JPH0245535U - - Google Patents

Info

Publication number

JPH0245535U

JPH0245535U JP12231788U JP12231788U JPH0245535U JP H0245535 U JPH0245535 U JP H0245535U JP 12231788 U JP12231788 U JP 12231788U JP 12231788 U JP12231788 U JP 12231788U JP H0245535 U JPH0245535 U JP H0245535U

Authority

JP

Japan

Prior art keywords

light

light source

optical system

projection device

focusing optical

Prior art date

1988-09-19

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 2
• 230000003287 optical effect Effects 0.000 claims 3
• 238000005259 measurement Methods 0.000 claims 1
• 238000002834 transmittance Methods 0.000 claims 1
• 238000010586 diagram Methods 0.000 description 2