JPH01123801U - - Google Patents

Info

Publication number

JPH01123801U

JPH01123801U JP1627588U JP1627588U JPH01123801U JP H01123801 U JPH01123801 U JP H01123801U JP 1627588 U JP1627588 U JP 1627588U JP 1627588 U JP1627588 U JP 1627588U JP H01123801 U JPH01123801 U JP H01123801U

Authority

JP

Japan

Prior art keywords

light source

source lamp

shielding tube

diffusion filter

inner peripheral

Prior art date

1988-02-12

Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)

Pending

Links

• Espacenet
• Global Dossier
• Discuss

• 238000009792 diffusion process Methods 0.000 claims description 3
• 230000002093 peripheral effect Effects 0.000 claims description 3
• 230000003287 optical effect Effects 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2