353/87
• CPC Class Codes: G03B 21/145 Housing details, e.g. position adjustments thereof
• CPC Class Codes: G03B 21/2013 Plural light sources
• CPC Class Codes: G03B 21/2026 Gas discharge type light sources, e.g. arcs
• CPC Class Codes: H05B 47/155 Coordinated control of two or more light sources

Abstract

A multi-lamp projection display apparatus is provided. The multi-lamp projection display apparatus includes a plurality of detachable lamp boxes each having a lamp used as a light source and a memory; and a control device configured to assign an address of the memory in each of the lamp boxes in accordance with an attaching position of the lamp box and write information into the memory.

Claims

1. A multi-lamp projection display apparatus, comprising:

a plurality of detachable lamp boxes each including a lamp used as a light source and a memory; and

control means for assigning an address of the memory in each of the lamp boxes in accordance with an attaching position of the lamp box and writing information into the memory.

2. The multi-lamp projection display apparatus according to claim 1,

wherein the memory in each of the lamp boxes attached is connected as a slave device to a common bus, and

wherein the control means is configured to assign a slave address of the memory on the bus in accordance with the attaching position of the lamp box.

3. The multi-lamp projection display apparatus according to claim 1, wherein

the control means is configured to write information about the operating time of the lamp in the lamp box into the memory included therein.

4. The multi-lamp projection display apparatus according to claim 1, wherein

the control means is configured to write information about an operating environment into the memory when any failure occurs in the multi-lamp projection display apparatus.

5. The multi-lamp projection display apparatus according to claim 1, wherein

the control means is configured to write different lamp-box numbers into the memories mounted on the respective lamp boxes attached and determine whether the lamp boxes at the attaching positions are interchanged with each other by reading the lamp-box numbers.

6. A multi-lamp projection display apparatus, comprising:

a plurality of detachable lamp boxes each including a lamp used as a light source and a memory; and

a control device configured to assign an address of the memory in each of the lamp boxes in accordance with an attaching position of the lamp box and write information into the memory.